VTE rates in lenalidomide-treated NHL may warrant prophylaxis

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– The rate of venous thromboembolism (VTE) in patients with non-Hodgkin lymphoma (NHL) treated with lenalidomide is similar to that seen in multiple myeloma, according to results of recent systematic review and meta-analysis of trials representing more than 10,000 treatment cycles.

Although rates of VTE for NHL and myeloma could not be directly compared statistically, the finding may have clinical implications for NHL patients, said lead study author Samuel Yamshon, MD, an internal medicine resident at Cornell University, New York.

“Although outpatient VTE prophylaxis is not currently recommended, it should be carefully considered in patients with lymphoma being treated with lenalidomide, especially those receiving lenalidomide as a single agent,” Dr. Yamshon said in a presentation of the results at the annual meeting of the American Society of Hematology.

The rate of thrombosis in patients with B cell NHL who received lenalidomide treatment was 0.75 events per 100 patient-cycles, according to results of the meta-analysis, which was based on 28 articles including 10,332 cycles of lenalidomide received by patients with B-cell NHL.

Reported rates of thrombosis in previously untreated myeloma patients treated with lenalidomide are between 0.7 and 0.8 per 100 patient-cycles, Dr. Yamshon said in his presentation.

Notably, single-agent lenalidomide was linked with a significantly increased risk of thrombosis compared with lenalidomide treatment in combinations. The relative risk of VTE for lenalidomide as a single agent versus lenalidomide in combination was 2.01 (95% confidence interval, 1.28-3.16; P = .002), according to the presented data.

The investigators were unsure why single-agent lenalidomide appeared to have caused increased rates of thrombosis compared to lenalidomide in combinations. “Perhaps patients treated with additional agents have a lower tumor burden, leading to less venous obstruction causing clots, or perhaps there’s a direct interaction between lenalidomide and tumor leading to effects on the vasculature and mediators of coagulation,” Dr. Yamshon said.

Chemotherapy and biologic combinations had somewhat different VTE rates when compared to single-agent lenalidomide. The rate in patients receiving lenalidomide alone was 1.06 events per 100 patient-cycles, compared with 0.73 and 0.41 events per 100 patient-cycles, respectively, for lenalidomide plus chemotherapy and lenalidomide plus biologics.

However, the lower event rate with lenalidomide and biologics compared with lenalidomide and chemotherapy was a “nonsignificant trend” that was likely caused by differences in patient characteristics between the two cohorts, according to Dr. Yamshon.

None of the studies included in the meta-analysis were prospectively designed to measure VTE as a primary or secondary outcome, Dr. Yamshon noted in a discussion of the study’s limitations.

Further studies are warranted to determine lenalidomide’s effect on the vasculature and how it effects mediators of coagulation, he added.

Based on the current results, Dr. Yamshon said it may be reasonable to consider VTE prophylaxis in NHL patients receiving lenalidomide.

“If we’re going to be recommending outpatient VTE prophylaxis in everyone on lenalidomide in multiple myeloma, and the rates (of VTE) are the same, I think it certainly makes sense based on the data to recommend it,” he said in a question-and-answer session.

Dr. Yamshon reported no conflicts related to the study. Coauthors reported disclosures related to Roche, Celgene, Seattle Genetics, Pharmacyclics, Cell Medica, Janssen, and AstraZeneca.

SOURCE: Yamshon S et al. Abstract 677.

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– The rate of venous thromboembolism (VTE) in patients with non-Hodgkin lymphoma (NHL) treated with lenalidomide is similar to that seen in multiple myeloma, according to results of recent systematic review and meta-analysis of trials representing more than 10,000 treatment cycles.

Although rates of VTE for NHL and myeloma could not be directly compared statistically, the finding may have clinical implications for NHL patients, said lead study author Samuel Yamshon, MD, an internal medicine resident at Cornell University, New York.

“Although outpatient VTE prophylaxis is not currently recommended, it should be carefully considered in patients with lymphoma being treated with lenalidomide, especially those receiving lenalidomide as a single agent,” Dr. Yamshon said in a presentation of the results at the annual meeting of the American Society of Hematology.

The rate of thrombosis in patients with B cell NHL who received lenalidomide treatment was 0.75 events per 100 patient-cycles, according to results of the meta-analysis, which was based on 28 articles including 10,332 cycles of lenalidomide received by patients with B-cell NHL.

Reported rates of thrombosis in previously untreated myeloma patients treated with lenalidomide are between 0.7 and 0.8 per 100 patient-cycles, Dr. Yamshon said in his presentation.

Notably, single-agent lenalidomide was linked with a significantly increased risk of thrombosis compared with lenalidomide treatment in combinations. The relative risk of VTE for lenalidomide as a single agent versus lenalidomide in combination was 2.01 (95% confidence interval, 1.28-3.16; P = .002), according to the presented data.

The investigators were unsure why single-agent lenalidomide appeared to have caused increased rates of thrombosis compared to lenalidomide in combinations. “Perhaps patients treated with additional agents have a lower tumor burden, leading to less venous obstruction causing clots, or perhaps there’s a direct interaction between lenalidomide and tumor leading to effects on the vasculature and mediators of coagulation,” Dr. Yamshon said.

Chemotherapy and biologic combinations had somewhat different VTE rates when compared to single-agent lenalidomide. The rate in patients receiving lenalidomide alone was 1.06 events per 100 patient-cycles, compared with 0.73 and 0.41 events per 100 patient-cycles, respectively, for lenalidomide plus chemotherapy and lenalidomide plus biologics.

However, the lower event rate with lenalidomide and biologics compared with lenalidomide and chemotherapy was a “nonsignificant trend” that was likely caused by differences in patient characteristics between the two cohorts, according to Dr. Yamshon.

None of the studies included in the meta-analysis were prospectively designed to measure VTE as a primary or secondary outcome, Dr. Yamshon noted in a discussion of the study’s limitations.

Further studies are warranted to determine lenalidomide’s effect on the vasculature and how it effects mediators of coagulation, he added.

Based on the current results, Dr. Yamshon said it may be reasonable to consider VTE prophylaxis in NHL patients receiving lenalidomide.

“If we’re going to be recommending outpatient VTE prophylaxis in everyone on lenalidomide in multiple myeloma, and the rates (of VTE) are the same, I think it certainly makes sense based on the data to recommend it,” he said in a question-and-answer session.

Dr. Yamshon reported no conflicts related to the study. Coauthors reported disclosures related to Roche, Celgene, Seattle Genetics, Pharmacyclics, Cell Medica, Janssen, and AstraZeneca.

SOURCE: Yamshon S et al. Abstract 677.

 

– The rate of venous thromboembolism (VTE) in patients with non-Hodgkin lymphoma (NHL) treated with lenalidomide is similar to that seen in multiple myeloma, according to results of recent systematic review and meta-analysis of trials representing more than 10,000 treatment cycles.

Although rates of VTE for NHL and myeloma could not be directly compared statistically, the finding may have clinical implications for NHL patients, said lead study author Samuel Yamshon, MD, an internal medicine resident at Cornell University, New York.

“Although outpatient VTE prophylaxis is not currently recommended, it should be carefully considered in patients with lymphoma being treated with lenalidomide, especially those receiving lenalidomide as a single agent,” Dr. Yamshon said in a presentation of the results at the annual meeting of the American Society of Hematology.

The rate of thrombosis in patients with B cell NHL who received lenalidomide treatment was 0.75 events per 100 patient-cycles, according to results of the meta-analysis, which was based on 28 articles including 10,332 cycles of lenalidomide received by patients with B-cell NHL.

Reported rates of thrombosis in previously untreated myeloma patients treated with lenalidomide are between 0.7 and 0.8 per 100 patient-cycles, Dr. Yamshon said in his presentation.

Notably, single-agent lenalidomide was linked with a significantly increased risk of thrombosis compared with lenalidomide treatment in combinations. The relative risk of VTE for lenalidomide as a single agent versus lenalidomide in combination was 2.01 (95% confidence interval, 1.28-3.16; P = .002), according to the presented data.

The investigators were unsure why single-agent lenalidomide appeared to have caused increased rates of thrombosis compared to lenalidomide in combinations. “Perhaps patients treated with additional agents have a lower tumor burden, leading to less venous obstruction causing clots, or perhaps there’s a direct interaction between lenalidomide and tumor leading to effects on the vasculature and mediators of coagulation,” Dr. Yamshon said.

Chemotherapy and biologic combinations had somewhat different VTE rates when compared to single-agent lenalidomide. The rate in patients receiving lenalidomide alone was 1.06 events per 100 patient-cycles, compared with 0.73 and 0.41 events per 100 patient-cycles, respectively, for lenalidomide plus chemotherapy and lenalidomide plus biologics.

However, the lower event rate with lenalidomide and biologics compared with lenalidomide and chemotherapy was a “nonsignificant trend” that was likely caused by differences in patient characteristics between the two cohorts, according to Dr. Yamshon.

None of the studies included in the meta-analysis were prospectively designed to measure VTE as a primary or secondary outcome, Dr. Yamshon noted in a discussion of the study’s limitations.

Further studies are warranted to determine lenalidomide’s effect on the vasculature and how it effects mediators of coagulation, he added.

Based on the current results, Dr. Yamshon said it may be reasonable to consider VTE prophylaxis in NHL patients receiving lenalidomide.

“If we’re going to be recommending outpatient VTE prophylaxis in everyone on lenalidomide in multiple myeloma, and the rates (of VTE) are the same, I think it certainly makes sense based on the data to recommend it,” he said in a question-and-answer session.

Dr. Yamshon reported no conflicts related to the study. Coauthors reported disclosures related to Roche, Celgene, Seattle Genetics, Pharmacyclics, Cell Medica, Janssen, and AstraZeneca.

SOURCE: Yamshon S et al. Abstract 677.

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Key clinical point: The rates of VTE in patients on lenalidomide are similar whether they’re being treated for B cell non-Hodgkin lymphoma (NHL) or multiple myeloma, which suggests that VTE prophylaxis should be more carefully considered in B cell NHL patients.

Major finding: The rate of thrombosis in patients with B cell NHL who received lenalidomide treatment was 0.75 events per 100 patient-cycles.

Data source: A systematic review and meta-analysis of 28 articles including 10,332 cycles of lenalidomide received by patients with B cell NHL.

Disclosures: Authors of the study reported disclosures related to Roche, Celgene, Seattle Genetics, Pharmacyclics, Cell Medica, Janssen, and AstraZeneca.

Source: Yamshon S et al. Abstract 677.

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CDK4/6 inhibitors have similar efficacy in older breast cancer patients

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SAN ANTONIO – Treatment with cyclin-dependent kinase 4/6 inhibitors (CDK4/6) appears to have the same efficacy in older breast cancer patients, as compared to younger ones, according to new findings presented at the San Antonio Breast Cancer Symposium.

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SAN ANTONIO – Treatment with cyclin-dependent kinase 4/6 inhibitors (CDK4/6) appears to have the same efficacy in older breast cancer patients, as compared to younger ones, according to new findings presented at the San Antonio Breast Cancer Symposium.

 

SAN ANTONIO – Treatment with cyclin-dependent kinase 4/6 inhibitors (CDK4/6) appears to have the same efficacy in older breast cancer patients, as compared to younger ones, according to new findings presented at the San Antonio Breast Cancer Symposium.

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Key clinical point: Cyclin-dependent kinase 4 and 6 inhibitors are as effective in older breast cancer patients, as compared with younger ones.

Major finding: The PFS in patients aged 70 years or older treated with a CDK4/6 inhibitor plus an aromatase inhibitor was not reached vs. 16.8 months for those who received an aromatase inhibitor only.

Data source: Pooled retrospective subgroup analysis that included 1,334 breast cancer patients treated with CDK4/6 inhibitors and aromatase inhibitors.

Disclosures:. The study was run by the FDA. Dr. Singh and coauthors have no disclosures.

Source: Singh H et al., SABCS 2017 Abstract GS5-06.

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Edoxaban noninferior to dalteparin for cancer-associated VTE

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– Twelve months of daily treatment with the novel oral factor Xa inhibitor edoxaban was noninferior to standard subcutaneous therapy with dalteparin for treatment of venous thromboembolism in patients with cancer, according to late-breaking results from a randomized, open-label, blinded-outcomes trial.

SOURCE: Raskob G et al. ASH Abstract LBA-6.

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– Twelve months of daily treatment with the novel oral factor Xa inhibitor edoxaban was noninferior to standard subcutaneous therapy with dalteparin for treatment of venous thromboembolism in patients with cancer, according to late-breaking results from a randomized, open-label, blinded-outcomes trial.

SOURCE: Raskob G et al. ASH Abstract LBA-6.

 

– Twelve months of daily treatment with the novel oral factor Xa inhibitor edoxaban was noninferior to standard subcutaneous therapy with dalteparin for treatment of venous thromboembolism in patients with cancer, according to late-breaking results from a randomized, open-label, blinded-outcomes trial.

SOURCE: Raskob G et al. ASH Abstract LBA-6.

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Key clinical point: Oral anticoagulation with edoxaban is easier, but has a slightly higher rate of major bleeds than does subcutaneous heparin.

Major finding: After 12 months, the combined rate of first recurrent VTE/major bleeding was 12.8% with edoxaban and 13.5% with dalteparin.

Data source: A randomized, multicenter, open-label trial of 1,046 adults with cancer and VTE.

Disclosures: Daiichi Sankyo provided funding. Dr. Raskob disclosed consulting relationships and honoraria from Daiichi Sankyo, Eli Lilly, Janssen, and several other pharmaceutical companies.

Source: Raskob G et al. ASH Abstract LBA-6.

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Psychotic symptoms predict persistent problems in adolescents

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– Teens who reported psychotic symptoms – especially hallucinations – on a baseline mental health screening were twice as likely to develop persistent psychiatric symptoms over the next year as were those without such experiences.

Hallucinations in particular predicted a persistent course, nearly tripling the risk (odds ratio, 2.74), Saliha El-Bouhaddani said at the meeting of the World Psychiatric Association.

“This is quite informative and quite clinically relevant,” said Ms. El-Bouhaddani, a doctoral student in psychology at the Parnassia Group, Rotterdam, the Netherlands. Because mental health symptoms in young people may be self-limiting, it’s not easy to identify which teens are at high risk for developing persistent problems that can predispose them to a full-blown mental disorder. “But we can see here that psychotic experiences may be very useful in detecting which adolescents may have persistency of symptoms. I believe that screening tools for teenagers should involve questions about psychotic symptoms, because the answer may help us discriminate who will have a self-limiting course and who will have a persistent course.”

Ms. El-Bouhaddani described MasterMind, a longitudinal cohort study of adolescents drawn from the general population. Each teen completed self-report questionnaires on psychotic experiences and psychosocial problems at two time points over a 2-year period. The study was divided into two phases: a 1-year observational period, followed by an intervention for those at risk, and then a 1-year treatment and follow-up period. She reported only the results of the observational phase.

The study enrolled 1,827 young people, who completed four questionnaires: the Strengths & Difficulties Questionnaire, and questionnaires about psychotic experiences, trauma, and self-esteem. One year later, 1,521 of the participants returned and completed the same surveys.

Ms. El-Bouhaddani constructed four potential pathways from baseline to follow-up: no psychiatric symptoms, remitting symptoms (baseline psychosocial symptoms that remitted by 1 year), incident symptoms (symptoms that appeared only at 1 year), and persistent symptoms (symptoms at both baseline and 1 year). Her goal was to identify any baseline characteristics that might predict a persistent course.

At the 1-year point, the cohort was a mean of 13.5 years old. Most subjects (1,134) had no symptoms at either time point. Incident symptoms were present in 151, remitting symptoms in 181, and persistent symptoms in 46.

Several baseline characteristics significantly separated the group with remitting symptoms from all other groups: They were significantly more likely to have a low education level (61%), to have divorced parents (38%), to report frequent household moves (22%), to have repeated a grade (31%), to report low self-esteem (15%), and to have somatic symptoms (3%). Teens with persistent symptoms also reported more somatic symptoms (3%), but they were significantly more likely than any of the other groups to report having had at least one traumatic event (45%).

At follow-up, psychotic incidents were significantly more common in the remitting and persistent groups (40% and 62%, respectively) than in the nonsymptomatic and incident groups (10% and 11%).

Ms. El-Bouhaddani then broke psychotic experiences down into hallucinations and delusions, and examined their relationships to symptom course. Hallucinations were significantly more common than delusions among those with a persistent course (58% vs. 42%).

She conducted a logistic regression analysis, which determined that any psychotic experience nearly doubled the risk of a persistent course of psychiatric symptoms (OR, 1.92). Hallucinations nearly tripled the risk (OR, 2.74), as did traumatic experiences (OR, 3.0). Delusions increased the risk by close to 60% (OR, 1.59).

The SDQ does not contain questions about psychotic experiences or trauma – the two most powerful predictors of persistent symptoms. It’s time to change this, Ms. El-Bouhaddani said.

“From these results it seems as though we should be asking adolescents about psychotic experiences and trauma. Perhaps it’s time for a new version of the SDQ.”

She had no relevant financial disclosures.

SOURCE: El-Bouhaddani S et al. WPA 2017 Abstract S-023 002.

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– Teens who reported psychotic symptoms – especially hallucinations – on a baseline mental health screening were twice as likely to develop persistent psychiatric symptoms over the next year as were those without such experiences.

Hallucinations in particular predicted a persistent course, nearly tripling the risk (odds ratio, 2.74), Saliha El-Bouhaddani said at the meeting of the World Psychiatric Association.

“This is quite informative and quite clinically relevant,” said Ms. El-Bouhaddani, a doctoral student in psychology at the Parnassia Group, Rotterdam, the Netherlands. Because mental health symptoms in young people may be self-limiting, it’s not easy to identify which teens are at high risk for developing persistent problems that can predispose them to a full-blown mental disorder. “But we can see here that psychotic experiences may be very useful in detecting which adolescents may have persistency of symptoms. I believe that screening tools for teenagers should involve questions about psychotic symptoms, because the answer may help us discriminate who will have a self-limiting course and who will have a persistent course.”

Ms. El-Bouhaddani described MasterMind, a longitudinal cohort study of adolescents drawn from the general population. Each teen completed self-report questionnaires on psychotic experiences and psychosocial problems at two time points over a 2-year period. The study was divided into two phases: a 1-year observational period, followed by an intervention for those at risk, and then a 1-year treatment and follow-up period. She reported only the results of the observational phase.

The study enrolled 1,827 young people, who completed four questionnaires: the Strengths & Difficulties Questionnaire, and questionnaires about psychotic experiences, trauma, and self-esteem. One year later, 1,521 of the participants returned and completed the same surveys.

Ms. El-Bouhaddani constructed four potential pathways from baseline to follow-up: no psychiatric symptoms, remitting symptoms (baseline psychosocial symptoms that remitted by 1 year), incident symptoms (symptoms that appeared only at 1 year), and persistent symptoms (symptoms at both baseline and 1 year). Her goal was to identify any baseline characteristics that might predict a persistent course.

At the 1-year point, the cohort was a mean of 13.5 years old. Most subjects (1,134) had no symptoms at either time point. Incident symptoms were present in 151, remitting symptoms in 181, and persistent symptoms in 46.

Several baseline characteristics significantly separated the group with remitting symptoms from all other groups: They were significantly more likely to have a low education level (61%), to have divorced parents (38%), to report frequent household moves (22%), to have repeated a grade (31%), to report low self-esteem (15%), and to have somatic symptoms (3%). Teens with persistent symptoms also reported more somatic symptoms (3%), but they were significantly more likely than any of the other groups to report having had at least one traumatic event (45%).

At follow-up, psychotic incidents were significantly more common in the remitting and persistent groups (40% and 62%, respectively) than in the nonsymptomatic and incident groups (10% and 11%).

Ms. El-Bouhaddani then broke psychotic experiences down into hallucinations and delusions, and examined their relationships to symptom course. Hallucinations were significantly more common than delusions among those with a persistent course (58% vs. 42%).

She conducted a logistic regression analysis, which determined that any psychotic experience nearly doubled the risk of a persistent course of psychiatric symptoms (OR, 1.92). Hallucinations nearly tripled the risk (OR, 2.74), as did traumatic experiences (OR, 3.0). Delusions increased the risk by close to 60% (OR, 1.59).

The SDQ does not contain questions about psychotic experiences or trauma – the two most powerful predictors of persistent symptoms. It’s time to change this, Ms. El-Bouhaddani said.

“From these results it seems as though we should be asking adolescents about psychotic experiences and trauma. Perhaps it’s time for a new version of the SDQ.”

She had no relevant financial disclosures.

SOURCE: El-Bouhaddani S et al. WPA 2017 Abstract S-023 002.

 

– Teens who reported psychotic symptoms – especially hallucinations – on a baseline mental health screening were twice as likely to develop persistent psychiatric symptoms over the next year as were those without such experiences.

Hallucinations in particular predicted a persistent course, nearly tripling the risk (odds ratio, 2.74), Saliha El-Bouhaddani said at the meeting of the World Psychiatric Association.

“This is quite informative and quite clinically relevant,” said Ms. El-Bouhaddani, a doctoral student in psychology at the Parnassia Group, Rotterdam, the Netherlands. Because mental health symptoms in young people may be self-limiting, it’s not easy to identify which teens are at high risk for developing persistent problems that can predispose them to a full-blown mental disorder. “But we can see here that psychotic experiences may be very useful in detecting which adolescents may have persistency of symptoms. I believe that screening tools for teenagers should involve questions about psychotic symptoms, because the answer may help us discriminate who will have a self-limiting course and who will have a persistent course.”

Ms. El-Bouhaddani described MasterMind, a longitudinal cohort study of adolescents drawn from the general population. Each teen completed self-report questionnaires on psychotic experiences and psychosocial problems at two time points over a 2-year period. The study was divided into two phases: a 1-year observational period, followed by an intervention for those at risk, and then a 1-year treatment and follow-up period. She reported only the results of the observational phase.

The study enrolled 1,827 young people, who completed four questionnaires: the Strengths & Difficulties Questionnaire, and questionnaires about psychotic experiences, trauma, and self-esteem. One year later, 1,521 of the participants returned and completed the same surveys.

Ms. El-Bouhaddani constructed four potential pathways from baseline to follow-up: no psychiatric symptoms, remitting symptoms (baseline psychosocial symptoms that remitted by 1 year), incident symptoms (symptoms that appeared only at 1 year), and persistent symptoms (symptoms at both baseline and 1 year). Her goal was to identify any baseline characteristics that might predict a persistent course.

At the 1-year point, the cohort was a mean of 13.5 years old. Most subjects (1,134) had no symptoms at either time point. Incident symptoms were present in 151, remitting symptoms in 181, and persistent symptoms in 46.

Several baseline characteristics significantly separated the group with remitting symptoms from all other groups: They were significantly more likely to have a low education level (61%), to have divorced parents (38%), to report frequent household moves (22%), to have repeated a grade (31%), to report low self-esteem (15%), and to have somatic symptoms (3%). Teens with persistent symptoms also reported more somatic symptoms (3%), but they were significantly more likely than any of the other groups to report having had at least one traumatic event (45%).

At follow-up, psychotic incidents were significantly more common in the remitting and persistent groups (40% and 62%, respectively) than in the nonsymptomatic and incident groups (10% and 11%).

Ms. El-Bouhaddani then broke psychotic experiences down into hallucinations and delusions, and examined their relationships to symptom course. Hallucinations were significantly more common than delusions among those with a persistent course (58% vs. 42%).

She conducted a logistic regression analysis, which determined that any psychotic experience nearly doubled the risk of a persistent course of psychiatric symptoms (OR, 1.92). Hallucinations nearly tripled the risk (OR, 2.74), as did traumatic experiences (OR, 3.0). Delusions increased the risk by close to 60% (OR, 1.59).

The SDQ does not contain questions about psychotic experiences or trauma – the two most powerful predictors of persistent symptoms. It’s time to change this, Ms. El-Bouhaddani said.

“From these results it seems as though we should be asking adolescents about psychotic experiences and trauma. Perhaps it’s time for a new version of the SDQ.”

She had no relevant financial disclosures.

SOURCE: El-Bouhaddani S et al. WPA 2017 Abstract S-023 002.

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Key clinical point: Among teens, psychotic symptoms predicted a persistent course of psychosocial problems.

Major finding: Psychotic experiences at baseline doubled the risk of a persistent course of psychosocial problems (odds ratio, 1.94).

Study details: A prospective longitudinal cohort study of 1,521 teens.

Disclosures: Ms. El-Bouhaddani had no relevant financial disclosures.

Source: El-Bouhaddani S et al. WPA 2017 Abstract S-023 002.

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Using oral and topical cosmeceuticals to prevent and treat skin aging, Part I

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It is important for dermatologists to recognize patients at an increased risk of skin aging early enough to initiate countermeasures. “Wrinkle-prone” skin types can be identified easily through use of the Baumann Skin Type Indicator Questionnaire.1 The wrinkle-prone Baumann skin type is associated with age or with lifestyle factors that increase the risk for promoting skin aging.2 Prevention and treatment of numerous signs of cutaneous aging can be achieved through consistent daily use of oral and topical products suited to the identified specifically wrinkle-prone Baumann skin type.

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Because patient compliance is well known to be challenging, patient education is a key element of achieving positive outcomes with treatment regimens.3 This month, the column discusses the causes of aging with a focus on the cells involved in the process and ways to prevent and treat two major causes of skin aging – damage to DNA and mitochondrial DNA. Next month will discuss other causes, as well as oral and topical treatments for skin aging. The goal is to help clarify the science and marketing claims of skin care technologies targeted at treating skin aging.

Skin aging

The numerous causes of skin aging can be divided into two broad categories: intrinsic and extrinsic. Intrinsic aging results from cellular processes that occur over time and is influenced by genetics. Such aging is characterized by decreased function of keratinocytes and fibroblasts, intra- and extracellular accumulation of by-products, reduced function of sirtuins (proteins that regulate cell metabolism and aging), mitochondrial damage, and loss of telomeres.

Extrinsic aging results from environmental exposures that engender cell damage, including UV light, infrared and radiation exposure, air pollution, smoking, tanning beds, alcohol and drug usage, stress, and poor diet. Extrinsic aging occurs as a result of intersecting processes caused by free radicals, DNA damage, glycation, inflammation, and other actions by the immune system. Generally, these factors can be partially mitigated through behavioral change. As much as 80% of facial aging can be ascribed to sun exposure.4 Several mechanisms through which sun exposure promotes aging have been well characterized. DNA damage results when UV light induces covalent bonds between nucleic acid base pairs and forms thymine dimers, which can alter tumor suppressor gene p53 function, thereby increasing the risk of cutaneous cancers and aging.5 UV exposure also yields free radicals that create damaging oxidative stress,6 which can activate the arachidonic acid pathway resulting in inflammation.7 Other skin aging mechanisms are not as well understood.
 

The cellular role in aging: Keratinocytes and fibroblasts

Keratinocyte cells found in layers that resemble the brick-and-mortar structure of a brick wall compose the epidermis. Each epidermal layer exhibits specific functional roles and characteristics. The top layer of the epidermis, known as the stratum corneum, is notable because it forms the skin barrier. This protective barrier contains cross-linked proteins for strength, antioxidants to protect the cells from free radicals, a bilayer lipid membrane layer to prevent water evaporation from the cells surface, immune cells, antimicrobial peptides, and a natural microbiome. Damage to any layer of the epidermis can unleash a cascade of events that can lead to increased cutaneous aging.

The dermis is composed of fibroblast cells, which synthesize collagen, elastin, hyaluronic acid, heparan sulfate, and other glycosaminoglycans that keep the skin smooth, strong, and healthy. Collagen confers strength, elastin provides elasticity, and the glycosaminoglycans such as hyaluronic acid, heparan sulfate, and dermatan sulfate bind water, impart volume to the skin, and provide support for important cell-to-cell communication.

When keratinocytes and fibroblasts age, they may no longer respond to cellular signals such as growth factors. The primary aim of any antiaging skin care regimen is to protect and rejuvenate these key skin cells.

Cellular damage that contributes to skin aging

The accumulated damage from intrinsic and extrinsic factors yields keratinocytes and fibroblasts that fail to produce important cellular components as well as they did when they were younger. Cellular factors that age cells include nuclear DNA damage, mitochondrial DNA damage, diminished lysosomal function, structural impairment of proteins, and damage to cell membranes. This harm occurs because of the direct effects of UV radiation, pollution, toxins, free radicals (oxidation), glycation, and inflammation.

Preventing and treating DNA damage

DNA damage presents as thymine-thymine dimers, pyrimidine-pyrimidine dimers, impaired telomeres, or other mutations. Broad-spectrum sunscreens and sun avoidance are important steps in preventing DNA damage induced from exposure to UV radiation. Other cosmeceutical agents have been designed to hinder the effects of UV radiation or to foster DNA repair. Besides sunscreen, the key members of the dermatologic armamentarium against DNA damage are various antioxidants. Data have been gathered over the last few decades that support the protective effects of antioxidants such as polypodium leucotomos,ascorbic acid, and green tea. Other antioxidants are associated with less data, but hypothetically should deliver similar benefits.

 

 

Polypodium leucotomos (PL), an oral extract derived from ferns, has been demonstrated to display photoprotective effects at an oral dose of 7.5 mg. PL has consistently exhibited antitumor and skin protective effects.8 A 2004 study in humans revealed that two oral doses of PL contributed to a significant reduction in DNA damage after UV exposure,9 and a 2017 study showed that PL protected skin DNA from UVB.10 Although PL has been linked to topical benefits, it is the oral form that is most often used to protect skin.

Ascorbic acid, also known as vitamin C, has been amply demonstrated to confer benefits when given both orally and topically. An acidic environment is necessary for optimal absorption. Topical application of ascorbic acid, along with vitamin E and ferulic acid, has been demonstrated to decrease the formation of thymine dimers.11 Unlike other antioxidants, ascorbic acid also stimulates procollagen genes in fibroblasts to increase collagen synthesis.12

Madeleine_Steinbach/Thinkstock
Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties. Curcumin is the principal curcuminoid of turmeric, pictured here.
Niacinamide, also known as nicotinamide, is an integral part of the niacin coenzymes nicotinamide adenine dinucleotide (NAD+), nicotinamide adenine dinucleotide phosphate (NADP+), and their reduced forms NADH and NADPH. These contribute to DNA production and repair and are involved in multiple other important enzymatic reactions. Topical niacinamide has been demonstrated to play a role in DNA repair13 by providing cells with the energy that the DNA repair enzymes need to unwind the DNA strand, replace the nucleosides, and rewind the strand. Specifically, niacinamide is known to enhance DNA excision repair and repair of UVB-induced cyclobutane pyrimidine dimers and UVA-induced 8-oxo-7,8-dihydro-2´-deoxyguanosine.14 Niacinamide is used topically because oral forms of niacin have been found to provoke flushing.

EpiGalloCatechin-3-O-Gallate (also known as EGCG), the primary active constituent of green tea, has been demonstrated to induce IL-12 to increase the production of enzymes that repair UV-induced DNA damage.15 The proven photoprotective effects of topical and oral green tea include reducing UV-induced erythema, decreasing sunburn cell formation, and attenuating DNA damage.16
 

Preventing and treating mitochondrial DNA damage

UV radiation elicits mitochondrial DNA damage known as the “common deletion.”17 Damaged mitochondria produce harmful free radicals known as reactive oxygen species. Mitochondria damage caused by ROS decreases the mitochondria’s ability to generate ATP energy, which is necessary for DNA repair and other cellular processes.

Free radicals and UV radiation damage mitochondria, as does normal cellular metabolism. The range of damage includes mitochondrial DNA impairment, loss of mitochondrial enzymes, and decreased ATP production. This leads to less energy for DNA repair and other reparative processes. While there is no established way to reduce mitochondrial damage once it has occurred, several research initiatives to achieve this end are underway. Currently, protecting the mitochondria from harm with sunscreens and antioxidants is the best option.

Antioxidants are effective in preventing the damaging effects of free radicals on vulnerable mitochondria. As a component of the mitochondrial respiratory chain and an antioxidant itself, coenzyme Q10 is particularly useful in this role. CoQ10 is available in both oral and topical formulations. Oral forms should be taken only in the morning because of a caffeine-like effect. Topical forms of CoQ10 have a dark yellow color that may be unappealing to patients. Polypodium leucotomos has been shown to lower the number of common deletions found in the mitochondria of irradiated keratinocytes and fibroblasts.18 The oral form is recommended. Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties.19 Its strong yellow color and smell render it better suited for oral use although many companies are trying to develop cosmetically elegant topical formulations.
 

Scavenging free radicals

Ultraviolet light, pollution, and other insults engender free radical formation. Even sunscreen use has been linked to increased production of free radicals. Free radicals, also known as reactive oxygen species, harm cells in many ways including mitochondrial damage, DNA mutations, glycation, lysosomal damage, and oxidation of important lipids and other cellular components such as proteins. Antioxidants present various beneficial effects including scavenging free radicals, decreasing activation of mitogen-activated protein kinases, chelation of copper required by tyrosinase, and suppression of inflammatory factors, such as nuclear factor (NF)-kB.20. Antioxidants are essential in preventing aged skin.

In summary, skin aging has many causes. Although they are not all understood, some of the processes have been elucidated. Next month, this column will focus on the prevention and treatment of inflammation and glycation, as well as reversing the effects of aging on skin cells.

Dr. Leslie S. Baumann

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002) and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014). She also wrote a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems LLC.

References

1. Baumann, Leslie S. “Cosmeceuticals and cosmetic ingredients” (New York: McGraw-Hill Education / Medical, 2014).

2. Baumann, Leslie S. The Baumann Skin Typing System in “Textbook of Aging Skin” (New York: Springer-Verlag Berlin Heidelberg, 2017). pp. 1579-94.

3. Storm A et al. J Am Acad Dermatol. 2008 Dec;59(6):975-80.

4. Uitto J. N Engl J Med. 1997 Nov 13;337(20):1463-5.

5. Tornaletti S et al. Science. 1994;263(5152):1436-8.

6. Bickers D et al. J. Investig. Dermatol. 2006;126(12):2565-75.

7. Yaar M et al. Br J Dermatol. 2007 Nov;157(5):874-87.

8. Parrado C et al. Int J Mol Sci. 2016 Jun 29;17(7). pii: E1026.

9. Middelkamp-Hup MA et al. J Am Acad Dermatol. 2004 Dec;51(6):910-8.

10. Kohli I et al. J Am Acad Dermatol. 2017 Jul;77(1):33-41.

11. Murray JC et al. J Am Acad Dermatol. 2008;59(3):418-25.

12. Geesin JC et al. J Invest Dermatol. 1988 Apr;90(4):420-4.

13. Thompson BC et al. PLoS One. 2015 Feb 6;10(2):e0117491.

14. Surjana D et al. Carcinogenesis. 2013 May;34(5):1144-9.

15. Meeran SM et al. Cancer Res. 2006 May 15;66(10):5512-20.

16. Elmets CA et al. J Am Acad Dermatol. 2001 Mar;44(3):425-32.

17. Berneburg M et al. J Invest Dermatol. 2004 May;122(5):1277-83.

18. Villa A et al. J Am Acad Dermatol. 2010 Mar;62(3):511-3.

19. Trujillo J et al. Arch Pharm Chem Life Sci. 2014. doi: 10.1002/ardp.2014002662014.

20. Muthusam V et al. Arch Dermatol Res. 2010 Jan;302(1):5-17.

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It is important for dermatologists to recognize patients at an increased risk of skin aging early enough to initiate countermeasures. “Wrinkle-prone” skin types can be identified easily through use of the Baumann Skin Type Indicator Questionnaire.1 The wrinkle-prone Baumann skin type is associated with age or with lifestyle factors that increase the risk for promoting skin aging.2 Prevention and treatment of numerous signs of cutaneous aging can be achieved through consistent daily use of oral and topical products suited to the identified specifically wrinkle-prone Baumann skin type.

bonchan/Thinkstock
Heap of japanese green tea with young leaves
Because patient compliance is well known to be challenging, patient education is a key element of achieving positive outcomes with treatment regimens.3 This month, the column discusses the causes of aging with a focus on the cells involved in the process and ways to prevent and treat two major causes of skin aging – damage to DNA and mitochondrial DNA. Next month will discuss other causes, as well as oral and topical treatments for skin aging. The goal is to help clarify the science and marketing claims of skin care technologies targeted at treating skin aging.

Skin aging

The numerous causes of skin aging can be divided into two broad categories: intrinsic and extrinsic. Intrinsic aging results from cellular processes that occur over time and is influenced by genetics. Such aging is characterized by decreased function of keratinocytes and fibroblasts, intra- and extracellular accumulation of by-products, reduced function of sirtuins (proteins that regulate cell metabolism and aging), mitochondrial damage, and loss of telomeres.

Extrinsic aging results from environmental exposures that engender cell damage, including UV light, infrared and radiation exposure, air pollution, smoking, tanning beds, alcohol and drug usage, stress, and poor diet. Extrinsic aging occurs as a result of intersecting processes caused by free radicals, DNA damage, glycation, inflammation, and other actions by the immune system. Generally, these factors can be partially mitigated through behavioral change. As much as 80% of facial aging can be ascribed to sun exposure.4 Several mechanisms through which sun exposure promotes aging have been well characterized. DNA damage results when UV light induces covalent bonds between nucleic acid base pairs and forms thymine dimers, which can alter tumor suppressor gene p53 function, thereby increasing the risk of cutaneous cancers and aging.5 UV exposure also yields free radicals that create damaging oxidative stress,6 which can activate the arachidonic acid pathway resulting in inflammation.7 Other skin aging mechanisms are not as well understood.
 

The cellular role in aging: Keratinocytes and fibroblasts

Keratinocyte cells found in layers that resemble the brick-and-mortar structure of a brick wall compose the epidermis. Each epidermal layer exhibits specific functional roles and characteristics. The top layer of the epidermis, known as the stratum corneum, is notable because it forms the skin barrier. This protective barrier contains cross-linked proteins for strength, antioxidants to protect the cells from free radicals, a bilayer lipid membrane layer to prevent water evaporation from the cells surface, immune cells, antimicrobial peptides, and a natural microbiome. Damage to any layer of the epidermis can unleash a cascade of events that can lead to increased cutaneous aging.

The dermis is composed of fibroblast cells, which synthesize collagen, elastin, hyaluronic acid, heparan sulfate, and other glycosaminoglycans that keep the skin smooth, strong, and healthy. Collagen confers strength, elastin provides elasticity, and the glycosaminoglycans such as hyaluronic acid, heparan sulfate, and dermatan sulfate bind water, impart volume to the skin, and provide support for important cell-to-cell communication.

When keratinocytes and fibroblasts age, they may no longer respond to cellular signals such as growth factors. The primary aim of any antiaging skin care regimen is to protect and rejuvenate these key skin cells.

Cellular damage that contributes to skin aging

The accumulated damage from intrinsic and extrinsic factors yields keratinocytes and fibroblasts that fail to produce important cellular components as well as they did when they were younger. Cellular factors that age cells include nuclear DNA damage, mitochondrial DNA damage, diminished lysosomal function, structural impairment of proteins, and damage to cell membranes. This harm occurs because of the direct effects of UV radiation, pollution, toxins, free radicals (oxidation), glycation, and inflammation.

Preventing and treating DNA damage

DNA damage presents as thymine-thymine dimers, pyrimidine-pyrimidine dimers, impaired telomeres, or other mutations. Broad-spectrum sunscreens and sun avoidance are important steps in preventing DNA damage induced from exposure to UV radiation. Other cosmeceutical agents have been designed to hinder the effects of UV radiation or to foster DNA repair. Besides sunscreen, the key members of the dermatologic armamentarium against DNA damage are various antioxidants. Data have been gathered over the last few decades that support the protective effects of antioxidants such as polypodium leucotomos,ascorbic acid, and green tea. Other antioxidants are associated with less data, but hypothetically should deliver similar benefits.

 

 

Polypodium leucotomos (PL), an oral extract derived from ferns, has been demonstrated to display photoprotective effects at an oral dose of 7.5 mg. PL has consistently exhibited antitumor and skin protective effects.8 A 2004 study in humans revealed that two oral doses of PL contributed to a significant reduction in DNA damage after UV exposure,9 and a 2017 study showed that PL protected skin DNA from UVB.10 Although PL has been linked to topical benefits, it is the oral form that is most often used to protect skin.

Ascorbic acid, also known as vitamin C, has been amply demonstrated to confer benefits when given both orally and topically. An acidic environment is necessary for optimal absorption. Topical application of ascorbic acid, along with vitamin E and ferulic acid, has been demonstrated to decrease the formation of thymine dimers.11 Unlike other antioxidants, ascorbic acid also stimulates procollagen genes in fibroblasts to increase collagen synthesis.12

Madeleine_Steinbach/Thinkstock
Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties. Curcumin is the principal curcuminoid of turmeric, pictured here.
Niacinamide, also known as nicotinamide, is an integral part of the niacin coenzymes nicotinamide adenine dinucleotide (NAD+), nicotinamide adenine dinucleotide phosphate (NADP+), and their reduced forms NADH and NADPH. These contribute to DNA production and repair and are involved in multiple other important enzymatic reactions. Topical niacinamide has been demonstrated to play a role in DNA repair13 by providing cells with the energy that the DNA repair enzymes need to unwind the DNA strand, replace the nucleosides, and rewind the strand. Specifically, niacinamide is known to enhance DNA excision repair and repair of UVB-induced cyclobutane pyrimidine dimers and UVA-induced 8-oxo-7,8-dihydro-2´-deoxyguanosine.14 Niacinamide is used topically because oral forms of niacin have been found to provoke flushing.

EpiGalloCatechin-3-O-Gallate (also known as EGCG), the primary active constituent of green tea, has been demonstrated to induce IL-12 to increase the production of enzymes that repair UV-induced DNA damage.15 The proven photoprotective effects of topical and oral green tea include reducing UV-induced erythema, decreasing sunburn cell formation, and attenuating DNA damage.16
 

Preventing and treating mitochondrial DNA damage

UV radiation elicits mitochondrial DNA damage known as the “common deletion.”17 Damaged mitochondria produce harmful free radicals known as reactive oxygen species. Mitochondria damage caused by ROS decreases the mitochondria’s ability to generate ATP energy, which is necessary for DNA repair and other cellular processes.

Free radicals and UV radiation damage mitochondria, as does normal cellular metabolism. The range of damage includes mitochondrial DNA impairment, loss of mitochondrial enzymes, and decreased ATP production. This leads to less energy for DNA repair and other reparative processes. While there is no established way to reduce mitochondrial damage once it has occurred, several research initiatives to achieve this end are underway. Currently, protecting the mitochondria from harm with sunscreens and antioxidants is the best option.

Antioxidants are effective in preventing the damaging effects of free radicals on vulnerable mitochondria. As a component of the mitochondrial respiratory chain and an antioxidant itself, coenzyme Q10 is particularly useful in this role. CoQ10 is available in both oral and topical formulations. Oral forms should be taken only in the morning because of a caffeine-like effect. Topical forms of CoQ10 have a dark yellow color that may be unappealing to patients. Polypodium leucotomos has been shown to lower the number of common deletions found in the mitochondria of irradiated keratinocytes and fibroblasts.18 The oral form is recommended. Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties.19 Its strong yellow color and smell render it better suited for oral use although many companies are trying to develop cosmetically elegant topical formulations.
 

Scavenging free radicals

Ultraviolet light, pollution, and other insults engender free radical formation. Even sunscreen use has been linked to increased production of free radicals. Free radicals, also known as reactive oxygen species, harm cells in many ways including mitochondrial damage, DNA mutations, glycation, lysosomal damage, and oxidation of important lipids and other cellular components such as proteins. Antioxidants present various beneficial effects including scavenging free radicals, decreasing activation of mitogen-activated protein kinases, chelation of copper required by tyrosinase, and suppression of inflammatory factors, such as nuclear factor (NF)-kB.20. Antioxidants are essential in preventing aged skin.

In summary, skin aging has many causes. Although they are not all understood, some of the processes have been elucidated. Next month, this column will focus on the prevention and treatment of inflammation and glycation, as well as reversing the effects of aging on skin cells.

Dr. Leslie S. Baumann

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002) and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014). She also wrote a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems LLC.

References

1. Baumann, Leslie S. “Cosmeceuticals and cosmetic ingredients” (New York: McGraw-Hill Education / Medical, 2014).

2. Baumann, Leslie S. The Baumann Skin Typing System in “Textbook of Aging Skin” (New York: Springer-Verlag Berlin Heidelberg, 2017). pp. 1579-94.

3. Storm A et al. J Am Acad Dermatol. 2008 Dec;59(6):975-80.

4. Uitto J. N Engl J Med. 1997 Nov 13;337(20):1463-5.

5. Tornaletti S et al. Science. 1994;263(5152):1436-8.

6. Bickers D et al. J. Investig. Dermatol. 2006;126(12):2565-75.

7. Yaar M et al. Br J Dermatol. 2007 Nov;157(5):874-87.

8. Parrado C et al. Int J Mol Sci. 2016 Jun 29;17(7). pii: E1026.

9. Middelkamp-Hup MA et al. J Am Acad Dermatol. 2004 Dec;51(6):910-8.

10. Kohli I et al. J Am Acad Dermatol. 2017 Jul;77(1):33-41.

11. Murray JC et al. J Am Acad Dermatol. 2008;59(3):418-25.

12. Geesin JC et al. J Invest Dermatol. 1988 Apr;90(4):420-4.

13. Thompson BC et al. PLoS One. 2015 Feb 6;10(2):e0117491.

14. Surjana D et al. Carcinogenesis. 2013 May;34(5):1144-9.

15. Meeran SM et al. Cancer Res. 2006 May 15;66(10):5512-20.

16. Elmets CA et al. J Am Acad Dermatol. 2001 Mar;44(3):425-32.

17. Berneburg M et al. J Invest Dermatol. 2004 May;122(5):1277-83.

18. Villa A et al. J Am Acad Dermatol. 2010 Mar;62(3):511-3.

19. Trujillo J et al. Arch Pharm Chem Life Sci. 2014. doi: 10.1002/ardp.2014002662014.

20. Muthusam V et al. Arch Dermatol Res. 2010 Jan;302(1):5-17.

 

It is important for dermatologists to recognize patients at an increased risk of skin aging early enough to initiate countermeasures. “Wrinkle-prone” skin types can be identified easily through use of the Baumann Skin Type Indicator Questionnaire.1 The wrinkle-prone Baumann skin type is associated with age or with lifestyle factors that increase the risk for promoting skin aging.2 Prevention and treatment of numerous signs of cutaneous aging can be achieved through consistent daily use of oral and topical products suited to the identified specifically wrinkle-prone Baumann skin type.

bonchan/Thinkstock
Heap of japanese green tea with young leaves
Because patient compliance is well known to be challenging, patient education is a key element of achieving positive outcomes with treatment regimens.3 This month, the column discusses the causes of aging with a focus on the cells involved in the process and ways to prevent and treat two major causes of skin aging – damage to DNA and mitochondrial DNA. Next month will discuss other causes, as well as oral and topical treatments for skin aging. The goal is to help clarify the science and marketing claims of skin care technologies targeted at treating skin aging.

Skin aging

The numerous causes of skin aging can be divided into two broad categories: intrinsic and extrinsic. Intrinsic aging results from cellular processes that occur over time and is influenced by genetics. Such aging is characterized by decreased function of keratinocytes and fibroblasts, intra- and extracellular accumulation of by-products, reduced function of sirtuins (proteins that regulate cell metabolism and aging), mitochondrial damage, and loss of telomeres.

Extrinsic aging results from environmental exposures that engender cell damage, including UV light, infrared and radiation exposure, air pollution, smoking, tanning beds, alcohol and drug usage, stress, and poor diet. Extrinsic aging occurs as a result of intersecting processes caused by free radicals, DNA damage, glycation, inflammation, and other actions by the immune system. Generally, these factors can be partially mitigated through behavioral change. As much as 80% of facial aging can be ascribed to sun exposure.4 Several mechanisms through which sun exposure promotes aging have been well characterized. DNA damage results when UV light induces covalent bonds between nucleic acid base pairs and forms thymine dimers, which can alter tumor suppressor gene p53 function, thereby increasing the risk of cutaneous cancers and aging.5 UV exposure also yields free radicals that create damaging oxidative stress,6 which can activate the arachidonic acid pathway resulting in inflammation.7 Other skin aging mechanisms are not as well understood.
 

The cellular role in aging: Keratinocytes and fibroblasts

Keratinocyte cells found in layers that resemble the brick-and-mortar structure of a brick wall compose the epidermis. Each epidermal layer exhibits specific functional roles and characteristics. The top layer of the epidermis, known as the stratum corneum, is notable because it forms the skin barrier. This protective barrier contains cross-linked proteins for strength, antioxidants to protect the cells from free radicals, a bilayer lipid membrane layer to prevent water evaporation from the cells surface, immune cells, antimicrobial peptides, and a natural microbiome. Damage to any layer of the epidermis can unleash a cascade of events that can lead to increased cutaneous aging.

The dermis is composed of fibroblast cells, which synthesize collagen, elastin, hyaluronic acid, heparan sulfate, and other glycosaminoglycans that keep the skin smooth, strong, and healthy. Collagen confers strength, elastin provides elasticity, and the glycosaminoglycans such as hyaluronic acid, heparan sulfate, and dermatan sulfate bind water, impart volume to the skin, and provide support for important cell-to-cell communication.

When keratinocytes and fibroblasts age, they may no longer respond to cellular signals such as growth factors. The primary aim of any antiaging skin care regimen is to protect and rejuvenate these key skin cells.

Cellular damage that contributes to skin aging

The accumulated damage from intrinsic and extrinsic factors yields keratinocytes and fibroblasts that fail to produce important cellular components as well as they did when they were younger. Cellular factors that age cells include nuclear DNA damage, mitochondrial DNA damage, diminished lysosomal function, structural impairment of proteins, and damage to cell membranes. This harm occurs because of the direct effects of UV radiation, pollution, toxins, free radicals (oxidation), glycation, and inflammation.

Preventing and treating DNA damage

DNA damage presents as thymine-thymine dimers, pyrimidine-pyrimidine dimers, impaired telomeres, or other mutations. Broad-spectrum sunscreens and sun avoidance are important steps in preventing DNA damage induced from exposure to UV radiation. Other cosmeceutical agents have been designed to hinder the effects of UV radiation or to foster DNA repair. Besides sunscreen, the key members of the dermatologic armamentarium against DNA damage are various antioxidants. Data have been gathered over the last few decades that support the protective effects of antioxidants such as polypodium leucotomos,ascorbic acid, and green tea. Other antioxidants are associated with less data, but hypothetically should deliver similar benefits.

 

 

Polypodium leucotomos (PL), an oral extract derived from ferns, has been demonstrated to display photoprotective effects at an oral dose of 7.5 mg. PL has consistently exhibited antitumor and skin protective effects.8 A 2004 study in humans revealed that two oral doses of PL contributed to a significant reduction in DNA damage after UV exposure,9 and a 2017 study showed that PL protected skin DNA from UVB.10 Although PL has been linked to topical benefits, it is the oral form that is most often used to protect skin.

Ascorbic acid, also known as vitamin C, has been amply demonstrated to confer benefits when given both orally and topically. An acidic environment is necessary for optimal absorption. Topical application of ascorbic acid, along with vitamin E and ferulic acid, has been demonstrated to decrease the formation of thymine dimers.11 Unlike other antioxidants, ascorbic acid also stimulates procollagen genes in fibroblasts to increase collagen synthesis.12

Madeleine_Steinbach/Thinkstock
Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties. Curcumin is the principal curcuminoid of turmeric, pictured here.
Niacinamide, also known as nicotinamide, is an integral part of the niacin coenzymes nicotinamide adenine dinucleotide (NAD+), nicotinamide adenine dinucleotide phosphate (NADP+), and their reduced forms NADH and NADPH. These contribute to DNA production and repair and are involved in multiple other important enzymatic reactions. Topical niacinamide has been demonstrated to play a role in DNA repair13 by providing cells with the energy that the DNA repair enzymes need to unwind the DNA strand, replace the nucleosides, and rewind the strand. Specifically, niacinamide is known to enhance DNA excision repair and repair of UVB-induced cyclobutane pyrimidine dimers and UVA-induced 8-oxo-7,8-dihydro-2´-deoxyguanosine.14 Niacinamide is used topically because oral forms of niacin have been found to provoke flushing.

EpiGalloCatechin-3-O-Gallate (also known as EGCG), the primary active constituent of green tea, has been demonstrated to induce IL-12 to increase the production of enzymes that repair UV-induced DNA damage.15 The proven photoprotective effects of topical and oral green tea include reducing UV-induced erythema, decreasing sunburn cell formation, and attenuating DNA damage.16
 

Preventing and treating mitochondrial DNA damage

UV radiation elicits mitochondrial DNA damage known as the “common deletion.”17 Damaged mitochondria produce harmful free radicals known as reactive oxygen species. Mitochondria damage caused by ROS decreases the mitochondria’s ability to generate ATP energy, which is necessary for DNA repair and other cellular processes.

Free radicals and UV radiation damage mitochondria, as does normal cellular metabolism. The range of damage includes mitochondrial DNA impairment, loss of mitochondrial enzymes, and decreased ATP production. This leads to less energy for DNA repair and other reparative processes. While there is no established way to reduce mitochondrial damage once it has occurred, several research initiatives to achieve this end are underway. Currently, protecting the mitochondria from harm with sunscreens and antioxidants is the best option.

Antioxidants are effective in preventing the damaging effects of free radicals on vulnerable mitochondria. As a component of the mitochondrial respiratory chain and an antioxidant itself, coenzyme Q10 is particularly useful in this role. CoQ10 is available in both oral and topical formulations. Oral forms should be taken only in the morning because of a caffeine-like effect. Topical forms of CoQ10 have a dark yellow color that may be unappealing to patients. Polypodium leucotomos has been shown to lower the number of common deletions found in the mitochondria of irradiated keratinocytes and fibroblasts.18 The oral form is recommended. Another potent antioxidant, curcumin, is being studied for mitochondrial protective properties.19 Its strong yellow color and smell render it better suited for oral use although many companies are trying to develop cosmetically elegant topical formulations.
 

Scavenging free radicals

Ultraviolet light, pollution, and other insults engender free radical formation. Even sunscreen use has been linked to increased production of free radicals. Free radicals, also known as reactive oxygen species, harm cells in many ways including mitochondrial damage, DNA mutations, glycation, lysosomal damage, and oxidation of important lipids and other cellular components such as proteins. Antioxidants present various beneficial effects including scavenging free radicals, decreasing activation of mitogen-activated protein kinases, chelation of copper required by tyrosinase, and suppression of inflammatory factors, such as nuclear factor (NF)-kB.20. Antioxidants are essential in preventing aged skin.

In summary, skin aging has many causes. Although they are not all understood, some of the processes have been elucidated. Next month, this column will focus on the prevention and treatment of inflammation and glycation, as well as reversing the effects of aging on skin cells.

Dr. Leslie S. Baumann

Dr. Baumann is a private practice dermatologist, researcher, author, and entrepreneur who practices in Miami. She founded the Cosmetic Dermatology Center at the University of Miami in 1997. Dr. Baumann wrote two textbooks: “Cosmetic Dermatology: Principles and Practice” (New York: McGraw-Hill, 2002) and “Cosmeceuticals and Cosmetic Ingredients” (New York: McGraw-Hill, 2014). She also wrote a New York Times Best Sellers book for consumers, “The Skin Type Solution” (New York: Bantam Dell, 2006). Dr. Baumann has received funding for advisory boards and/or clinical research trials from Allergan, Evolus, Galderma, and Revance. She is the founder and CEO of Skin Type Solutions Franchise Systems LLC.

References

1. Baumann, Leslie S. “Cosmeceuticals and cosmetic ingredients” (New York: McGraw-Hill Education / Medical, 2014).

2. Baumann, Leslie S. The Baumann Skin Typing System in “Textbook of Aging Skin” (New York: Springer-Verlag Berlin Heidelberg, 2017). pp. 1579-94.

3. Storm A et al. J Am Acad Dermatol. 2008 Dec;59(6):975-80.

4. Uitto J. N Engl J Med. 1997 Nov 13;337(20):1463-5.

5. Tornaletti S et al. Science. 1994;263(5152):1436-8.

6. Bickers D et al. J. Investig. Dermatol. 2006;126(12):2565-75.

7. Yaar M et al. Br J Dermatol. 2007 Nov;157(5):874-87.

8. Parrado C et al. Int J Mol Sci. 2016 Jun 29;17(7). pii: E1026.

9. Middelkamp-Hup MA et al. J Am Acad Dermatol. 2004 Dec;51(6):910-8.

10. Kohli I et al. J Am Acad Dermatol. 2017 Jul;77(1):33-41.

11. Murray JC et al. J Am Acad Dermatol. 2008;59(3):418-25.

12. Geesin JC et al. J Invest Dermatol. 1988 Apr;90(4):420-4.

13. Thompson BC et al. PLoS One. 2015 Feb 6;10(2):e0117491.

14. Surjana D et al. Carcinogenesis. 2013 May;34(5):1144-9.

15. Meeran SM et al. Cancer Res. 2006 May 15;66(10):5512-20.

16. Elmets CA et al. J Am Acad Dermatol. 2001 Mar;44(3):425-32.

17. Berneburg M et al. J Invest Dermatol. 2004 May;122(5):1277-83.

18. Villa A et al. J Am Acad Dermatol. 2010 Mar;62(3):511-3.

19. Trujillo J et al. Arch Pharm Chem Life Sci. 2014. doi: 10.1002/ardp.2014002662014.

20. Muthusam V et al. Arch Dermatol Res. 2010 Jan;302(1):5-17.

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Elevated CRP and mortality risk differs by gender, race

Article Type
Changed
Fri, 01/18/2019 - 17:16

 

– The relationship between elevated C-reactive protein concentrations and increased all-cause mortality risk varies by gender and by race/ethnicity, an analysis of national data showed.

“Opportunities exist to discuss the importance of this marker and the relationship with mortality risk,” study author M. Ryan Richardson said in an interview following the World Congress on Insulin Resistance, Diabetes & Cardiovascular Disease. “Although we do not fully understand all of the mechanisms that underlie this harmful relationship, our results add to the limited evidence available to those working within the clinical setting.”

M. Ryan Richardson
A 2017 meta-analysis of 14 prospective studies examining C-reactive protein (CRP) and mortality suggests that elevated CRP levels can independently predict all-cause and cardiovascular mortality risk (Atherosclerosis. 2017 Apr;259:75-82), but there remains a paucity of evidence that examines the relationship between CRP and all-cause mortality risk according to gender and race/ethnicity. For the current analysis, Mr. Richardson, an instructor in the department of clinical and applied movement science at the University of North Florida, Jacksonville, and his associates drew from the 1999-2006 National Health and Nutrition Examination Survey, a nationally representative sample of U.S. adults stratified by gender and race/ethnicity. Elevated CRP was defined as greater than 3 mg/L to 10 mg/L, and the dependent variable of interest was all-cause mortality. The National Center for Health Statistics linked death records from the National Death Index to the NHANES participants’ sequence numbers.

A total of 4,383 adults between the ages of 30 and 79 years were included in the analysis. After the researchers adjusted for age, race, education, smoking, alcohol consumption, cardiovascular disease, waist circumference, and aerobic physical activity, they observed a significantly higher risk for all-cause mortality in non-Hispanic black males (hazard ratio, 2.04) and Mexican-American females (HR, 2.24). “We were surprised that this relationship was also independent of measured waist circumference and any volume of reported aerobic physical activity, which are both acknowledged as strong mediator variables in this relationship,” Mr. Richardson said. The HR in non-Hispanic white males approached but did not reach statistical significance (HR, 1.32).

He acknowledged certain limitations of the study, including its cross-sectional design. “We cannot make causal inferences based on this data,” he said.

The researchers reported having no financial disclosures.

SOURCE: M. Ryan Richardson et al.

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– The relationship between elevated C-reactive protein concentrations and increased all-cause mortality risk varies by gender and by race/ethnicity, an analysis of national data showed.

“Opportunities exist to discuss the importance of this marker and the relationship with mortality risk,” study author M. Ryan Richardson said in an interview following the World Congress on Insulin Resistance, Diabetes & Cardiovascular Disease. “Although we do not fully understand all of the mechanisms that underlie this harmful relationship, our results add to the limited evidence available to those working within the clinical setting.”

M. Ryan Richardson
A 2017 meta-analysis of 14 prospective studies examining C-reactive protein (CRP) and mortality suggests that elevated CRP levels can independently predict all-cause and cardiovascular mortality risk (Atherosclerosis. 2017 Apr;259:75-82), but there remains a paucity of evidence that examines the relationship between CRP and all-cause mortality risk according to gender and race/ethnicity. For the current analysis, Mr. Richardson, an instructor in the department of clinical and applied movement science at the University of North Florida, Jacksonville, and his associates drew from the 1999-2006 National Health and Nutrition Examination Survey, a nationally representative sample of U.S. adults stratified by gender and race/ethnicity. Elevated CRP was defined as greater than 3 mg/L to 10 mg/L, and the dependent variable of interest was all-cause mortality. The National Center for Health Statistics linked death records from the National Death Index to the NHANES participants’ sequence numbers.

A total of 4,383 adults between the ages of 30 and 79 years were included in the analysis. After the researchers adjusted for age, race, education, smoking, alcohol consumption, cardiovascular disease, waist circumference, and aerobic physical activity, they observed a significantly higher risk for all-cause mortality in non-Hispanic black males (hazard ratio, 2.04) and Mexican-American females (HR, 2.24). “We were surprised that this relationship was also independent of measured waist circumference and any volume of reported aerobic physical activity, which are both acknowledged as strong mediator variables in this relationship,” Mr. Richardson said. The HR in non-Hispanic white males approached but did not reach statistical significance (HR, 1.32).

He acknowledged certain limitations of the study, including its cross-sectional design. “We cannot make causal inferences based on this data,” he said.

The researchers reported having no financial disclosures.

SOURCE: M. Ryan Richardson et al.

 

– The relationship between elevated C-reactive protein concentrations and increased all-cause mortality risk varies by gender and by race/ethnicity, an analysis of national data showed.

“Opportunities exist to discuss the importance of this marker and the relationship with mortality risk,” study author M. Ryan Richardson said in an interview following the World Congress on Insulin Resistance, Diabetes & Cardiovascular Disease. “Although we do not fully understand all of the mechanisms that underlie this harmful relationship, our results add to the limited evidence available to those working within the clinical setting.”

M. Ryan Richardson
A 2017 meta-analysis of 14 prospective studies examining C-reactive protein (CRP) and mortality suggests that elevated CRP levels can independently predict all-cause and cardiovascular mortality risk (Atherosclerosis. 2017 Apr;259:75-82), but there remains a paucity of evidence that examines the relationship between CRP and all-cause mortality risk according to gender and race/ethnicity. For the current analysis, Mr. Richardson, an instructor in the department of clinical and applied movement science at the University of North Florida, Jacksonville, and his associates drew from the 1999-2006 National Health and Nutrition Examination Survey, a nationally representative sample of U.S. adults stratified by gender and race/ethnicity. Elevated CRP was defined as greater than 3 mg/L to 10 mg/L, and the dependent variable of interest was all-cause mortality. The National Center for Health Statistics linked death records from the National Death Index to the NHANES participants’ sequence numbers.

A total of 4,383 adults between the ages of 30 and 79 years were included in the analysis. After the researchers adjusted for age, race, education, smoking, alcohol consumption, cardiovascular disease, waist circumference, and aerobic physical activity, they observed a significantly higher risk for all-cause mortality in non-Hispanic black males (hazard ratio, 2.04) and Mexican-American females (HR, 2.24). “We were surprised that this relationship was also independent of measured waist circumference and any volume of reported aerobic physical activity, which are both acknowledged as strong mediator variables in this relationship,” Mr. Richardson said. The HR in non-Hispanic white males approached but did not reach statistical significance (HR, 1.32).

He acknowledged certain limitations of the study, including its cross-sectional design. “We cannot make causal inferences based on this data,” he said.

The researchers reported having no financial disclosures.

SOURCE: M. Ryan Richardson et al.

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Key clinical point: Elevated CRP is linked to increased mortality risk in non-Hispanic black men and Mexican-American women.

Major finding: The risk for all-cause mortality was significantly higher in non-Hispanic black men and in Mexican-American females (HR of 2.04 and 2.24, respectively).

Study details: An analysis of 4,383 adults who participated in NHANES 1999-2006.

Disclosures: The researchers reported having no financial disclosures.

Source: M. Ryan Richardson et al.

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Novel metabolic biomarkers linked to CHD

Clinical value uncertain
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– Low levels of four phosphatidylcholines – essential components of cell membranes – predict the risk of incident coronary heart disease about as well as body mass index does, according to an analysis presented at the American Heart Association scientific sessions.

The findings come from the BiomarCaRE consortium (Biomarker for Cardiovascular Risk Assessment in Europe), a European Union–funded effort to evaluate the predictive value of new and existing biomarkers for cardiovascular disease.

The new findings “demonstrate the value of metabolomics for biomarker discovery and improved risk stratification,” said lead investigator Tanja Zeller, PhD, of the department of general and interventional cardiology, University Heart Center Hamburg (Germany).

Dr. Tanja Zeller
The team reviewed blood work from 4,157 women and 6,584 men who had been followed by the consortium for a median of 13.9 years, but ranging out to almost 30 years. They were in their 50s, on average; 20.2% experienced new-onset coronary heart disease, which was fatal in 6.3%.

A total of 141 metabolites were detected by mass spectrometry using the Biocrates Absolute IDQ p180 assay. After adjustment for body mass index, blood pressure, cholesterol level, hypertension, and other known coronary heart disease (CHD) risk factors, four metabolites – all phosphatidylcholines (PCs) – showed independent predictive value for incident CHD, with low levels associated with higher CHD risk. The effect was greatest among women.

Phosphatidylcholines are a class of phospholipids derived from egg yolks, soybeans, and other foods that play an essential role in cell membrane function, among other things. They are thought to have anti-inflammatory effects, Dr. Zeller said.

The investigators found that lower levels of four in particular – PC ae C40:6; PC ae C38:6; PC aa C38:5; and PC aa C38:6 – increase the risk of incident CHD, with statistically significant hazard ratios ranging from 1.09 to 1.13, similar to body mass index, but lower than for diabetes and total cholesterol level.

Dr. Zeller said the team couldn’t adjust for lipid-lowering medications and diet, both of which might have affected levels, because information was not available for the subjects. There have been suggestions in the literature that higher levels of PCs are associated with a lower risk of Alzheimer’s disease, cognitive impairment, diabetes, and other diseases, but supplementation trials have been mostly negative.

BiomarCaRE is funded by the European Union. The investigators had no relevant financial disclosures.

Body

 

BiomarCaRE and other studies offer us a unique opportunity to integrate metabolomics with genetic and other biomarkers to really understand the systems biology of disease.

But there are many questions to answer before we start measuring phosphatidylcholines. How do these biomarkers add to clinical risk prediction in our patients? While the magnitude of effect was good for a biomarker, it did not meet the strength of strong cardiovascular risk factors, including total cholesterol. Also, the investigators were careful to adjust for confounders and were able to show independent association, but they did not address incremental risk prediction.

And would measuring these metabolites change what we do for our patients? Are these pathways modifiable? In the absence of something to modify the pathway, risk prediction may be less significant.

Even so, metabolomics holds great promise in identifying biological pathways and understanding heterogeneity in medication and other effects, and advancing our efforts in precision medicine and patient care.

Svati Shah, MD , is with the department of cardiology at Duke University, Durham, N.C. She holds a patent on an unrelated metabolomics finding, and a research grant from Bristol-Myers Squibb. She also is an adviser for Biosense Webster. Dr. Shah was the discussant for the study presentation.

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Body

 

BiomarCaRE and other studies offer us a unique opportunity to integrate metabolomics with genetic and other biomarkers to really understand the systems biology of disease.

But there are many questions to answer before we start measuring phosphatidylcholines. How do these biomarkers add to clinical risk prediction in our patients? While the magnitude of effect was good for a biomarker, it did not meet the strength of strong cardiovascular risk factors, including total cholesterol. Also, the investigators were careful to adjust for confounders and were able to show independent association, but they did not address incremental risk prediction.

And would measuring these metabolites change what we do for our patients? Are these pathways modifiable? In the absence of something to modify the pathway, risk prediction may be less significant.

Even so, metabolomics holds great promise in identifying biological pathways and understanding heterogeneity in medication and other effects, and advancing our efforts in precision medicine and patient care.

Svati Shah, MD , is with the department of cardiology at Duke University, Durham, N.C. She holds a patent on an unrelated metabolomics finding, and a research grant from Bristol-Myers Squibb. She also is an adviser for Biosense Webster. Dr. Shah was the discussant for the study presentation.

Body

 

BiomarCaRE and other studies offer us a unique opportunity to integrate metabolomics with genetic and other biomarkers to really understand the systems biology of disease.

But there are many questions to answer before we start measuring phosphatidylcholines. How do these biomarkers add to clinical risk prediction in our patients? While the magnitude of effect was good for a biomarker, it did not meet the strength of strong cardiovascular risk factors, including total cholesterol. Also, the investigators were careful to adjust for confounders and were able to show independent association, but they did not address incremental risk prediction.

And would measuring these metabolites change what we do for our patients? Are these pathways modifiable? In the absence of something to modify the pathway, risk prediction may be less significant.

Even so, metabolomics holds great promise in identifying biological pathways and understanding heterogeneity in medication and other effects, and advancing our efforts in precision medicine and patient care.

Svati Shah, MD , is with the department of cardiology at Duke University, Durham, N.C. She holds a patent on an unrelated metabolomics finding, and a research grant from Bristol-Myers Squibb. She also is an adviser for Biosense Webster. Dr. Shah was the discussant for the study presentation.

Title
Clinical value uncertain
Clinical value uncertain

 

– Low levels of four phosphatidylcholines – essential components of cell membranes – predict the risk of incident coronary heart disease about as well as body mass index does, according to an analysis presented at the American Heart Association scientific sessions.

The findings come from the BiomarCaRE consortium (Biomarker for Cardiovascular Risk Assessment in Europe), a European Union–funded effort to evaluate the predictive value of new and existing biomarkers for cardiovascular disease.

The new findings “demonstrate the value of metabolomics for biomarker discovery and improved risk stratification,” said lead investigator Tanja Zeller, PhD, of the department of general and interventional cardiology, University Heart Center Hamburg (Germany).

Dr. Tanja Zeller
The team reviewed blood work from 4,157 women and 6,584 men who had been followed by the consortium for a median of 13.9 years, but ranging out to almost 30 years. They were in their 50s, on average; 20.2% experienced new-onset coronary heart disease, which was fatal in 6.3%.

A total of 141 metabolites were detected by mass spectrometry using the Biocrates Absolute IDQ p180 assay. After adjustment for body mass index, blood pressure, cholesterol level, hypertension, and other known coronary heart disease (CHD) risk factors, four metabolites – all phosphatidylcholines (PCs) – showed independent predictive value for incident CHD, with low levels associated with higher CHD risk. The effect was greatest among women.

Phosphatidylcholines are a class of phospholipids derived from egg yolks, soybeans, and other foods that play an essential role in cell membrane function, among other things. They are thought to have anti-inflammatory effects, Dr. Zeller said.

The investigators found that lower levels of four in particular – PC ae C40:6; PC ae C38:6; PC aa C38:5; and PC aa C38:6 – increase the risk of incident CHD, with statistically significant hazard ratios ranging from 1.09 to 1.13, similar to body mass index, but lower than for diabetes and total cholesterol level.

Dr. Zeller said the team couldn’t adjust for lipid-lowering medications and diet, both of which might have affected levels, because information was not available for the subjects. There have been suggestions in the literature that higher levels of PCs are associated with a lower risk of Alzheimer’s disease, cognitive impairment, diabetes, and other diseases, but supplementation trials have been mostly negative.

BiomarCaRE is funded by the European Union. The investigators had no relevant financial disclosures.

 

– Low levels of four phosphatidylcholines – essential components of cell membranes – predict the risk of incident coronary heart disease about as well as body mass index does, according to an analysis presented at the American Heart Association scientific sessions.

The findings come from the BiomarCaRE consortium (Biomarker for Cardiovascular Risk Assessment in Europe), a European Union–funded effort to evaluate the predictive value of new and existing biomarkers for cardiovascular disease.

The new findings “demonstrate the value of metabolomics for biomarker discovery and improved risk stratification,” said lead investigator Tanja Zeller, PhD, of the department of general and interventional cardiology, University Heart Center Hamburg (Germany).

Dr. Tanja Zeller
The team reviewed blood work from 4,157 women and 6,584 men who had been followed by the consortium for a median of 13.9 years, but ranging out to almost 30 years. They were in their 50s, on average; 20.2% experienced new-onset coronary heart disease, which was fatal in 6.3%.

A total of 141 metabolites were detected by mass spectrometry using the Biocrates Absolute IDQ p180 assay. After adjustment for body mass index, blood pressure, cholesterol level, hypertension, and other known coronary heart disease (CHD) risk factors, four metabolites – all phosphatidylcholines (PCs) – showed independent predictive value for incident CHD, with low levels associated with higher CHD risk. The effect was greatest among women.

Phosphatidylcholines are a class of phospholipids derived from egg yolks, soybeans, and other foods that play an essential role in cell membrane function, among other things. They are thought to have anti-inflammatory effects, Dr. Zeller said.

The investigators found that lower levels of four in particular – PC ae C40:6; PC ae C38:6; PC aa C38:5; and PC aa C38:6 – increase the risk of incident CHD, with statistically significant hazard ratios ranging from 1.09 to 1.13, similar to body mass index, but lower than for diabetes and total cholesterol level.

Dr. Zeller said the team couldn’t adjust for lipid-lowering medications and diet, both of which might have affected levels, because information was not available for the subjects. There have been suggestions in the literature that higher levels of PCs are associated with a lower risk of Alzheimer’s disease, cognitive impairment, diabetes, and other diseases, but supplementation trials have been mostly negative.

BiomarCaRE is funded by the European Union. The investigators had no relevant financial disclosures.

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Key clinical point: Low levels of four phosphatidylcholines – essential components of cell membranes – predict the risk of incident coronary heart disease about as well as body mass index.

Major finding: Lower levels of four in particular – PC ae C40:6; PC ae C38:6; PC aa C38:5; and PC aa C38:6 – increase the risk of incident CHD, with hazard ratios ranging from 1.09 to 1.13.

Data source: More than 10,000 subjects in the BiomarCaRE consortium.

Disclosures: BiomarCaRE is funded by the European Union. The investigators had no relevant financial disclosures.

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FDA approves first follow-on short-acting insulin product using abbreviated approval pathway

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Tue, 05/03/2022 - 15:21

 

The Food and Drug Administration has approved Sanofi’s insulin lispro injections (Admelog) for improved blood sugar control in adults and children aged 3 years and older with type 1 and type 2 diabetes mellitus, according to a news release from the FDA.

Insulin lispro injections are to be administered subcutaneously by injection, infusion via an insulin pump, or intravenously. Doses should be individualized based on route of administration and patients’ individual metabolic needs. All diabetes patients should regularly monitor their blood sugar levels and insulin regimens should be exclusively modified under medical supervision.

“With today’s approval, we are providing an important short-acting insulin option for patients that meets our standards for safety and effectiveness,” Mary T. Thanh Hai, MD, deputy director of the Office of New Drug Evaluation II in the FDA’s Center for Drug Evaluation and Research, said in a statement.

Admelog, a biosimilar to Eli Lilly’s Humalog, was approved as a follow-on product based on the prior approval of Humalog. This allowed insulin lispro injections to be passed through the abbreviated approval pathway under the Federal Food, Drug, and Cosmetic Act, formally known as the 505(b)(2) pathway. The makers of insulin lispro found it was scientifically justified to use the previous safety and effectiveness data from the approval of Humalog to support the approval of insulin lispro injections. In addition to the Humalog data, the insulin lispro injection data included findings from two phase 3 clinical trials, each of which comprised about 500 diabetes patients. Using this abbreviated pathway can reduce the costs of drug development significantly, allowing new products to be offered to patients at lower prices.

“One of my key policy efforts is increasing competition in the market for prescription drugs and helping facilitate the entry of lower-cost alternatives. This is particularly important for drugs like insulin that are taken by millions of Americans every day for a patient’s lifetime to manage a chronic disease,” FDA Commissioner Scott Gottlieb, MD, said in a statement “In the coming months, we’ll be taking additional policy steps to help to make sure patients continue to benefit from improved access to lower cost, safe and effective alternatives to brand name drugs approved through the agency’s abbreviated pathways.”

Insulin lispro injections are short-acting insulin products that can help improve blood sugar levels in diabetes patients. This can be useful in controlling blood sugar levels after eating. This contrasts with long-acting insulin products, which are intended to control background insulin levels between meals. The blood sugar control needs of type 1 and type 2 diabetes patients are unique. Type 1 patients require both short- and long-term controls, while some type 2 patients may never need a short-acting insulin product. Because of these differences, providing insulin lispro injections as a blood sugar control method may be particularly useful to type 1 diabetes patients who need to control mealtime blood sugar levels.

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The Food and Drug Administration has approved Sanofi’s insulin lispro injections (Admelog) for improved blood sugar control in adults and children aged 3 years and older with type 1 and type 2 diabetes mellitus, according to a news release from the FDA.

Insulin lispro injections are to be administered subcutaneously by injection, infusion via an insulin pump, or intravenously. Doses should be individualized based on route of administration and patients’ individual metabolic needs. All diabetes patients should regularly monitor their blood sugar levels and insulin regimens should be exclusively modified under medical supervision.

“With today’s approval, we are providing an important short-acting insulin option for patients that meets our standards for safety and effectiveness,” Mary T. Thanh Hai, MD, deputy director of the Office of New Drug Evaluation II in the FDA’s Center for Drug Evaluation and Research, said in a statement.

Admelog, a biosimilar to Eli Lilly’s Humalog, was approved as a follow-on product based on the prior approval of Humalog. This allowed insulin lispro injections to be passed through the abbreviated approval pathway under the Federal Food, Drug, and Cosmetic Act, formally known as the 505(b)(2) pathway. The makers of insulin lispro found it was scientifically justified to use the previous safety and effectiveness data from the approval of Humalog to support the approval of insulin lispro injections. In addition to the Humalog data, the insulin lispro injection data included findings from two phase 3 clinical trials, each of which comprised about 500 diabetes patients. Using this abbreviated pathway can reduce the costs of drug development significantly, allowing new products to be offered to patients at lower prices.

“One of my key policy efforts is increasing competition in the market for prescription drugs and helping facilitate the entry of lower-cost alternatives. This is particularly important for drugs like insulin that are taken by millions of Americans every day for a patient’s lifetime to manage a chronic disease,” FDA Commissioner Scott Gottlieb, MD, said in a statement “In the coming months, we’ll be taking additional policy steps to help to make sure patients continue to benefit from improved access to lower cost, safe and effective alternatives to brand name drugs approved through the agency’s abbreviated pathways.”

Insulin lispro injections are short-acting insulin products that can help improve blood sugar levels in diabetes patients. This can be useful in controlling blood sugar levels after eating. This contrasts with long-acting insulin products, which are intended to control background insulin levels between meals. The blood sugar control needs of type 1 and type 2 diabetes patients are unique. Type 1 patients require both short- and long-term controls, while some type 2 patients may never need a short-acting insulin product. Because of these differences, providing insulin lispro injections as a blood sugar control method may be particularly useful to type 1 diabetes patients who need to control mealtime blood sugar levels.

 

The Food and Drug Administration has approved Sanofi’s insulin lispro injections (Admelog) for improved blood sugar control in adults and children aged 3 years and older with type 1 and type 2 diabetes mellitus, according to a news release from the FDA.

Insulin lispro injections are to be administered subcutaneously by injection, infusion via an insulin pump, or intravenously. Doses should be individualized based on route of administration and patients’ individual metabolic needs. All diabetes patients should regularly monitor their blood sugar levels and insulin regimens should be exclusively modified under medical supervision.

“With today’s approval, we are providing an important short-acting insulin option for patients that meets our standards for safety and effectiveness,” Mary T. Thanh Hai, MD, deputy director of the Office of New Drug Evaluation II in the FDA’s Center for Drug Evaluation and Research, said in a statement.

Admelog, a biosimilar to Eli Lilly’s Humalog, was approved as a follow-on product based on the prior approval of Humalog. This allowed insulin lispro injections to be passed through the abbreviated approval pathway under the Federal Food, Drug, and Cosmetic Act, formally known as the 505(b)(2) pathway. The makers of insulin lispro found it was scientifically justified to use the previous safety and effectiveness data from the approval of Humalog to support the approval of insulin lispro injections. In addition to the Humalog data, the insulin lispro injection data included findings from two phase 3 clinical trials, each of which comprised about 500 diabetes patients. Using this abbreviated pathway can reduce the costs of drug development significantly, allowing new products to be offered to patients at lower prices.

“One of my key policy efforts is increasing competition in the market for prescription drugs and helping facilitate the entry of lower-cost alternatives. This is particularly important for drugs like insulin that are taken by millions of Americans every day for a patient’s lifetime to manage a chronic disease,” FDA Commissioner Scott Gottlieb, MD, said in a statement “In the coming months, we’ll be taking additional policy steps to help to make sure patients continue to benefit from improved access to lower cost, safe and effective alternatives to brand name drugs approved through the agency’s abbreviated pathways.”

Insulin lispro injections are short-acting insulin products that can help improve blood sugar levels in diabetes patients. This can be useful in controlling blood sugar levels after eating. This contrasts with long-acting insulin products, which are intended to control background insulin levels between meals. The blood sugar control needs of type 1 and type 2 diabetes patients are unique. Type 1 patients require both short- and long-term controls, while some type 2 patients may never need a short-acting insulin product. Because of these differences, providing insulin lispro injections as a blood sugar control method may be particularly useful to type 1 diabetes patients who need to control mealtime blood sugar levels.

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Clinical trial: The Role of the Robotic Platform in Inguinal Hernia Repair Surgery

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Wed, 01/02/2019 - 10:03

 

The Role of the Robotic Platform in Inguinal Hernia Repair Surgery is an interventional trial currently recruiting patients who require inguinal hernia repair surgery.

The trial will compare postoperative pain in patients undergoing laparoscopic inguinal hernia surgery repair or robotic inguinal hernia repair surgery. The laparoscopic approach has been used frequently and has several advantages. However, it has several disadvantages that the robotic approach may address. As such, the study investigators have hypothesized that the robotic approach will result in less postoperative pain than the laparoscopic approach.

Inclusion criteria for the study include having had no prior open abdominal surgery at or below the umbilicus or preperitoneal mesh placement, presenting for primary or recurrent unilateral inguinal hernia repair, being at least 21 years old, and having a body mass index less than or equal to 40 kg/m2. Patients will be excluded if they have a need for open inguinal hernia repair, present for evaluation of bilateral inguinal hernias, require surgical repair of a strangulated inguinal hernia, have liver disease or end-stage renal disease, or cannot give informed consent.

The primary outcome measure is the difference in postoperative pain between patients who undergo robotic inguinal hernia repair and those who undergo laparoscopic inguinal hernia repair during the 2 years following surgery. Secondary outcome measures include differences in surgeon ergonomics between the two approaches, institution cost analysis, and long-term recurrence rate differences, all within 2 years of surgery.

The study will end in May 2019. About 100 people are expected to be included in the final analysis.

Find more information on the study page at Clinicaltrials.gov.

SOURCE: Clinicaltrials.gov. NCT02816658.

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The Role of the Robotic Platform in Inguinal Hernia Repair Surgery is an interventional trial currently recruiting patients who require inguinal hernia repair surgery.

The trial will compare postoperative pain in patients undergoing laparoscopic inguinal hernia surgery repair or robotic inguinal hernia repair surgery. The laparoscopic approach has been used frequently and has several advantages. However, it has several disadvantages that the robotic approach may address. As such, the study investigators have hypothesized that the robotic approach will result in less postoperative pain than the laparoscopic approach.

Inclusion criteria for the study include having had no prior open abdominal surgery at or below the umbilicus or preperitoneal mesh placement, presenting for primary or recurrent unilateral inguinal hernia repair, being at least 21 years old, and having a body mass index less than or equal to 40 kg/m2. Patients will be excluded if they have a need for open inguinal hernia repair, present for evaluation of bilateral inguinal hernias, require surgical repair of a strangulated inguinal hernia, have liver disease or end-stage renal disease, or cannot give informed consent.

The primary outcome measure is the difference in postoperative pain between patients who undergo robotic inguinal hernia repair and those who undergo laparoscopic inguinal hernia repair during the 2 years following surgery. Secondary outcome measures include differences in surgeon ergonomics between the two approaches, institution cost analysis, and long-term recurrence rate differences, all within 2 years of surgery.

The study will end in May 2019. About 100 people are expected to be included in the final analysis.

Find more information on the study page at Clinicaltrials.gov.

SOURCE: Clinicaltrials.gov. NCT02816658.

 

The Role of the Robotic Platform in Inguinal Hernia Repair Surgery is an interventional trial currently recruiting patients who require inguinal hernia repair surgery.

The trial will compare postoperative pain in patients undergoing laparoscopic inguinal hernia surgery repair or robotic inguinal hernia repair surgery. The laparoscopic approach has been used frequently and has several advantages. However, it has several disadvantages that the robotic approach may address. As such, the study investigators have hypothesized that the robotic approach will result in less postoperative pain than the laparoscopic approach.

Inclusion criteria for the study include having had no prior open abdominal surgery at or below the umbilicus or preperitoneal mesh placement, presenting for primary or recurrent unilateral inguinal hernia repair, being at least 21 years old, and having a body mass index less than or equal to 40 kg/m2. Patients will be excluded if they have a need for open inguinal hernia repair, present for evaluation of bilateral inguinal hernias, require surgical repair of a strangulated inguinal hernia, have liver disease or end-stage renal disease, or cannot give informed consent.

The primary outcome measure is the difference in postoperative pain between patients who undergo robotic inguinal hernia repair and those who undergo laparoscopic inguinal hernia repair during the 2 years following surgery. Secondary outcome measures include differences in surgeon ergonomics between the two approaches, institution cost analysis, and long-term recurrence rate differences, all within 2 years of surgery.

The study will end in May 2019. About 100 people are expected to be included in the final analysis.

Find more information on the study page at Clinicaltrials.gov.

SOURCE: Clinicaltrials.gov. NCT02816658.

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Quick Byte: Take a seat

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Fri, 09/14/2018 - 11:56
Enhancing patient satisfaction

 

A survey of 305 inpatients showed that patients who reported that at least one provider sat down while caring for them were more likely to feel that their provider spent appropriate time with them and that their provider kept them well informed. The authors concluded that sitting down at a patient’s bedside improves some aspects of patients’ and families’ experience of their hospital care, and should be included in hospital efforts to improve the patient experience.

Reference

1. Adebusuyi OA et al. Does sitting enhance patient satisfaction in the hospital? [abstract]. J Hosp Med. 2017; 12 (suppl 2). Accessed Aug. 7, 2017.

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Enhancing patient satisfaction

 

A survey of 305 inpatients showed that patients who reported that at least one provider sat down while caring for them were more likely to feel that their provider spent appropriate time with them and that their provider kept them well informed. The authors concluded that sitting down at a patient’s bedside improves some aspects of patients’ and families’ experience of their hospital care, and should be included in hospital efforts to improve the patient experience.

Reference

1. Adebusuyi OA et al. Does sitting enhance patient satisfaction in the hospital? [abstract]. J Hosp Med. 2017; 12 (suppl 2). Accessed Aug. 7, 2017.

 

A survey of 305 inpatients showed that patients who reported that at least one provider sat down while caring for them were more likely to feel that their provider spent appropriate time with them and that their provider kept them well informed. The authors concluded that sitting down at a patient’s bedside improves some aspects of patients’ and families’ experience of their hospital care, and should be included in hospital efforts to improve the patient experience.

Reference

1. Adebusuyi OA et al. Does sitting enhance patient satisfaction in the hospital? [abstract]. J Hosp Med. 2017; 12 (suppl 2). Accessed Aug. 7, 2017.

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