Clinical Psychiatry News

Researchers have identified four distinct clinical profiles for young people at risk for serious self-harm. The profiles were developed from their study of children and adolescents aged 5-18 years who had been admitted with a neuropsychiatric event to two children’s hospitals.

The researchers used Bayesian regression to identify the profiles developed from 32 covariates: age, sex, and 30 mental health diagnostic groups from April 2016 to March 2020. The profiles include low-, moderate-, high- and very-high-risk categories.

The study, led by Mert Sekmen with the division of hospital medicine at Monroe Carell Jr. Children’s Hospital, and a student at Vanderbilt University Medical Center in Nashville, Tenn., included 1,098 children, average age 14. Of those, 406 (37%) were diagnosed with a self-harm event.

Traditionally, single diagnoses have been linked with risk of self-harm, independent of other comorbidities, but this study gauges risk for a set of diagnoses.

Findings were published online in Pediatrics.

The risk groups were described as follows:

• Low risk. (45% of the study population; median risk of 0.04 (interquartile range, 0.03-0.04; odds ratio, 0.08). The group included children aged 5-9 years with a non–mental health diagnosis, and without mood, behavioral, psychotic, developmental, trauma, or substance-related disorders.
• Moderate risk. (8% of the study group). This group had the same risk as the baseline risk for the entire cohort (37%) and served as the reference group, with a median risk of 0.30 (IQR, 0.27-0.33). This profile was characterized by several mood disorders and behavioral disorders but without depressive disorders.
• High risk. (36%) This group had an average risk of 0.69 (IQR, 0.67-0.71; OR, 5.09). This profile included female adolescents ages 14-17 with depression and anxiety in conjunction with substance- and trauma-related disorders. Personality and eating disorders were significant in this group. Importantly, the authors wrote, the high-risk group did not include behavioral and developmental disorders.
• Very high risk. (11%) The very-high-risk profile had the highest average risk of 0.79 (IQR, 0.73-0.79; OR, 7.21) and included male children aged 10-13. This profile, like the high-risk profile, included anxiety and depressive disorders. The very-high-risk profile differed from the high-risk with its inclusion of bipolar disorder; attention-deficit/hyperactivity disorder; and trauma-related and developmental disorders such as autism spectrum disorder or intellectual disability, along with conduct disorders. Neither the high- nor the very-high-risk profiles included a concurrent non–mental health diagnosis.

Differences by sex

The authors explained some of the differences by sex. They noted that in a study of children aged 5-11, deaths by suicide were more prevalent among boys. A mental health diagnosis was identified in 31%, the most common being ADHD, depression, and other unspecified co-occurring disorders.

“The very-high-risk group also reflects a concerning rise in death by suicide among (males) aged 10-13, who have seen rates nearly triple from 2007 to 2017,” the authors wrote.

The authors pointed out that, although incidence of anxiety and depressive disorders between male and female children is much the same before adolescence, “female adolescents are twice as likely to be diagnosed with either disorder during adolescence. Girls also have higher rates of suicidal ideation and attempts after puberty.”

Eating disorders were also included in the high-risk profile. A study showed that emergency department visits for adolescent girls attempting suicide were 51% higher from February to March 2021, compared with the same period in the pre-COVID-19 year 2019.

Jason Lewis, PhD, psychologist and section director of mood, anxiety and trauma disorders in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia, who was not part of the research team, said the “constellations of risk factors put into acuity levels” helps to better project risk than knowing the risk associated with a particular diagnosis.
 

Gap closing between young children, adolescents

Dr. Lewis said he was surprised by the young age of 10-13 among the boys in the highest-risk category. That speaks to the differences from standard thinking this paper points out, he said. “Generally, we think about adolescents as being at the highest risk of suicide death and suicidal behavior,” he said.

Dr. Lewis said it’s important to note that the authors acknowledge these profiles are not static. He gave an example that the rate of suicide deaths among females is rising.

“As things like that change, some of these risk profiles will change as well.”

Dr. Lewis said the profiles may be especially helpful to medical providers in emergency departments or those making discharge decisions who don’t have an ongoing relationship with a patient.

The information could also help educators and lay people, “think about suicide in the youth population in ways we don’t normally think about it,” Dr. Lewis said.

Covariates considered for profiles were determined through expert consensus between pediatric psychiatrists, general pediatricians, pediatric hospitalists, pediatric complex care physicians, and pediatric pharmacoepidemiologists.

Age was broken into three groups: 5-9 years, 10-13 years, and 14-17 years based on Centers for Disease Control and Prevention reporting and previous studies that showed significant increases in suicide rates in these age-based subgroups.
 

Results are preliminary

The authors note that the profiles were developed using data from 1,000 children with neuropsychiatric complaints at two academic children’s hospitals and are thus preliminary.

“Future studies should focus on validating these risk profiles in a larger, more heterogeneous population of children and adolescents,” the authors write.

They also acknowledge that they were not able to include factors such as medication use, previous suicidal behavior, and family and social support, which also factor into risk.

The study authors and Dr. Lewis report no relevant financial relationships.

Researchers have identified four distinct clinical profiles for young people at risk for serious self-harm. The profiles were developed from their study of children and adolescents aged 5-18 years who had been admitted with a neuropsychiatric event to two children’s hospitals.

The researchers used Bayesian regression to identify the profiles developed from 32 covariates: age, sex, and 30 mental health diagnostic groups from April 2016 to March 2020. The profiles include low-, moderate-, high- and very-high-risk categories.

The study, led by Mert Sekmen with the division of hospital medicine at Monroe Carell Jr. Children’s Hospital, and a student at Vanderbilt University Medical Center in Nashville, Tenn., included 1,098 children, average age 14. Of those, 406 (37%) were diagnosed with a self-harm event.

Traditionally, single diagnoses have been linked with risk of self-harm, independent of other comorbidities, but this study gauges risk for a set of diagnoses.

Findings were published online in Pediatrics.

The risk groups were described as follows:

• Low risk. (45% of the study population; median risk of 0.04 (interquartile range, 0.03-0.04; odds ratio, 0.08). The group included children aged 5-9 years with a non–mental health diagnosis, and without mood, behavioral, psychotic, developmental, trauma, or substance-related disorders.
• Moderate risk. (8% of the study group). This group had the same risk as the baseline risk for the entire cohort (37%) and served as the reference group, with a median risk of 0.30 (IQR, 0.27-0.33). This profile was characterized by several mood disorders and behavioral disorders but without depressive disorders.
• High risk. (36%) This group had an average risk of 0.69 (IQR, 0.67-0.71; OR, 5.09). This profile included female adolescents ages 14-17 with depression and anxiety in conjunction with substance- and trauma-related disorders. Personality and eating disorders were significant in this group. Importantly, the authors wrote, the high-risk group did not include behavioral and developmental disorders.
• Very high risk. (11%) The very-high-risk profile had the highest average risk of 0.79 (IQR, 0.73-0.79; OR, 7.21) and included male children aged 10-13. This profile, like the high-risk profile, included anxiety and depressive disorders. The very-high-risk profile differed from the high-risk with its inclusion of bipolar disorder; attention-deficit/hyperactivity disorder; and trauma-related and developmental disorders such as autism spectrum disorder or intellectual disability, along with conduct disorders. Neither the high- nor the very-high-risk profiles included a concurrent non–mental health diagnosis.

Differences by sex

The authors explained some of the differences by sex. They noted that in a study of children aged 5-11, deaths by suicide were more prevalent among boys. A mental health diagnosis was identified in 31%, the most common being ADHD, depression, and other unspecified co-occurring disorders.

“The very-high-risk group also reflects a concerning rise in death by suicide among (males) aged 10-13, who have seen rates nearly triple from 2007 to 2017,” the authors wrote.

The authors pointed out that, although incidence of anxiety and depressive disorders between male and female children is much the same before adolescence, “female adolescents are twice as likely to be diagnosed with either disorder during adolescence. Girls also have higher rates of suicidal ideation and attempts after puberty.”

Eating disorders were also included in the high-risk profile. A study showed that emergency department visits for adolescent girls attempting suicide were 51% higher from February to March 2021, compared with the same period in the pre-COVID-19 year 2019.

Jason Lewis, PhD, psychologist and section director of mood, anxiety and trauma disorders in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia, who was not part of the research team, said the “constellations of risk factors put into acuity levels” helps to better project risk than knowing the risk associated with a particular diagnosis.
 

Gap closing between young children, adolescents

Dr. Lewis said he was surprised by the young age of 10-13 among the boys in the highest-risk category. That speaks to the differences from standard thinking this paper points out, he said. “Generally, we think about adolescents as being at the highest risk of suicide death and suicidal behavior,” he said.

Dr. Lewis said it’s important to note that the authors acknowledge these profiles are not static. He gave an example that the rate of suicide deaths among females is rising.

“As things like that change, some of these risk profiles will change as well.”

Dr. Lewis said the profiles may be especially helpful to medical providers in emergency departments or those making discharge decisions who don’t have an ongoing relationship with a patient.

The information could also help educators and lay people, “think about suicide in the youth population in ways we don’t normally think about it,” Dr. Lewis said.

Covariates considered for profiles were determined through expert consensus between pediatric psychiatrists, general pediatricians, pediatric hospitalists, pediatric complex care physicians, and pediatric pharmacoepidemiologists.

Age was broken into three groups: 5-9 years, 10-13 years, and 14-17 years based on Centers for Disease Control and Prevention reporting and previous studies that showed significant increases in suicide rates in these age-based subgroups.
 

Results are preliminary

The authors note that the profiles were developed using data from 1,000 children with neuropsychiatric complaints at two academic children’s hospitals and are thus preliminary.

“Future studies should focus on validating these risk profiles in a larger, more heterogeneous population of children and adolescents,” the authors write.

They also acknowledge that they were not able to include factors such as medication use, previous suicidal behavior, and family and social support, which also factor into risk.

The study authors and Dr. Lewis report no relevant financial relationships.

Researchers have identified four distinct clinical profiles for young people at risk for serious self-harm. The profiles were developed from their study of children and adolescents aged 5-18 years who had been admitted with a neuropsychiatric event to two children’s hospitals.

The researchers used Bayesian regression to identify the profiles developed from 32 covariates: age, sex, and 30 mental health diagnostic groups from April 2016 to March 2020. The profiles include low-, moderate-, high- and very-high-risk categories.

The study, led by Mert Sekmen with the division of hospital medicine at Monroe Carell Jr. Children’s Hospital, and a student at Vanderbilt University Medical Center in Nashville, Tenn., included 1,098 children, average age 14. Of those, 406 (37%) were diagnosed with a self-harm event.

Traditionally, single diagnoses have been linked with risk of self-harm, independent of other comorbidities, but this study gauges risk for a set of diagnoses.

Findings were published online in Pediatrics.

The risk groups were described as follows:

• Low risk. (45% of the study population; median risk of 0.04 (interquartile range, 0.03-0.04; odds ratio, 0.08). The group included children aged 5-9 years with a non–mental health diagnosis, and without mood, behavioral, psychotic, developmental, trauma, or substance-related disorders.
• Moderate risk. (8% of the study group). This group had the same risk as the baseline risk for the entire cohort (37%) and served as the reference group, with a median risk of 0.30 (IQR, 0.27-0.33). This profile was characterized by several mood disorders and behavioral disorders but without depressive disorders.
• High risk. (36%) This group had an average risk of 0.69 (IQR, 0.67-0.71; OR, 5.09). This profile included female adolescents ages 14-17 with depression and anxiety in conjunction with substance- and trauma-related disorders. Personality and eating disorders were significant in this group. Importantly, the authors wrote, the high-risk group did not include behavioral and developmental disorders.
• Very high risk. (11%) The very-high-risk profile had the highest average risk of 0.79 (IQR, 0.73-0.79; OR, 7.21) and included male children aged 10-13. This profile, like the high-risk profile, included anxiety and depressive disorders. The very-high-risk profile differed from the high-risk with its inclusion of bipolar disorder; attention-deficit/hyperactivity disorder; and trauma-related and developmental disorders such as autism spectrum disorder or intellectual disability, along with conduct disorders. Neither the high- nor the very-high-risk profiles included a concurrent non–mental health diagnosis.

Differences by sex

The authors explained some of the differences by sex. They noted that in a study of children aged 5-11, deaths by suicide were more prevalent among boys. A mental health diagnosis was identified in 31%, the most common being ADHD, depression, and other unspecified co-occurring disorders.

“The very-high-risk group also reflects a concerning rise in death by suicide among (males) aged 10-13, who have seen rates nearly triple from 2007 to 2017,” the authors wrote.

The authors pointed out that, although incidence of anxiety and depressive disorders between male and female children is much the same before adolescence, “female adolescents are twice as likely to be diagnosed with either disorder during adolescence. Girls also have higher rates of suicidal ideation and attempts after puberty.”

Eating disorders were also included in the high-risk profile. A study showed that emergency department visits for adolescent girls attempting suicide were 51% higher from February to March 2021, compared with the same period in the pre-COVID-19 year 2019.

Jason Lewis, PhD, psychologist and section director of mood, anxiety and trauma disorders in the department of child and adolescent psychiatry and behavioral sciences at Children’s Hospital of Philadelphia, who was not part of the research team, said the “constellations of risk factors put into acuity levels” helps to better project risk than knowing the risk associated with a particular diagnosis.
 

Gap closing between young children, adolescents

Dr. Lewis said he was surprised by the young age of 10-13 among the boys in the highest-risk category. That speaks to the differences from standard thinking this paper points out, he said. “Generally, we think about adolescents as being at the highest risk of suicide death and suicidal behavior,” he said.

Dr. Lewis said it’s important to note that the authors acknowledge these profiles are not static. He gave an example that the rate of suicide deaths among females is rising.

“As things like that change, some of these risk profiles will change as well.”

Dr. Lewis said the profiles may be especially helpful to medical providers in emergency departments or those making discharge decisions who don’t have an ongoing relationship with a patient.

The information could also help educators and lay people, “think about suicide in the youth population in ways we don’t normally think about it,” Dr. Lewis said.

Covariates considered for profiles were determined through expert consensus between pediatric psychiatrists, general pediatricians, pediatric hospitalists, pediatric complex care physicians, and pediatric pharmacoepidemiologists.

Age was broken into three groups: 5-9 years, 10-13 years, and 14-17 years based on Centers for Disease Control and Prevention reporting and previous studies that showed significant increases in suicide rates in these age-based subgroups.
 

Results are preliminary

The authors note that the profiles were developed using data from 1,000 children with neuropsychiatric complaints at two academic children’s hospitals and are thus preliminary.

“Future studies should focus on validating these risk profiles in a larger, more heterogeneous population of children and adolescents,” the authors write.

They also acknowledge that they were not able to include factors such as medication use, previous suicidal behavior, and family and social support, which also factor into risk.

The study authors and Dr. Lewis report no relevant financial relationships.

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

BOSTON – The investigational drug donanemab yielded greater amyloid clearance and amyloid plaque reduction than aducanumab in early, symptomatic Alzheimer’s disease, according to the results of a head-to-head study.

Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.

Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.

Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.

“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.

The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
 

Multicenter, head-to-head trial

Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.

TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.

Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.

Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.

After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).

Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).

Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).

Investigators also noted a greater reduction in plasma ptau217 with donanemab.

Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.

There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.

“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.

There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.

That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.

The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.

“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.

Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
 

Questions remain

“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.

Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”

Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.

“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.

It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.

“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”

The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

WASHINGTON – A novel program for parents of highly dependent adult children reduces parental burden and anxiety in their offspring, a new pilot study shows.

Known as failure to launch (FTL) syndrome, the criteria for this condition include the absence of a neurodevelopmental, mental, or intellectual condition, difficulty adapting to the challenges of adulthood, and living with or at the expense of parents.

Results suggest that the program benefits families dealing with FTL, said study investigator Uri Berger, PhD, postdoctoral associate, Yale Child Study Center Anxiety and Mood Disorders Program, New Haven, Conn.

“If you encounter parents who are say 50-60 years old who have a child with FTL, you can tell them there’s something they can do; there’s work they can do even if their child is refusing to go to therapy,” he said.

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Anxious, isolated

Estimates suggest that there are 3.3 million physically able adults with FTL and that the disorder may be on the rise. These individuals often present with mental health symptoms including anxiety, depression, and suicidality, and tend to be socially isolated.

The investigators noted that intervening is often challenging because individuals with the syndrome are frequently noncompliant with therapy, and currently there is no standard of care.

“The longer you’re isolated, the harder it is getting out of your cocoon, and when these adult children get to the point where they seek help, they’re less likely to comply,” he said. However, he noted, this is not because they are lazy; it’s that they’re “very, very anxious.”

Parents and other family members are also negatively affected. Dr. Berger noted that 15% of parents of a child with FTL equate their caregiver burden with having a family member with a chronic physical illness. “It’s huge; parents go through hell and it’s very hard on them. Many believe it is their fault and they feel a lot of shame.”

Supportive Parenting for Anxious Childhood Emotions (SPACE) is a manualized, parent-based program for childhood anxiety and obsessive-compulsive disorder. It has been tested in clinical trials and found to be noninferior to cognitive behavioral therapy for childhood anxiety.

The research adapted it to treat FTL. SPACE-FTL focuses on reducing parents’ family accommodation (FA), a descriptor for a child’s excessive dependence on their parents to help them avoid anxiety-provoking situations.

The study examined the feasibility, acceptability, and treatment satisfaction and its effect on adult child psychopathology symptoms, parents’ FA, and the paternal burden of caring for adult children.

The study included parents (mean age, 59.46 years; 85% female) of 40 adult children with FTL (mean age, 23.51 years; 20% female) from across the United States.

Parents were randomized to a 13-week wait-list or the SPACE-FTL program, which involves 13-20 therapy sessions, depending on the need. The average number of sessions in the study was 15. The program has five key components:

• Providing information emphasizing FTL as not a character flaw but a problem with anxiety.
• Helping parents identify how they accommodate their child’s behavior, and facilitating an environment that encourages independence.
• Getting parents to show acceptance and confidence in their child who’s trying to overcome anxiety when, for example, they seek employment, instead of being overprotective and demanding.
• Focusing on change nonconfrontationally.
• Involving other family, community members, and professionals who can support the parent, child, or both.

The recruitment, treatment sessions, and assessments were all done online. Most participants rated the intervention as highly satisfactory on the Client Satisfaction Questionnaire (CSQ-8; mean score, 27.7 out of a maximum of 32). About 60% of the offspring no longer met full criteria for FTL (P < .001; Cohen’s D = 1.76).

All children of the wait-listed parents still met criteria for FTL.

FTL symptoms decreased significantly in the offspring of the intervention group, as seen in both in the Adult Entitled Dependence Scale (AED; P < .05; Cohen’s D = 0.84); and the Adaptive Behaviors Scale (ABS; P < .05; Cohen’s D = 0.70).

There was no change in anxiety as assessed by the Adult Behavior Checklist (ABCL). But Dr. Berger noted that child anxiety is difficult to assess through parental report.

“This population is self-isolating and parents sometimes don’t know what’s going on,” and ABCL measures may not be “as sensitive as we would have liked them to be,” Dr. Berger said.

Parental burden was significantly decreased as measured by the Zarit Burden Interview (ZBI; P < .05; Cohen’s D = 0.70). In addition, family accommodation decreased significantly as determined by the Family Accommodation Scale–Anxiety (FASA; P < .05; Cohen’s D = 0.70).
 

Innovative work

In a comment, Jonathan E. Alpert, MD, PhD, chair, department of psychiatry and behavioral sciences, and professor of psychiatry, neuroscience, and pediatrics, Albert Einstein College of Medicine, New York, described the program as “innovative.”

He noted that the SPACE-FTL approach provides parents with education and skills to reduce behaviors that reinforce their child’s avoidance of independent activities. Such behaviors “may inadvertently contribute to the adult child remaining stuck,” he said.

“Through its involvement of parents and use of a structured approach, SPACE-FTL is a very interesting step toward more evidence-based therapies.”

However, he noted that the number of study participants is still “very low” and further work is needed to better characterize this condition and develop effective therapies.

He noted that parents of adult children with FTL should not be judged or blamed. “They have been living with a worrisome problem for years and are simply doing their best to cope as any of us would do.”

In addition, he noted that some adult children aren’t capable of launching because of a serious mental illness or substance use disorder that needs treatment.

It’s unclear just how many adult children have FTL, as the condition lacks formal, agreed-upon clinical and research criteria and a reliable evidence base for treatment, Dr. Alpert said.

“Whatever the actual numbers of FTL, my anecdotal clinical experience suggests that it is a very common problem which is understudied.”

He added that the definitions of FTL should include cultural context. In some groups, it’s quite normal for adults in their 20s, 30s, or even older to live with their parents, Dr. Alpert said.

Dr. Berger and Dr. Albert report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Erratic sleep patterns, dysregulated transitions between sleep and wake cycles, and excessive sleep during the day are linked to a worsening of schizophrenia symptoms, new research shows.

University of Pittsburgh

The findings also showed that people with schizophrenia spectrum disorders (SSDs) who lived in residential facilities experienced rigid routines, which correlated with a higher degree of negative symptoms.

The rigid routines were problematic for the patients living in residential settings, lead investigator Fabio Ferrarelli, MD, PhD, told this news organization. Dr. Ferrarelli is an associate professor of psychiatry at the University of Pittsburgh.

“Engaging in different activities at different times in activities associated with motivation and social interaction – this helps to ameliorate difficult-to-treat negative symptoms,” he said.

The findings were published online in Molecular Psychiatry.


 

Need to increase activity levels

While there is no shortage of research on sleep disturbances among people with schizophrenia, research focusing specifically on rest-activity rhythm disturbances and their relationships to symptoms of schizophrenia has been limited by small sample sizes or the lack of a control group, the investigators note.

To address this research gap, the investigators recruited 230 patients with SSD from participating residential facilities and communities throughout Italy. The participants included 108 healthy control participants, 54 community-dwelling patients with SSD who were receiving outpatient services, and 68 patients with SSD who were living in residential facilities.

All participants wore an actigraph for 7 consecutive days so that investigators could monitor sleep-wake patterns.

Compared with healthy control participants, both SSD groups had more total sleep time and spent more time resting or being passive (P < .001). In contrast, healthy control participants were much more active.

Part of the explanation for this may be that most of the control participants had jobs or attended school. In addition, the investigators note that many medications used to treat SSD can be highly sedating, causing some patients to sleep up to 15 hours per day.

Among residential participants with SSD, there was a higher level of inter-daily stability and higher daily rest-activity-rest fragmentation than occurred among healthy control participants or community-dwelling patients with SSD (P < .001). There was also a higher level of negative symptoms among residential participants with SSD than among the community-dwelling group with SSD.

When the findings were taken together, Dr. Ferrarelli and his team interpreted them to mean that inter-daily stability could reflect premature aging or neurodegenerative processes in patients with more severe forms of schizophrenia.

Another explanation could be that the rigid routine of the residential facility was making negative symptoms worse, Dr. Ferrarelli said. It is important to add variety into the mix – getting people to engage in different activities at different times of day would likely help residential SSD patients overcome negative symptoms of the disorder.

Although participants were recruited in Italy, Dr. Ferrarelli said he believes the findings are generalizable.
 

Bidirectional relationship?

Commenting on the findings, Matcheri Keshavan, MD, professor of psychiatry at Harvard Medical School in Boston, said the results are consistent with “well-known clinical observations that SSD patients tend to spend more time in bed and have more dysregulated sleep.

Harvard Medical School

“Negative symptoms are also common, especially in residential patients. However, it is difficult to determine causality, as we do not know whether excessive sleepiness and decreased physical activity cause negative symptoms, or vice versa, or whether this is a bidirectional relationship,” Dr. Keshavan said.

He emphasized that physical exercise is known to increase sleep quality for people with mental illness and may also improve negative symptoms. “A useful approach in clinical practice is to increase activity levels, especially physical activities like walking and gardening.”

Dr. Keshavan said he would like to see future research that focuses on whether an intervention such as aerobic exercise would improve sleep quality as well as negative symptoms.

He also said that future research should ideally examine the characteristics of sleep alterations in schizophrenia.

“For example, while sleep duration is increased in schizophrenia, studies suggest that time spent in deep sleep is reduced; sleep spindles, which are important for consolidating memory during sleep, are also reduced. Correcting these deficits may improve negative symptoms and cognitive deficits,” he added.

The study was funded by the Italian Ministry of Health and the National Institute of Mental Health. There were no conflicts of interest.

A version of this article first appeared on Medscape.com.

Erratic sleep patterns, dysregulated transitions between sleep and wake cycles, and excessive sleep during the day are linked to a worsening of schizophrenia symptoms, new research shows.

University of Pittsburgh

The findings also showed that people with schizophrenia spectrum disorders (SSDs) who lived in residential facilities experienced rigid routines, which correlated with a higher degree of negative symptoms.

The rigid routines were problematic for the patients living in residential settings, lead investigator Fabio Ferrarelli, MD, PhD, told this news organization. Dr. Ferrarelli is an associate professor of psychiatry at the University of Pittsburgh.

“Engaging in different activities at different times in activities associated with motivation and social interaction – this helps to ameliorate difficult-to-treat negative symptoms,” he said.

The findings were published online in Molecular Psychiatry.


 

Need to increase activity levels

While there is no shortage of research on sleep disturbances among people with schizophrenia, research focusing specifically on rest-activity rhythm disturbances and their relationships to symptoms of schizophrenia has been limited by small sample sizes or the lack of a control group, the investigators note.

To address this research gap, the investigators recruited 230 patients with SSD from participating residential facilities and communities throughout Italy. The participants included 108 healthy control participants, 54 community-dwelling patients with SSD who were receiving outpatient services, and 68 patients with SSD who were living in residential facilities.

All participants wore an actigraph for 7 consecutive days so that investigators could monitor sleep-wake patterns.

Compared with healthy control participants, both SSD groups had more total sleep time and spent more time resting or being passive (P < .001). In contrast, healthy control participants were much more active.

Part of the explanation for this may be that most of the control participants had jobs or attended school. In addition, the investigators note that many medications used to treat SSD can be highly sedating, causing some patients to sleep up to 15 hours per day.

Among residential participants with SSD, there was a higher level of inter-daily stability and higher daily rest-activity-rest fragmentation than occurred among healthy control participants or community-dwelling patients with SSD (P < .001). There was also a higher level of negative symptoms among residential participants with SSD than among the community-dwelling group with SSD.

When the findings were taken together, Dr. Ferrarelli and his team interpreted them to mean that inter-daily stability could reflect premature aging or neurodegenerative processes in patients with more severe forms of schizophrenia.

Another explanation could be that the rigid routine of the residential facility was making negative symptoms worse, Dr. Ferrarelli said. It is important to add variety into the mix – getting people to engage in different activities at different times of day would likely help residential SSD patients overcome negative symptoms of the disorder.

Although participants were recruited in Italy, Dr. Ferrarelli said he believes the findings are generalizable.
 

Bidirectional relationship?

Commenting on the findings, Matcheri Keshavan, MD, professor of psychiatry at Harvard Medical School in Boston, said the results are consistent with “well-known clinical observations that SSD patients tend to spend more time in bed and have more dysregulated sleep.

Harvard Medical School

“Negative symptoms are also common, especially in residential patients. However, it is difficult to determine causality, as we do not know whether excessive sleepiness and decreased physical activity cause negative symptoms, or vice versa, or whether this is a bidirectional relationship,” Dr. Keshavan said.

He emphasized that physical exercise is known to increase sleep quality for people with mental illness and may also improve negative symptoms. “A useful approach in clinical practice is to increase activity levels, especially physical activities like walking and gardening.”

Dr. Keshavan said he would like to see future research that focuses on whether an intervention such as aerobic exercise would improve sleep quality as well as negative symptoms.

He also said that future research should ideally examine the characteristics of sleep alterations in schizophrenia.

“For example, while sleep duration is increased in schizophrenia, studies suggest that time spent in deep sleep is reduced; sleep spindles, which are important for consolidating memory during sleep, are also reduced. Correcting these deficits may improve negative symptoms and cognitive deficits,” he added.

The study was funded by the Italian Ministry of Health and the National Institute of Mental Health. There were no conflicts of interest.

A version of this article first appeared on Medscape.com.

Erratic sleep patterns, dysregulated transitions between sleep and wake cycles, and excessive sleep during the day are linked to a worsening of schizophrenia symptoms, new research shows.

University of Pittsburgh

The findings also showed that people with schizophrenia spectrum disorders (SSDs) who lived in residential facilities experienced rigid routines, which correlated with a higher degree of negative symptoms.

The rigid routines were problematic for the patients living in residential settings, lead investigator Fabio Ferrarelli, MD, PhD, told this news organization. Dr. Ferrarelli is an associate professor of psychiatry at the University of Pittsburgh.

“Engaging in different activities at different times in activities associated with motivation and social interaction – this helps to ameliorate difficult-to-treat negative symptoms,” he said.

The findings were published online in Molecular Psychiatry.


 

Need to increase activity levels

While there is no shortage of research on sleep disturbances among people with schizophrenia, research focusing specifically on rest-activity rhythm disturbances and their relationships to symptoms of schizophrenia has been limited by small sample sizes or the lack of a control group, the investigators note.

To address this research gap, the investigators recruited 230 patients with SSD from participating residential facilities and communities throughout Italy. The participants included 108 healthy control participants, 54 community-dwelling patients with SSD who were receiving outpatient services, and 68 patients with SSD who were living in residential facilities.

All participants wore an actigraph for 7 consecutive days so that investigators could monitor sleep-wake patterns.

Compared with healthy control participants, both SSD groups had more total sleep time and spent more time resting or being passive (P < .001). In contrast, healthy control participants were much more active.

Part of the explanation for this may be that most of the control participants had jobs or attended school. In addition, the investigators note that many medications used to treat SSD can be highly sedating, causing some patients to sleep up to 15 hours per day.

Among residential participants with SSD, there was a higher level of inter-daily stability and higher daily rest-activity-rest fragmentation than occurred among healthy control participants or community-dwelling patients with SSD (P < .001). There was also a higher level of negative symptoms among residential participants with SSD than among the community-dwelling group with SSD.

When the findings were taken together, Dr. Ferrarelli and his team interpreted them to mean that inter-daily stability could reflect premature aging or neurodegenerative processes in patients with more severe forms of schizophrenia.

Another explanation could be that the rigid routine of the residential facility was making negative symptoms worse, Dr. Ferrarelli said. It is important to add variety into the mix – getting people to engage in different activities at different times of day would likely help residential SSD patients overcome negative symptoms of the disorder.

Although participants were recruited in Italy, Dr. Ferrarelli said he believes the findings are generalizable.
 

Bidirectional relationship?

Commenting on the findings, Matcheri Keshavan, MD, professor of psychiatry at Harvard Medical School in Boston, said the results are consistent with “well-known clinical observations that SSD patients tend to spend more time in bed and have more dysregulated sleep.

Harvard Medical School

“Negative symptoms are also common, especially in residential patients. However, it is difficult to determine causality, as we do not know whether excessive sleepiness and decreased physical activity cause negative symptoms, or vice versa, or whether this is a bidirectional relationship,” Dr. Keshavan said.

He emphasized that physical exercise is known to increase sleep quality for people with mental illness and may also improve negative symptoms. “A useful approach in clinical practice is to increase activity levels, especially physical activities like walking and gardening.”

Dr. Keshavan said he would like to see future research that focuses on whether an intervention such as aerobic exercise would improve sleep quality as well as negative symptoms.

He also said that future research should ideally examine the characteristics of sleep alterations in schizophrenia.

“For example, while sleep duration is increased in schizophrenia, studies suggest that time spent in deep sleep is reduced; sleep spindles, which are important for consolidating memory during sleep, are also reduced. Correcting these deficits may improve negative symptoms and cognitive deficits,” he added.

The study was funded by the Italian Ministry of Health and the National Institute of Mental Health. There were no conflicts of interest.

A version of this article first appeared on Medscape.com.

Taking a swing against arthritis

Osteoarthritis is a tough disease to manage. Exercise helps ease the stiffness and pain of the joints, but at the same time, the disease makes it difficult to do that beneficial exercise. Even a relatively simple activity like jogging can hurt more than it helps. If only there were a low-impact exercise that was incredibly popular among the generally older population who are likely to have arthritis.

We love a good golf study here at LOTME, and a group of Australian and U.K. researchers have provided. Osteoarthritis affects 2 million people in the land down under, making it the most common source of disability there. In that population, only 64% reported their physical health to be good, very good, or excellent. Among the 459 golfers with OA that the study authors surveyed, however, the percentage reporting good health rose to more than 90%.

jacoblund/Getty Images

A similar story emerged when they looked at mental health. Nearly a quarter of nongolfers with OA reported high or very high levels of psychological distress, compared with just 8% of golfers. This pattern of improved physical and mental health remained when the researchers looked at the general, non-OA population.

This isn’t the first time golf’s been connected with improved health, and previous studies have shown golf to reduce the risks of cardiovascular disease, diabetes, and obesity, among other things. Just walking one 18-hole round significantly exceeds the CDC’s recommended 150 minutes of physical activity per week. Go out multiple times a week – leaving the cart and beer at home, American golfers – and you’ll be fit for a lifetime.

The golfers on our staff, however, are still waiting for those mental health benefits to kick in. Because when we’re adding up our scorecard after that string of four double bogeys to end the round, we’re most definitely thinking: “Yes, this sport is reducing my psychological distress. I am having fun right now.”
 

Battle of the sexes’ intestines

There are, we’re sure you’ve noticed, some differences between males and females. Females, for one thing, have longer small intestines than males. Everybody knows that, right? You didn’t know? Really? … Really?

Afif Ramdhasuma/Unsplash

Well, then, we’re guessing you haven’t read “Hidden diversity: Comparative functional morphology of humans and other species” by Erin A. McKenney, PhD, of North Carolina State University, Raleigh, and associates, which just appeared in PeerJ. We couldn’t put it down, even in the shower – a real page-turner/scroller. (It’s a great way to clean a phone, for those who also like to scroll, text, or talk on the toilet.)

The researchers got out their rulers, calipers, and string and took many measurements of the digestive systems of 45 human cadavers (21 female and 24 male), which were compared with data from 10 rats, 10 pigs, and 10 bullfrogs, which had been collected (the measurements, not the animals) by undergraduate students enrolled in a comparative anatomy laboratory course at the university.

There was little intestinal-length variation among the four-legged subjects, but when it comes to humans, females have “consistently and significantly longer small intestines than males,” the investigators noted.

The women’s small intestines, almost 14 feet long on average, were about a foot longer than the men’s, which suggests that women are better able to extract nutrients from food and “supports the canalization hypothesis, which posits that women are better able to survive during periods of stress,” coauthor Amanda Hale said in a written statement from the school. The way to a man’s heart may be through his stomach, but the way to a woman’s heart is through her duodenum, it seems.

Fascinating stuff, to be sure, but the thing that really caught our eye in the PeerJ article was the authors’ suggestion “that organs behave independently of one another, both within and across species.” Organs behaving independently? A somewhat ominous concept, no doubt, but it does explain a lot of the sounds we hear coming from our guts, which can get pretty frightening, especially on chili night.
 

Dog walking is dangerous business

Yes, you did read that right. A lot of strange things can send you to the emergency department. Go ahead and add dog walking onto that list.

Investigators from Johns Hopkins University estimate that over 422,000 adults presented to U.S. emergency departments with leash-dependent dog walking-related injuries between 2001 and 2020.

freestocks/Unsplash

With almost 53% of U.S. households owning at least one dog in 2021-2022 in the wake of the COVID pet boom, this kind of occurrence is becoming more common than you think. The annual number of dog-walking injuries more than quadrupled from 7,300 to 32,000 over the course of the study, and the researchers link that spike to the promotion of dog walking for fitness, along with the boost of ownership itself.

The most common injuries listed in the National Electronic Injury Surveillance System database were finger fracture, traumatic brain injury, and shoulder sprain or strain. These mostly involved falls from being pulled, tripped, or tangled up in the leash while walking. For those aged 65 years and older, traumatic brain injury and hip fracture were the most common.

Women were 50% more likely to sustain a fracture than were men, and dog owners aged 65 and older were three times as likely to fall, twice as likely to get a fracture, and 60% more likely to have brain injury than were younger people. Now, that’s not to say younger people don’t also get hurt. After all, dogs aren’t ageists. The researchers have that data but it’s coming out later.

Meanwhile, the pitfalls involved with just trying to get our daily steps in while letting Muffin do her business have us on the lookout for random squirrels.

Taking a swing against arthritis

Osteoarthritis is a tough disease to manage. Exercise helps ease the stiffness and pain of the joints, but at the same time, the disease makes it difficult to do that beneficial exercise. Even a relatively simple activity like jogging can hurt more than it helps. If only there were a low-impact exercise that was incredibly popular among the generally older population who are likely to have arthritis.

We love a good golf study here at LOTME, and a group of Australian and U.K. researchers have provided. Osteoarthritis affects 2 million people in the land down under, making it the most common source of disability there. In that population, only 64% reported their physical health to be good, very good, or excellent. Among the 459 golfers with OA that the study authors surveyed, however, the percentage reporting good health rose to more than 90%.

jacoblund/Getty Images

A similar story emerged when they looked at mental health. Nearly a quarter of nongolfers with OA reported high or very high levels of psychological distress, compared with just 8% of golfers. This pattern of improved physical and mental health remained when the researchers looked at the general, non-OA population.

This isn’t the first time golf’s been connected with improved health, and previous studies have shown golf to reduce the risks of cardiovascular disease, diabetes, and obesity, among other things. Just walking one 18-hole round significantly exceeds the CDC’s recommended 150 minutes of physical activity per week. Go out multiple times a week – leaving the cart and beer at home, American golfers – and you’ll be fit for a lifetime.

The golfers on our staff, however, are still waiting for those mental health benefits to kick in. Because when we’re adding up our scorecard after that string of four double bogeys to end the round, we’re most definitely thinking: “Yes, this sport is reducing my psychological distress. I am having fun right now.”
 

Battle of the sexes’ intestines

There are, we’re sure you’ve noticed, some differences between males and females. Females, for one thing, have longer small intestines than males. Everybody knows that, right? You didn’t know? Really? … Really?

Afif Ramdhasuma/Unsplash

Well, then, we’re guessing you haven’t read “Hidden diversity: Comparative functional morphology of humans and other species” by Erin A. McKenney, PhD, of North Carolina State University, Raleigh, and associates, which just appeared in PeerJ. We couldn’t put it down, even in the shower – a real page-turner/scroller. (It’s a great way to clean a phone, for those who also like to scroll, text, or talk on the toilet.)

The researchers got out their rulers, calipers, and string and took many measurements of the digestive systems of 45 human cadavers (21 female and 24 male), which were compared with data from 10 rats, 10 pigs, and 10 bullfrogs, which had been collected (the measurements, not the animals) by undergraduate students enrolled in a comparative anatomy laboratory course at the university.

There was little intestinal-length variation among the four-legged subjects, but when it comes to humans, females have “consistently and significantly longer small intestines than males,” the investigators noted.

The women’s small intestines, almost 14 feet long on average, were about a foot longer than the men’s, which suggests that women are better able to extract nutrients from food and “supports the canalization hypothesis, which posits that women are better able to survive during periods of stress,” coauthor Amanda Hale said in a written statement from the school. The way to a man’s heart may be through his stomach, but the way to a woman’s heart is through her duodenum, it seems.

Fascinating stuff, to be sure, but the thing that really caught our eye in the PeerJ article was the authors’ suggestion “that organs behave independently of one another, both within and across species.” Organs behaving independently? A somewhat ominous concept, no doubt, but it does explain a lot of the sounds we hear coming from our guts, which can get pretty frightening, especially on chili night.
 

Dog walking is dangerous business

Yes, you did read that right. A lot of strange things can send you to the emergency department. Go ahead and add dog walking onto that list.

Investigators from Johns Hopkins University estimate that over 422,000 adults presented to U.S. emergency departments with leash-dependent dog walking-related injuries between 2001 and 2020.

freestocks/Unsplash

With almost 53% of U.S. households owning at least one dog in 2021-2022 in the wake of the COVID pet boom, this kind of occurrence is becoming more common than you think. The annual number of dog-walking injuries more than quadrupled from 7,300 to 32,000 over the course of the study, and the researchers link that spike to the promotion of dog walking for fitness, along with the boost of ownership itself.

The most common injuries listed in the National Electronic Injury Surveillance System database were finger fracture, traumatic brain injury, and shoulder sprain or strain. These mostly involved falls from being pulled, tripped, or tangled up in the leash while walking. For those aged 65 years and older, traumatic brain injury and hip fracture were the most common.

Women were 50% more likely to sustain a fracture than were men, and dog owners aged 65 and older were three times as likely to fall, twice as likely to get a fracture, and 60% more likely to have brain injury than were younger people. Now, that’s not to say younger people don’t also get hurt. After all, dogs aren’t ageists. The researchers have that data but it’s coming out later.

Meanwhile, the pitfalls involved with just trying to get our daily steps in while letting Muffin do her business have us on the lookout for random squirrels.

Taking a swing against arthritis

Osteoarthritis is a tough disease to manage. Exercise helps ease the stiffness and pain of the joints, but at the same time, the disease makes it difficult to do that beneficial exercise. Even a relatively simple activity like jogging can hurt more than it helps. If only there were a low-impact exercise that was incredibly popular among the generally older population who are likely to have arthritis.

We love a good golf study here at LOTME, and a group of Australian and U.K. researchers have provided. Osteoarthritis affects 2 million people in the land down under, making it the most common source of disability there. In that population, only 64% reported their physical health to be good, very good, or excellent. Among the 459 golfers with OA that the study authors surveyed, however, the percentage reporting good health rose to more than 90%.

jacoblund/Getty Images

A similar story emerged when they looked at mental health. Nearly a quarter of nongolfers with OA reported high or very high levels of psychological distress, compared with just 8% of golfers. This pattern of improved physical and mental health remained when the researchers looked at the general, non-OA population.

This isn’t the first time golf’s been connected with improved health, and previous studies have shown golf to reduce the risks of cardiovascular disease, diabetes, and obesity, among other things. Just walking one 18-hole round significantly exceeds the CDC’s recommended 150 minutes of physical activity per week. Go out multiple times a week – leaving the cart and beer at home, American golfers – and you’ll be fit for a lifetime.

The golfers on our staff, however, are still waiting for those mental health benefits to kick in. Because when we’re adding up our scorecard after that string of four double bogeys to end the round, we’re most definitely thinking: “Yes, this sport is reducing my psychological distress. I am having fun right now.”
 

Battle of the sexes’ intestines

There are, we’re sure you’ve noticed, some differences between males and females. Females, for one thing, have longer small intestines than males. Everybody knows that, right? You didn’t know? Really? … Really?

Afif Ramdhasuma/Unsplash

Well, then, we’re guessing you haven’t read “Hidden diversity: Comparative functional morphology of humans and other species” by Erin A. McKenney, PhD, of North Carolina State University, Raleigh, and associates, which just appeared in PeerJ. We couldn’t put it down, even in the shower – a real page-turner/scroller. (It’s a great way to clean a phone, for those who also like to scroll, text, or talk on the toilet.)

The researchers got out their rulers, calipers, and string and took many measurements of the digestive systems of 45 human cadavers (21 female and 24 male), which were compared with data from 10 rats, 10 pigs, and 10 bullfrogs, which had been collected (the measurements, not the animals) by undergraduate students enrolled in a comparative anatomy laboratory course at the university.

There was little intestinal-length variation among the four-legged subjects, but when it comes to humans, females have “consistently and significantly longer small intestines than males,” the investigators noted.

The women’s small intestines, almost 14 feet long on average, were about a foot longer than the men’s, which suggests that women are better able to extract nutrients from food and “supports the canalization hypothesis, which posits that women are better able to survive during periods of stress,” coauthor Amanda Hale said in a written statement from the school. The way to a man’s heart may be through his stomach, but the way to a woman’s heart is through her duodenum, it seems.

Fascinating stuff, to be sure, but the thing that really caught our eye in the PeerJ article was the authors’ suggestion “that organs behave independently of one another, both within and across species.” Organs behaving independently? A somewhat ominous concept, no doubt, but it does explain a lot of the sounds we hear coming from our guts, which can get pretty frightening, especially on chili night.
 

Dog walking is dangerous business

Yes, you did read that right. A lot of strange things can send you to the emergency department. Go ahead and add dog walking onto that list.

Investigators from Johns Hopkins University estimate that over 422,000 adults presented to U.S. emergency departments with leash-dependent dog walking-related injuries between 2001 and 2020.

freestocks/Unsplash

With almost 53% of U.S. households owning at least one dog in 2021-2022 in the wake of the COVID pet boom, this kind of occurrence is becoming more common than you think. The annual number of dog-walking injuries more than quadrupled from 7,300 to 32,000 over the course of the study, and the researchers link that spike to the promotion of dog walking for fitness, along with the boost of ownership itself.

The most common injuries listed in the National Electronic Injury Surveillance System database were finger fracture, traumatic brain injury, and shoulder sprain or strain. These mostly involved falls from being pulled, tripped, or tangled up in the leash while walking. For those aged 65 years and older, traumatic brain injury and hip fracture were the most common.

Women were 50% more likely to sustain a fracture than were men, and dog owners aged 65 and older were three times as likely to fall, twice as likely to get a fracture, and 60% more likely to have brain injury than were younger people. Now, that’s not to say younger people don’t also get hurt. After all, dogs aren’t ageists. The researchers have that data but it’s coming out later.

Meanwhile, the pitfalls involved with just trying to get our daily steps in while letting Muffin do her business have us on the lookout for random squirrels.

The vast majority of melatonin gummies sold in the United States may contain up to 347% more melatonin than is listed on the label, and some products also contain cannabidiol. New data may explain the recent massive jump in pediatric hospitalizations.
 

Thenvestigators found that consuming some products as directed could expose consumers, including children, to doses that are 40-130 times greater than what’s recommended.

“The results were quite shocking,” lead researcher Pieter Cohen, MD, with Harvard Medical School, Boston, and Cambridge Health Alliance, Somerville, Mass., said in an interview.

“Melatonin gummies contained up to 347% more melatonin than what was listed on the label, and some products also contained cannabidiol; in one brand of melatonin gummies, there was zero melatonin, just CBD,” Dr. Cohen said.

The study was published online in JAMA.
 

530% jump in pediatric hospitalizations

Melatonin products are not approved by the Food and Drug Administration but are sold over the counter or online.

Previous research from JAMA has shown the use of melatonin has increased over the past 2 decades among people of all ages.

With increased use has come a spike in reports of melatonin overdose, calls to poison control centers, and related ED visits for children.

Federal data show the number of U.S. children who unintentionally ingested melatonin supplements jumped 530% from 2012 to 2021. More than 4,000 of the reported ingestions led to a hospital stay; 287 children required intensive care, and two children died.

It was unclear why melatonin supplements were causing these harms, which led Dr. Cohen’s team to analyze 25 unique brands of “melatonin” gummies purchased online.

One product didn’t contain any melatonin but did contain 31.3 mg of CBD.

In the remaining products, the quantity of melatonin ranged from 1.3 mg to 13.1 mg per serving. The actual quantity of melatonin ranged from 74% to 347% of the labeled quantity, the researchers found.

They note that for a young adult who takes as little as 0.1-0.3 mg of melatonin, plasma concentrations can increase into the normal night-time range.

Of the 25 products (88%) analyzed, 22 were inaccurately labeled, and only 3 (12%) contained a quantity of melatonin that was within 10% (plus or minus) of the declared quantity.

Five products listed CBD as an ingredient. The listed quantity ranged from 10.6 mg to 31.3 mg per serving, although the actual quantity of CBD ranged from 104% to 118% of the labeled quantity.
 

Inquire about use in kids

A limitation of the study is that only one sample of each brand was analyzed, and only gummies were analyzed. It is not known whether the results are generalizable to melatonin products sold as tablets and capsules in the United States or whether the quantity of melatonin within an individual brand may vary from batch to batch.

A recent study from Canada showed similar results. In an analysis of 16 Canadian melatonin brands, the actual dose of melatonin ranged from 17% to 478% of the declared quantity.

It’s estimated that more than 1% of all U.S. children use melatonin supplements, most commonly for sleep, stress, and relaxation.

“Given new research as to the excessive quantities of melatonin in gummies, caution should be used if considering their use,” said Dr. Cohen.

“It’s important to inquire about melatonin use when caring for children, particularly when parents express concerns about their child’s sleep,” he added.

The American Academy of Sleep Medicine recently issued a health advisory encouraging parents to talk to a health care professional before giving melatonin or any supplement to children.
 

Children don’t need melatonin

Commenting on the study, Michael Breus, PhD, clinical psychologist and founder of TheSleepDoctor.com, agreed that analyzing only one sample of each brand is a key limitation “because supplements are made in batches, and gummies in particular are difficult to distribute the active ingredient evenly.

“But even with that being said, 88% of them were labeled incorrectly, so even if there were a few single-sample issues, I kind of doubt its all of them,” Dr. Breus said.

“Kids as a general rule do not need melatonin. Their brains make almost four times the necessary amount already. If you start giving kids pills to help them sleep, then they start to have a pill problem, causing another issue,” Dr. Breus added.

“Most children’s falling asleep and staying sleep issues can be treated with behavioral measures like cognitive-behavioral therapy for insomnia,” he said.

The study had no specific funding. Dr. Cohen has received research support from Consumers Union and PEW Charitable Trusts and royalties from UptoDate. Dr. Breus disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The vast majority of melatonin gummies sold in the United States may contain up to 347% more melatonin than is listed on the label, and some products also contain cannabidiol. New data may explain the recent massive jump in pediatric hospitalizations.
 

Thenvestigators found that consuming some products as directed could expose consumers, including children, to doses that are 40-130 times greater than what’s recommended.

“The results were quite shocking,” lead researcher Pieter Cohen, MD, with Harvard Medical School, Boston, and Cambridge Health Alliance, Somerville, Mass., said in an interview.

“Melatonin gummies contained up to 347% more melatonin than what was listed on the label, and some products also contained cannabidiol; in one brand of melatonin gummies, there was zero melatonin, just CBD,” Dr. Cohen said.

The study was published online in JAMA.
 

530% jump in pediatric hospitalizations

Melatonin products are not approved by the Food and Drug Administration but are sold over the counter or online.

Previous research from JAMA has shown the use of melatonin has increased over the past 2 decades among people of all ages.

With increased use has come a spike in reports of melatonin overdose, calls to poison control centers, and related ED visits for children.

Federal data show the number of U.S. children who unintentionally ingested melatonin supplements jumped 530% from 2012 to 2021. More than 4,000 of the reported ingestions led to a hospital stay; 287 children required intensive care, and two children died.

It was unclear why melatonin supplements were causing these harms, which led Dr. Cohen’s team to analyze 25 unique brands of “melatonin” gummies purchased online.

One product didn’t contain any melatonin but did contain 31.3 mg of CBD.

In the remaining products, the quantity of melatonin ranged from 1.3 mg to 13.1 mg per serving. The actual quantity of melatonin ranged from 74% to 347% of the labeled quantity, the researchers found.

They note that for a young adult who takes as little as 0.1-0.3 mg of melatonin, plasma concentrations can increase into the normal night-time range.

Of the 25 products (88%) analyzed, 22 were inaccurately labeled, and only 3 (12%) contained a quantity of melatonin that was within 10% (plus or minus) of the declared quantity.

Five products listed CBD as an ingredient. The listed quantity ranged from 10.6 mg to 31.3 mg per serving, although the actual quantity of CBD ranged from 104% to 118% of the labeled quantity.
 

Inquire about use in kids

A limitation of the study is that only one sample of each brand was analyzed, and only gummies were analyzed. It is not known whether the results are generalizable to melatonin products sold as tablets and capsules in the United States or whether the quantity of melatonin within an individual brand may vary from batch to batch.

A recent study from Canada showed similar results. In an analysis of 16 Canadian melatonin brands, the actual dose of melatonin ranged from 17% to 478% of the declared quantity.

It’s estimated that more than 1% of all U.S. children use melatonin supplements, most commonly for sleep, stress, and relaxation.

“Given new research as to the excessive quantities of melatonin in gummies, caution should be used if considering their use,” said Dr. Cohen.

“It’s important to inquire about melatonin use when caring for children, particularly when parents express concerns about their child’s sleep,” he added.

The American Academy of Sleep Medicine recently issued a health advisory encouraging parents to talk to a health care professional before giving melatonin or any supplement to children.
 

Children don’t need melatonin

Commenting on the study, Michael Breus, PhD, clinical psychologist and founder of TheSleepDoctor.com, agreed that analyzing only one sample of each brand is a key limitation “because supplements are made in batches, and gummies in particular are difficult to distribute the active ingredient evenly.

“But even with that being said, 88% of them were labeled incorrectly, so even if there were a few single-sample issues, I kind of doubt its all of them,” Dr. Breus said.

“Kids as a general rule do not need melatonin. Their brains make almost four times the necessary amount already. If you start giving kids pills to help them sleep, then they start to have a pill problem, causing another issue,” Dr. Breus added.

“Most children’s falling asleep and staying sleep issues can be treated with behavioral measures like cognitive-behavioral therapy for insomnia,” he said.

The study had no specific funding. Dr. Cohen has received research support from Consumers Union and PEW Charitable Trusts and royalties from UptoDate. Dr. Breus disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The vast majority of melatonin gummies sold in the United States may contain up to 347% more melatonin than is listed on the label, and some products also contain cannabidiol. New data may explain the recent massive jump in pediatric hospitalizations.
 

Thenvestigators found that consuming some products as directed could expose consumers, including children, to doses that are 40-130 times greater than what’s recommended.

“The results were quite shocking,” lead researcher Pieter Cohen, MD, with Harvard Medical School, Boston, and Cambridge Health Alliance, Somerville, Mass., said in an interview.

“Melatonin gummies contained up to 347% more melatonin than what was listed on the label, and some products also contained cannabidiol; in one brand of melatonin gummies, there was zero melatonin, just CBD,” Dr. Cohen said.

The study was published online in JAMA.
 

530% jump in pediatric hospitalizations

Melatonin products are not approved by the Food and Drug Administration but are sold over the counter or online.

Previous research from JAMA has shown the use of melatonin has increased over the past 2 decades among people of all ages.

With increased use has come a spike in reports of melatonin overdose, calls to poison control centers, and related ED visits for children.

Federal data show the number of U.S. children who unintentionally ingested melatonin supplements jumped 530% from 2012 to 2021. More than 4,000 of the reported ingestions led to a hospital stay; 287 children required intensive care, and two children died.

It was unclear why melatonin supplements were causing these harms, which led Dr. Cohen’s team to analyze 25 unique brands of “melatonin” gummies purchased online.

One product didn’t contain any melatonin but did contain 31.3 mg of CBD.

In the remaining products, the quantity of melatonin ranged from 1.3 mg to 13.1 mg per serving. The actual quantity of melatonin ranged from 74% to 347% of the labeled quantity, the researchers found.

They note that for a young adult who takes as little as 0.1-0.3 mg of melatonin, plasma concentrations can increase into the normal night-time range.

Of the 25 products (88%) analyzed, 22 were inaccurately labeled, and only 3 (12%) contained a quantity of melatonin that was within 10% (plus or minus) of the declared quantity.

Five products listed CBD as an ingredient. The listed quantity ranged from 10.6 mg to 31.3 mg per serving, although the actual quantity of CBD ranged from 104% to 118% of the labeled quantity.
 

Inquire about use in kids

A limitation of the study is that only one sample of each brand was analyzed, and only gummies were analyzed. It is not known whether the results are generalizable to melatonin products sold as tablets and capsules in the United States or whether the quantity of melatonin within an individual brand may vary from batch to batch.

A recent study from Canada showed similar results. In an analysis of 16 Canadian melatonin brands, the actual dose of melatonin ranged from 17% to 478% of the declared quantity.

It’s estimated that more than 1% of all U.S. children use melatonin supplements, most commonly for sleep, stress, and relaxation.

“Given new research as to the excessive quantities of melatonin in gummies, caution should be used if considering their use,” said Dr. Cohen.

“It’s important to inquire about melatonin use when caring for children, particularly when parents express concerns about their child’s sleep,” he added.

The American Academy of Sleep Medicine recently issued a health advisory encouraging parents to talk to a health care professional before giving melatonin or any supplement to children.
 

Children don’t need melatonin

Commenting on the study, Michael Breus, PhD, clinical psychologist and founder of TheSleepDoctor.com, agreed that analyzing only one sample of each brand is a key limitation “because supplements are made in batches, and gummies in particular are difficult to distribute the active ingredient evenly.

“But even with that being said, 88% of them were labeled incorrectly, so even if there were a few single-sample issues, I kind of doubt its all of them,” Dr. Breus said.

“Kids as a general rule do not need melatonin. Their brains make almost four times the necessary amount already. If you start giving kids pills to help them sleep, then they start to have a pill problem, causing another issue,” Dr. Breus added.

“Most children’s falling asleep and staying sleep issues can be treated with behavioral measures like cognitive-behavioral therapy for insomnia,” he said.

The study had no specific funding. Dr. Cohen has received research support from Consumers Union and PEW Charitable Trusts and royalties from UptoDate. Dr. Breus disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Narcissists appear to be everywhere. A few minutes on the Internet shows the dangers of narcissistic romantic partners, friends, and employers. Identifying and limiting the reach of their manipulative and self-centered endeavors is cast as both urgent and necessary. The destructive powers of the narcissistic mother are viewed as especially in need of remedy, and any bookstore can reveal the risks they pose: “Will I Ever Be Good Enough? Healing the Daughters of Narcissistic Mothers;” “You’re Not Crazy – It’s Your Mother: Freedom for Daughters of Narcissistic Mothers;” “Healing for Daughters of Narcissistic Mothers: A Practical Guide on How to Recover from the Childhood Trauma of Toxic Relationship with Your Mother and How You Can Handle Her Abuse Now As An Adult” – to name just a few (there are more).

As a psychologist specializing in parental estrangement, I (Dr. Coleman) regularly see letters from adult children explaining their discovery-through-therapy that their mother is a narcissist. The proclamation often comes when the therapist has never met the mother. Typically, the discovery is presented as a justification for ending the relationship with the parent. While these mothers could rightly be accused of being anxious, over-involved, depressed, or hurt by the lack of gratitude or reciprocity, the vast majority are not narcissists.

Blaming mothers has a long reach. Mothers have been blamed for causing schizophrenia, autism, homosexuality, and effeminacy in men. While we used to call people selfish and “controlling,” narcissism is a more consequential label as it confers diagnostic validity from the mental health profession. Worse, it suggests an individual beyond reach, where the only answer is distance, containment, or estrangement.

The rise of the narcissistic mother comes during a time when, for the past 4 decades, the average working mother spends more time with her children than stay-at-home moms did in the supposed halcyon days of the 1960s’ middle class, before “parenting” was a common term. A variety of economists and sociologists observed that an increase in parental effort became necessary to launch children into adulthood given the retreat of governmental and corporate support for parents that began in the 1980s.

“The financial and emotional burden on families has grown in ways that were almost unimaginable just a half-century ago,” writes the University of Pennsylvania sociologist Frank Furstenberg in “On a New Schedule: Transitions to Adulthood and Family Change.” In addition, a view of children as vulnerable and in need of intense parental investment gained momentum over the course of the 20th century and has continued unabated into the present. As a result, an environment of intense maternal preoccupation, worry, guilt, and involvement with children’s grades, safety, health, and emotional states – referred to as “helicopter” and “tiger” mothering – grew into the norm across the classes.

While prior generations of parents could, by today’s standards, be viewed as being insufficiently involved, today’s parents have become “over-involved” – aided by the ability of parents to be in constant contact with their adult children through technology. While this shift to a more hands-on, more conscientious parenting has been a boon to parent–adult child relationships in the main, the downside has meant, for some, too much of a good thing. From that perspective, pathologizing a mother’s involvement or her expressions of hurt for that child’s lack of availability provides a shield against the child’s feelings of guilt or obligation.

Diagnoses can serve a social purpose: They can allow individuals to use the authority of our profession to decide who to be close to and who to let go. They can provide insulation against feelings of obligation or guilt. They create a way to label behavior as dysfunctional that in other eras or cultures would be considered normal, even valued. To that extent, diagnoses don’t occur in a cultural void. They are inextricably tied to larger ideals, be they individualistic – as exists in the United States – or collectivist, as exists in many other parts of the world.

While we have decided what parents owe our children, it is unclear what parents might ask in return. To that end, mothers who want more interest, availability, or gratitude today are vulnerable to being cast as selfish, uncaring, needy, and controlling. They can now be viewed as failing in their task of selfless devotion. Their desires for closeness or repair can be regarded as incompatible with the quest for the adult child’s self-fulfillment and identity; her identification with her children too great a barrier to their individuation.

There may well be good reasons to estrange family members for their intolerable behaviors, especially ones who have threatened personal safety. Yet, while there are plenty of problematic parents, few meet the diagnostic criteria of narcissistic personality disorder. More important, such labels can discourage a discussion of boundaries that both the parents and the adult children might find acceptable – which sometimes means asking family members to tolerate behavior or individuals not to their liking.

Diagnoses carry enormous social weight and can facilitate estrangements or negativity to mothers that are far more workable than our patients’ characterization of them might lead them or us to believe. Wrongly labeling mothers as narcissists greatly oversimplifies their lives and struggles; it devalues their years of love and dedication, however flawed; and it weakens the fabric of connection that could otherwise exist. Rather than provide a path toward compassion or understanding, “narcissistic mother” just becomes the latest form of mommy shaming.

Dr. Coleman is a clinical psychologist and author of “Rules of Estrangement: Why Adult Children Cut Ties and How to Heal the Conflict” (New York: Penguin Random House, 2021). Dr. Miller is a coauthor of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University Press, 2016). She has a private practice and is an assistant professor of psychiatry and behavioral sciences at Johns Hopkins University in Baltimore.

Narcissists appear to be everywhere. A few minutes on the Internet shows the dangers of narcissistic romantic partners, friends, and employers. Identifying and limiting the reach of their manipulative and self-centered endeavors is cast as both urgent and necessary. The destructive powers of the narcissistic mother are viewed as especially in need of remedy, and any bookstore can reveal the risks they pose: “Will I Ever Be Good Enough? Healing the Daughters of Narcissistic Mothers;” “You’re Not Crazy – It’s Your Mother: Freedom for Daughters of Narcissistic Mothers;” “Healing for Daughters of Narcissistic Mothers: A Practical Guide on How to Recover from the Childhood Trauma of Toxic Relationship with Your Mother and How You Can Handle Her Abuse Now As An Adult” – to name just a few (there are more).

As a psychologist specializing in parental estrangement, I (Dr. Coleman) regularly see letters from adult children explaining their discovery-through-therapy that their mother is a narcissist. The proclamation often comes when the therapist has never met the mother. Typically, the discovery is presented as a justification for ending the relationship with the parent. While these mothers could rightly be accused of being anxious, over-involved, depressed, or hurt by the lack of gratitude or reciprocity, the vast majority are not narcissists.

Blaming mothers has a long reach. Mothers have been blamed for causing schizophrenia, autism, homosexuality, and effeminacy in men. While we used to call people selfish and “controlling,” narcissism is a more consequential label as it confers diagnostic validity from the mental health profession. Worse, it suggests an individual beyond reach, where the only answer is distance, containment, or estrangement.

The rise of the narcissistic mother comes during a time when, for the past 4 decades, the average working mother spends more time with her children than stay-at-home moms did in the supposed halcyon days of the 1960s’ middle class, before “parenting” was a common term. A variety of economists and sociologists observed that an increase in parental effort became necessary to launch children into adulthood given the retreat of governmental and corporate support for parents that began in the 1980s.

“The financial and emotional burden on families has grown in ways that were almost unimaginable just a half-century ago,” writes the University of Pennsylvania sociologist Frank Furstenberg in “On a New Schedule: Transitions to Adulthood and Family Change.” In addition, a view of children as vulnerable and in need of intense parental investment gained momentum over the course of the 20th century and has continued unabated into the present. As a result, an environment of intense maternal preoccupation, worry, guilt, and involvement with children’s grades, safety, health, and emotional states – referred to as “helicopter” and “tiger” mothering – grew into the norm across the classes.

While prior generations of parents could, by today’s standards, be viewed as being insufficiently involved, today’s parents have become “over-involved” – aided by the ability of parents to be in constant contact with their adult children through technology. While this shift to a more hands-on, more conscientious parenting has been a boon to parent–adult child relationships in the main, the downside has meant, for some, too much of a good thing. From that perspective, pathologizing a mother’s involvement or her expressions of hurt for that child’s lack of availability provides a shield against the child’s feelings of guilt or obligation.

Diagnoses can serve a social purpose: They can allow individuals to use the authority of our profession to decide who to be close to and who to let go. They can provide insulation against feelings of obligation or guilt. They create a way to label behavior as dysfunctional that in other eras or cultures would be considered normal, even valued. To that extent, diagnoses don’t occur in a cultural void. They are inextricably tied to larger ideals, be they individualistic – as exists in the United States – or collectivist, as exists in many other parts of the world.

While we have decided what parents owe our children, it is unclear what parents might ask in return. To that end, mothers who want more interest, availability, or gratitude today are vulnerable to being cast as selfish, uncaring, needy, and controlling. They can now be viewed as failing in their task of selfless devotion. Their desires for closeness or repair can be regarded as incompatible with the quest for the adult child’s self-fulfillment and identity; her identification with her children too great a barrier to their individuation.

There may well be good reasons to estrange family members for their intolerable behaviors, especially ones who have threatened personal safety. Yet, while there are plenty of problematic parents, few meet the diagnostic criteria of narcissistic personality disorder. More important, such labels can discourage a discussion of boundaries that both the parents and the adult children might find acceptable – which sometimes means asking family members to tolerate behavior or individuals not to their liking.

Diagnoses carry enormous social weight and can facilitate estrangements or negativity to mothers that are far more workable than our patients’ characterization of them might lead them or us to believe. Wrongly labeling mothers as narcissists greatly oversimplifies their lives and struggles; it devalues their years of love and dedication, however flawed; and it weakens the fabric of connection that could otherwise exist. Rather than provide a path toward compassion or understanding, “narcissistic mother” just becomes the latest form of mommy shaming.

Dr. Coleman is a clinical psychologist and author of “Rules of Estrangement: Why Adult Children Cut Ties and How to Heal the Conflict” (New York: Penguin Random House, 2021). Dr. Miller is a coauthor of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University Press, 2016). She has a private practice and is an assistant professor of psychiatry and behavioral sciences at Johns Hopkins University in Baltimore.

Narcissists appear to be everywhere. A few minutes on the Internet shows the dangers of narcissistic romantic partners, friends, and employers. Identifying and limiting the reach of their manipulative and self-centered endeavors is cast as both urgent and necessary. The destructive powers of the narcissistic mother are viewed as especially in need of remedy, and any bookstore can reveal the risks they pose: “Will I Ever Be Good Enough? Healing the Daughters of Narcissistic Mothers;” “You’re Not Crazy – It’s Your Mother: Freedom for Daughters of Narcissistic Mothers;” “Healing for Daughters of Narcissistic Mothers: A Practical Guide on How to Recover from the Childhood Trauma of Toxic Relationship with Your Mother and How You Can Handle Her Abuse Now As An Adult” – to name just a few (there are more).

As a psychologist specializing in parental estrangement, I (Dr. Coleman) regularly see letters from adult children explaining their discovery-through-therapy that their mother is a narcissist. The proclamation often comes when the therapist has never met the mother. Typically, the discovery is presented as a justification for ending the relationship with the parent. While these mothers could rightly be accused of being anxious, over-involved, depressed, or hurt by the lack of gratitude or reciprocity, the vast majority are not narcissists.

Blaming mothers has a long reach. Mothers have been blamed for causing schizophrenia, autism, homosexuality, and effeminacy in men. While we used to call people selfish and “controlling,” narcissism is a more consequential label as it confers diagnostic validity from the mental health profession. Worse, it suggests an individual beyond reach, where the only answer is distance, containment, or estrangement.

The rise of the narcissistic mother comes during a time when, for the past 4 decades, the average working mother spends more time with her children than stay-at-home moms did in the supposed halcyon days of the 1960s’ middle class, before “parenting” was a common term. A variety of economists and sociologists observed that an increase in parental effort became necessary to launch children into adulthood given the retreat of governmental and corporate support for parents that began in the 1980s.

“The financial and emotional burden on families has grown in ways that were almost unimaginable just a half-century ago,” writes the University of Pennsylvania sociologist Frank Furstenberg in “On a New Schedule: Transitions to Adulthood and Family Change.” In addition, a view of children as vulnerable and in need of intense parental investment gained momentum over the course of the 20th century and has continued unabated into the present. As a result, an environment of intense maternal preoccupation, worry, guilt, and involvement with children’s grades, safety, health, and emotional states – referred to as “helicopter” and “tiger” mothering – grew into the norm across the classes.

While prior generations of parents could, by today’s standards, be viewed as being insufficiently involved, today’s parents have become “over-involved” – aided by the ability of parents to be in constant contact with their adult children through technology. While this shift to a more hands-on, more conscientious parenting has been a boon to parent–adult child relationships in the main, the downside has meant, for some, too much of a good thing. From that perspective, pathologizing a mother’s involvement or her expressions of hurt for that child’s lack of availability provides a shield against the child’s feelings of guilt or obligation.

Diagnoses can serve a social purpose: They can allow individuals to use the authority of our profession to decide who to be close to and who to let go. They can provide insulation against feelings of obligation or guilt. They create a way to label behavior as dysfunctional that in other eras or cultures would be considered normal, even valued. To that extent, diagnoses don’t occur in a cultural void. They are inextricably tied to larger ideals, be they individualistic – as exists in the United States – or collectivist, as exists in many other parts of the world.

While we have decided what parents owe our children, it is unclear what parents might ask in return. To that end, mothers who want more interest, availability, or gratitude today are vulnerable to being cast as selfish, uncaring, needy, and controlling. They can now be viewed as failing in their task of selfless devotion. Their desires for closeness or repair can be regarded as incompatible with the quest for the adult child’s self-fulfillment and identity; her identification with her children too great a barrier to their individuation.

There may well be good reasons to estrange family members for their intolerable behaviors, especially ones who have threatened personal safety. Yet, while there are plenty of problematic parents, few meet the diagnostic criteria of narcissistic personality disorder. More important, such labels can discourage a discussion of boundaries that both the parents and the adult children might find acceptable – which sometimes means asking family members to tolerate behavior or individuals not to their liking.

Diagnoses carry enormous social weight and can facilitate estrangements or negativity to mothers that are far more workable than our patients’ characterization of them might lead them or us to believe. Wrongly labeling mothers as narcissists greatly oversimplifies their lives and struggles; it devalues their years of love and dedication, however flawed; and it weakens the fabric of connection that could otherwise exist. Rather than provide a path toward compassion or understanding, “narcissistic mother” just becomes the latest form of mommy shaming.

Dr. Coleman is a clinical psychologist and author of “Rules of Estrangement: Why Adult Children Cut Ties and How to Heal the Conflict” (New York: Penguin Random House, 2021). Dr. Miller is a coauthor of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University Press, 2016). She has a private practice and is an assistant professor of psychiatry and behavioral sciences at Johns Hopkins University in Baltimore.

WASHINGTON –  Posttraumatic stress disorder (PTSD) is strongly linked to disordered eating, which in turn, impedes treatment for the anxiety disorder in new findings that underscore the need for better screening of eating disorder impairment (EDI).

“Eating-related and body-image concerns may be more prevalent than we think, and if not considered, these concerns can make psychotherapy treatment less effective,” study author Nick Powers, a doctoral student in clinical psychology, La Salle University, Philadelphia, told this news organization.

Nick Powers

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Common bedfellows

Although many patients with PTSD also have an eating disorder, they are not always properly assessed for eating pathology and related functional impairment.

Some therapists don’t feel adequately equipped to target eating-related concerns in these patients and so may refer them to other providers. This, said Mr. Powers, can prolong symptoms and further distress patients.

Mr. Powers noted childhood physical or sexual abuse may affect eating patterns in patients with PTSD. “The evidence suggests these types of trauma exposure can be risk factors for the development of an eating disorder.”

Undiagnosed eating pathology may exacerbate functional impairment from PTSD and weaken the impact of evidence-based treatment.

Such patients are challenging to treat as they may not have the requisite skills to fully engage in exposure therapy, an evidence-based approach to treat PTSD, said Mr. Powers.

To determine whether PTSD would be significantly linked to greater eating disorder impairment (EDI) compared with other anxiety-related diagnoses and whether this would impair treatment, investigators studied 748 patients with an anxiety disorder who were attending a cognitive behavioral therapy (CBT) clinic. Anxiety disorders included PTSD, obsessive-compulsive disorder (OCD), social anxiety, and panic disorder.

Participants completed the 16-item Clinical Impairment Assessment (CIA) questionnaire, which includes questions about eating habits and feelings about food, body shape, and weight over the previous 4 weeks. Participants also reported anxiety symptom severity at the beginning, during, and end of treatment.
 

Need for better screening

Results showed that compared with those who had other anxiety disorders, patients with PTSD were three times more likely to have disordered eating (odds ratio [OR], 3.06; 95% confidence interval [CI], 1.47-6.37; P = .003).

In addition, higher baseline CIA scores predicted poorer PTSD treatment outcome (beta = –1.4; 95% CI, –1.67 to –1.10; P < .01).

“Having higher baseline CIA scores meant that patients’ PTSD symptoms did not remit as strongly compared to those with lower scores,” said Mr. Powers.

Patients with both PTSD and an eating disorder may have difficulty with regulating emotions and tolerating distress, he said.

“They may use binge eating, purging, or food restriction as strategies to regulate emotions. These behaviors may allow patients to become numb to or avoid heightened emotions that come from having PTSD and an eating disorder.”

Prior research linked perfectionism tendencies to poorer response to PTSD treatment. Those with an eating disorder may share similar tendencies, said Mr. Powers.

“If someone is consistently thinking negatively about their eating or body to the point where it interrupts their functioning, they may not be as likely to fully engage with PTSD treatment,” he said.

Ideally, clinicians would screen all patients with PTSD for an eating disorder, said Mr. Powers. “If screening instruments aren’t feasible or available, even just inquiring about body image or history of maladaptive eating behaviors can be helpful.”

He added this could open up a conversation about a traumatic event in the patient’s past.
 

Confirmatory research

Commenting on the study, Karen S. Mitchell, PhD, clinical research psychologist, National Center for PTSD, VA Boston Healthcare System, and associate professor in psychiatry, Boston University, said she was “excited” to see this research.

Boston University

“Very few studies have examined the impact of baseline eating disorder symptoms on PTSD treatment outcomes or vice versa,” she said.

The study findings “add to the small but growing body of evidence suggesting that comorbid PTSD and eating disorder symptoms can impact recovery from each disorder,” she said.

She noted the importance of assessing comorbidity in patients presenting for treatment and of addressing comorbidity in both eating disorders and PTSD treatment. “But we need more research on how best to do this.”

Mr. Powers and Dr. Mitchell have reported no relevant financial relationships.
 

A version of this article first appeared on Medscape.com.

WASHINGTON –  Posttraumatic stress disorder (PTSD) is strongly linked to disordered eating, which in turn, impedes treatment for the anxiety disorder in new findings that underscore the need for better screening of eating disorder impairment (EDI).

“Eating-related and body-image concerns may be more prevalent than we think, and if not considered, these concerns can make psychotherapy treatment less effective,” study author Nick Powers, a doctoral student in clinical psychology, La Salle University, Philadelphia, told this news organization.

Nick Powers

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Common bedfellows

Although many patients with PTSD also have an eating disorder, they are not always properly assessed for eating pathology and related functional impairment.

Some therapists don’t feel adequately equipped to target eating-related concerns in these patients and so may refer them to other providers. This, said Mr. Powers, can prolong symptoms and further distress patients.

Mr. Powers noted childhood physical or sexual abuse may affect eating patterns in patients with PTSD. “The evidence suggests these types of trauma exposure can be risk factors for the development of an eating disorder.”

Undiagnosed eating pathology may exacerbate functional impairment from PTSD and weaken the impact of evidence-based treatment.

Such patients are challenging to treat as they may not have the requisite skills to fully engage in exposure therapy, an evidence-based approach to treat PTSD, said Mr. Powers.

To determine whether PTSD would be significantly linked to greater eating disorder impairment (EDI) compared with other anxiety-related diagnoses and whether this would impair treatment, investigators studied 748 patients with an anxiety disorder who were attending a cognitive behavioral therapy (CBT) clinic. Anxiety disorders included PTSD, obsessive-compulsive disorder (OCD), social anxiety, and panic disorder.

Participants completed the 16-item Clinical Impairment Assessment (CIA) questionnaire, which includes questions about eating habits and feelings about food, body shape, and weight over the previous 4 weeks. Participants also reported anxiety symptom severity at the beginning, during, and end of treatment.
 

Need for better screening

Results showed that compared with those who had other anxiety disorders, patients with PTSD were three times more likely to have disordered eating (odds ratio [OR], 3.06; 95% confidence interval [CI], 1.47-6.37; P = .003).

In addition, higher baseline CIA scores predicted poorer PTSD treatment outcome (beta = –1.4; 95% CI, –1.67 to –1.10; P < .01).

“Having higher baseline CIA scores meant that patients’ PTSD symptoms did not remit as strongly compared to those with lower scores,” said Mr. Powers.

Patients with both PTSD and an eating disorder may have difficulty with regulating emotions and tolerating distress, he said.

“They may use binge eating, purging, or food restriction as strategies to regulate emotions. These behaviors may allow patients to become numb to or avoid heightened emotions that come from having PTSD and an eating disorder.”

Prior research linked perfectionism tendencies to poorer response to PTSD treatment. Those with an eating disorder may share similar tendencies, said Mr. Powers.

“If someone is consistently thinking negatively about their eating or body to the point where it interrupts their functioning, they may not be as likely to fully engage with PTSD treatment,” he said.

Ideally, clinicians would screen all patients with PTSD for an eating disorder, said Mr. Powers. “If screening instruments aren’t feasible or available, even just inquiring about body image or history of maladaptive eating behaviors can be helpful.”

He added this could open up a conversation about a traumatic event in the patient’s past.
 

Confirmatory research

Commenting on the study, Karen S. Mitchell, PhD, clinical research psychologist, National Center for PTSD, VA Boston Healthcare System, and associate professor in psychiatry, Boston University, said she was “excited” to see this research.

Boston University

“Very few studies have examined the impact of baseline eating disorder symptoms on PTSD treatment outcomes or vice versa,” she said.

The study findings “add to the small but growing body of evidence suggesting that comorbid PTSD and eating disorder symptoms can impact recovery from each disorder,” she said.

She noted the importance of assessing comorbidity in patients presenting for treatment and of addressing comorbidity in both eating disorders and PTSD treatment. “But we need more research on how best to do this.”

Mr. Powers and Dr. Mitchell have reported no relevant financial relationships.
 

A version of this article first appeared on Medscape.com.

WASHINGTON –  Posttraumatic stress disorder (PTSD) is strongly linked to disordered eating, which in turn, impedes treatment for the anxiety disorder in new findings that underscore the need for better screening of eating disorder impairment (EDI).

“Eating-related and body-image concerns may be more prevalent than we think, and if not considered, these concerns can make psychotherapy treatment less effective,” study author Nick Powers, a doctoral student in clinical psychology, La Salle University, Philadelphia, told this news organization.

Nick Powers

The findings were presented as part of the Anxiety and Depression Association of America Anxiety & Depression conference.
 

Common bedfellows

Although many patients with PTSD also have an eating disorder, they are not always properly assessed for eating pathology and related functional impairment.

Some therapists don’t feel adequately equipped to target eating-related concerns in these patients and so may refer them to other providers. This, said Mr. Powers, can prolong symptoms and further distress patients.

Mr. Powers noted childhood physical or sexual abuse may affect eating patterns in patients with PTSD. “The evidence suggests these types of trauma exposure can be risk factors for the development of an eating disorder.”

Undiagnosed eating pathology may exacerbate functional impairment from PTSD and weaken the impact of evidence-based treatment.

Such patients are challenging to treat as they may not have the requisite skills to fully engage in exposure therapy, an evidence-based approach to treat PTSD, said Mr. Powers.

To determine whether PTSD would be significantly linked to greater eating disorder impairment (EDI) compared with other anxiety-related diagnoses and whether this would impair treatment, investigators studied 748 patients with an anxiety disorder who were attending a cognitive behavioral therapy (CBT) clinic. Anxiety disorders included PTSD, obsessive-compulsive disorder (OCD), social anxiety, and panic disorder.

Participants completed the 16-item Clinical Impairment Assessment (CIA) questionnaire, which includes questions about eating habits and feelings about food, body shape, and weight over the previous 4 weeks. Participants also reported anxiety symptom severity at the beginning, during, and end of treatment.
 

Need for better screening

Results showed that compared with those who had other anxiety disorders, patients with PTSD were three times more likely to have disordered eating (odds ratio [OR], 3.06; 95% confidence interval [CI], 1.47-6.37; P = .003).

In addition, higher baseline CIA scores predicted poorer PTSD treatment outcome (beta = –1.4; 95% CI, –1.67 to –1.10; P < .01).

“Having higher baseline CIA scores meant that patients’ PTSD symptoms did not remit as strongly compared to those with lower scores,” said Mr. Powers.

Patients with both PTSD and an eating disorder may have difficulty with regulating emotions and tolerating distress, he said.

“They may use binge eating, purging, or food restriction as strategies to regulate emotions. These behaviors may allow patients to become numb to or avoid heightened emotions that come from having PTSD and an eating disorder.”

Prior research linked perfectionism tendencies to poorer response to PTSD treatment. Those with an eating disorder may share similar tendencies, said Mr. Powers.

“If someone is consistently thinking negatively about their eating or body to the point where it interrupts their functioning, they may not be as likely to fully engage with PTSD treatment,” he said.

Ideally, clinicians would screen all patients with PTSD for an eating disorder, said Mr. Powers. “If screening instruments aren’t feasible or available, even just inquiring about body image or history of maladaptive eating behaviors can be helpful.”

He added this could open up a conversation about a traumatic event in the patient’s past.
 

Confirmatory research

Commenting on the study, Karen S. Mitchell, PhD, clinical research psychologist, National Center for PTSD, VA Boston Healthcare System, and associate professor in psychiatry, Boston University, said she was “excited” to see this research.

Boston University

“Very few studies have examined the impact of baseline eating disorder symptoms on PTSD treatment outcomes or vice versa,” she said.

The study findings “add to the small but growing body of evidence suggesting that comorbid PTSD and eating disorder symptoms can impact recovery from each disorder,” she said.

She noted the importance of assessing comorbidity in patients presenting for treatment and of addressing comorbidity in both eating disorders and PTSD treatment. “But we need more research on how best to do this.”

Mr. Powers and Dr. Mitchell have reported no relevant financial relationships.
 

A version of this article first appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet, which received thousands of likes and retweets, was cited in a recent article by one doctor on when physicians might stop using body mass index (BMI) to diagnose obesity.

BMI has for years been the consensus default method for assessing whether a person is overweight or has obesity, and is still widely used as the gatekeeper metric for treatment eligibility for certain weight-loss agents and bariatric surgery.

But growing appreciation of the limitations of BMI is causing many clinicians to consider alternative measures of obesity that can better assess both the amount of adiposity as well as its body location, an important determinant of the cardiometabolic consequences of fat.

Alternative metrics include waist circumference and/or waist-to-height ratio (WHtR); imaging methods such as CT, MRI, and dual-energy x-ray absorptiometry (DXA); and bioelectrical impedance to assess fat volume and location. All have made some inroads on the tight grip BMI has had on obesity assessment.

Chances are, however, that BMI will not fade away anytime soon given how entrenched it has become in clinical practice and for insurance coverage, as well as its relative simplicity and precision.

“BMI is embedded in a wide range of guidelines on the use of medications and surgery. It’s embedded in Food and Drug Administration regulations and for billing and insurance coverage. It would take extremely strong data and years of work to undo the infrastructure built around BMI and replace it with something else. I don’t see that happening [anytime soon],” commented Daniel H. Bessesen, MD, a professor at the University of Colorado at Denver, Aurora, and chief of endocrinology for Denver Health.

“It would be almost impossible to replace all the studies that have used BMI with investigations using some other measure,” he said.
 

BMI Is ‘imperfect’

The entrenched position of BMI as the go-to metric doesn’t keep detractors from weighing in. As noted in a commentary on current clinical challenges surrounding obesity recently published in Annals of Internal Medicine, the journal’s editor-in-chief, Christine Laine, MD, and senior deputy editor Christina C. Wee, MD, listed six top issues clinicians must deal with, one of which, they say, is the need for a better measure of obesity than BMI.

“Unfortunately, BMI is an imperfect measure of body composition that differs with ethnicity, sex, body frame, and muscle mass,” noted Dr. Laine and Dr. Wee.

BMI is based on a person’s weight in kilograms divided by the square of their height in meters. A “healthy” BMI is between 18.5 and 24.9 kg/m2, overweight is 25-29.9, and 30 or greater is considered to represent obesity. However, certain ethnic groups have lower cutoffs for overweight or obesity because of evidence that such individuals can be at higher risk of obesity-related comorbidities at lower BMIs.

“BMI was chosen as the initial screening tool [for obesity] not because anyone thought it was perfect or the best measure but because of its simplicity. All you need is height, weight, and a calculator,” Dr. Wee said in an interview.

Numerous online calculators are available, including one from the Centers for Disease Control and Prevention where height in feet and inches and weight in pounds can be entered to generate the BMI.

BMI is also inherently limited by being “a proxy for adiposity” and not a direct measure, added Dr. Wee, who is also director of the Obesity Research Program of Beth Israel Deaconess Medical Center, Boston.

As such, BMI can’t distinguish between fat and muscle because it relies on weight only to gauge adiposity, noted Tiffany Powell-Wiley, MD, an obesity researcher at the National Heart, Lung, and Blood Institute in Bethesda, Md. Another shortcoming of BMI is that it “is good for distinguishing population-level risk for cardiovascular disease and other chronic diseases, but it does not help as much for distinguishing risk at an individual level,” she said in an interview.

These and other drawbacks have prompted researchers to look for other useful metrics. WHtR, for example, has recently made headway as a potential BMI alternative or complement.
 

The case for WHtR

Concern about overreliance on BMI despite its limitations is not new. In 2015, an American Heart Association scientific statement from the group’s Obesity Committee concluded that “BMI alone, even with lower thresholds, is a useful but not an ideal tool for identification of obesity or assessment of cardiovascular risk,” especially for people from Asian, Black, Hispanic, and Pacific Islander populations.

The writing panel also recommended that clinicians measure waist circumference annually and use that information along with BMI “to better gauge cardiovascular risk in diverse populations.”

Momentum for moving beyond BMI alone has continued to build following the AHA statement.

In September 2022, the National Institute for Health and Care Excellence, which sets policies for the United Kingdom’s National Health Service, revised its guidancefor assessment and management of people with obesity. The updated guidance recommends that when clinicians assess “adults with BMI below 35 kg/m2, measure and use their WHtR, as well as their BMI, as a practical estimate of central adiposity and use these measurements to help to assess and predict health risks.”

NICE released an extensive literature review with the revision, and based on the evidence, said that “using waist-to-height ratio as well as BMI would help give a practical estimate of central adiposity in adults with BMI under 35 kg/m². This would in turn help professionals assess and predict health risks.”

However, the review added that, “because people with a BMI over 35 kg/m² are always likely to have a high WHtR, the committee recognized that it may not be a useful addition for predicting health risks in this group.” The 2022 NICE review also said that it is “important to estimate central adiposity when assessing future health risks, including for people whose BMI is in the healthy-weight category.”

This new emphasis by NICE on measuring and using WHtR as part of obesity assessment “represents an important change in population health policy,” commented Dr. Powell-Wiley. “I expect more professional organizations will endorse use of waist circumference or waist-to-height ratio now that NICE has taken this step,” she predicted.

Waist circumference and WHtR may become standard measures of adiposity in clinical practice over the next 5-10 years.

The recent move by NICE to highlight a complementary role for WHtR “is another acknowledgment that BMI is an imperfect tool for stratifying cardiometabolic risk in a diverse population, especially in people with lower BMIs” because of its variability, commented Jamie Almandoz, MD, medical director of the weight wellness program at UT Southwestern Medical Center, Dallas.
 

WHtR vs. BMI

Another recent step forward for WHtR came with the publication of a post hoc analysis of data collected in the PARADIGM-HF trial, a study that had the primary purpose of comparing two medications for improving outcomes in more than 8,000 patients with heart failure with reduced ejection fraction.

The new analysis showed that “two indices that incorporate waist circumference and height, but not weight, showed a clearer association between greater adiposity and a higher risk of heart failure hospitalization,” compared with BMI.

WHtR was one of the two indices identified as being a better correlate for the adverse effect of excess adiposity compared with BMI.

The authors of the post hoc analysis did not design their analysis to compare WHtR with BMI. Instead, their goal was to better understand what’s known as the “obesity paradox” in people with heart failure with reduced ejection fraction: The recurring observation that, when these patients with heart failure have lower BMIs they fare worse, with higher rates of mortality and adverse cardiovascular outcomes, compared with patients with higher BMIs.

The new analysis showed that this paradox disappeared when WHtR was substituted for BMI as the obesity metric.

This “provides meaningful data about the superiority of WHtR, compared with BMI, for predicting heart failure outcomes,” said Dr. Powell-Wiley, although she cautioned that the analysis was limited by scant data in diverse populations and did not look at other important cardiovascular disease outcomes. While Dr. Powell-Wiley does not think that WHtR needs assessment in a prospective, controlled trial, she called for analysis of pooled prospective studies with more diverse populations to better document the advantages of WHtR over BMI.

The PARADIGM-HF post hoc analysis shows again how flawed BMI is for health assessment and the relative importance of an individualized understanding of a person’s body composition, Dr. Almandoz said in an interview. “As we collect more data, there is increasing awareness of how imperfect BMI is.”
 

Measuring waist circumference is tricky

Although WHtR looks promising as a substitute for or add-on to BMI, it has its own limitations, particularly the challenge of accurately measuring waist circumference.

Measuring waist circumference “not only takes more time but requires the assessor to be well trained about where to put the tape measure and making sure it’s measured at the same place each time,” even when different people take serial measurements from individual patients, noted Dr. Wee. Determining waist circumference can also be technically difficult when done on larger people, she added, and collectively these challenges make waist circumference “less reproducible from measurement to measurement.”

“It’s relatively clear how to standardize measurement of weight and height, but there is a huge amount of variability when the waist is measured,” agreed Dr. Almandoz. “And waist circumference also differs by ethnicity, race, sex, and body frame. There are significant differences in waist circumference levels that associate with increased health risks” between, for example, White and South Asian people.

Another limitation of waist circumference and WHtR is that they “cannot differentiate between visceral and abdominal subcutaneous adipose tissue, which are vastly different regarding cardiometabolic risk, commented Ian Neeland, MD, director of cardiovascular prevention at the University Hospitals Harrington Heart & Vascular Institute, Cleveland.
 

The imaging option

“Waist-to-height ratio is not the ultimate answer,” Dr. Neeland said in an interview. He instead endorsed “advanced imaging for body fat distribution,” such as CT or MRI scans, as his pick for what should be the standard obesity metric, “given that it is much more specific and actionable for both risk assessment and response to therapy. I expect slow but steady advancements that move away from BMI cutoffs, for example for bariatric surgery, given that BMI is an imprecise and crude tool.”

But although imaging with methods like CT and MRI may provide the best accuracy and precision for tracking the volume of a person’s cardiometabolically dangerous fat, they are also hampered by relatively high cost and, for CT and DXA, the issue of radiation exposure.

“CT, MRI, and DXA scans give more in-depth assessment of body composition, but should we expose people to the radiation and the cost?” Dr. Almandoz wondered.

“Height, weight, and waist circumference cost nothing to obtain,” creating a big relative disadvantage for imaging, said Naveed Sattar, MD, professor of metabolic medicine at the University of Glasgow.

“Data would need to show that imaging gives clinicians substantially more information about future risk” to justify its price, Dr. Sattar emphasized.
 

BMI’s limits mean adding on

Regardless of whichever alternatives to BMI end up getting used most, experts generally agree that BMI alone is looking increasingly inadequate.

“Over the next 5 years, BMI will come to be seen as a screening tool that categorizes people into general risk groups” that also needs “other metrics and variables, such as age, race, ethnicity, family history, blood glucose, and blood pressure to better describe health risk in an individual,” predicted Dr. Bessesen.

The endorsement of WHtR by NICE “will lead to more research into how to incorporate WHtR into routine practice. We need more evidence to translate what NICE said into practice,” said Dr. Sattar. “I don’t think we’ll see a shift away from BMI, but we’ll add alternative measures that are particularly useful in certain patients.”

“Because we live in diverse societies, we need to individualize risk assessment and couple that with technology that makes analysis of body composition more accessible,” agreed Dr. Almandoz. He noted that the UT Southwestern weight wellness program where he practices has, for about the past decade, routinely collected waist circumference and bioelectrical impedance data as well as BMI on all people seen in the practice for obesity concerns. Making these additional measurements on a routine basis also helps strengthen patient engagement.

“We get into trouble when we make rigid health policy and clinical decisions based on BMI alone without looking at the patient holistically,” said Dr. Wee. “Patients are more than arbitrary numbers, and clinicians should make clinical decisions based on the totality of evidence for each individual patient.”

Dr. Bessesen, Dr. Wee, Dr. Powell-Wiley, and Dr. Almandoz reported no relevant financial relationships. Dr. Neeland has reported being a consultant for Merck. Dr. Sattar has reported being a consultant or speaker for Abbott Laboratories, Afimmune, Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceuticals, Janssen, MSD, Novartis, Novo Nordisk, Pfizer, Roche Diagnostics, and Sanofi.

A version of this article originally appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet, which received thousands of likes and retweets, was cited in a recent article by one doctor on when physicians might stop using body mass index (BMI) to diagnose obesity.

BMI has for years been the consensus default method for assessing whether a person is overweight or has obesity, and is still widely used as the gatekeeper metric for treatment eligibility for certain weight-loss agents and bariatric surgery.

But growing appreciation of the limitations of BMI is causing many clinicians to consider alternative measures of obesity that can better assess both the amount of adiposity as well as its body location, an important determinant of the cardiometabolic consequences of fat.

Alternative metrics include waist circumference and/or waist-to-height ratio (WHtR); imaging methods such as CT, MRI, and dual-energy x-ray absorptiometry (DXA); and bioelectrical impedance to assess fat volume and location. All have made some inroads on the tight grip BMI has had on obesity assessment.

Chances are, however, that BMI will not fade away anytime soon given how entrenched it has become in clinical practice and for insurance coverage, as well as its relative simplicity and precision.

“BMI is embedded in a wide range of guidelines on the use of medications and surgery. It’s embedded in Food and Drug Administration regulations and for billing and insurance coverage. It would take extremely strong data and years of work to undo the infrastructure built around BMI and replace it with something else. I don’t see that happening [anytime soon],” commented Daniel H. Bessesen, MD, a professor at the University of Colorado at Denver, Aurora, and chief of endocrinology for Denver Health.

“It would be almost impossible to replace all the studies that have used BMI with investigations using some other measure,” he said.
 

BMI Is ‘imperfect’

The entrenched position of BMI as the go-to metric doesn’t keep detractors from weighing in. As noted in a commentary on current clinical challenges surrounding obesity recently published in Annals of Internal Medicine, the journal’s editor-in-chief, Christine Laine, MD, and senior deputy editor Christina C. Wee, MD, listed six top issues clinicians must deal with, one of which, they say, is the need for a better measure of obesity than BMI.

“Unfortunately, BMI is an imperfect measure of body composition that differs with ethnicity, sex, body frame, and muscle mass,” noted Dr. Laine and Dr. Wee.

BMI is based on a person’s weight in kilograms divided by the square of their height in meters. A “healthy” BMI is between 18.5 and 24.9 kg/m2, overweight is 25-29.9, and 30 or greater is considered to represent obesity. However, certain ethnic groups have lower cutoffs for overweight or obesity because of evidence that such individuals can be at higher risk of obesity-related comorbidities at lower BMIs.

“BMI was chosen as the initial screening tool [for obesity] not because anyone thought it was perfect or the best measure but because of its simplicity. All you need is height, weight, and a calculator,” Dr. Wee said in an interview.

Numerous online calculators are available, including one from the Centers for Disease Control and Prevention where height in feet and inches and weight in pounds can be entered to generate the BMI.

BMI is also inherently limited by being “a proxy for adiposity” and not a direct measure, added Dr. Wee, who is also director of the Obesity Research Program of Beth Israel Deaconess Medical Center, Boston.

As such, BMI can’t distinguish between fat and muscle because it relies on weight only to gauge adiposity, noted Tiffany Powell-Wiley, MD, an obesity researcher at the National Heart, Lung, and Blood Institute in Bethesda, Md. Another shortcoming of BMI is that it “is good for distinguishing population-level risk for cardiovascular disease and other chronic diseases, but it does not help as much for distinguishing risk at an individual level,” she said in an interview.

These and other drawbacks have prompted researchers to look for other useful metrics. WHtR, for example, has recently made headway as a potential BMI alternative or complement.
 

The case for WHtR

Concern about overreliance on BMI despite its limitations is not new. In 2015, an American Heart Association scientific statement from the group’s Obesity Committee concluded that “BMI alone, even with lower thresholds, is a useful but not an ideal tool for identification of obesity or assessment of cardiovascular risk,” especially for people from Asian, Black, Hispanic, and Pacific Islander populations.

The writing panel also recommended that clinicians measure waist circumference annually and use that information along with BMI “to better gauge cardiovascular risk in diverse populations.”

Momentum for moving beyond BMI alone has continued to build following the AHA statement.

In September 2022, the National Institute for Health and Care Excellence, which sets policies for the United Kingdom’s National Health Service, revised its guidancefor assessment and management of people with obesity. The updated guidance recommends that when clinicians assess “adults with BMI below 35 kg/m2, measure and use their WHtR, as well as their BMI, as a practical estimate of central adiposity and use these measurements to help to assess and predict health risks.”

NICE released an extensive literature review with the revision, and based on the evidence, said that “using waist-to-height ratio as well as BMI would help give a practical estimate of central adiposity in adults with BMI under 35 kg/m². This would in turn help professionals assess and predict health risks.”

However, the review added that, “because people with a BMI over 35 kg/m² are always likely to have a high WHtR, the committee recognized that it may not be a useful addition for predicting health risks in this group.” The 2022 NICE review also said that it is “important to estimate central adiposity when assessing future health risks, including for people whose BMI is in the healthy-weight category.”

This new emphasis by NICE on measuring and using WHtR as part of obesity assessment “represents an important change in population health policy,” commented Dr. Powell-Wiley. “I expect more professional organizations will endorse use of waist circumference or waist-to-height ratio now that NICE has taken this step,” she predicted.

Waist circumference and WHtR may become standard measures of adiposity in clinical practice over the next 5-10 years.

The recent move by NICE to highlight a complementary role for WHtR “is another acknowledgment that BMI is an imperfect tool for stratifying cardiometabolic risk in a diverse population, especially in people with lower BMIs” because of its variability, commented Jamie Almandoz, MD, medical director of the weight wellness program at UT Southwestern Medical Center, Dallas.
 

WHtR vs. BMI

Another recent step forward for WHtR came with the publication of a post hoc analysis of data collected in the PARADIGM-HF trial, a study that had the primary purpose of comparing two medications for improving outcomes in more than 8,000 patients with heart failure with reduced ejection fraction.

The new analysis showed that “two indices that incorporate waist circumference and height, but not weight, showed a clearer association between greater adiposity and a higher risk of heart failure hospitalization,” compared with BMI.

WHtR was one of the two indices identified as being a better correlate for the adverse effect of excess adiposity compared with BMI.

The authors of the post hoc analysis did not design their analysis to compare WHtR with BMI. Instead, their goal was to better understand what’s known as the “obesity paradox” in people with heart failure with reduced ejection fraction: The recurring observation that, when these patients with heart failure have lower BMIs they fare worse, with higher rates of mortality and adverse cardiovascular outcomes, compared with patients with higher BMIs.

The new analysis showed that this paradox disappeared when WHtR was substituted for BMI as the obesity metric.

This “provides meaningful data about the superiority of WHtR, compared with BMI, for predicting heart failure outcomes,” said Dr. Powell-Wiley, although she cautioned that the analysis was limited by scant data in diverse populations and did not look at other important cardiovascular disease outcomes. While Dr. Powell-Wiley does not think that WHtR needs assessment in a prospective, controlled trial, she called for analysis of pooled prospective studies with more diverse populations to better document the advantages of WHtR over BMI.

The PARADIGM-HF post hoc analysis shows again how flawed BMI is for health assessment and the relative importance of an individualized understanding of a person’s body composition, Dr. Almandoz said in an interview. “As we collect more data, there is increasing awareness of how imperfect BMI is.”
 

Measuring waist circumference is tricky

Although WHtR looks promising as a substitute for or add-on to BMI, it has its own limitations, particularly the challenge of accurately measuring waist circumference.

Measuring waist circumference “not only takes more time but requires the assessor to be well trained about where to put the tape measure and making sure it’s measured at the same place each time,” even when different people take serial measurements from individual patients, noted Dr. Wee. Determining waist circumference can also be technically difficult when done on larger people, she added, and collectively these challenges make waist circumference “less reproducible from measurement to measurement.”

“It’s relatively clear how to standardize measurement of weight and height, but there is a huge amount of variability when the waist is measured,” agreed Dr. Almandoz. “And waist circumference also differs by ethnicity, race, sex, and body frame. There are significant differences in waist circumference levels that associate with increased health risks” between, for example, White and South Asian people.

Another limitation of waist circumference and WHtR is that they “cannot differentiate between visceral and abdominal subcutaneous adipose tissue, which are vastly different regarding cardiometabolic risk, commented Ian Neeland, MD, director of cardiovascular prevention at the University Hospitals Harrington Heart & Vascular Institute, Cleveland.
 

The imaging option

“Waist-to-height ratio is not the ultimate answer,” Dr. Neeland said in an interview. He instead endorsed “advanced imaging for body fat distribution,” such as CT or MRI scans, as his pick for what should be the standard obesity metric, “given that it is much more specific and actionable for both risk assessment and response to therapy. I expect slow but steady advancements that move away from BMI cutoffs, for example for bariatric surgery, given that BMI is an imprecise and crude tool.”

But although imaging with methods like CT and MRI may provide the best accuracy and precision for tracking the volume of a person’s cardiometabolically dangerous fat, they are also hampered by relatively high cost and, for CT and DXA, the issue of radiation exposure.

“CT, MRI, and DXA scans give more in-depth assessment of body composition, but should we expose people to the radiation and the cost?” Dr. Almandoz wondered.

“Height, weight, and waist circumference cost nothing to obtain,” creating a big relative disadvantage for imaging, said Naveed Sattar, MD, professor of metabolic medicine at the University of Glasgow.

“Data would need to show that imaging gives clinicians substantially more information about future risk” to justify its price, Dr. Sattar emphasized.
 

BMI’s limits mean adding on

Regardless of whichever alternatives to BMI end up getting used most, experts generally agree that BMI alone is looking increasingly inadequate.

“Over the next 5 years, BMI will come to be seen as a screening tool that categorizes people into general risk groups” that also needs “other metrics and variables, such as age, race, ethnicity, family history, blood glucose, and blood pressure to better describe health risk in an individual,” predicted Dr. Bessesen.

The endorsement of WHtR by NICE “will lead to more research into how to incorporate WHtR into routine practice. We need more evidence to translate what NICE said into practice,” said Dr. Sattar. “I don’t think we’ll see a shift away from BMI, but we’ll add alternative measures that are particularly useful in certain patients.”

“Because we live in diverse societies, we need to individualize risk assessment and couple that with technology that makes analysis of body composition more accessible,” agreed Dr. Almandoz. He noted that the UT Southwestern weight wellness program where he practices has, for about the past decade, routinely collected waist circumference and bioelectrical impedance data as well as BMI on all people seen in the practice for obesity concerns. Making these additional measurements on a routine basis also helps strengthen patient engagement.

“We get into trouble when we make rigid health policy and clinical decisions based on BMI alone without looking at the patient holistically,” said Dr. Wee. “Patients are more than arbitrary numbers, and clinicians should make clinical decisions based on the totality of evidence for each individual patient.”

Dr. Bessesen, Dr. Wee, Dr. Powell-Wiley, and Dr. Almandoz reported no relevant financial relationships. Dr. Neeland has reported being a consultant for Merck. Dr. Sattar has reported being a consultant or speaker for Abbott Laboratories, Afimmune, Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceuticals, Janssen, MSD, Novartis, Novo Nordisk, Pfizer, Roche Diagnostics, and Sanofi.

A version of this article originally appeared on Medscape.com.

“BMI is trash. Full stop.” This controversial tweet, which received thousands of likes and retweets, was cited in a recent article by one doctor on when physicians might stop using body mass index (BMI) to diagnose obesity.

BMI has for years been the consensus default method for assessing whether a person is overweight or has obesity, and is still widely used as the gatekeeper metric for treatment eligibility for certain weight-loss agents and bariatric surgery.

But growing appreciation of the limitations of BMI is causing many clinicians to consider alternative measures of obesity that can better assess both the amount of adiposity as well as its body location, an important determinant of the cardiometabolic consequences of fat.

Alternative metrics include waist circumference and/or waist-to-height ratio (WHtR); imaging methods such as CT, MRI, and dual-energy x-ray absorptiometry (DXA); and bioelectrical impedance to assess fat volume and location. All have made some inroads on the tight grip BMI has had on obesity assessment.

Chances are, however, that BMI will not fade away anytime soon given how entrenched it has become in clinical practice and for insurance coverage, as well as its relative simplicity and precision.

“BMI is embedded in a wide range of guidelines on the use of medications and surgery. It’s embedded in Food and Drug Administration regulations and for billing and insurance coverage. It would take extremely strong data and years of work to undo the infrastructure built around BMI and replace it with something else. I don’t see that happening [anytime soon],” commented Daniel H. Bessesen, MD, a professor at the University of Colorado at Denver, Aurora, and chief of endocrinology for Denver Health.

“It would be almost impossible to replace all the studies that have used BMI with investigations using some other measure,” he said.
 

BMI Is ‘imperfect’

The entrenched position of BMI as the go-to metric doesn’t keep detractors from weighing in. As noted in a commentary on current clinical challenges surrounding obesity recently published in Annals of Internal Medicine, the journal’s editor-in-chief, Christine Laine, MD, and senior deputy editor Christina C. Wee, MD, listed six top issues clinicians must deal with, one of which, they say, is the need for a better measure of obesity than BMI.

“Unfortunately, BMI is an imperfect measure of body composition that differs with ethnicity, sex, body frame, and muscle mass,” noted Dr. Laine and Dr. Wee.

BMI is based on a person’s weight in kilograms divided by the square of their height in meters. A “healthy” BMI is between 18.5 and 24.9 kg/m2, overweight is 25-29.9, and 30 or greater is considered to represent obesity. However, certain ethnic groups have lower cutoffs for overweight or obesity because of evidence that such individuals can be at higher risk of obesity-related comorbidities at lower BMIs.

“BMI was chosen as the initial screening tool [for obesity] not because anyone thought it was perfect or the best measure but because of its simplicity. All you need is height, weight, and a calculator,” Dr. Wee said in an interview.

Numerous online calculators are available, including one from the Centers for Disease Control and Prevention where height in feet and inches and weight in pounds can be entered to generate the BMI.

BMI is also inherently limited by being “a proxy for adiposity” and not a direct measure, added Dr. Wee, who is also director of the Obesity Research Program of Beth Israel Deaconess Medical Center, Boston.

As such, BMI can’t distinguish between fat and muscle because it relies on weight only to gauge adiposity, noted Tiffany Powell-Wiley, MD, an obesity researcher at the National Heart, Lung, and Blood Institute in Bethesda, Md. Another shortcoming of BMI is that it “is good for distinguishing population-level risk for cardiovascular disease and other chronic diseases, but it does not help as much for distinguishing risk at an individual level,” she said in an interview.

These and other drawbacks have prompted researchers to look for other useful metrics. WHtR, for example, has recently made headway as a potential BMI alternative or complement.
 

The case for WHtR

Concern about overreliance on BMI despite its limitations is not new. In 2015, an American Heart Association scientific statement from the group’s Obesity Committee concluded that “BMI alone, even with lower thresholds, is a useful but not an ideal tool for identification of obesity or assessment of cardiovascular risk,” especially for people from Asian, Black, Hispanic, and Pacific Islander populations.

The writing panel also recommended that clinicians measure waist circumference annually and use that information along with BMI “to better gauge cardiovascular risk in diverse populations.”

Momentum for moving beyond BMI alone has continued to build following the AHA statement.

In September 2022, the National Institute for Health and Care Excellence, which sets policies for the United Kingdom’s National Health Service, revised its guidancefor assessment and management of people with obesity. The updated guidance recommends that when clinicians assess “adults with BMI below 35 kg/m2, measure and use their WHtR, as well as their BMI, as a practical estimate of central adiposity and use these measurements to help to assess and predict health risks.”

NICE released an extensive literature review with the revision, and based on the evidence, said that “using waist-to-height ratio as well as BMI would help give a practical estimate of central adiposity in adults with BMI under 35 kg/m². This would in turn help professionals assess and predict health risks.”

However, the review added that, “because people with a BMI over 35 kg/m² are always likely to have a high WHtR, the committee recognized that it may not be a useful addition for predicting health risks in this group.” The 2022 NICE review also said that it is “important to estimate central adiposity when assessing future health risks, including for people whose BMI is in the healthy-weight category.”

This new emphasis by NICE on measuring and using WHtR as part of obesity assessment “represents an important change in population health policy,” commented Dr. Powell-Wiley. “I expect more professional organizations will endorse use of waist circumference or waist-to-height ratio now that NICE has taken this step,” she predicted.

Waist circumference and WHtR may become standard measures of adiposity in clinical practice over the next 5-10 years.

The recent move by NICE to highlight a complementary role for WHtR “is another acknowledgment that BMI is an imperfect tool for stratifying cardiometabolic risk in a diverse population, especially in people with lower BMIs” because of its variability, commented Jamie Almandoz, MD, medical director of the weight wellness program at UT Southwestern Medical Center, Dallas.
 

WHtR vs. BMI

Another recent step forward for WHtR came with the publication of a post hoc analysis of data collected in the PARADIGM-HF trial, a study that had the primary purpose of comparing two medications for improving outcomes in more than 8,000 patients with heart failure with reduced ejection fraction.

The new analysis showed that “two indices that incorporate waist circumference and height, but not weight, showed a clearer association between greater adiposity and a higher risk of heart failure hospitalization,” compared with BMI.

WHtR was one of the two indices identified as being a better correlate for the adverse effect of excess adiposity compared with BMI.

The authors of the post hoc analysis did not design their analysis to compare WHtR with BMI. Instead, their goal was to better understand what’s known as the “obesity paradox” in people with heart failure with reduced ejection fraction: The recurring observation that, when these patients with heart failure have lower BMIs they fare worse, with higher rates of mortality and adverse cardiovascular outcomes, compared with patients with higher BMIs.

The new analysis showed that this paradox disappeared when WHtR was substituted for BMI as the obesity metric.

This “provides meaningful data about the superiority of WHtR, compared with BMI, for predicting heart failure outcomes,” said Dr. Powell-Wiley, although she cautioned that the analysis was limited by scant data in diverse populations and did not look at other important cardiovascular disease outcomes. While Dr. Powell-Wiley does not think that WHtR needs assessment in a prospective, controlled trial, she called for analysis of pooled prospective studies with more diverse populations to better document the advantages of WHtR over BMI.

The PARADIGM-HF post hoc analysis shows again how flawed BMI is for health assessment and the relative importance of an individualized understanding of a person’s body composition, Dr. Almandoz said in an interview. “As we collect more data, there is increasing awareness of how imperfect BMI is.”
 

Measuring waist circumference is tricky

Although WHtR looks promising as a substitute for or add-on to BMI, it has its own limitations, particularly the challenge of accurately measuring waist circumference.

Measuring waist circumference “not only takes more time but requires the assessor to be well trained about where to put the tape measure and making sure it’s measured at the same place each time,” even when different people take serial measurements from individual patients, noted Dr. Wee. Determining waist circumference can also be technically difficult when done on larger people, she added, and collectively these challenges make waist circumference “less reproducible from measurement to measurement.”

“It’s relatively clear how to standardize measurement of weight and height, but there is a huge amount of variability when the waist is measured,” agreed Dr. Almandoz. “And waist circumference also differs by ethnicity, race, sex, and body frame. There are significant differences in waist circumference levels that associate with increased health risks” between, for example, White and South Asian people.

Another limitation of waist circumference and WHtR is that they “cannot differentiate between visceral and abdominal subcutaneous adipose tissue, which are vastly different regarding cardiometabolic risk, commented Ian Neeland, MD, director of cardiovascular prevention at the University Hospitals Harrington Heart & Vascular Institute, Cleveland.
 

The imaging option

“Waist-to-height ratio is not the ultimate answer,” Dr. Neeland said in an interview. He instead endorsed “advanced imaging for body fat distribution,” such as CT or MRI scans, as his pick for what should be the standard obesity metric, “given that it is much more specific and actionable for both risk assessment and response to therapy. I expect slow but steady advancements that move away from BMI cutoffs, for example for bariatric surgery, given that BMI is an imprecise and crude tool.”

But although imaging with methods like CT and MRI may provide the best accuracy and precision for tracking the volume of a person’s cardiometabolically dangerous fat, they are also hampered by relatively high cost and, for CT and DXA, the issue of radiation exposure.

“CT, MRI, and DXA scans give more in-depth assessment of body composition, but should we expose people to the radiation and the cost?” Dr. Almandoz wondered.

“Height, weight, and waist circumference cost nothing to obtain,” creating a big relative disadvantage for imaging, said Naveed Sattar, MD, professor of metabolic medicine at the University of Glasgow.

“Data would need to show that imaging gives clinicians substantially more information about future risk” to justify its price, Dr. Sattar emphasized.
 

BMI’s limits mean adding on

Regardless of whichever alternatives to BMI end up getting used most, experts generally agree that BMI alone is looking increasingly inadequate.

“Over the next 5 years, BMI will come to be seen as a screening tool that categorizes people into general risk groups” that also needs “other metrics and variables, such as age, race, ethnicity, family history, blood glucose, and blood pressure to better describe health risk in an individual,” predicted Dr. Bessesen.

The endorsement of WHtR by NICE “will lead to more research into how to incorporate WHtR into routine practice. We need more evidence to translate what NICE said into practice,” said Dr. Sattar. “I don’t think we’ll see a shift away from BMI, but we’ll add alternative measures that are particularly useful in certain patients.”

“Because we live in diverse societies, we need to individualize risk assessment and couple that with technology that makes analysis of body composition more accessible,” agreed Dr. Almandoz. He noted that the UT Southwestern weight wellness program where he practices has, for about the past decade, routinely collected waist circumference and bioelectrical impedance data as well as BMI on all people seen in the practice for obesity concerns. Making these additional measurements on a routine basis also helps strengthen patient engagement.

“We get into trouble when we make rigid health policy and clinical decisions based on BMI alone without looking at the patient holistically,” said Dr. Wee. “Patients are more than arbitrary numbers, and clinicians should make clinical decisions based on the totality of evidence for each individual patient.”

Dr. Bessesen, Dr. Wee, Dr. Powell-Wiley, and Dr. Almandoz reported no relevant financial relationships. Dr. Neeland has reported being a consultant for Merck. Dr. Sattar has reported being a consultant or speaker for Abbott Laboratories, Afimmune, Amgen, AstraZeneca, Boehringer Ingelheim, Eli Lilly, Hanmi Pharmaceuticals, Janssen, MSD, Novartis, Novo Nordisk, Pfizer, Roche Diagnostics, and Sanofi.

A version of this article originally appeared on Medscape.com.

Major depressive disorder (MDD) is linked to disruptions in energy and lipid metabolism, possibly caused by the interplay of the gut microbiome and blood metabolome, new research suggests.

Investigators found that MDD had specific metabolic “signatures” consisting of 124 metabolites that spanned energy and lipid pathways, with some involving the tricarboxylic acid cycle in particular. These changes in metabolites were consistent with differences in composition of several gut microbiota.

The researchers found that fatty acids and intermediate and very large lipoproteins changed in association with the depressive disease process. However, high-density lipoproteins and metabolites in the tricarboxylic acid cycle did not.

“As we wait to establish causal influences through clinical trials, clinicians should advise patients suffering from mood disorders to modify their diet by increasing the intake of fresh fruits, vegetables, and whole grains, as these provide the required fuel/fiber to the gut microbiota for their enrichment, and more short-chain fatty acids are produced for the optimal functioning of the body,” study investigator Najaf Amin, PhD, DSc, senior researcher, Nuffield Department of Population Health, Oxford University, England, told this news organization.

“At the same time, patients should be advised to minimize the intake of sugars and processed foods, which are known to have an inverse impact on the gut microbiome and are associated with higher inflammation,” she said.

The study was published online in JAMA Psychiatry.
 

MDD poorly understood

Although most antidepressants target the monoamine pathway, “evidence is increasing for a more complex interplay of multiple pathways involving a wide range of metabolic alterations spanning energy and lipid metabolism,” the authors wrote.

Previous research using the Nightingale proton nuclear magnetic resonance (NMR) metabolomics platform showed a “shift” toward decreased levels of high-density lipoproteins (HDLs) and increased levels of very low-density lipoproteins (VLDLs) and triglycerides among patients with depression.

The gut microbiome, which is primarily modulated by diet, “has been shown to be a major determinant of circulating lipids, specifically triglycerides and HDLs, and to regulate mitochondrial function,” the investigators noted. Patients with MDD are known to have disruptions in the gut microbiome.

The gut microbiome may “explain part of the shift in VLDL and HDL levels observed in patients with depression and if the metabolic signatures of the disease based on Nightingale metabolites can be used as a tool to infer the association between gut microbiome and depression.”

Dr. Amin called depression “one of the most poorly understood diseases, as underlying mechanisms remain elusive.”

Large-scale genetic studies “have shown that the contribution of genetics to depression is modest,” she continued. On the other hand, initial animal studies suggest the gut microbiome “may potentially have a causal influence on depression.”

Several studies have evaluated the influence of gut microbiome on depression, “but, due to small sample sizes and inadequate control for confounding factors, most of their findings were not reproducible.”

Harnessing the power of the UK Biobank, the investigators studied 58,257 individuals who were between the ages of 37 and 73 years at recruitment. They used data on NMR spectroscopy–based plasma metabolites in depression. Individuals who didn’t report depression at baseline served as controls.

Logistic regression analysis was used to test the association of metabolite levels with depression in four models, each with an increasing number of covariates.

To identify patterns of correlation in the “metabolic signatures of MDD and the human gut biome,” they regressed the metabolic signatures of MDD on the metabolic signatures of the gut microbiota and then regressed the metabolic signature of gut microbiota on the metabolic signatures of MDD.

Bidirectional 2-sample Mendelian randomization was used to ascertain the direction of the association observed between metabolites and MDD.

Individuals with lifetime and recurrent MDD were compared with controls (6,811 vs. 51,446 and 4,370 vs. 62,508, respectively).

Participants with lifetime MDD were significantly younger (median [IQR] age, 56 [49-62] years vs. 58 [51-64] years) and were more likely to be female in comparison with controls (54% vs. 35%).
 

‘Novel findings’

In the fully adjusted analysis, metabolic signatures of MDD were found to consist of 124 metabolites that spanned energy and lipid metabolism pathways.

The investigators noted that these “novel findings” included 49 metabolites encompassing those involved in the tricarboxylic acid cycle – citrate and pyruvate.

The findings revealed that fatty acids and intermediate and VLDL changed in association with the disease process. On the other hand, HDL and the metabolites in the tricarboxylic acid cycle did not.

“We observed that the genera Sellimonas, Eggerthella, Hungatella, and Lachnoclostridium were more abundant, while genera Ruminococcaceae ... Coprococcus, Lachnospiraceae ... Eubacterium ventriosum, Subdoligranulum, and family Ruminococcaceae were depleted in the guts of individuals with more symptoms of depression,” said Dr. Amin. “Of these, genus Eggerthella showed statistical evidence of being involved in the causal pathway.”

These microbes are involved in the synthesis of important neurotransmitters, such as gamma aminobutyric acid, butyrate, glutamate, and serotonin, she noted.

Butyrate produced by the gut can cross the blood-brain barrier, enter the brain, and affect transcriptional and translational activity or be used by the cells for generating energy, she added. “So basically, butyrate can influence depression through several routes – i.e., via immune regulation, genomic transcript/translation, and/or affecting energy metabolism.”
 

No causality

Commenting on the study, Emeran Mayer, MD, distinguished research professor of medicine, G. Oppenheimer Center for Neurobiology of Stress and Resilience and UCLA Brain Gut Microbiome Center, called it the “largest, most comprehensive and best validated association study to date providing further evidence for an association between gut microbial taxa, previously identified in patients with MDD, blood metabolites (generated by host and by microbes) and questionnaire data.”

However, “despite its strengths, the study does not allow [us] to identify a causal role of the microbiome alterations in the observed microbial and metabolic changes (fatty acids, Krebs cycle components),” cautioned Dr. Mayer, who was not involved with the study.

Moreover, “causality of gut microbial changes on the behavioral phenotype of depression cannot been inferred,” he concluded.

Metabolomics data were provided by the Alzheimer’s Disease Metabolomics Consortium. The study was funded wholly or in part by grants from the National Institute on Aging and Foundation for the National Institutes of Health. It was further supported by a grant from ZonMW Memorabel. Dr. Amin reports no relevant financial relationships. The other authors’ disclosures are listed oin the original article. Dr. Mayer is a scientific advisory board member of Danone, Axial Therapeutics, Viome, Amare, Mahana Therapeutics, Pendulum, Bloom Biosciences, and APC Microbiome Ireland.
 

A version of this article originally appeared on Medscape.com.

Major depressive disorder (MDD) is linked to disruptions in energy and lipid metabolism, possibly caused by the interplay of the gut microbiome and blood metabolome, new research suggests.

Investigators found that MDD had specific metabolic “signatures” consisting of 124 metabolites that spanned energy and lipid pathways, with some involving the tricarboxylic acid cycle in particular. These changes in metabolites were consistent with differences in composition of several gut microbiota.

The researchers found that fatty acids and intermediate and very large lipoproteins changed in association with the depressive disease process. However, high-density lipoproteins and metabolites in the tricarboxylic acid cycle did not.

“As we wait to establish causal influences through clinical trials, clinicians should advise patients suffering from mood disorders to modify their diet by increasing the intake of fresh fruits, vegetables, and whole grains, as these provide the required fuel/fiber to the gut microbiota for their enrichment, and more short-chain fatty acids are produced for the optimal functioning of the body,” study investigator Najaf Amin, PhD, DSc, senior researcher, Nuffield Department of Population Health, Oxford University, England, told this news organization.

“At the same time, patients should be advised to minimize the intake of sugars and processed foods, which are known to have an inverse impact on the gut microbiome and are associated with higher inflammation,” she said.

The study was published online in JAMA Psychiatry.
 

MDD poorly understood

Although most antidepressants target the monoamine pathway, “evidence is increasing for a more complex interplay of multiple pathways involving a wide range of metabolic alterations spanning energy and lipid metabolism,” the authors wrote.

Previous research using the Nightingale proton nuclear magnetic resonance (NMR) metabolomics platform showed a “shift” toward decreased levels of high-density lipoproteins (HDLs) and increased levels of very low-density lipoproteins (VLDLs) and triglycerides among patients with depression.

The gut microbiome, which is primarily modulated by diet, “has been shown to be a major determinant of circulating lipids, specifically triglycerides and HDLs, and to regulate mitochondrial function,” the investigators noted. Patients with MDD are known to have disruptions in the gut microbiome.

The gut microbiome may “explain part of the shift in VLDL and HDL levels observed in patients with depression and if the metabolic signatures of the disease based on Nightingale metabolites can be used as a tool to infer the association between gut microbiome and depression.”

Dr. Amin called depression “one of the most poorly understood diseases, as underlying mechanisms remain elusive.”

Large-scale genetic studies “have shown that the contribution of genetics to depression is modest,” she continued. On the other hand, initial animal studies suggest the gut microbiome “may potentially have a causal influence on depression.”

Several studies have evaluated the influence of gut microbiome on depression, “but, due to small sample sizes and inadequate control for confounding factors, most of their findings were not reproducible.”

Harnessing the power of the UK Biobank, the investigators studied 58,257 individuals who were between the ages of 37 and 73 years at recruitment. They used data on NMR spectroscopy–based plasma metabolites in depression. Individuals who didn’t report depression at baseline served as controls.

Logistic regression analysis was used to test the association of metabolite levels with depression in four models, each with an increasing number of covariates.

To identify patterns of correlation in the “metabolic signatures of MDD and the human gut biome,” they regressed the metabolic signatures of MDD on the metabolic signatures of the gut microbiota and then regressed the metabolic signature of gut microbiota on the metabolic signatures of MDD.

Bidirectional 2-sample Mendelian randomization was used to ascertain the direction of the association observed between metabolites and MDD.

Individuals with lifetime and recurrent MDD were compared with controls (6,811 vs. 51,446 and 4,370 vs. 62,508, respectively).

Participants with lifetime MDD were significantly younger (median [IQR] age, 56 [49-62] years vs. 58 [51-64] years) and were more likely to be female in comparison with controls (54% vs. 35%).
 

‘Novel findings’

In the fully adjusted analysis, metabolic signatures of MDD were found to consist of 124 metabolites that spanned energy and lipid metabolism pathways.

The investigators noted that these “novel findings” included 49 metabolites encompassing those involved in the tricarboxylic acid cycle – citrate and pyruvate.

The findings revealed that fatty acids and intermediate and VLDL changed in association with the disease process. On the other hand, HDL and the metabolites in the tricarboxylic acid cycle did not.

“We observed that the genera Sellimonas, Eggerthella, Hungatella, and Lachnoclostridium were more abundant, while genera Ruminococcaceae ... Coprococcus, Lachnospiraceae ... Eubacterium ventriosum, Subdoligranulum, and family Ruminococcaceae were depleted in the guts of individuals with more symptoms of depression,” said Dr. Amin. “Of these, genus Eggerthella showed statistical evidence of being involved in the causal pathway.”

These microbes are involved in the synthesis of important neurotransmitters, such as gamma aminobutyric acid, butyrate, glutamate, and serotonin, she noted.

Butyrate produced by the gut can cross the blood-brain barrier, enter the brain, and affect transcriptional and translational activity or be used by the cells for generating energy, she added. “So basically, butyrate can influence depression through several routes – i.e., via immune regulation, genomic transcript/translation, and/or affecting energy metabolism.”
 

No causality

Commenting on the study, Emeran Mayer, MD, distinguished research professor of medicine, G. Oppenheimer Center for Neurobiology of Stress and Resilience and UCLA Brain Gut Microbiome Center, called it the “largest, most comprehensive and best validated association study to date providing further evidence for an association between gut microbial taxa, previously identified in patients with MDD, blood metabolites (generated by host and by microbes) and questionnaire data.”

However, “despite its strengths, the study does not allow [us] to identify a causal role of the microbiome alterations in the observed microbial and metabolic changes (fatty acids, Krebs cycle components),” cautioned Dr. Mayer, who was not involved with the study.

Moreover, “causality of gut microbial changes on the behavioral phenotype of depression cannot been inferred,” he concluded.

Metabolomics data were provided by the Alzheimer’s Disease Metabolomics Consortium. The study was funded wholly or in part by grants from the National Institute on Aging and Foundation for the National Institutes of Health. It was further supported by a grant from ZonMW Memorabel. Dr. Amin reports no relevant financial relationships. The other authors’ disclosures are listed oin the original article. Dr. Mayer is a scientific advisory board member of Danone, Axial Therapeutics, Viome, Amare, Mahana Therapeutics, Pendulum, Bloom Biosciences, and APC Microbiome Ireland.
 

A version of this article originally appeared on Medscape.com.

Major depressive disorder (MDD) is linked to disruptions in energy and lipid metabolism, possibly caused by the interplay of the gut microbiome and blood metabolome, new research suggests.

Investigators found that MDD had specific metabolic “signatures” consisting of 124 metabolites that spanned energy and lipid pathways, with some involving the tricarboxylic acid cycle in particular. These changes in metabolites were consistent with differences in composition of several gut microbiota.

The researchers found that fatty acids and intermediate and very large lipoproteins changed in association with the depressive disease process. However, high-density lipoproteins and metabolites in the tricarboxylic acid cycle did not.

“As we wait to establish causal influences through clinical trials, clinicians should advise patients suffering from mood disorders to modify their diet by increasing the intake of fresh fruits, vegetables, and whole grains, as these provide the required fuel/fiber to the gut microbiota for their enrichment, and more short-chain fatty acids are produced for the optimal functioning of the body,” study investigator Najaf Amin, PhD, DSc, senior researcher, Nuffield Department of Population Health, Oxford University, England, told this news organization.

“At the same time, patients should be advised to minimize the intake of sugars and processed foods, which are known to have an inverse impact on the gut microbiome and are associated with higher inflammation,” she said.

The study was published online in JAMA Psychiatry.
 

MDD poorly understood

Although most antidepressants target the monoamine pathway, “evidence is increasing for a more complex interplay of multiple pathways involving a wide range of metabolic alterations spanning energy and lipid metabolism,” the authors wrote.

Previous research using the Nightingale proton nuclear magnetic resonance (NMR) metabolomics platform showed a “shift” toward decreased levels of high-density lipoproteins (HDLs) and increased levels of very low-density lipoproteins (VLDLs) and triglycerides among patients with depression.

The gut microbiome, which is primarily modulated by diet, “has been shown to be a major determinant of circulating lipids, specifically triglycerides and HDLs, and to regulate mitochondrial function,” the investigators noted. Patients with MDD are known to have disruptions in the gut microbiome.

The gut microbiome may “explain part of the shift in VLDL and HDL levels observed in patients with depression and if the metabolic signatures of the disease based on Nightingale metabolites can be used as a tool to infer the association between gut microbiome and depression.”

Dr. Amin called depression “one of the most poorly understood diseases, as underlying mechanisms remain elusive.”

Large-scale genetic studies “have shown that the contribution of genetics to depression is modest,” she continued. On the other hand, initial animal studies suggest the gut microbiome “may potentially have a causal influence on depression.”

Several studies have evaluated the influence of gut microbiome on depression, “but, due to small sample sizes and inadequate control for confounding factors, most of their findings were not reproducible.”

Harnessing the power of the UK Biobank, the investigators studied 58,257 individuals who were between the ages of 37 and 73 years at recruitment. They used data on NMR spectroscopy–based plasma metabolites in depression. Individuals who didn’t report depression at baseline served as controls.

Logistic regression analysis was used to test the association of metabolite levels with depression in four models, each with an increasing number of covariates.

To identify patterns of correlation in the “metabolic signatures of MDD and the human gut biome,” they regressed the metabolic signatures of MDD on the metabolic signatures of the gut microbiota and then regressed the metabolic signature of gut microbiota on the metabolic signatures of MDD.

Bidirectional 2-sample Mendelian randomization was used to ascertain the direction of the association observed between metabolites and MDD.

Individuals with lifetime and recurrent MDD were compared with controls (6,811 vs. 51,446 and 4,370 vs. 62,508, respectively).

Participants with lifetime MDD were significantly younger (median [IQR] age, 56 [49-62] years vs. 58 [51-64] years) and were more likely to be female in comparison with controls (54% vs. 35%).
 

‘Novel findings’

In the fully adjusted analysis, metabolic signatures of MDD were found to consist of 124 metabolites that spanned energy and lipid metabolism pathways.

The investigators noted that these “novel findings” included 49 metabolites encompassing those involved in the tricarboxylic acid cycle – citrate and pyruvate.

The findings revealed that fatty acids and intermediate and VLDL changed in association with the disease process. On the other hand, HDL and the metabolites in the tricarboxylic acid cycle did not.

“We observed that the genera Sellimonas, Eggerthella, Hungatella, and Lachnoclostridium were more abundant, while genera Ruminococcaceae ... Coprococcus, Lachnospiraceae ... Eubacterium ventriosum, Subdoligranulum, and family Ruminococcaceae were depleted in the guts of individuals with more symptoms of depression,” said Dr. Amin. “Of these, genus Eggerthella showed statistical evidence of being involved in the causal pathway.”

These microbes are involved in the synthesis of important neurotransmitters, such as gamma aminobutyric acid, butyrate, glutamate, and serotonin, she noted.

Butyrate produced by the gut can cross the blood-brain barrier, enter the brain, and affect transcriptional and translational activity or be used by the cells for generating energy, she added. “So basically, butyrate can influence depression through several routes – i.e., via immune regulation, genomic transcript/translation, and/or affecting energy metabolism.”
 

No causality

Commenting on the study, Emeran Mayer, MD, distinguished research professor of medicine, G. Oppenheimer Center for Neurobiology of Stress and Resilience and UCLA Brain Gut Microbiome Center, called it the “largest, most comprehensive and best validated association study to date providing further evidence for an association between gut microbial taxa, previously identified in patients with MDD, blood metabolites (generated by host and by microbes) and questionnaire data.”

However, “despite its strengths, the study does not allow [us] to identify a causal role of the microbiome alterations in the observed microbial and metabolic changes (fatty acids, Krebs cycle components),” cautioned Dr. Mayer, who was not involved with the study.

Moreover, “causality of gut microbial changes on the behavioral phenotype of depression cannot been inferred,” he concluded.

Metabolomics data were provided by the Alzheimer’s Disease Metabolomics Consortium. The study was funded wholly or in part by grants from the National Institute on Aging and Foundation for the National Institutes of Health. It was further supported by a grant from ZonMW Memorabel. Dr. Amin reports no relevant financial relationships. The other authors’ disclosures are listed oin the original article. Dr. Mayer is a scientific advisory board member of Danone, Axial Therapeutics, Viome, Amare, Mahana Therapeutics, Pendulum, Bloom Biosciences, and APC Microbiome Ireland.
 

A version of this article originally appeared on Medscape.com.