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Corticosteroids found to curb progression in community-acquired pneumonia

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Thu, 09/29/2022 - 14:44

Adults hospitalized with community-acquired pneumonia were less likely to need mechanical ventilation after treatment with corticosteroids, but mortality was unaffected, based on data from a meta-analysis of nearly 4,000 patients.

Community-acquired pneumonia (CAP) remains a leading cause of morbidity and mortality in adults, but no routinely used strategies are associated with improvements in mortality, disease severity, or length of hospital stay, wrote Naveed Saleem, MSc, of University College, London, and colleagues.

Corticosteroids are recommended for various infectious diseases including bacterial meningitis, septic shock, and tuberculosis, as well as for COVID-19 pneumonia, because of their ability to reduce systemic inflammation, but have not been well studied in CAP, they noted.

In a study published in Chest, the researchers identified 16 randomized, controlled trials that compared the use of corticosteroids to standard care in CAP management. Of these, 9 were sponsored by pharmaceutical companies, 4 were open-label, and 11 were double-blind. The primary outcome was all-cause mortality; secondary outcomes were ICU admission, mechanical ventilation, treatment failure, readmission, and adverse events.

Although corticosteroids had no significant impact on the primary outcome of all-cause mortality, their use was associated with a significant reduction in the need for mechanical ventilation (relative risk 0.51, P = .001). The relative risk for the primary outcome of all-cause mortality was 0.85 (P = .17). Corticosteroids had no significant impact on the other secondary outcomes of ICU admission (RR 0.66), treatment failure (RR 0.78), and the incidence of adverse events (RR 1.10). However, data from five studies showed an increase in hospital admission rates for patients who received corticosteroids (RR 1.20, P = .008).

Overall, the risk of total adverse events was similar in patients who received corticosteroids vs. standard of care (55.8% vs. 48.5%). However, 27.2% of patients reported at least one adverse event related to corticosteroids. Incidence of most adverse events including gastrointestinal bleeding and secondary infections were similar between the groups, but patients who received corticosteroids had a significantly higher incidence of new-onset hyperglycemia compared to standard care patients (17.6% vs. 9.5%, P = .0001).

“Despite an increased risk of hyperglycemia associated with steroid use, we found no association between corticosteroid use and infectious complications,” the researchers wrote in their discussion. The optimal type, dose, and duration of corticosteroids for hospitalized CAP patients has yet to be determined, and the type of corticosteroid may affect outcomes, they added.

The study findings were limited by several factors, including the consideration of hospitalized patients only, not those in the community, and by the inability to adjust for differing diagnostic criteria, illness severity at baseline, or other therapeutic interventions, the researchers noted. Larger studies are needed to assess mortality benefit, and longer follow-up is needed to identify causes of readmission, they said. However, the results suggest that corticosteroids may be useful for preventing the need for mechanical ventilation in hospitalized patients with bacterial pneumonia, they concluded.

The study received no outside funding. The researchers had no financial conflicts to disclose.

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Adults hospitalized with community-acquired pneumonia were less likely to need mechanical ventilation after treatment with corticosteroids, but mortality was unaffected, based on data from a meta-analysis of nearly 4,000 patients.

Community-acquired pneumonia (CAP) remains a leading cause of morbidity and mortality in adults, but no routinely used strategies are associated with improvements in mortality, disease severity, or length of hospital stay, wrote Naveed Saleem, MSc, of University College, London, and colleagues.

Corticosteroids are recommended for various infectious diseases including bacterial meningitis, septic shock, and tuberculosis, as well as for COVID-19 pneumonia, because of their ability to reduce systemic inflammation, but have not been well studied in CAP, they noted.

In a study published in Chest, the researchers identified 16 randomized, controlled trials that compared the use of corticosteroids to standard care in CAP management. Of these, 9 were sponsored by pharmaceutical companies, 4 were open-label, and 11 were double-blind. The primary outcome was all-cause mortality; secondary outcomes were ICU admission, mechanical ventilation, treatment failure, readmission, and adverse events.

Although corticosteroids had no significant impact on the primary outcome of all-cause mortality, their use was associated with a significant reduction in the need for mechanical ventilation (relative risk 0.51, P = .001). The relative risk for the primary outcome of all-cause mortality was 0.85 (P = .17). Corticosteroids had no significant impact on the other secondary outcomes of ICU admission (RR 0.66), treatment failure (RR 0.78), and the incidence of adverse events (RR 1.10). However, data from five studies showed an increase in hospital admission rates for patients who received corticosteroids (RR 1.20, P = .008).

Overall, the risk of total adverse events was similar in patients who received corticosteroids vs. standard of care (55.8% vs. 48.5%). However, 27.2% of patients reported at least one adverse event related to corticosteroids. Incidence of most adverse events including gastrointestinal bleeding and secondary infections were similar between the groups, but patients who received corticosteroids had a significantly higher incidence of new-onset hyperglycemia compared to standard care patients (17.6% vs. 9.5%, P = .0001).

“Despite an increased risk of hyperglycemia associated with steroid use, we found no association between corticosteroid use and infectious complications,” the researchers wrote in their discussion. The optimal type, dose, and duration of corticosteroids for hospitalized CAP patients has yet to be determined, and the type of corticosteroid may affect outcomes, they added.

The study findings were limited by several factors, including the consideration of hospitalized patients only, not those in the community, and by the inability to adjust for differing diagnostic criteria, illness severity at baseline, or other therapeutic interventions, the researchers noted. Larger studies are needed to assess mortality benefit, and longer follow-up is needed to identify causes of readmission, they said. However, the results suggest that corticosteroids may be useful for preventing the need for mechanical ventilation in hospitalized patients with bacterial pneumonia, they concluded.

The study received no outside funding. The researchers had no financial conflicts to disclose.

Adults hospitalized with community-acquired pneumonia were less likely to need mechanical ventilation after treatment with corticosteroids, but mortality was unaffected, based on data from a meta-analysis of nearly 4,000 patients.

Community-acquired pneumonia (CAP) remains a leading cause of morbidity and mortality in adults, but no routinely used strategies are associated with improvements in mortality, disease severity, or length of hospital stay, wrote Naveed Saleem, MSc, of University College, London, and colleagues.

Corticosteroids are recommended for various infectious diseases including bacterial meningitis, septic shock, and tuberculosis, as well as for COVID-19 pneumonia, because of their ability to reduce systemic inflammation, but have not been well studied in CAP, they noted.

In a study published in Chest, the researchers identified 16 randomized, controlled trials that compared the use of corticosteroids to standard care in CAP management. Of these, 9 were sponsored by pharmaceutical companies, 4 were open-label, and 11 were double-blind. The primary outcome was all-cause mortality; secondary outcomes were ICU admission, mechanical ventilation, treatment failure, readmission, and adverse events.

Although corticosteroids had no significant impact on the primary outcome of all-cause mortality, their use was associated with a significant reduction in the need for mechanical ventilation (relative risk 0.51, P = .001). The relative risk for the primary outcome of all-cause mortality was 0.85 (P = .17). Corticosteroids had no significant impact on the other secondary outcomes of ICU admission (RR 0.66), treatment failure (RR 0.78), and the incidence of adverse events (RR 1.10). However, data from five studies showed an increase in hospital admission rates for patients who received corticosteroids (RR 1.20, P = .008).

Overall, the risk of total adverse events was similar in patients who received corticosteroids vs. standard of care (55.8% vs. 48.5%). However, 27.2% of patients reported at least one adverse event related to corticosteroids. Incidence of most adverse events including gastrointestinal bleeding and secondary infections were similar between the groups, but patients who received corticosteroids had a significantly higher incidence of new-onset hyperglycemia compared to standard care patients (17.6% vs. 9.5%, P = .0001).

“Despite an increased risk of hyperglycemia associated with steroid use, we found no association between corticosteroid use and infectious complications,” the researchers wrote in their discussion. The optimal type, dose, and duration of corticosteroids for hospitalized CAP patients has yet to be determined, and the type of corticosteroid may affect outcomes, they added.

The study findings were limited by several factors, including the consideration of hospitalized patients only, not those in the community, and by the inability to adjust for differing diagnostic criteria, illness severity at baseline, or other therapeutic interventions, the researchers noted. Larger studies are needed to assess mortality benefit, and longer follow-up is needed to identify causes of readmission, they said. However, the results suggest that corticosteroids may be useful for preventing the need for mechanical ventilation in hospitalized patients with bacterial pneumonia, they concluded.

The study received no outside funding. The researchers had no financial conflicts to disclose.

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Mindfulness eases asthma burden

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Wed, 09/28/2022 - 18:41

Adults with asthma who received mindfulness training showed significant improvement in symptoms compared to those who did not receive such training, based on data from 73 individuals.

Although previous research shows the contribution of psychological factors to poor asthma control and exacerbations, the ability of mindfulness-based stress reduction (MBSR) to improve asthma symptoms in particular has not been well studied, wrote Estelle T. Higgins, BA, of the University of Wisconsin, Madison, and colleagues.

“Though the focus of mindfulness training is not symptom reduction, this is frequently the result in populations with chronic medical illness,” they wrote. The researchers hypothesized that MBSR training would reduce the effect of psychological distress on asthma control and inflammation compared to asthma patients in a waitlist control group.

In a study published in Brain, Behavior, & Immunity – Health, the researchers randomized 38 adults with asthma to a program of MBSR and 24 to a waitlist. The participants ranged in age from 18 to 65 years, with a mean of 38.1 years, and 43 were female. All patients had an asthma diagnosis for at least 6 months; airway inflammation was based on measures of fraction of exhaled nitric oxide (FeNO) ≥ 30 ppb, 138 blood eosinophil count ≥ 150 cells/mcL, or percent sputum eosinophils ≥ 2% of total leukocytes. Individuals with ongoing medical conditions other than asthma were excluded.

The MBSR group had seven clinical data collection visits at approximately 1-month intervals. MBSR training sessions occurred within classes offered to the community over a period of 8 weekly sessions and one 6-hour retreat, and included breath-focused attention, body scan, and mindful awareness in seated positions, walking, and yoga. Participants completed questionnaires about mindfulness, distress, depression, and anxiety symptoms. These were assessed at baseline, post intervention, and at study completion. Chronic stress level was determined at baseline only.

The primary outcome was asthma control based on the Asthma Control Questionnaire 6-item version (ACQ6) Minimally Important Difference.

Overall, asthma control improved significantly among those randomized to MBSR compared to waitlisted controls (P = .01) and this difference persisted at 4 months after the intervention.

Nearly one-third (32%) of the MBSR participants met the criteria for clinically significant improvement in asthma symptoms, compared to 12% of those on the wait list.

In addition, MBSR-related improvement in asthma control was significantly associated with a reduced distress (P = .043), and was especially effective for individuals with the highest levels of depressive symptoms at baseline, the researchers noted. Individuals who received MBSR also showed significantly reduced levels of exhaled nitric oxide compared to waitlist controls (P < .05).

The study findings were limited by the lack of an active control group, the researchers noted. “Though a wait-list control group was employed to control for variation in outcome measures over time, it is possible that effects reported here were driven by factors that are not specific to training in mindfulness, such as social support or expectancy effects,” they wrote. However, the results support the value of mindfulness in reducing psychological stress, FeNO, and impairments related to asthma that were sustained over time, they said. The results also support the potential of MBSR to both augment and reduce the need for pharmacological treatment in asthma, and mindfulness may be an effective way to improve overall disease control by reducing the contribution of psychological factors to asthma morbidity, they concluded.

The study was supported by the National Center for Complementary and Integrative Health. Coauthor Richard J. Davidson, MD, is the founder and president, and serves on the board of directors for the nonprofit organization, Healthy Minds Innovations Inc. The researchers had no financial conflicts to disclose.

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Adults with asthma who received mindfulness training showed significant improvement in symptoms compared to those who did not receive such training, based on data from 73 individuals.

Although previous research shows the contribution of psychological factors to poor asthma control and exacerbations, the ability of mindfulness-based stress reduction (MBSR) to improve asthma symptoms in particular has not been well studied, wrote Estelle T. Higgins, BA, of the University of Wisconsin, Madison, and colleagues.

“Though the focus of mindfulness training is not symptom reduction, this is frequently the result in populations with chronic medical illness,” they wrote. The researchers hypothesized that MBSR training would reduce the effect of psychological distress on asthma control and inflammation compared to asthma patients in a waitlist control group.

In a study published in Brain, Behavior, & Immunity – Health, the researchers randomized 38 adults with asthma to a program of MBSR and 24 to a waitlist. The participants ranged in age from 18 to 65 years, with a mean of 38.1 years, and 43 were female. All patients had an asthma diagnosis for at least 6 months; airway inflammation was based on measures of fraction of exhaled nitric oxide (FeNO) ≥ 30 ppb, 138 blood eosinophil count ≥ 150 cells/mcL, or percent sputum eosinophils ≥ 2% of total leukocytes. Individuals with ongoing medical conditions other than asthma were excluded.

The MBSR group had seven clinical data collection visits at approximately 1-month intervals. MBSR training sessions occurred within classes offered to the community over a period of 8 weekly sessions and one 6-hour retreat, and included breath-focused attention, body scan, and mindful awareness in seated positions, walking, and yoga. Participants completed questionnaires about mindfulness, distress, depression, and anxiety symptoms. These were assessed at baseline, post intervention, and at study completion. Chronic stress level was determined at baseline only.

The primary outcome was asthma control based on the Asthma Control Questionnaire 6-item version (ACQ6) Minimally Important Difference.

Overall, asthma control improved significantly among those randomized to MBSR compared to waitlisted controls (P = .01) and this difference persisted at 4 months after the intervention.

Nearly one-third (32%) of the MBSR participants met the criteria for clinically significant improvement in asthma symptoms, compared to 12% of those on the wait list.

In addition, MBSR-related improvement in asthma control was significantly associated with a reduced distress (P = .043), and was especially effective for individuals with the highest levels of depressive symptoms at baseline, the researchers noted. Individuals who received MBSR also showed significantly reduced levels of exhaled nitric oxide compared to waitlist controls (P < .05).

The study findings were limited by the lack of an active control group, the researchers noted. “Though a wait-list control group was employed to control for variation in outcome measures over time, it is possible that effects reported here were driven by factors that are not specific to training in mindfulness, such as social support or expectancy effects,” they wrote. However, the results support the value of mindfulness in reducing psychological stress, FeNO, and impairments related to asthma that were sustained over time, they said. The results also support the potential of MBSR to both augment and reduce the need for pharmacological treatment in asthma, and mindfulness may be an effective way to improve overall disease control by reducing the contribution of psychological factors to asthma morbidity, they concluded.

The study was supported by the National Center for Complementary and Integrative Health. Coauthor Richard J. Davidson, MD, is the founder and president, and serves on the board of directors for the nonprofit organization, Healthy Minds Innovations Inc. The researchers had no financial conflicts to disclose.

Adults with asthma who received mindfulness training showed significant improvement in symptoms compared to those who did not receive such training, based on data from 73 individuals.

Although previous research shows the contribution of psychological factors to poor asthma control and exacerbations, the ability of mindfulness-based stress reduction (MBSR) to improve asthma symptoms in particular has not been well studied, wrote Estelle T. Higgins, BA, of the University of Wisconsin, Madison, and colleagues.

“Though the focus of mindfulness training is not symptom reduction, this is frequently the result in populations with chronic medical illness,” they wrote. The researchers hypothesized that MBSR training would reduce the effect of psychological distress on asthma control and inflammation compared to asthma patients in a waitlist control group.

In a study published in Brain, Behavior, & Immunity – Health, the researchers randomized 38 adults with asthma to a program of MBSR and 24 to a waitlist. The participants ranged in age from 18 to 65 years, with a mean of 38.1 years, and 43 were female. All patients had an asthma diagnosis for at least 6 months; airway inflammation was based on measures of fraction of exhaled nitric oxide (FeNO) ≥ 30 ppb, 138 blood eosinophil count ≥ 150 cells/mcL, or percent sputum eosinophils ≥ 2% of total leukocytes. Individuals with ongoing medical conditions other than asthma were excluded.

The MBSR group had seven clinical data collection visits at approximately 1-month intervals. MBSR training sessions occurred within classes offered to the community over a period of 8 weekly sessions and one 6-hour retreat, and included breath-focused attention, body scan, and mindful awareness in seated positions, walking, and yoga. Participants completed questionnaires about mindfulness, distress, depression, and anxiety symptoms. These were assessed at baseline, post intervention, and at study completion. Chronic stress level was determined at baseline only.

The primary outcome was asthma control based on the Asthma Control Questionnaire 6-item version (ACQ6) Minimally Important Difference.

Overall, asthma control improved significantly among those randomized to MBSR compared to waitlisted controls (P = .01) and this difference persisted at 4 months after the intervention.

Nearly one-third (32%) of the MBSR participants met the criteria for clinically significant improvement in asthma symptoms, compared to 12% of those on the wait list.

In addition, MBSR-related improvement in asthma control was significantly associated with a reduced distress (P = .043), and was especially effective for individuals with the highest levels of depressive symptoms at baseline, the researchers noted. Individuals who received MBSR also showed significantly reduced levels of exhaled nitric oxide compared to waitlist controls (P < .05).

The study findings were limited by the lack of an active control group, the researchers noted. “Though a wait-list control group was employed to control for variation in outcome measures over time, it is possible that effects reported here were driven by factors that are not specific to training in mindfulness, such as social support or expectancy effects,” they wrote. However, the results support the value of mindfulness in reducing psychological stress, FeNO, and impairments related to asthma that were sustained over time, they said. The results also support the potential of MBSR to both augment and reduce the need for pharmacological treatment in asthma, and mindfulness may be an effective way to improve overall disease control by reducing the contribution of psychological factors to asthma morbidity, they concluded.

The study was supported by the National Center for Complementary and Integrative Health. Coauthor Richard J. Davidson, MD, is the founder and president, and serves on the board of directors for the nonprofit organization, Healthy Minds Innovations Inc. The researchers had no financial conflicts to disclose.

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Desperate long COVID patients turn to unproven alternative therapies

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Wed, 09/28/2022 - 18:45

Entrepreneur Maya McNulty, 49, was one of the first victims of the COVID-19 pandemic. The Schenectady, N.Y., businesswoman spent 2 months in the hospital after catching the disease in March 2020. That September, she was diagnosed with long COVID.

“Even a simple task such as unloading the dishwasher became a major challenge,” she says.

Over the next several months, Ms. McNulty saw a range of specialists, including neurologists, pulmonologists, and cardiologists. She had months of physical therapy and respiratory therapy to help regain strength and lung function. While many of the doctors she saw were sympathetic to what she was going through, not all were.

“I saw one neurologist who told me to my face that she didn’t believe in long COVID,” she recalls. “It was particularly astonishing since the hospital they were affiliated with had a long COVID clinic.”

Ms. McNulty began to connect with other patients with long COVID through a support group she created at the end of 2020 on the social media app Clubhouse. They exchanged ideas and stories about what had helped one another, which led her to try, over the next year, a plant-based diet, Chinese medicine, and vitamin C supplements, among other treatments.

She also acted on unscientific reports she found online and did her own research, which led her to discover claims that some asthma patients with chronic coughing responded well to halotherapy, or dry salt therapy, during which patients inhale micro-particles of salt into their lungs to reduce inflammation, widen airways, and thin mucus. She’s been doing this procedure at a clinic near her home for over a year and credits it with helping with her chronic cough, especially as she recovers from her second bout of COVID-19.

It’s not cheap – a single half-hour session can cost up to $50 and isn’t covered by insurance. There’s also no good research to suggest that it can help with long COVID, according to the Cleveland Clinic.

Ms. McNulty understands that but says many people who live with long COVID turn to these treatments out of a sense of desperation.

“When it comes to this condition, we kind of have to be our own advocates. People are so desperate and feel so gaslit by doctors who don’t believe in their symptoms that they play Russian roulette with their body,” she says. “Most just want some hope and a way to relieve pain.”

Across the country, 16 million Americans have long COVID, according to the Brookings Institution’s analysis of a 2022 Census Bureau report. The report also estimated that up to a quarter of them have such debilitating symptoms that they are no longer able to work. While long COVID centers may offer therapies to help relieve symptoms, “there are no evidence-based established treatments for long COVID at this point,” says Andrew Schamess, MD, a professor of internal medicine at Ohio State Wexner Medical Center, who runs its Post-COVID Recovery Program. “You can’t blame patients for looking for alternative remedies to help them. Unfortunately, there are also a lot of people out to make a buck who are selling unproven and disproven therapies.”
 

 

 

Sniffing out the snake oil

With few evidence-based treatments for long COVID, patients with debilitating symptoms can be tempted by unproven options. One that has gotten a lot of attention is hyperbaric oxygen. This therapy has traditionally been used to treat divers who have decompression sickness, or “the bends.” It’s also being touted by some clinics as an effective treatment for long COVID.

A very small trial of 73 patients with long COVID, published in the journal Scientific Reports, found that those treated in a high-pressure oxygen system 5 days a week for 2 months showed improvements in brain fog, pain, energy, sleep, anxiety, and depression, compared with similar patients who got sham treatments. But larger studies are needed to show how well it works, notes Dr. Schamess.

“It’s very expensive – roughly $120 per session – and there just isn’t the evidence there to support its use,” he says.

In addition, the therapy itself carries risks, such as ear and sinus pain, middle ear injury, temporary vision changes, and, very rarely, lung collapse, according to the U.S. Food and Drug Administration.

One “particularly troubling” treatment being offered, says Kathleen Bell, MD, chair of the department of physical medicine and rehabilitation at the University of Texas Southwestern Medical Center, is stem cell therapy. This therapy is still in its infancy, but it’s being marketed by some clinics as a way to prevent COVID-19 and also treat long-haul symptoms.

The FDA has issued advisories that there are no products approved to treat long COVID and recommends against their use, except in a clinical trial.

“There’s absolutely no regulation – you don’t know what you’re getting, and there’s no research to suggest this therapy even works,” says Dr. Bell. It’s also prohibitively expensive – one Cayman Islands–based company advertises its treatment for as much as $25,000.

Patients with long COVID are even traveling as far as Cyprus, Germany, and Switzerland for a procedure known as blood washing, in which large needles are inserted into veins to filter blood and remove lipids and inflammatory proteins, the British Medical Journal reported in July. Some patients are also prescribed blood thinners to remove microscopic blood clots that may contribute to long COVID. But this treatment is also expensive, with many people paying $10,000-$15,000 out of pocket, and there’s no published evidence to suggest it works, according to the BMJ.

It can be particularly hard to discern what may work and what’s unproven, since many primary care providers are themselves unfamiliar with even traditional long COVID treatments, Dr. Bell says.
 

Sorting through supplements

Yufang Lin, MD, an integrative specialist at the Cleveland Clinic, says many patients with long COVID enter her office with bags of supplements.

“There’s no data on them, and in large quantities, they may even be harmful,” she says.

Instead, she works closely with the Cleveland Clinic’s long COVID center to do a thorough workup of each patient, which often includes screening for certain nutritional deficiencies.

“Anecdotally, we do see many patients with long COVID who are deficient in these vitamins and minerals,” says Dr. Lin. “If someone is low, we will suggest the appropriate supplement. Otherwise, we work with them to institute some dietary changes.”

This usually involves a plant-based, anti-inflammatory eating pattern such as the Mediterranean diet, which is rich in fruits, vegetables, whole grains, nuts, fatty fish, and healthy fats such as olive oil and avocados.

Other supplements some doctors recommend for patients with long COVID are meant to treat inflammation, Dr. Bell says, although there’s not good evidence they work. One is the antioxidant coenzyme Q10.

But a small preprint study published in The Lancet, of 121 patients with long COVID who took 500 milligrams a day of coenzyme Q10 for 6 weeks saw no differences in recovery, compared with those who took a placebo. Because the study is still a preprint, it has not been peer-reviewed.

Another is probiotics. A small study, published in the journal Infectious Diseases Diagnosis & Treatment, found that a blend of five lactobacillus probiotics, along with a prebiotic called inulin, taken for 30 days, helped with long-term COVID symptoms such as coughing and fatigue. But larger studies need to be done to support their use.

One that may have more promise is omega-3 fatty acids. Like many other supplements, these may help with long COVID by easing inflammation, says Steven Flanagan, MD, a rehabilitation medicine specialist at NYU Langone who works with long COVID patients. Researchers at the Mount Sinai School of Medicine, New York, are studying whether a supplement can help patients who have lost their sense of taste or smell after an infection, but results aren’t yet available.

Among the few alternatives that have been shown to help patients are mindfulness-based therapies – in particular, mindfulness-based forms of exercise such as tai chi and qi gong may be helpful, as they combine a gentle workout with stress reduction.

“Both incorporate meditation, which helps not only to relieve some of the anxiety associated with long COVID but allows patients to redirect their thought process so that they can cope with symptoms better,” says Dr. Flanagan.

A 2022 study, published in BMJ Open, found that these two activities reduced inflammatory markers and improved respiratory muscle strength and function in patients recovering from COVID-19.

“I recommend these activities to all my long COVID patients, as it’s inexpensive and easy to find classes to do either at home or in their community,” he says. “Even if it doesn’t improve their long COVID symptoms, it has other benefits such as increased strength and flexibility that can boost their overall health.”

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

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Entrepreneur Maya McNulty, 49, was one of the first victims of the COVID-19 pandemic. The Schenectady, N.Y., businesswoman spent 2 months in the hospital after catching the disease in March 2020. That September, she was diagnosed with long COVID.

“Even a simple task such as unloading the dishwasher became a major challenge,” she says.

Over the next several months, Ms. McNulty saw a range of specialists, including neurologists, pulmonologists, and cardiologists. She had months of physical therapy and respiratory therapy to help regain strength and lung function. While many of the doctors she saw were sympathetic to what she was going through, not all were.

“I saw one neurologist who told me to my face that she didn’t believe in long COVID,” she recalls. “It was particularly astonishing since the hospital they were affiliated with had a long COVID clinic.”

Ms. McNulty began to connect with other patients with long COVID through a support group she created at the end of 2020 on the social media app Clubhouse. They exchanged ideas and stories about what had helped one another, which led her to try, over the next year, a plant-based diet, Chinese medicine, and vitamin C supplements, among other treatments.

She also acted on unscientific reports she found online and did her own research, which led her to discover claims that some asthma patients with chronic coughing responded well to halotherapy, or dry salt therapy, during which patients inhale micro-particles of salt into their lungs to reduce inflammation, widen airways, and thin mucus. She’s been doing this procedure at a clinic near her home for over a year and credits it with helping with her chronic cough, especially as she recovers from her second bout of COVID-19.

It’s not cheap – a single half-hour session can cost up to $50 and isn’t covered by insurance. There’s also no good research to suggest that it can help with long COVID, according to the Cleveland Clinic.

Ms. McNulty understands that but says many people who live with long COVID turn to these treatments out of a sense of desperation.

“When it comes to this condition, we kind of have to be our own advocates. People are so desperate and feel so gaslit by doctors who don’t believe in their symptoms that they play Russian roulette with their body,” she says. “Most just want some hope and a way to relieve pain.”

Across the country, 16 million Americans have long COVID, according to the Brookings Institution’s analysis of a 2022 Census Bureau report. The report also estimated that up to a quarter of them have such debilitating symptoms that they are no longer able to work. While long COVID centers may offer therapies to help relieve symptoms, “there are no evidence-based established treatments for long COVID at this point,” says Andrew Schamess, MD, a professor of internal medicine at Ohio State Wexner Medical Center, who runs its Post-COVID Recovery Program. “You can’t blame patients for looking for alternative remedies to help them. Unfortunately, there are also a lot of people out to make a buck who are selling unproven and disproven therapies.”
 

 

 

Sniffing out the snake oil

With few evidence-based treatments for long COVID, patients with debilitating symptoms can be tempted by unproven options. One that has gotten a lot of attention is hyperbaric oxygen. This therapy has traditionally been used to treat divers who have decompression sickness, or “the bends.” It’s also being touted by some clinics as an effective treatment for long COVID.

A very small trial of 73 patients with long COVID, published in the journal Scientific Reports, found that those treated in a high-pressure oxygen system 5 days a week for 2 months showed improvements in brain fog, pain, energy, sleep, anxiety, and depression, compared with similar patients who got sham treatments. But larger studies are needed to show how well it works, notes Dr. Schamess.

“It’s very expensive – roughly $120 per session – and there just isn’t the evidence there to support its use,” he says.

In addition, the therapy itself carries risks, such as ear and sinus pain, middle ear injury, temporary vision changes, and, very rarely, lung collapse, according to the U.S. Food and Drug Administration.

One “particularly troubling” treatment being offered, says Kathleen Bell, MD, chair of the department of physical medicine and rehabilitation at the University of Texas Southwestern Medical Center, is stem cell therapy. This therapy is still in its infancy, but it’s being marketed by some clinics as a way to prevent COVID-19 and also treat long-haul symptoms.

The FDA has issued advisories that there are no products approved to treat long COVID and recommends against their use, except in a clinical trial.

“There’s absolutely no regulation – you don’t know what you’re getting, and there’s no research to suggest this therapy even works,” says Dr. Bell. It’s also prohibitively expensive – one Cayman Islands–based company advertises its treatment for as much as $25,000.

Patients with long COVID are even traveling as far as Cyprus, Germany, and Switzerland for a procedure known as blood washing, in which large needles are inserted into veins to filter blood and remove lipids and inflammatory proteins, the British Medical Journal reported in July. Some patients are also prescribed blood thinners to remove microscopic blood clots that may contribute to long COVID. But this treatment is also expensive, with many people paying $10,000-$15,000 out of pocket, and there’s no published evidence to suggest it works, according to the BMJ.

It can be particularly hard to discern what may work and what’s unproven, since many primary care providers are themselves unfamiliar with even traditional long COVID treatments, Dr. Bell says.
 

Sorting through supplements

Yufang Lin, MD, an integrative specialist at the Cleveland Clinic, says many patients with long COVID enter her office with bags of supplements.

“There’s no data on them, and in large quantities, they may even be harmful,” she says.

Instead, she works closely with the Cleveland Clinic’s long COVID center to do a thorough workup of each patient, which often includes screening for certain nutritional deficiencies.

“Anecdotally, we do see many patients with long COVID who are deficient in these vitamins and minerals,” says Dr. Lin. “If someone is low, we will suggest the appropriate supplement. Otherwise, we work with them to institute some dietary changes.”

This usually involves a plant-based, anti-inflammatory eating pattern such as the Mediterranean diet, which is rich in fruits, vegetables, whole grains, nuts, fatty fish, and healthy fats such as olive oil and avocados.

Other supplements some doctors recommend for patients with long COVID are meant to treat inflammation, Dr. Bell says, although there’s not good evidence they work. One is the antioxidant coenzyme Q10.

But a small preprint study published in The Lancet, of 121 patients with long COVID who took 500 milligrams a day of coenzyme Q10 for 6 weeks saw no differences in recovery, compared with those who took a placebo. Because the study is still a preprint, it has not been peer-reviewed.

Another is probiotics. A small study, published in the journal Infectious Diseases Diagnosis & Treatment, found that a blend of five lactobacillus probiotics, along with a prebiotic called inulin, taken for 30 days, helped with long-term COVID symptoms such as coughing and fatigue. But larger studies need to be done to support their use.

One that may have more promise is omega-3 fatty acids. Like many other supplements, these may help with long COVID by easing inflammation, says Steven Flanagan, MD, a rehabilitation medicine specialist at NYU Langone who works with long COVID patients. Researchers at the Mount Sinai School of Medicine, New York, are studying whether a supplement can help patients who have lost their sense of taste or smell after an infection, but results aren’t yet available.

Among the few alternatives that have been shown to help patients are mindfulness-based therapies – in particular, mindfulness-based forms of exercise such as tai chi and qi gong may be helpful, as they combine a gentle workout with stress reduction.

“Both incorporate meditation, which helps not only to relieve some of the anxiety associated with long COVID but allows patients to redirect their thought process so that they can cope with symptoms better,” says Dr. Flanagan.

A 2022 study, published in BMJ Open, found that these two activities reduced inflammatory markers and improved respiratory muscle strength and function in patients recovering from COVID-19.

“I recommend these activities to all my long COVID patients, as it’s inexpensive and easy to find classes to do either at home or in their community,” he says. “Even if it doesn’t improve their long COVID symptoms, it has other benefits such as increased strength and flexibility that can boost their overall health.”

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

Entrepreneur Maya McNulty, 49, was one of the first victims of the COVID-19 pandemic. The Schenectady, N.Y., businesswoman spent 2 months in the hospital after catching the disease in March 2020. That September, she was diagnosed with long COVID.

“Even a simple task such as unloading the dishwasher became a major challenge,” she says.

Over the next several months, Ms. McNulty saw a range of specialists, including neurologists, pulmonologists, and cardiologists. She had months of physical therapy and respiratory therapy to help regain strength and lung function. While many of the doctors she saw were sympathetic to what she was going through, not all were.

“I saw one neurologist who told me to my face that she didn’t believe in long COVID,” she recalls. “It was particularly astonishing since the hospital they were affiliated with had a long COVID clinic.”

Ms. McNulty began to connect with other patients with long COVID through a support group she created at the end of 2020 on the social media app Clubhouse. They exchanged ideas and stories about what had helped one another, which led her to try, over the next year, a plant-based diet, Chinese medicine, and vitamin C supplements, among other treatments.

She also acted on unscientific reports she found online and did her own research, which led her to discover claims that some asthma patients with chronic coughing responded well to halotherapy, or dry salt therapy, during which patients inhale micro-particles of salt into their lungs to reduce inflammation, widen airways, and thin mucus. She’s been doing this procedure at a clinic near her home for over a year and credits it with helping with her chronic cough, especially as she recovers from her second bout of COVID-19.

It’s not cheap – a single half-hour session can cost up to $50 and isn’t covered by insurance. There’s also no good research to suggest that it can help with long COVID, according to the Cleveland Clinic.

Ms. McNulty understands that but says many people who live with long COVID turn to these treatments out of a sense of desperation.

“When it comes to this condition, we kind of have to be our own advocates. People are so desperate and feel so gaslit by doctors who don’t believe in their symptoms that they play Russian roulette with their body,” she says. “Most just want some hope and a way to relieve pain.”

Across the country, 16 million Americans have long COVID, according to the Brookings Institution’s analysis of a 2022 Census Bureau report. The report also estimated that up to a quarter of them have such debilitating symptoms that they are no longer able to work. While long COVID centers may offer therapies to help relieve symptoms, “there are no evidence-based established treatments for long COVID at this point,” says Andrew Schamess, MD, a professor of internal medicine at Ohio State Wexner Medical Center, who runs its Post-COVID Recovery Program. “You can’t blame patients for looking for alternative remedies to help them. Unfortunately, there are also a lot of people out to make a buck who are selling unproven and disproven therapies.”
 

 

 

Sniffing out the snake oil

With few evidence-based treatments for long COVID, patients with debilitating symptoms can be tempted by unproven options. One that has gotten a lot of attention is hyperbaric oxygen. This therapy has traditionally been used to treat divers who have decompression sickness, or “the bends.” It’s also being touted by some clinics as an effective treatment for long COVID.

A very small trial of 73 patients with long COVID, published in the journal Scientific Reports, found that those treated in a high-pressure oxygen system 5 days a week for 2 months showed improvements in brain fog, pain, energy, sleep, anxiety, and depression, compared with similar patients who got sham treatments. But larger studies are needed to show how well it works, notes Dr. Schamess.

“It’s very expensive – roughly $120 per session – and there just isn’t the evidence there to support its use,” he says.

In addition, the therapy itself carries risks, such as ear and sinus pain, middle ear injury, temporary vision changes, and, very rarely, lung collapse, according to the U.S. Food and Drug Administration.

One “particularly troubling” treatment being offered, says Kathleen Bell, MD, chair of the department of physical medicine and rehabilitation at the University of Texas Southwestern Medical Center, is stem cell therapy. This therapy is still in its infancy, but it’s being marketed by some clinics as a way to prevent COVID-19 and also treat long-haul symptoms.

The FDA has issued advisories that there are no products approved to treat long COVID and recommends against their use, except in a clinical trial.

“There’s absolutely no regulation – you don’t know what you’re getting, and there’s no research to suggest this therapy even works,” says Dr. Bell. It’s also prohibitively expensive – one Cayman Islands–based company advertises its treatment for as much as $25,000.

Patients with long COVID are even traveling as far as Cyprus, Germany, and Switzerland for a procedure known as blood washing, in which large needles are inserted into veins to filter blood and remove lipids and inflammatory proteins, the British Medical Journal reported in July. Some patients are also prescribed blood thinners to remove microscopic blood clots that may contribute to long COVID. But this treatment is also expensive, with many people paying $10,000-$15,000 out of pocket, and there’s no published evidence to suggest it works, according to the BMJ.

It can be particularly hard to discern what may work and what’s unproven, since many primary care providers are themselves unfamiliar with even traditional long COVID treatments, Dr. Bell says.
 

Sorting through supplements

Yufang Lin, MD, an integrative specialist at the Cleveland Clinic, says many patients with long COVID enter her office with bags of supplements.

“There’s no data on them, and in large quantities, they may even be harmful,” she says.

Instead, she works closely with the Cleveland Clinic’s long COVID center to do a thorough workup of each patient, which often includes screening for certain nutritional deficiencies.

“Anecdotally, we do see many patients with long COVID who are deficient in these vitamins and minerals,” says Dr. Lin. “If someone is low, we will suggest the appropriate supplement. Otherwise, we work with them to institute some dietary changes.”

This usually involves a plant-based, anti-inflammatory eating pattern such as the Mediterranean diet, which is rich in fruits, vegetables, whole grains, nuts, fatty fish, and healthy fats such as olive oil and avocados.

Other supplements some doctors recommend for patients with long COVID are meant to treat inflammation, Dr. Bell says, although there’s not good evidence they work. One is the antioxidant coenzyme Q10.

But a small preprint study published in The Lancet, of 121 patients with long COVID who took 500 milligrams a day of coenzyme Q10 for 6 weeks saw no differences in recovery, compared with those who took a placebo. Because the study is still a preprint, it has not been peer-reviewed.

Another is probiotics. A small study, published in the journal Infectious Diseases Diagnosis & Treatment, found that a blend of five lactobacillus probiotics, along with a prebiotic called inulin, taken for 30 days, helped with long-term COVID symptoms such as coughing and fatigue. But larger studies need to be done to support their use.

One that may have more promise is omega-3 fatty acids. Like many other supplements, these may help with long COVID by easing inflammation, says Steven Flanagan, MD, a rehabilitation medicine specialist at NYU Langone who works with long COVID patients. Researchers at the Mount Sinai School of Medicine, New York, are studying whether a supplement can help patients who have lost their sense of taste or smell after an infection, but results aren’t yet available.

Among the few alternatives that have been shown to help patients are mindfulness-based therapies – in particular, mindfulness-based forms of exercise such as tai chi and qi gong may be helpful, as they combine a gentle workout with stress reduction.

“Both incorporate meditation, which helps not only to relieve some of the anxiety associated with long COVID but allows patients to redirect their thought process so that they can cope with symptoms better,” says Dr. Flanagan.

A 2022 study, published in BMJ Open, found that these two activities reduced inflammatory markers and improved respiratory muscle strength and function in patients recovering from COVID-19.

“I recommend these activities to all my long COVID patients, as it’s inexpensive and easy to find classes to do either at home or in their community,” he says. “Even if it doesn’t improve their long COVID symptoms, it has other benefits such as increased strength and flexibility that can boost their overall health.”

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

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Limiting antibiotic overprescription in pandemics: New guidelines

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Changed
Wed, 09/28/2022 - 18:09

A statement by the Society for Healthcare Epidemiology of America, published online in Infection Control & Hospital Epidemiology, offers health care providers guidelines on how to prevent inappropriate antibiotic use in future pandemics and to avoid some of the negative scenarios that have been seen with COVID-19.

According to the U.S. Centers of Disease Control and Prevention, the COVID-19 pandemic brought an alarming increase in antimicrobial resistance in hospitals, with infections and deaths caused by resistant bacteria and fungi going up by 15%. For some pathogens, such as the Carbapenem-resistant Acinetobacter, that number is now as high as 78%.

The culprit might be the widespread antibiotic overprescription during the current pandemic. A 2022 meta-analysis revealed that in high-income countries, 58% of patients with COVID-19 were given antibiotics, whereas in lower- and middle-income countries, 89% of patients were put on such drugs. Some hospitals in Europe and the United States reported similarly elevated numbers, sometimes approaching 100%.

“We’ve lost control,” Natasha Pettit, PharmD, pharmacy director at University of Chicago Medicine, told this news organization. Dr. Pettit was not involved in the SHEA study. “Even if CDC didn’t come out with that data, I can tell you right now more of my time is spent trying to figure out how to manage these multi-drug–resistant infections, and we are running out of options for these patients,”

“Dealing with uncertainty, exhaustion, [and] critical illness in often young, otherwise healthy patients meant doctors wanted to do something for their patients,” said Tamar Barlam, MD, an infectious diseases expert at the Boston Medical Center who led the development of the SHEA white paper, in an interview.

That something often was a prescription for antibiotics, even without a clear indication that they were actually needed. A British study revealed that in times of pandemic uncertainty, clinicians often reached for antibiotics “just in case” and referred to conservative prescribing as “bravery.”

Studies have shown, however, that bacterial co-infections in COVID-19 are rare. A 2020 meta-analysis of 24 studies concluded that only 3.5% of patients had a bacterial co-infection on presentation, and 14.3% had a secondary infection. Similar patterns had previously been observed in other viral outbreaks. Research on MERS-CoV, for example, documented only 1% of patients with a bacterial co-infection on admission. During the 2009 H1N1 influenza pandemic, that number was 12% of non–ICU hospitalized patients.

Yet, according to Dr. Pettit, even when such data became available, it didn’t necessarily change prescribing patterns. “Information was coming at us so quickly, I think the providers didn’t have a moment to see the data, to understand what it meant for their prescribing. Having external guidance earlier on would have been hugely helpful,” she told this news organization.

That’s where the newly published SHEA statement comes in: It outlines recommendations on when to prescribe antibiotics during a respiratory viral pandemic, what tests to order, and when to de-escalate or discontinue the treatment. These recommendations include, for instance, advice to not trust inflammatory markers as reliable indicators of bacterial or fungal infection and to not use procalcitonin routinely to aid in the decision to initiate antibiotics.

According to Dr. Barlam, one of the crucial lessons here is that if clinicians see patients with symptoms that are consistent with the current pandemic, they should trust their own impressions and avoid reaching for antimicrobials “just in case.”

Another important lesson is that antibiotic stewardship programs have a huge role to play during pandemics. They should not only monitor prescribing but also compile new information on bacterial co-infections as it gets released and make sure it reaches the clinicians in a clear form.

Evidence suggests that such programs and guidelines do work to limit unnecessary antibiotic use. In one medical center in Chicago, for example, before recommendations on when to initiate and discontinue antimicrobials were released, over 74% of COVID-19 patients received antibiotics. After guidelines were put in place, the use of such drugs fell to 42%.

Dr. Pettit believes, however, that it’s important not to leave each medical center to its own devices. “Hindsight is always twenty-twenty,” she said, “but I think it would be great that, if we start hearing about a pathogen that might lead to another pandemic, we should have a mechanism in place to call together an expert body to get guidance for how antimicrobial stewardship programs should get involved.”

One of the authors of the SHEA statement, Susan Seo, reports an investigator-initiated Merck grant on cost-effectiveness of letermovir in hematopoietic stem cell transplant patients. Another author, Graeme Forrest, reports a clinical study grant from Regeneron for inpatient monoclonals against SARS-CoV-2. All other authors report no conflicts of interest. The study was independently supported.

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

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A statement by the Society for Healthcare Epidemiology of America, published online in Infection Control & Hospital Epidemiology, offers health care providers guidelines on how to prevent inappropriate antibiotic use in future pandemics and to avoid some of the negative scenarios that have been seen with COVID-19.

According to the U.S. Centers of Disease Control and Prevention, the COVID-19 pandemic brought an alarming increase in antimicrobial resistance in hospitals, with infections and deaths caused by resistant bacteria and fungi going up by 15%. For some pathogens, such as the Carbapenem-resistant Acinetobacter, that number is now as high as 78%.

The culprit might be the widespread antibiotic overprescription during the current pandemic. A 2022 meta-analysis revealed that in high-income countries, 58% of patients with COVID-19 were given antibiotics, whereas in lower- and middle-income countries, 89% of patients were put on such drugs. Some hospitals in Europe and the United States reported similarly elevated numbers, sometimes approaching 100%.

“We’ve lost control,” Natasha Pettit, PharmD, pharmacy director at University of Chicago Medicine, told this news organization. Dr. Pettit was not involved in the SHEA study. “Even if CDC didn’t come out with that data, I can tell you right now more of my time is spent trying to figure out how to manage these multi-drug–resistant infections, and we are running out of options for these patients,”

“Dealing with uncertainty, exhaustion, [and] critical illness in often young, otherwise healthy patients meant doctors wanted to do something for their patients,” said Tamar Barlam, MD, an infectious diseases expert at the Boston Medical Center who led the development of the SHEA white paper, in an interview.

That something often was a prescription for antibiotics, even without a clear indication that they were actually needed. A British study revealed that in times of pandemic uncertainty, clinicians often reached for antibiotics “just in case” and referred to conservative prescribing as “bravery.”

Studies have shown, however, that bacterial co-infections in COVID-19 are rare. A 2020 meta-analysis of 24 studies concluded that only 3.5% of patients had a bacterial co-infection on presentation, and 14.3% had a secondary infection. Similar patterns had previously been observed in other viral outbreaks. Research on MERS-CoV, for example, documented only 1% of patients with a bacterial co-infection on admission. During the 2009 H1N1 influenza pandemic, that number was 12% of non–ICU hospitalized patients.

Yet, according to Dr. Pettit, even when such data became available, it didn’t necessarily change prescribing patterns. “Information was coming at us so quickly, I think the providers didn’t have a moment to see the data, to understand what it meant for their prescribing. Having external guidance earlier on would have been hugely helpful,” she told this news organization.

That’s where the newly published SHEA statement comes in: It outlines recommendations on when to prescribe antibiotics during a respiratory viral pandemic, what tests to order, and when to de-escalate or discontinue the treatment. These recommendations include, for instance, advice to not trust inflammatory markers as reliable indicators of bacterial or fungal infection and to not use procalcitonin routinely to aid in the decision to initiate antibiotics.

According to Dr. Barlam, one of the crucial lessons here is that if clinicians see patients with symptoms that are consistent with the current pandemic, they should trust their own impressions and avoid reaching for antimicrobials “just in case.”

Another important lesson is that antibiotic stewardship programs have a huge role to play during pandemics. They should not only monitor prescribing but also compile new information on bacterial co-infections as it gets released and make sure it reaches the clinicians in a clear form.

Evidence suggests that such programs and guidelines do work to limit unnecessary antibiotic use. In one medical center in Chicago, for example, before recommendations on when to initiate and discontinue antimicrobials were released, over 74% of COVID-19 patients received antibiotics. After guidelines were put in place, the use of such drugs fell to 42%.

Dr. Pettit believes, however, that it’s important not to leave each medical center to its own devices. “Hindsight is always twenty-twenty,” she said, “but I think it would be great that, if we start hearing about a pathogen that might lead to another pandemic, we should have a mechanism in place to call together an expert body to get guidance for how antimicrobial stewardship programs should get involved.”

One of the authors of the SHEA statement, Susan Seo, reports an investigator-initiated Merck grant on cost-effectiveness of letermovir in hematopoietic stem cell transplant patients. Another author, Graeme Forrest, reports a clinical study grant from Regeneron for inpatient monoclonals against SARS-CoV-2. All other authors report no conflicts of interest. The study was independently supported.

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

A statement by the Society for Healthcare Epidemiology of America, published online in Infection Control & Hospital Epidemiology, offers health care providers guidelines on how to prevent inappropriate antibiotic use in future pandemics and to avoid some of the negative scenarios that have been seen with COVID-19.

According to the U.S. Centers of Disease Control and Prevention, the COVID-19 pandemic brought an alarming increase in antimicrobial resistance in hospitals, with infections and deaths caused by resistant bacteria and fungi going up by 15%. For some pathogens, such as the Carbapenem-resistant Acinetobacter, that number is now as high as 78%.

The culprit might be the widespread antibiotic overprescription during the current pandemic. A 2022 meta-analysis revealed that in high-income countries, 58% of patients with COVID-19 were given antibiotics, whereas in lower- and middle-income countries, 89% of patients were put on such drugs. Some hospitals in Europe and the United States reported similarly elevated numbers, sometimes approaching 100%.

“We’ve lost control,” Natasha Pettit, PharmD, pharmacy director at University of Chicago Medicine, told this news organization. Dr. Pettit was not involved in the SHEA study. “Even if CDC didn’t come out with that data, I can tell you right now more of my time is spent trying to figure out how to manage these multi-drug–resistant infections, and we are running out of options for these patients,”

“Dealing with uncertainty, exhaustion, [and] critical illness in often young, otherwise healthy patients meant doctors wanted to do something for their patients,” said Tamar Barlam, MD, an infectious diseases expert at the Boston Medical Center who led the development of the SHEA white paper, in an interview.

That something often was a prescription for antibiotics, even without a clear indication that they were actually needed. A British study revealed that in times of pandemic uncertainty, clinicians often reached for antibiotics “just in case” and referred to conservative prescribing as “bravery.”

Studies have shown, however, that bacterial co-infections in COVID-19 are rare. A 2020 meta-analysis of 24 studies concluded that only 3.5% of patients had a bacterial co-infection on presentation, and 14.3% had a secondary infection. Similar patterns had previously been observed in other viral outbreaks. Research on MERS-CoV, for example, documented only 1% of patients with a bacterial co-infection on admission. During the 2009 H1N1 influenza pandemic, that number was 12% of non–ICU hospitalized patients.

Yet, according to Dr. Pettit, even when such data became available, it didn’t necessarily change prescribing patterns. “Information was coming at us so quickly, I think the providers didn’t have a moment to see the data, to understand what it meant for their prescribing. Having external guidance earlier on would have been hugely helpful,” she told this news organization.

That’s where the newly published SHEA statement comes in: It outlines recommendations on when to prescribe antibiotics during a respiratory viral pandemic, what tests to order, and when to de-escalate or discontinue the treatment. These recommendations include, for instance, advice to not trust inflammatory markers as reliable indicators of bacterial or fungal infection and to not use procalcitonin routinely to aid in the decision to initiate antibiotics.

According to Dr. Barlam, one of the crucial lessons here is that if clinicians see patients with symptoms that are consistent with the current pandemic, they should trust their own impressions and avoid reaching for antimicrobials “just in case.”

Another important lesson is that antibiotic stewardship programs have a huge role to play during pandemics. They should not only monitor prescribing but also compile new information on bacterial co-infections as it gets released and make sure it reaches the clinicians in a clear form.

Evidence suggests that such programs and guidelines do work to limit unnecessary antibiotic use. In one medical center in Chicago, for example, before recommendations on when to initiate and discontinue antimicrobials were released, over 74% of COVID-19 patients received antibiotics. After guidelines were put in place, the use of such drugs fell to 42%.

Dr. Pettit believes, however, that it’s important not to leave each medical center to its own devices. “Hindsight is always twenty-twenty,” she said, “but I think it would be great that, if we start hearing about a pathogen that might lead to another pandemic, we should have a mechanism in place to call together an expert body to get guidance for how antimicrobial stewardship programs should get involved.”

One of the authors of the SHEA statement, Susan Seo, reports an investigator-initiated Merck grant on cost-effectiveness of letermovir in hematopoietic stem cell transplant patients. Another author, Graeme Forrest, reports a clinical study grant from Regeneron for inpatient monoclonals against SARS-CoV-2. All other authors report no conflicts of interest. The study was independently supported.

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

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High BMI linked to better survival for cancer patients treated with ICI, but for men only

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Wed, 01/04/2023 - 16:57

High body mass index (BMI) values are associated with higher survival among metastatic cancer patients treated with first- and second-line immune checkpoint inhibitors (ICIs), but the relationship was only present in males.

That is the conclusion of a new retrospective analysis presented during a poster session given at the annual meeting of the European Society for Medical Oncology. The study sought to better understand ICI outcomes. “These are complex new treatments and, because they harness the immune system, no two patients are likely to respond in the same way. BMI has previously been associated with improved survival in patients with advanced lung cancer treated with immunotherapy. However, the reasons behind this observation, and the implications for treatment are unknown, as is whether this observation is specific for patients with only certain types of cancers,” study author Dwight Owen, MD, said in an email.

He pointed out that the retrospective nature of the findings means that they have no immediate clinical implications. “The reason for the discrepancy in males remains unclear. Although our study included a relatively large number of patients, it is a heterogenous cohort and there may be confounding factors that we haven’t recognized, so these findings need to be replicated in larger cohorts,” said Dr. Owen, a medical oncologist with The Ohio State University Comprehensive Cancer Center, Columbus.

Asked if there is a potential biological explanation for a difference between males and females, Dr. Owen said that this is an area of intense research. One recent study examined whether androgen could help explain why men are more likely than women to both develop and have more aggressive nonreproductive cancers. They concluded that androgen receptor signaling may be leading to loss of effector and proliferative potential of CD8+ T cells in the tumor microenvironment. Once exhausted, these cells do not respond well to stimulation that can occur after ICI treatment.

On the opposite end of the spectrum, cancer cachexia is also a key subject of study. It is characterized by weight loss and is associated with worse clinical outcomes. A cachexia mouse model found that weight loss can lead to more clearance of immune checkpoint antibodies.

Still, much more work needs to be done. “For now, how BMI, obesity, and cachexia relate to other factors, for instance the microbiome and tumor immunogenicity, are still not fully understood,” Dr. Owen said.
 

The study data

The researchers analyzed data from 688 patients with metastatic cancer treated at their center between 2011 and 2017. 94% were White and 5% were Black. 41% were female and the mean age was 61.9 years. The mean BMI was 28.8 kg/m2; 40% of patients had melanoma, 23% had non–small cell lung cancer, 10% had renal cancer, and 27% had another form of cancer.

For every unit decrease in BMI, the researchers observed a 1.8% decrease in mortality (hazard ratio, 0.982; P = .007). Patients with a BMI of 40 or above had better survival than all other patients grouped by 5 BMI increments (that is, 35-40, 30-35, etc.). When separated by sex, males had a significant decrease in mortality for every increase in BMI unit (HR, 0.964; P = .004), but there was no significant difference among women (HR, 1.003; P = .706). The relationship in men held up after adjustment for Eastern Cooperative Oncology Group score, line of therapy, and cancer type (HR, 0.979; P = .0308). The researchers also looked at a separate cohort of 185 normal weight and 15 obese (BMI ≥ 40) NSCLC patients. Median survival was 27.5 months in the obese group and 9.1 months in the normal weight group (HR, 0.474; 95% CI, 0.232-0.969).

Dr. Owen has received research funding through his institution from Bristol-Myers Squibb, Genentech, Pfizer, Palobiofarma, and Onc.AI.

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High body mass index (BMI) values are associated with higher survival among metastatic cancer patients treated with first- and second-line immune checkpoint inhibitors (ICIs), but the relationship was only present in males.

That is the conclusion of a new retrospective analysis presented during a poster session given at the annual meeting of the European Society for Medical Oncology. The study sought to better understand ICI outcomes. “These are complex new treatments and, because they harness the immune system, no two patients are likely to respond in the same way. BMI has previously been associated with improved survival in patients with advanced lung cancer treated with immunotherapy. However, the reasons behind this observation, and the implications for treatment are unknown, as is whether this observation is specific for patients with only certain types of cancers,” study author Dwight Owen, MD, said in an email.

He pointed out that the retrospective nature of the findings means that they have no immediate clinical implications. “The reason for the discrepancy in males remains unclear. Although our study included a relatively large number of patients, it is a heterogenous cohort and there may be confounding factors that we haven’t recognized, so these findings need to be replicated in larger cohorts,” said Dr. Owen, a medical oncologist with The Ohio State University Comprehensive Cancer Center, Columbus.

Asked if there is a potential biological explanation for a difference between males and females, Dr. Owen said that this is an area of intense research. One recent study examined whether androgen could help explain why men are more likely than women to both develop and have more aggressive nonreproductive cancers. They concluded that androgen receptor signaling may be leading to loss of effector and proliferative potential of CD8+ T cells in the tumor microenvironment. Once exhausted, these cells do not respond well to stimulation that can occur after ICI treatment.

On the opposite end of the spectrum, cancer cachexia is also a key subject of study. It is characterized by weight loss and is associated with worse clinical outcomes. A cachexia mouse model found that weight loss can lead to more clearance of immune checkpoint antibodies.

Still, much more work needs to be done. “For now, how BMI, obesity, and cachexia relate to other factors, for instance the microbiome and tumor immunogenicity, are still not fully understood,” Dr. Owen said.
 

The study data

The researchers analyzed data from 688 patients with metastatic cancer treated at their center between 2011 and 2017. 94% were White and 5% were Black. 41% were female and the mean age was 61.9 years. The mean BMI was 28.8 kg/m2; 40% of patients had melanoma, 23% had non–small cell lung cancer, 10% had renal cancer, and 27% had another form of cancer.

For every unit decrease in BMI, the researchers observed a 1.8% decrease in mortality (hazard ratio, 0.982; P = .007). Patients with a BMI of 40 or above had better survival than all other patients grouped by 5 BMI increments (that is, 35-40, 30-35, etc.). When separated by sex, males had a significant decrease in mortality for every increase in BMI unit (HR, 0.964; P = .004), but there was no significant difference among women (HR, 1.003; P = .706). The relationship in men held up after adjustment for Eastern Cooperative Oncology Group score, line of therapy, and cancer type (HR, 0.979; P = .0308). The researchers also looked at a separate cohort of 185 normal weight and 15 obese (BMI ≥ 40) NSCLC patients. Median survival was 27.5 months in the obese group and 9.1 months in the normal weight group (HR, 0.474; 95% CI, 0.232-0.969).

Dr. Owen has received research funding through his institution from Bristol-Myers Squibb, Genentech, Pfizer, Palobiofarma, and Onc.AI.

High body mass index (BMI) values are associated with higher survival among metastatic cancer patients treated with first- and second-line immune checkpoint inhibitors (ICIs), but the relationship was only present in males.

That is the conclusion of a new retrospective analysis presented during a poster session given at the annual meeting of the European Society for Medical Oncology. The study sought to better understand ICI outcomes. “These are complex new treatments and, because they harness the immune system, no two patients are likely to respond in the same way. BMI has previously been associated with improved survival in patients with advanced lung cancer treated with immunotherapy. However, the reasons behind this observation, and the implications for treatment are unknown, as is whether this observation is specific for patients with only certain types of cancers,” study author Dwight Owen, MD, said in an email.

He pointed out that the retrospective nature of the findings means that they have no immediate clinical implications. “The reason for the discrepancy in males remains unclear. Although our study included a relatively large number of patients, it is a heterogenous cohort and there may be confounding factors that we haven’t recognized, so these findings need to be replicated in larger cohorts,” said Dr. Owen, a medical oncologist with The Ohio State University Comprehensive Cancer Center, Columbus.

Asked if there is a potential biological explanation for a difference between males and females, Dr. Owen said that this is an area of intense research. One recent study examined whether androgen could help explain why men are more likely than women to both develop and have more aggressive nonreproductive cancers. They concluded that androgen receptor signaling may be leading to loss of effector and proliferative potential of CD8+ T cells in the tumor microenvironment. Once exhausted, these cells do not respond well to stimulation that can occur after ICI treatment.

On the opposite end of the spectrum, cancer cachexia is also a key subject of study. It is characterized by weight loss and is associated with worse clinical outcomes. A cachexia mouse model found that weight loss can lead to more clearance of immune checkpoint antibodies.

Still, much more work needs to be done. “For now, how BMI, obesity, and cachexia relate to other factors, for instance the microbiome and tumor immunogenicity, are still not fully understood,” Dr. Owen said.
 

The study data

The researchers analyzed data from 688 patients with metastatic cancer treated at their center between 2011 and 2017. 94% were White and 5% were Black. 41% were female and the mean age was 61.9 years. The mean BMI was 28.8 kg/m2; 40% of patients had melanoma, 23% had non–small cell lung cancer, 10% had renal cancer, and 27% had another form of cancer.

For every unit decrease in BMI, the researchers observed a 1.8% decrease in mortality (hazard ratio, 0.982; P = .007). Patients with a BMI of 40 or above had better survival than all other patients grouped by 5 BMI increments (that is, 35-40, 30-35, etc.). When separated by sex, males had a significant decrease in mortality for every increase in BMI unit (HR, 0.964; P = .004), but there was no significant difference among women (HR, 1.003; P = .706). The relationship in men held up after adjustment for Eastern Cooperative Oncology Group score, line of therapy, and cancer type (HR, 0.979; P = .0308). The researchers also looked at a separate cohort of 185 normal weight and 15 obese (BMI ≥ 40) NSCLC patients. Median survival was 27.5 months in the obese group and 9.1 months in the normal weight group (HR, 0.474; 95% CI, 0.232-0.969).

Dr. Owen has received research funding through his institution from Bristol-Myers Squibb, Genentech, Pfizer, Palobiofarma, and Onc.AI.

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Sotorasib superior to docetaxel in KRAS G12C–mutated NSCLC

Article Type
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Thu, 09/22/2022 - 11:30

For patients with non–small cell lung cancers (NSCLC) bearing the KRAS G12C mutation that have progressed on prior therapies, the first-in-class KRAS G12C inhibitor sotorasib (Lumykras) was associated with better progression-free survival (PFS) and objective response rates than docetaxel in the randomized, phase 3 CodeBreaK 200 trial.

­Among 345 patients who had experienced disease progression after prior platinum-based chemotherapy and an immune checkpoint inhibitor, 1-year PFS rates at a median follow-up of 17.7 months were 24.8% for patients randomized to receive sotorasib versus 10.1% for patients assigned to docetaxel, reported Melissa L, Johnson, MD, from the Sarah Cannon Research Institute at Tennessee Oncology in Nashville.

“In my opinion, this supports sotorasib as a new second-line standard for patients with KRAS G12C non–small cell lung cancer,” she said in a media briefing prior to her presentation of the data in an oral abstract session at the annual meeting of the European Society for Medical Oncology.
 

First phase 3, randomized, controlled trial

The trial is the first head-to-head, randomized comparison pitting a KRAS G12C inhibitor against the standard of care in patients with NSCLC.

Approximately 30% of patients with NSCLC have KRAS driver mutations, and KRAS G12C–mutant NSCLC comprises an estimated 13% of all NSCLC cases, Dr. Johnson said.

Sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the 2020 ESMO annual meeting. It is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
 

CodeBreaK 200 details

A total of 345 patients from sites in the United States, Europe, Asia and Australia were enrolled and randomly assigned to receive either oral sotorasib 960 mg daily, or intravenous docetaxel 75 mg/m2 every 3 weeks.

As noted before, the trial met its primary endpoint of a statistically significant improvement in PFS with sotorasib as measured by independent central reviewers blinded to study assignment, with a hazard ratio of 0.66 (P = .002). Median PFS with sotorasib was 5.6 months, compared with 4.5 months for docetaxel.

The objective response rate was significantly improved for sotorasib versus docetaxel (28.1% vs. 13.2%, P < .001), as was the disease control rate at 82.5% for sotorasib versus 60.3% for docetaxel. Overall survival was not significantly different between treatment arms, though the study was not powered for this endpoint.

Sotorasib was also superior to docetaxel at forestalling deterioration of patients’ global health status, physical functioning, and cancer-related symptoms such as dyspnea and cough. There was no significant difference between the study arms in reported chest pain, however.

Grade 3 or greater treatment-related adverse events occurred in 33.1% of patients with sotorasib, compared with 40.4% of patients on docetaxel.
 

‘Tremendous advance’

“I think the conduct of this study is impressive, it’s well designed, it was well run, any imbalances really favored the control arm, and I think that this advance is relevant not just for performance status 0 and 1 KRAS G12C–mutant patients, but even beyond, to performance status 2 and perhaps even performance status 3,” commented Natasha Leighl, MD, MMSc, from the Princess Margaret Cancer Center, Toronto, the invited discussant.

Comparing the drug performance of the respective arms, Dr. Leighl said that “I don’t think I’ve ever seen such good outcomes in a randomized trial with the chemotherapy, but unfortunately sotorasib performed a little bit less well than we had hoped.”

Nonetheless, “I think CodeBreaK 200 is a tremendous advance for patients. It is a confirmatory positive trial, and I think sotorasib is the new standard of care in patients who have received chemo and immunotherapy for KRAS G12C–mutant lung cancer,” she said.

CodeBreaK 200 was supported by Amgen. Dr. Johnson disclosed a consulting and advisory role with payments to her institution from Amgen and others. Dr. Leighl disclosed institutional grant funding and personal honoraria from Amgen and others.

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For patients with non–small cell lung cancers (NSCLC) bearing the KRAS G12C mutation that have progressed on prior therapies, the first-in-class KRAS G12C inhibitor sotorasib (Lumykras) was associated with better progression-free survival (PFS) and objective response rates than docetaxel in the randomized, phase 3 CodeBreaK 200 trial.

­Among 345 patients who had experienced disease progression after prior platinum-based chemotherapy and an immune checkpoint inhibitor, 1-year PFS rates at a median follow-up of 17.7 months were 24.8% for patients randomized to receive sotorasib versus 10.1% for patients assigned to docetaxel, reported Melissa L, Johnson, MD, from the Sarah Cannon Research Institute at Tennessee Oncology in Nashville.

“In my opinion, this supports sotorasib as a new second-line standard for patients with KRAS G12C non–small cell lung cancer,” she said in a media briefing prior to her presentation of the data in an oral abstract session at the annual meeting of the European Society for Medical Oncology.
 

First phase 3, randomized, controlled trial

The trial is the first head-to-head, randomized comparison pitting a KRAS G12C inhibitor against the standard of care in patients with NSCLC.

Approximately 30% of patients with NSCLC have KRAS driver mutations, and KRAS G12C–mutant NSCLC comprises an estimated 13% of all NSCLC cases, Dr. Johnson said.

Sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the 2020 ESMO annual meeting. It is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
 

CodeBreaK 200 details

A total of 345 patients from sites in the United States, Europe, Asia and Australia were enrolled and randomly assigned to receive either oral sotorasib 960 mg daily, or intravenous docetaxel 75 mg/m2 every 3 weeks.

As noted before, the trial met its primary endpoint of a statistically significant improvement in PFS with sotorasib as measured by independent central reviewers blinded to study assignment, with a hazard ratio of 0.66 (P = .002). Median PFS with sotorasib was 5.6 months, compared with 4.5 months for docetaxel.

The objective response rate was significantly improved for sotorasib versus docetaxel (28.1% vs. 13.2%, P < .001), as was the disease control rate at 82.5% for sotorasib versus 60.3% for docetaxel. Overall survival was not significantly different between treatment arms, though the study was not powered for this endpoint.

Sotorasib was also superior to docetaxel at forestalling deterioration of patients’ global health status, physical functioning, and cancer-related symptoms such as dyspnea and cough. There was no significant difference between the study arms in reported chest pain, however.

Grade 3 or greater treatment-related adverse events occurred in 33.1% of patients with sotorasib, compared with 40.4% of patients on docetaxel.
 

‘Tremendous advance’

“I think the conduct of this study is impressive, it’s well designed, it was well run, any imbalances really favored the control arm, and I think that this advance is relevant not just for performance status 0 and 1 KRAS G12C–mutant patients, but even beyond, to performance status 2 and perhaps even performance status 3,” commented Natasha Leighl, MD, MMSc, from the Princess Margaret Cancer Center, Toronto, the invited discussant.

Comparing the drug performance of the respective arms, Dr. Leighl said that “I don’t think I’ve ever seen such good outcomes in a randomized trial with the chemotherapy, but unfortunately sotorasib performed a little bit less well than we had hoped.”

Nonetheless, “I think CodeBreaK 200 is a tremendous advance for patients. It is a confirmatory positive trial, and I think sotorasib is the new standard of care in patients who have received chemo and immunotherapy for KRAS G12C–mutant lung cancer,” she said.

CodeBreaK 200 was supported by Amgen. Dr. Johnson disclosed a consulting and advisory role with payments to her institution from Amgen and others. Dr. Leighl disclosed institutional grant funding and personal honoraria from Amgen and others.

For patients with non–small cell lung cancers (NSCLC) bearing the KRAS G12C mutation that have progressed on prior therapies, the first-in-class KRAS G12C inhibitor sotorasib (Lumykras) was associated with better progression-free survival (PFS) and objective response rates than docetaxel in the randomized, phase 3 CodeBreaK 200 trial.

­Among 345 patients who had experienced disease progression after prior platinum-based chemotherapy and an immune checkpoint inhibitor, 1-year PFS rates at a median follow-up of 17.7 months were 24.8% for patients randomized to receive sotorasib versus 10.1% for patients assigned to docetaxel, reported Melissa L, Johnson, MD, from the Sarah Cannon Research Institute at Tennessee Oncology in Nashville.

“In my opinion, this supports sotorasib as a new second-line standard for patients with KRAS G12C non–small cell lung cancer,” she said in a media briefing prior to her presentation of the data in an oral abstract session at the annual meeting of the European Society for Medical Oncology.
 

First phase 3, randomized, controlled trial

The trial is the first head-to-head, randomized comparison pitting a KRAS G12C inhibitor against the standard of care in patients with NSCLC.

Approximately 30% of patients with NSCLC have KRAS driver mutations, and KRAS G12C–mutant NSCLC comprises an estimated 13% of all NSCLC cases, Dr. Johnson said.

Sotorasib was hailed as “a triumph of drug discovery” when early results of the trial were reported at the 2020 ESMO annual meeting. It is a small-molecule, specific, and irreversible inhibitor of KRAS that interacts with a “pocket” on the gene’s surface that is present only in an inactive conformation of KRAS. The drug inhibits oncogenic signaling and tumorigenesis by preventing cycling of the oncogene into its active form.
 

CodeBreaK 200 details

A total of 345 patients from sites in the United States, Europe, Asia and Australia were enrolled and randomly assigned to receive either oral sotorasib 960 mg daily, or intravenous docetaxel 75 mg/m2 every 3 weeks.

As noted before, the trial met its primary endpoint of a statistically significant improvement in PFS with sotorasib as measured by independent central reviewers blinded to study assignment, with a hazard ratio of 0.66 (P = .002). Median PFS with sotorasib was 5.6 months, compared with 4.5 months for docetaxel.

The objective response rate was significantly improved for sotorasib versus docetaxel (28.1% vs. 13.2%, P < .001), as was the disease control rate at 82.5% for sotorasib versus 60.3% for docetaxel. Overall survival was not significantly different between treatment arms, though the study was not powered for this endpoint.

Sotorasib was also superior to docetaxel at forestalling deterioration of patients’ global health status, physical functioning, and cancer-related symptoms such as dyspnea and cough. There was no significant difference between the study arms in reported chest pain, however.

Grade 3 or greater treatment-related adverse events occurred in 33.1% of patients with sotorasib, compared with 40.4% of patients on docetaxel.
 

‘Tremendous advance’

“I think the conduct of this study is impressive, it’s well designed, it was well run, any imbalances really favored the control arm, and I think that this advance is relevant not just for performance status 0 and 1 KRAS G12C–mutant patients, but even beyond, to performance status 2 and perhaps even performance status 3,” commented Natasha Leighl, MD, MMSc, from the Princess Margaret Cancer Center, Toronto, the invited discussant.

Comparing the drug performance of the respective arms, Dr. Leighl said that “I don’t think I’ve ever seen such good outcomes in a randomized trial with the chemotherapy, but unfortunately sotorasib performed a little bit less well than we had hoped.”

Nonetheless, “I think CodeBreaK 200 is a tremendous advance for patients. It is a confirmatory positive trial, and I think sotorasib is the new standard of care in patients who have received chemo and immunotherapy for KRAS G12C–mutant lung cancer,” she said.

CodeBreaK 200 was supported by Amgen. Dr. Johnson disclosed a consulting and advisory role with payments to her institution from Amgen and others. Dr. Leighl disclosed institutional grant funding and personal honoraria from Amgen and others.

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Night owls may have greater risks of T2D and CVD

Article Type
Changed
Fri, 09/23/2022 - 08:51

People who stay up late may be at greater risk for type 2 diabetes and cardiovascular disease than those who turn in early, according to new research.

In the study involving 51 people, night owls metabolized fat less efficiently, showed less insulin sensitivity, and demonstrated lower physical fitness than early birds, lead author Steven K. Malin, PhD, of Rutgers University, New Brunswick, N.J., and colleagues reported.

Dr. Steven K. Malin

Prior publications have suggested that night owls, formally known as “late chronotypes,” have an increased risk of obesity, type 2 diabetes, and cardiovascular disease, Dr. Malin said in an interview. But no previous research involved the gold-standard measurement tools used in this study, including euglycemic clamp and indirect calorimetry to quantify fat metabolism.

Dr. Malin also noted that this is the first study of its kind to characterize metabolism during both rest and exercise.

The study, published in Experimental Physiology, involved 24 early birds and 27 night owls classified by the Morning-Eveningness Questionnaire. All participants were sedentary, reporting less than one hour of structured exercise per week, and had metabolic syndrome according to Adult Treatment Panel III report criteria. Groups were otherwise demographically similar, with average ages in each group of approximately 54-55 years.

Compared with night owls, early birds were more physically active during the morning into midday. During exercise, they metabolized more fat and demonstrated greater physical fitness based on VO2max readings. At rest, early birds also came out ahead – they had higher fat oxidation and non–oxidative glucose disposal, suggesting more sensitivity to insulin.

“Collectively, this work highlights and supports chronotype as a potential risk factor related to type 2 diabetes and cardiovascular disease risk,” the investigators concluded.
 

Night owls have less metabolic control

Jed Friedman, PhD, director of OU Health Harold Hamm Diabetes Center at the University of Oklahoma Health Sciences Center, Oklahoma City, praised the study for the size of the groups the researchers compared with each other and how well matched those groups were, as well as the “state-of-the-art” measurement tools employed.

Dr. Jed Friedman

The findings show that night owls have “less metabolic control,” Dr. Friedman said in an interview.

“That’s a term that’s frequently invoked in [regard to] prediabetes,” he said. “Blood sugar goes up, because when you’re eating a high carbohydrate diet, your cells aren’t metabolizing sugar properly. That tends to raise your risk for a lot of diseases.”

Dr. Friedman added that the findings align with those of previous studies that have linked less sleep with changes in brain biology, and therefore behavior, especially in dietary choices.

“When you’re tired, the mechanisms for appetite control go haywire,” Dr. Friedman explained. “The evidence suggests that sugar is the primary driver for what people eat when they’re tired. That obviously has implications for diabetes and metabolic syndrome. So sleeping more really can help you control cravings.”

Dr. Friedman also noted that people who are tired tend to engage in less physical activity, further increasing their risk of metabolic issues. To control this risk, he advised people to return to their circadian rhythms, which could mean forgetting the midnight snack.

“Having a daily pattern that’s in sync with chronicity, or these daily rhythms, is associated with greater health,” Dr. Friedman said. “We’re not really made to eat at night. I think this [study] kind of reinforces that.”
 

 

 

Can a night owl become an early bird?

When asked if a person’s natural circadian rhythm can be later, Dr. Malin responded that chronotypes may be dictated by genetics and age, as well as external drivers like work schedule. For these reasons, it’s “tricky” to answer whether night owls can turn into early birds and reap the potential health benefits of making that shift.

“Given that so many life factors can influence what our routine entails, it’s hard to know if we [can] truly change our chronotype or if rather we [can] learn to manage,” Dr. Malin said. “In either case, there is some work that suggests people can adopt earlier bedtimes and waketimes through practical recommendations.”

Specifically, he suggested increasing physical activity during the day, and adjusting bedtimes gradually by 15-minute increments.

“Go to bed 15 minutes earlier then wake up 15 minutes earlier,” Dr. Malin said. “In time, and depending on how things are going, this can expand to another 15-minute window. Then, during the earlier time waking up, a person can engage in light physical activity to help with promoting general fitness. If they can get outside with sunlight, that would be great too, as the natural sunlight would provide cues to the circadian system to adjust.”

The study was supported by the National Institutes of Health. The investigators and Dr. Friedman disclosed no conflicts of interest.

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People who stay up late may be at greater risk for type 2 diabetes and cardiovascular disease than those who turn in early, according to new research.

In the study involving 51 people, night owls metabolized fat less efficiently, showed less insulin sensitivity, and demonstrated lower physical fitness than early birds, lead author Steven K. Malin, PhD, of Rutgers University, New Brunswick, N.J., and colleagues reported.

Dr. Steven K. Malin

Prior publications have suggested that night owls, formally known as “late chronotypes,” have an increased risk of obesity, type 2 diabetes, and cardiovascular disease, Dr. Malin said in an interview. But no previous research involved the gold-standard measurement tools used in this study, including euglycemic clamp and indirect calorimetry to quantify fat metabolism.

Dr. Malin also noted that this is the first study of its kind to characterize metabolism during both rest and exercise.

The study, published in Experimental Physiology, involved 24 early birds and 27 night owls classified by the Morning-Eveningness Questionnaire. All participants were sedentary, reporting less than one hour of structured exercise per week, and had metabolic syndrome according to Adult Treatment Panel III report criteria. Groups were otherwise demographically similar, with average ages in each group of approximately 54-55 years.

Compared with night owls, early birds were more physically active during the morning into midday. During exercise, they metabolized more fat and demonstrated greater physical fitness based on VO2max readings. At rest, early birds also came out ahead – they had higher fat oxidation and non–oxidative glucose disposal, suggesting more sensitivity to insulin.

“Collectively, this work highlights and supports chronotype as a potential risk factor related to type 2 diabetes and cardiovascular disease risk,” the investigators concluded.
 

Night owls have less metabolic control

Jed Friedman, PhD, director of OU Health Harold Hamm Diabetes Center at the University of Oklahoma Health Sciences Center, Oklahoma City, praised the study for the size of the groups the researchers compared with each other and how well matched those groups were, as well as the “state-of-the-art” measurement tools employed.

Dr. Jed Friedman

The findings show that night owls have “less metabolic control,” Dr. Friedman said in an interview.

“That’s a term that’s frequently invoked in [regard to] prediabetes,” he said. “Blood sugar goes up, because when you’re eating a high carbohydrate diet, your cells aren’t metabolizing sugar properly. That tends to raise your risk for a lot of diseases.”

Dr. Friedman added that the findings align with those of previous studies that have linked less sleep with changes in brain biology, and therefore behavior, especially in dietary choices.

“When you’re tired, the mechanisms for appetite control go haywire,” Dr. Friedman explained. “The evidence suggests that sugar is the primary driver for what people eat when they’re tired. That obviously has implications for diabetes and metabolic syndrome. So sleeping more really can help you control cravings.”

Dr. Friedman also noted that people who are tired tend to engage in less physical activity, further increasing their risk of metabolic issues. To control this risk, he advised people to return to their circadian rhythms, which could mean forgetting the midnight snack.

“Having a daily pattern that’s in sync with chronicity, or these daily rhythms, is associated with greater health,” Dr. Friedman said. “We’re not really made to eat at night. I think this [study] kind of reinforces that.”
 

 

 

Can a night owl become an early bird?

When asked if a person’s natural circadian rhythm can be later, Dr. Malin responded that chronotypes may be dictated by genetics and age, as well as external drivers like work schedule. For these reasons, it’s “tricky” to answer whether night owls can turn into early birds and reap the potential health benefits of making that shift.

“Given that so many life factors can influence what our routine entails, it’s hard to know if we [can] truly change our chronotype or if rather we [can] learn to manage,” Dr. Malin said. “In either case, there is some work that suggests people can adopt earlier bedtimes and waketimes through practical recommendations.”

Specifically, he suggested increasing physical activity during the day, and adjusting bedtimes gradually by 15-minute increments.

“Go to bed 15 minutes earlier then wake up 15 minutes earlier,” Dr. Malin said. “In time, and depending on how things are going, this can expand to another 15-minute window. Then, during the earlier time waking up, a person can engage in light physical activity to help with promoting general fitness. If they can get outside with sunlight, that would be great too, as the natural sunlight would provide cues to the circadian system to adjust.”

The study was supported by the National Institutes of Health. The investigators and Dr. Friedman disclosed no conflicts of interest.

People who stay up late may be at greater risk for type 2 diabetes and cardiovascular disease than those who turn in early, according to new research.

In the study involving 51 people, night owls metabolized fat less efficiently, showed less insulin sensitivity, and demonstrated lower physical fitness than early birds, lead author Steven K. Malin, PhD, of Rutgers University, New Brunswick, N.J., and colleagues reported.

Dr. Steven K. Malin

Prior publications have suggested that night owls, formally known as “late chronotypes,” have an increased risk of obesity, type 2 diabetes, and cardiovascular disease, Dr. Malin said in an interview. But no previous research involved the gold-standard measurement tools used in this study, including euglycemic clamp and indirect calorimetry to quantify fat metabolism.

Dr. Malin also noted that this is the first study of its kind to characterize metabolism during both rest and exercise.

The study, published in Experimental Physiology, involved 24 early birds and 27 night owls classified by the Morning-Eveningness Questionnaire. All participants were sedentary, reporting less than one hour of structured exercise per week, and had metabolic syndrome according to Adult Treatment Panel III report criteria. Groups were otherwise demographically similar, with average ages in each group of approximately 54-55 years.

Compared with night owls, early birds were more physically active during the morning into midday. During exercise, they metabolized more fat and demonstrated greater physical fitness based on VO2max readings. At rest, early birds also came out ahead – they had higher fat oxidation and non–oxidative glucose disposal, suggesting more sensitivity to insulin.

“Collectively, this work highlights and supports chronotype as a potential risk factor related to type 2 diabetes and cardiovascular disease risk,” the investigators concluded.
 

Night owls have less metabolic control

Jed Friedman, PhD, director of OU Health Harold Hamm Diabetes Center at the University of Oklahoma Health Sciences Center, Oklahoma City, praised the study for the size of the groups the researchers compared with each other and how well matched those groups were, as well as the “state-of-the-art” measurement tools employed.

Dr. Jed Friedman

The findings show that night owls have “less metabolic control,” Dr. Friedman said in an interview.

“That’s a term that’s frequently invoked in [regard to] prediabetes,” he said. “Blood sugar goes up, because when you’re eating a high carbohydrate diet, your cells aren’t metabolizing sugar properly. That tends to raise your risk for a lot of diseases.”

Dr. Friedman added that the findings align with those of previous studies that have linked less sleep with changes in brain biology, and therefore behavior, especially in dietary choices.

“When you’re tired, the mechanisms for appetite control go haywire,” Dr. Friedman explained. “The evidence suggests that sugar is the primary driver for what people eat when they’re tired. That obviously has implications for diabetes and metabolic syndrome. So sleeping more really can help you control cravings.”

Dr. Friedman also noted that people who are tired tend to engage in less physical activity, further increasing their risk of metabolic issues. To control this risk, he advised people to return to their circadian rhythms, which could mean forgetting the midnight snack.

“Having a daily pattern that’s in sync with chronicity, or these daily rhythms, is associated with greater health,” Dr. Friedman said. “We’re not really made to eat at night. I think this [study] kind of reinforces that.”
 

 

 

Can a night owl become an early bird?

When asked if a person’s natural circadian rhythm can be later, Dr. Malin responded that chronotypes may be dictated by genetics and age, as well as external drivers like work schedule. For these reasons, it’s “tricky” to answer whether night owls can turn into early birds and reap the potential health benefits of making that shift.

“Given that so many life factors can influence what our routine entails, it’s hard to know if we [can] truly change our chronotype or if rather we [can] learn to manage,” Dr. Malin said. “In either case, there is some work that suggests people can adopt earlier bedtimes and waketimes through practical recommendations.”

Specifically, he suggested increasing physical activity during the day, and adjusting bedtimes gradually by 15-minute increments.

“Go to bed 15 minutes earlier then wake up 15 minutes earlier,” Dr. Malin said. “In time, and depending on how things are going, this can expand to another 15-minute window. Then, during the earlier time waking up, a person can engage in light physical activity to help with promoting general fitness. If they can get outside with sunlight, that would be great too, as the natural sunlight would provide cues to the circadian system to adjust.”

The study was supported by the National Institutes of Health. The investigators and Dr. Friedman disclosed no conflicts of interest.

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Early bird gets the worm, night owl gets the diabetes

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Changed
Thu, 09/22/2022 - 09:19

 

Metabolism a player in circadian rhythm section

Are you an early bird, or do you wake up and stare at your phone, wondering why you were up watching “The Crown” until 3 a.m.? Recent research suggests that people who wake up earlier tend to be more active during the day and burn more fat than those who sleep in. Fat builds up in the night owls, putting them at higher risk of type 2 diabetes and heart disease.

The study gives physicians something to think about when assessing a patient’s risk factors. “This could help medical professionals consider another behavioral factor contributing to disease risk,” Steven Malin, PhD, lead author of the study and expert in metabolism at Rutgers University in New Brunswick, N.J., said in The Guardian.

Geber86/E+

For the research, 51 participants were divided into night owls and early birds, depending on their answers to a questionnaire. They were examined, monitored for a week, and assessed while doing various activities. Those who woke up early tended to be more sensitive to insulin and burned off fat faster than those who woke up late, the researchers explained.

“Night owls are reported to have a higher risk of obesity, type 2 diabetes, and cardiovascular disease when compared with early birds,” Dr. Malin said. “A potential explanation is they become misaligned with their circadian rhythm for various reasons, but most notably among adults would be work.”

We all know that we may not be at our best when we throw off our internal clocks by going to sleep late and waking up early. Think about that next time you start another episode on Netflix at 2:57 a.m.
 

Mosquitoes, chemical cocktails, and glass sock beads

We all know that mosquitoes are annoying little disease vectors with a taste for human blood. One of the less-known things about mosquitoes is what attracts them to humans in the first place. It’s so less known that, until now, it was unknown. Oh sure, we knew that odor was involved, and that lactic acid was part of the odor equation, but what are the specific chemicals? Well, there’s carbon dioxide … and ammonia. Those were already known.

Ring Cardé, PhD, an entomologist at the University of California, Riverside, wasn’t convinced. “I suspected there was something undiscovered about the chemistry of odors luring the yellow fever mosquito. I wanted to nail down the exact blend,” he said in a statement from the university.

Dr. Cardé and his associates eventually figured out that the exact chemical cocktail attracting female Aedes aegypti mosquitoes was a combination of carbon dioxide plus two chemicals, 2-ketoglutaric acid and lactic acid. The odor from these chemicals enables mosquitoes to locate and land on their victim and “also encourages probing, the use of piercing mouthparts to find blood,” the university said.

This amazing destination of science is important, but we have to acknowledge the journey as well. To do that we turn to one of Dr. Cardé’s associates, Jan Bello, PhD, formerly of Cal-Riverside and now with insect pest control company Provivi. Turns out that 2-ketoglutaric acid is tricky stuff because the methods typically used to identify chemicals don’t work on it.

Dr. Bello employed a somewhat unorthodox chemical extraction method: He filled his socks with glass beads and walked around with the beads in his socks.

Jan Bello/UCR

“Wearing the beads felt almost like a massage, like squeezing stress balls full of sand, but with your feet,” Dr. Bello said. “The most frustrating part of doing it for a long time is that they would get stuck in between your toes, so it would be uncomfortable after a while.”

We hate when science gets stuck between our toes, but we love it when scientists write their own punchlines.
 

 

 

The MS drugs are better down where it’s wetter, take it from me

The myth of the mermaid is one with hundreds, if not thousands, of years of history. The ancient Greeks had the mythological siren, while the Babylonians depicted kulullû (which were mermen – never let the Babylonians be known as noninclusive) in artwork as far back as 1600 BC. Cultures as far flung as Japan, southern Africa, and New Zealand have folkloric figures similar to the mermaid. It is most decidedly not a creation of western Europe, Hans Christian Andersen, or Disney.

AG Kostenis-Gomeza / University of Bonn

With that mild rant out of the way, let’s move to Germany and a group of researchers from the University of Bonn, who have not created a mermaid. They did, however, add human genes to a zebrafish for research purposes, which feels uncomfortably close. Nothing better than unholy animal-human hybrids, right?

Stick with us here, because the researchers did have a good reason for their gene splicing. Zebrafish and humans both have the GPR17 receptor, which is highly active in nerve tissue. When GPR17 is overactivated, diseases such as multiple sclerosis can develop. Because the zebrafish has this receptor, which performs the same function in its body as in ours, it’s a prime candidate for replacement. Also, zebrafish larvae are transparent, which makes it very easy to observe a drug working.

That said, fish and humans are very far apart, genetically speaking. Big shock right there. But by replacing their GPR17 receptor with ours, the scientists have created a fish that we could test drug candidates on and be assured that they would also work on humans. Actually testing drugs for MS on these humanized zebrafish was beyond the scope of the study, but the researchers said that the new genes function normally in the fish larvae, making them a promising new avenue for MS drug development.

Can we all promise not to tell Disney that human DNA can be spliced into a fish without consequence? Otherwise, we’re just going to have to sit through another “Little Mermaid” adaptation in 30 years, this one in super live-action featuring actual, real-life mermaids. And we’re not ready for that level of man-made horror just yet.
 

Beware of the fly vomit

Picture this: You’re outside at a picnic or barbecue, loading a plate with food. In a brief moment of conversation a fly lands right on top of your sandwich. You shoo it away and think nothing more of it, eating the sandwich anyway. We’ve all been there.

A recent study is making us think again.

John Stoffolano, an entomology professor at the University of Massachusetts, Amherst, claims that too much attention has been focused on pathogen transmission by the biting, blood-feeding flies when really we should be taking note of the nonbiting, or synanthropic, flies we live with, which may have a greater impact on the transmission of pathogens right in our own homes.

arian.suresh/PxHere


Sure, blood-feeding flies can spread pathogens directly, but house flies vomit every time they land on something. Think about that.

The fly that sneakily swooped into your house from a tear in your window screen has just been outside in the neighbor’s garbage or sitting on dog poop and now has who knows what filling its crop, the tank in their body that serves as “a place to store food before it makes its way into the digestive tract where it will get turned into energy for the fly,” Dr. Stoffolano explained in a written statement.

Did that fly land right on the baked potato you were prepping for dinner before you shooed it away? Guess what? Before flying off it emitted excess water that has pathogens from whatever was in its crop. We don’t want to say your potato might have dog poop on it, but you get the idea. The crop doesn’t have a ton of digestive enzymes that would help neutralize pathogens, so whatever that fly regurgitated before buzzing off is still around for you to ingest and there’s not much you can do about it.

More research needs to be done about flies, but at the very least this study should make you think twice before eating that baked potato after a fly has been there.

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Metabolism a player in circadian rhythm section

Are you an early bird, or do you wake up and stare at your phone, wondering why you were up watching “The Crown” until 3 a.m.? Recent research suggests that people who wake up earlier tend to be more active during the day and burn more fat than those who sleep in. Fat builds up in the night owls, putting them at higher risk of type 2 diabetes and heart disease.

The study gives physicians something to think about when assessing a patient’s risk factors. “This could help medical professionals consider another behavioral factor contributing to disease risk,” Steven Malin, PhD, lead author of the study and expert in metabolism at Rutgers University in New Brunswick, N.J., said in The Guardian.

Geber86/E+

For the research, 51 participants were divided into night owls and early birds, depending on their answers to a questionnaire. They were examined, monitored for a week, and assessed while doing various activities. Those who woke up early tended to be more sensitive to insulin and burned off fat faster than those who woke up late, the researchers explained.

“Night owls are reported to have a higher risk of obesity, type 2 diabetes, and cardiovascular disease when compared with early birds,” Dr. Malin said. “A potential explanation is they become misaligned with their circadian rhythm for various reasons, but most notably among adults would be work.”

We all know that we may not be at our best when we throw off our internal clocks by going to sleep late and waking up early. Think about that next time you start another episode on Netflix at 2:57 a.m.
 

Mosquitoes, chemical cocktails, and glass sock beads

We all know that mosquitoes are annoying little disease vectors with a taste for human blood. One of the less-known things about mosquitoes is what attracts them to humans in the first place. It’s so less known that, until now, it was unknown. Oh sure, we knew that odor was involved, and that lactic acid was part of the odor equation, but what are the specific chemicals? Well, there’s carbon dioxide … and ammonia. Those were already known.

Ring Cardé, PhD, an entomologist at the University of California, Riverside, wasn’t convinced. “I suspected there was something undiscovered about the chemistry of odors luring the yellow fever mosquito. I wanted to nail down the exact blend,” he said in a statement from the university.

Dr. Cardé and his associates eventually figured out that the exact chemical cocktail attracting female Aedes aegypti mosquitoes was a combination of carbon dioxide plus two chemicals, 2-ketoglutaric acid and lactic acid. The odor from these chemicals enables mosquitoes to locate and land on their victim and “also encourages probing, the use of piercing mouthparts to find blood,” the university said.

This amazing destination of science is important, but we have to acknowledge the journey as well. To do that we turn to one of Dr. Cardé’s associates, Jan Bello, PhD, formerly of Cal-Riverside and now with insect pest control company Provivi. Turns out that 2-ketoglutaric acid is tricky stuff because the methods typically used to identify chemicals don’t work on it.

Dr. Bello employed a somewhat unorthodox chemical extraction method: He filled his socks with glass beads and walked around with the beads in his socks.

Jan Bello/UCR

“Wearing the beads felt almost like a massage, like squeezing stress balls full of sand, but with your feet,” Dr. Bello said. “The most frustrating part of doing it for a long time is that they would get stuck in between your toes, so it would be uncomfortable after a while.”

We hate when science gets stuck between our toes, but we love it when scientists write their own punchlines.
 

 

 

The MS drugs are better down where it’s wetter, take it from me

The myth of the mermaid is one with hundreds, if not thousands, of years of history. The ancient Greeks had the mythological siren, while the Babylonians depicted kulullû (which were mermen – never let the Babylonians be known as noninclusive) in artwork as far back as 1600 BC. Cultures as far flung as Japan, southern Africa, and New Zealand have folkloric figures similar to the mermaid. It is most decidedly not a creation of western Europe, Hans Christian Andersen, or Disney.

AG Kostenis-Gomeza / University of Bonn

With that mild rant out of the way, let’s move to Germany and a group of researchers from the University of Bonn, who have not created a mermaid. They did, however, add human genes to a zebrafish for research purposes, which feels uncomfortably close. Nothing better than unholy animal-human hybrids, right?

Stick with us here, because the researchers did have a good reason for their gene splicing. Zebrafish and humans both have the GPR17 receptor, which is highly active in nerve tissue. When GPR17 is overactivated, diseases such as multiple sclerosis can develop. Because the zebrafish has this receptor, which performs the same function in its body as in ours, it’s a prime candidate for replacement. Also, zebrafish larvae are transparent, which makes it very easy to observe a drug working.

That said, fish and humans are very far apart, genetically speaking. Big shock right there. But by replacing their GPR17 receptor with ours, the scientists have created a fish that we could test drug candidates on and be assured that they would also work on humans. Actually testing drugs for MS on these humanized zebrafish was beyond the scope of the study, but the researchers said that the new genes function normally in the fish larvae, making them a promising new avenue for MS drug development.

Can we all promise not to tell Disney that human DNA can be spliced into a fish without consequence? Otherwise, we’re just going to have to sit through another “Little Mermaid” adaptation in 30 years, this one in super live-action featuring actual, real-life mermaids. And we’re not ready for that level of man-made horror just yet.
 

Beware of the fly vomit

Picture this: You’re outside at a picnic or barbecue, loading a plate with food. In a brief moment of conversation a fly lands right on top of your sandwich. You shoo it away and think nothing more of it, eating the sandwich anyway. We’ve all been there.

A recent study is making us think again.

John Stoffolano, an entomology professor at the University of Massachusetts, Amherst, claims that too much attention has been focused on pathogen transmission by the biting, blood-feeding flies when really we should be taking note of the nonbiting, or synanthropic, flies we live with, which may have a greater impact on the transmission of pathogens right in our own homes.

arian.suresh/PxHere


Sure, blood-feeding flies can spread pathogens directly, but house flies vomit every time they land on something. Think about that.

The fly that sneakily swooped into your house from a tear in your window screen has just been outside in the neighbor’s garbage or sitting on dog poop and now has who knows what filling its crop, the tank in their body that serves as “a place to store food before it makes its way into the digestive tract where it will get turned into energy for the fly,” Dr. Stoffolano explained in a written statement.

Did that fly land right on the baked potato you were prepping for dinner before you shooed it away? Guess what? Before flying off it emitted excess water that has pathogens from whatever was in its crop. We don’t want to say your potato might have dog poop on it, but you get the idea. The crop doesn’t have a ton of digestive enzymes that would help neutralize pathogens, so whatever that fly regurgitated before buzzing off is still around for you to ingest and there’s not much you can do about it.

More research needs to be done about flies, but at the very least this study should make you think twice before eating that baked potato after a fly has been there.

 

Metabolism a player in circadian rhythm section

Are you an early bird, or do you wake up and stare at your phone, wondering why you were up watching “The Crown” until 3 a.m.? Recent research suggests that people who wake up earlier tend to be more active during the day and burn more fat than those who sleep in. Fat builds up in the night owls, putting them at higher risk of type 2 diabetes and heart disease.

The study gives physicians something to think about when assessing a patient’s risk factors. “This could help medical professionals consider another behavioral factor contributing to disease risk,” Steven Malin, PhD, lead author of the study and expert in metabolism at Rutgers University in New Brunswick, N.J., said in The Guardian.

Geber86/E+

For the research, 51 participants were divided into night owls and early birds, depending on their answers to a questionnaire. They were examined, monitored for a week, and assessed while doing various activities. Those who woke up early tended to be more sensitive to insulin and burned off fat faster than those who woke up late, the researchers explained.

“Night owls are reported to have a higher risk of obesity, type 2 diabetes, and cardiovascular disease when compared with early birds,” Dr. Malin said. “A potential explanation is they become misaligned with their circadian rhythm for various reasons, but most notably among adults would be work.”

We all know that we may not be at our best when we throw off our internal clocks by going to sleep late and waking up early. Think about that next time you start another episode on Netflix at 2:57 a.m.
 

Mosquitoes, chemical cocktails, and glass sock beads

We all know that mosquitoes are annoying little disease vectors with a taste for human blood. One of the less-known things about mosquitoes is what attracts them to humans in the first place. It’s so less known that, until now, it was unknown. Oh sure, we knew that odor was involved, and that lactic acid was part of the odor equation, but what are the specific chemicals? Well, there’s carbon dioxide … and ammonia. Those were already known.

Ring Cardé, PhD, an entomologist at the University of California, Riverside, wasn’t convinced. “I suspected there was something undiscovered about the chemistry of odors luring the yellow fever mosquito. I wanted to nail down the exact blend,” he said in a statement from the university.

Dr. Cardé and his associates eventually figured out that the exact chemical cocktail attracting female Aedes aegypti mosquitoes was a combination of carbon dioxide plus two chemicals, 2-ketoglutaric acid and lactic acid. The odor from these chemicals enables mosquitoes to locate and land on their victim and “also encourages probing, the use of piercing mouthparts to find blood,” the university said.

This amazing destination of science is important, but we have to acknowledge the journey as well. To do that we turn to one of Dr. Cardé’s associates, Jan Bello, PhD, formerly of Cal-Riverside and now with insect pest control company Provivi. Turns out that 2-ketoglutaric acid is tricky stuff because the methods typically used to identify chemicals don’t work on it.

Dr. Bello employed a somewhat unorthodox chemical extraction method: He filled his socks with glass beads and walked around with the beads in his socks.

Jan Bello/UCR

“Wearing the beads felt almost like a massage, like squeezing stress balls full of sand, but with your feet,” Dr. Bello said. “The most frustrating part of doing it for a long time is that they would get stuck in between your toes, so it would be uncomfortable after a while.”

We hate when science gets stuck between our toes, but we love it when scientists write their own punchlines.
 

 

 

The MS drugs are better down where it’s wetter, take it from me

The myth of the mermaid is one with hundreds, if not thousands, of years of history. The ancient Greeks had the mythological siren, while the Babylonians depicted kulullû (which were mermen – never let the Babylonians be known as noninclusive) in artwork as far back as 1600 BC. Cultures as far flung as Japan, southern Africa, and New Zealand have folkloric figures similar to the mermaid. It is most decidedly not a creation of western Europe, Hans Christian Andersen, or Disney.

AG Kostenis-Gomeza / University of Bonn

With that mild rant out of the way, let’s move to Germany and a group of researchers from the University of Bonn, who have not created a mermaid. They did, however, add human genes to a zebrafish for research purposes, which feels uncomfortably close. Nothing better than unholy animal-human hybrids, right?

Stick with us here, because the researchers did have a good reason for their gene splicing. Zebrafish and humans both have the GPR17 receptor, which is highly active in nerve tissue. When GPR17 is overactivated, diseases such as multiple sclerosis can develop. Because the zebrafish has this receptor, which performs the same function in its body as in ours, it’s a prime candidate for replacement. Also, zebrafish larvae are transparent, which makes it very easy to observe a drug working.

That said, fish and humans are very far apart, genetically speaking. Big shock right there. But by replacing their GPR17 receptor with ours, the scientists have created a fish that we could test drug candidates on and be assured that they would also work on humans. Actually testing drugs for MS on these humanized zebrafish was beyond the scope of the study, but the researchers said that the new genes function normally in the fish larvae, making them a promising new avenue for MS drug development.

Can we all promise not to tell Disney that human DNA can be spliced into a fish without consequence? Otherwise, we’re just going to have to sit through another “Little Mermaid” adaptation in 30 years, this one in super live-action featuring actual, real-life mermaids. And we’re not ready for that level of man-made horror just yet.
 

Beware of the fly vomit

Picture this: You’re outside at a picnic or barbecue, loading a plate with food. In a brief moment of conversation a fly lands right on top of your sandwich. You shoo it away and think nothing more of it, eating the sandwich anyway. We’ve all been there.

A recent study is making us think again.

John Stoffolano, an entomology professor at the University of Massachusetts, Amherst, claims that too much attention has been focused on pathogen transmission by the biting, blood-feeding flies when really we should be taking note of the nonbiting, or synanthropic, flies we live with, which may have a greater impact on the transmission of pathogens right in our own homes.

arian.suresh/PxHere


Sure, blood-feeding flies can spread pathogens directly, but house flies vomit every time they land on something. Think about that.

The fly that sneakily swooped into your house from a tear in your window screen has just been outside in the neighbor’s garbage or sitting on dog poop and now has who knows what filling its crop, the tank in their body that serves as “a place to store food before it makes its way into the digestive tract where it will get turned into energy for the fly,” Dr. Stoffolano explained in a written statement.

Did that fly land right on the baked potato you were prepping for dinner before you shooed it away? Guess what? Before flying off it emitted excess water that has pathogens from whatever was in its crop. We don’t want to say your potato might have dog poop on it, but you get the idea. The crop doesn’t have a ton of digestive enzymes that would help neutralize pathogens, so whatever that fly regurgitated before buzzing off is still around for you to ingest and there’s not much you can do about it.

More research needs to be done about flies, but at the very least this study should make you think twice before eating that baked potato after a fly has been there.

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Children and COVID: Weekly cases drop to lowest level since April

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Changed
Tue, 09/20/2022 - 15:29

A hefty decline in new COVID-19 cases among children resulted in the lowest weekly total since late April, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.

The 60,300 new COVID cases reported during the week of Sept. 9-15 were down by almost 28%, compared with the previous week’s 83,000, making for 2 consecutive weeks of declines after almost 91,000 cases were recorded for the week ending Sept. 1, the AAP and CHA said in their latest COVID report of state-level data.

The last time the weekly count was under 60,000 came during the week of April 22-28, when 53,000 were reported by state and territorial health departments in the midst of a 7-week stretch of rising cases. Since that streak ended in mid-May, however, “reported weekly cases have plateaued, fluctuating between a low, now of 60,300 cases and a high of about 112,000,” the AAP noted.

Emergency department visits and hospital admissions, which showed less fluctuation over the summer and more steady rise and fall, have both dropped in recent weeks and are now approaching late May/early June rates, according to data from the Centers for Disease Control and Prevention.

On Sept. 15, for example, ED visits for children under 12 years with diagnosed COVID were just 2.2% of all visits, lower than at any time since May 19 and down from a summer high of 6.8% in late July. Hospital admissions for children aged 0-17 years also rose steadily through June and July, reaching 0.46 per 100,000 population on July 30, but have since slipped to 0.29 per 100,000 as of Sept. 17, the CDC said on its COVID Data Tracker.
 

Vaccination continues to be a tough sell

Vaccination activity among the most recently eligible age group, in the meantime, remains tepid. Just 6.0% of children under age 5 had received at least one dose of COVID-19 vaccine as of Sept. 13, about 3 months since its final approval in June, and 1.6% were fully vaccinated. For the two older groups of children with separate vaccine approvals, 31.5% of those aged 5-11 years and 43.3% of those aged 12-15 had received at least one dose 3 months after their vaccinations began, the CDC data show.

In the 2 weeks ending Sept. 14, almost 59,000 children under age 5 received their initial COVID-19 vaccine dose, as did 28,000 5- to 11-year-olds and 14,000 children aged 12-17. Children under age 5 years represented almost 20% of all Americans getting a first dose during Sept. 1-14, compared with 9.7% for those aged 5-11 and 4.8% for the 12- to 17-year-olds, the CDC said.

At the state level, children under age 5 years in the District of Columbia, where 28% have received at least one dose, and Vermont, at 24%, are the most likely to be vaccinated. The states with the lowest rates in this age group are Alabama, Louisiana, and Mississippi, all of which are at 2%. Vermont and D.C. have the highest rates for ages 5-11 at 70% each, and Alabama (17%) is the lowest, while D.C. (100%), Rhode Island (99%), and Massachusetts (99%) are highest for children aged 12-17 years and Wyoming (41%) is the lowest, the AAP said in a separate report.

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A hefty decline in new COVID-19 cases among children resulted in the lowest weekly total since late April, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.

The 60,300 new COVID cases reported during the week of Sept. 9-15 were down by almost 28%, compared with the previous week’s 83,000, making for 2 consecutive weeks of declines after almost 91,000 cases were recorded for the week ending Sept. 1, the AAP and CHA said in their latest COVID report of state-level data.

The last time the weekly count was under 60,000 came during the week of April 22-28, when 53,000 were reported by state and territorial health departments in the midst of a 7-week stretch of rising cases. Since that streak ended in mid-May, however, “reported weekly cases have plateaued, fluctuating between a low, now of 60,300 cases and a high of about 112,000,” the AAP noted.

Emergency department visits and hospital admissions, which showed less fluctuation over the summer and more steady rise and fall, have both dropped in recent weeks and are now approaching late May/early June rates, according to data from the Centers for Disease Control and Prevention.

On Sept. 15, for example, ED visits for children under 12 years with diagnosed COVID were just 2.2% of all visits, lower than at any time since May 19 and down from a summer high of 6.8% in late July. Hospital admissions for children aged 0-17 years also rose steadily through June and July, reaching 0.46 per 100,000 population on July 30, but have since slipped to 0.29 per 100,000 as of Sept. 17, the CDC said on its COVID Data Tracker.
 

Vaccination continues to be a tough sell

Vaccination activity among the most recently eligible age group, in the meantime, remains tepid. Just 6.0% of children under age 5 had received at least one dose of COVID-19 vaccine as of Sept. 13, about 3 months since its final approval in June, and 1.6% were fully vaccinated. For the two older groups of children with separate vaccine approvals, 31.5% of those aged 5-11 years and 43.3% of those aged 12-15 had received at least one dose 3 months after their vaccinations began, the CDC data show.

In the 2 weeks ending Sept. 14, almost 59,000 children under age 5 received their initial COVID-19 vaccine dose, as did 28,000 5- to 11-year-olds and 14,000 children aged 12-17. Children under age 5 years represented almost 20% of all Americans getting a first dose during Sept. 1-14, compared with 9.7% for those aged 5-11 and 4.8% for the 12- to 17-year-olds, the CDC said.

At the state level, children under age 5 years in the District of Columbia, where 28% have received at least one dose, and Vermont, at 24%, are the most likely to be vaccinated. The states with the lowest rates in this age group are Alabama, Louisiana, and Mississippi, all of which are at 2%. Vermont and D.C. have the highest rates for ages 5-11 at 70% each, and Alabama (17%) is the lowest, while D.C. (100%), Rhode Island (99%), and Massachusetts (99%) are highest for children aged 12-17 years and Wyoming (41%) is the lowest, the AAP said in a separate report.

A hefty decline in new COVID-19 cases among children resulted in the lowest weekly total since late April, according to a report from the American Academy of Pediatrics and the Children’s Hospital Association.

The 60,300 new COVID cases reported during the week of Sept. 9-15 were down by almost 28%, compared with the previous week’s 83,000, making for 2 consecutive weeks of declines after almost 91,000 cases were recorded for the week ending Sept. 1, the AAP and CHA said in their latest COVID report of state-level data.

The last time the weekly count was under 60,000 came during the week of April 22-28, when 53,000 were reported by state and territorial health departments in the midst of a 7-week stretch of rising cases. Since that streak ended in mid-May, however, “reported weekly cases have plateaued, fluctuating between a low, now of 60,300 cases and a high of about 112,000,” the AAP noted.

Emergency department visits and hospital admissions, which showed less fluctuation over the summer and more steady rise and fall, have both dropped in recent weeks and are now approaching late May/early June rates, according to data from the Centers for Disease Control and Prevention.

On Sept. 15, for example, ED visits for children under 12 years with diagnosed COVID were just 2.2% of all visits, lower than at any time since May 19 and down from a summer high of 6.8% in late July. Hospital admissions for children aged 0-17 years also rose steadily through June and July, reaching 0.46 per 100,000 population on July 30, but have since slipped to 0.29 per 100,000 as of Sept. 17, the CDC said on its COVID Data Tracker.
 

Vaccination continues to be a tough sell

Vaccination activity among the most recently eligible age group, in the meantime, remains tepid. Just 6.0% of children under age 5 had received at least one dose of COVID-19 vaccine as of Sept. 13, about 3 months since its final approval in June, and 1.6% were fully vaccinated. For the two older groups of children with separate vaccine approvals, 31.5% of those aged 5-11 years and 43.3% of those aged 12-15 had received at least one dose 3 months after their vaccinations began, the CDC data show.

In the 2 weeks ending Sept. 14, almost 59,000 children under age 5 received their initial COVID-19 vaccine dose, as did 28,000 5- to 11-year-olds and 14,000 children aged 12-17. Children under age 5 years represented almost 20% of all Americans getting a first dose during Sept. 1-14, compared with 9.7% for those aged 5-11 and 4.8% for the 12- to 17-year-olds, the CDC said.

At the state level, children under age 5 years in the District of Columbia, where 28% have received at least one dose, and Vermont, at 24%, are the most likely to be vaccinated. The states with the lowest rates in this age group are Alabama, Louisiana, and Mississippi, all of which are at 2%. Vermont and D.C. have the highest rates for ages 5-11 at 70% each, and Alabama (17%) is the lowest, while D.C. (100%), Rhode Island (99%), and Massachusetts (99%) are highest for children aged 12-17 years and Wyoming (41%) is the lowest, the AAP said in a separate report.

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Thoracic Oncology & Chest Imaging Network

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Changed
Tue, 09/20/2022 - 12:05

 

Lung Cancer Section

What is comprehensive biomarker testing and who should order it? For non–small cell lung cancer, comprehensive biomarker testing is generally defined as testing eligible patients for all biomarkers that direct the use of FDA-approved therapies (Mileham KF, et al. Cancer Med. 2022;11[2]:530. What comprises comprehensive testing has changed over time and will likely continue to change as advances in biomarkers, therapies, and indications for their use continue to evolve. There are also some potential benefits to testing biomarkers without FDA-approved therapies, such as assessing eligibility for treatment as part of a clinical trial or for identifying treatment options that gain FDA-approval in the future. As for who should be responsible for biomarker test ordering, this remains unclear and variable between institutions and practices (Fox AH, et al. Chest. 2021;160[6]:2293). All subspecialties involved, including pulmonology, pathology, interventional radiology, surgery, and oncology, have the potential for knowledge gaps surrounding biomarker testing (Gregg JP, et al. Transl Lung Cancer Res. 2019;8[3]:286; Smeltzer MP, et al. J Thorac Oncol. 2020;15[9]:1434). Those obtaining diagnostic tissue, including pulmonologists, surgeons, and interventional radiologists may not appreciate the downstream use of each biomarker but are in the place to order testing as soon as the time of biopsy. Pathologists may be unaware of clinical aspects to the patient’s case, such as the suspected clinical stage of disease. Oncologists arguably have the best chance of having the expertise to order testing but, ideally, biomarker results would be available by the time a patient meets with an oncologist to discuss treatment options. There is no perfect solution to this question at present, but if you are involved with the diagnosis of lung cancer, you should collaborate with your multidisciplinary team to streamline testing and strategize how to best serve patients. 

Adam Fox, MD

Section Fellow-in-Training

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Lung Cancer Section

What is comprehensive biomarker testing and who should order it? For non–small cell lung cancer, comprehensive biomarker testing is generally defined as testing eligible patients for all biomarkers that direct the use of FDA-approved therapies (Mileham KF, et al. Cancer Med. 2022;11[2]:530. What comprises comprehensive testing has changed over time and will likely continue to change as advances in biomarkers, therapies, and indications for their use continue to evolve. There are also some potential benefits to testing biomarkers without FDA-approved therapies, such as assessing eligibility for treatment as part of a clinical trial or for identifying treatment options that gain FDA-approval in the future. As for who should be responsible for biomarker test ordering, this remains unclear and variable between institutions and practices (Fox AH, et al. Chest. 2021;160[6]:2293). All subspecialties involved, including pulmonology, pathology, interventional radiology, surgery, and oncology, have the potential for knowledge gaps surrounding biomarker testing (Gregg JP, et al. Transl Lung Cancer Res. 2019;8[3]:286; Smeltzer MP, et al. J Thorac Oncol. 2020;15[9]:1434). Those obtaining diagnostic tissue, including pulmonologists, surgeons, and interventional radiologists may not appreciate the downstream use of each biomarker but are in the place to order testing as soon as the time of biopsy. Pathologists may be unaware of clinical aspects to the patient’s case, such as the suspected clinical stage of disease. Oncologists arguably have the best chance of having the expertise to order testing but, ideally, biomarker results would be available by the time a patient meets with an oncologist to discuss treatment options. There is no perfect solution to this question at present, but if you are involved with the diagnosis of lung cancer, you should collaborate with your multidisciplinary team to streamline testing and strategize how to best serve patients. 

Adam Fox, MD

Section Fellow-in-Training

 

Lung Cancer Section

What is comprehensive biomarker testing and who should order it? For non–small cell lung cancer, comprehensive biomarker testing is generally defined as testing eligible patients for all biomarkers that direct the use of FDA-approved therapies (Mileham KF, et al. Cancer Med. 2022;11[2]:530. What comprises comprehensive testing has changed over time and will likely continue to change as advances in biomarkers, therapies, and indications for their use continue to evolve. There are also some potential benefits to testing biomarkers without FDA-approved therapies, such as assessing eligibility for treatment as part of a clinical trial or for identifying treatment options that gain FDA-approval in the future. As for who should be responsible for biomarker test ordering, this remains unclear and variable between institutions and practices (Fox AH, et al. Chest. 2021;160[6]:2293). All subspecialties involved, including pulmonology, pathology, interventional radiology, surgery, and oncology, have the potential for knowledge gaps surrounding biomarker testing (Gregg JP, et al. Transl Lung Cancer Res. 2019;8[3]:286; Smeltzer MP, et al. J Thorac Oncol. 2020;15[9]:1434). Those obtaining diagnostic tissue, including pulmonologists, surgeons, and interventional radiologists may not appreciate the downstream use of each biomarker but are in the place to order testing as soon as the time of biopsy. Pathologists may be unaware of clinical aspects to the patient’s case, such as the suspected clinical stage of disease. Oncologists arguably have the best chance of having the expertise to order testing but, ideally, biomarker results would be available by the time a patient meets with an oncologist to discuss treatment options. There is no perfect solution to this question at present, but if you are involved with the diagnosis of lung cancer, you should collaborate with your multidisciplinary team to streamline testing and strategize how to best serve patients. 

Adam Fox, MD

Section Fellow-in-Training

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