Federal Practitioner

Excess consumption of red meat, whether processed or not, is linked to a greater risk for developing type 2 diabetes. This association was confirmed by a new study published in the American Journal of Clinical Nutrition, a data analysis of nearly 217,000 people who were monitored for three decades as part of several cohort studies. “Our study supports the current dietary recommendations of limiting consumption of red meat and highlights the importance of different alternative sources of protein in preventing type 2 diabetes,” the researchers wrote.

Consumption and risk

The study included men and women who took part in the Nurses’ Health Study, the Nurses’ Health Study II, or the Health Professionals Follow-up Study. Questionnaires were used to collect data every 2-4 years on the frequency of specific food consumption. Information on the onset of diseases and on different health-related aspects was collected every 2 years.

Those who consumed more red meat had a higher body mass index, higher total energy intake, and greater likelihood of being a smoker. They were physically less active and less likely to take multivitamins. In a follow-up of 5.48 million person-years, 22,761 cases of type 2 diabetes were recorded.

The link between consumption of processed and unprocessed red meat (and both combined) and a higher risk of diabetes was observed in all cohorts when analyzed separately and jointly. The people in the highest quintile for combined red meat consumption had a 2% greater risk of developing the disease, compared with those in the lowest quintile. The risk increases associated with processed and unprocessed meat were 51% and 40%, respectively. One additional serving per day of processed red meat was associated with a 1.46-fold greater risk of diabetes. This risk was 1.24 times greater for unprocessed meat and 1.28 times greater for both types combined.

The associations had a linear dose-response relationship and remained firm even after accounting for BMI, which the researchers stressed could be a mediating factor. Finally, the associations were stronger when considering the average cumulative consumption over the 30-year follow-up period and still stronger following the calibration of meat consumption with data extrapolated from food registers. The latter step was taken to account for measurement errors.
 

Alternatives are better

By analyzing alternative protein sources, the researchers discovered that nuts and legumes are associated with the most substantial reductions in diabetes risk. “This discovery is consistent with the evidence that shows that sources of unsaturated fatty acids and antioxidants have beneficial effects on glycemic control, insulin response, and inflammation,” they wrote. By replacing a serving of processed red meat, unprocessed red meat, or a combination of the two with a serving of dry fruit or legumes, the risk of developing diabetes is lowered by 30%, 41%, and 29%, respectively. Replacing red meat with a serving of dairy products is also associated with a reduced risk.

Confirmation

Several biological mechanisms could contribute to the increased risk for type 2 diabetes in people who consume red meat. The high level of saturated fats or the relatively low level of polyunsaturated fats, heme iron, or the high nitrate content in processed red meats could play a role. A strong positive association between consumption of this meat, particularly when processed, and the onset of diabetes has already emerged from other studies, including a trial carried out several years ago in the same cohorts. “In the current study, we wanted to look at this association in the same three cohorts in more detail, with over 9,000 additional cases of type 2 diabetes documented with extensive follow-up,” the researchers explained.

This article was translated from Univadis Italy. A version appeared on Medscape.com.

Excess consumption of red meat, whether processed or not, is linked to a greater risk for developing type 2 diabetes. This association was confirmed by a new study published in the American Journal of Clinical Nutrition, a data analysis of nearly 217,000 people who were monitored for three decades as part of several cohort studies. “Our study supports the current dietary recommendations of limiting consumption of red meat and highlights the importance of different alternative sources of protein in preventing type 2 diabetes,” the researchers wrote.

Consumption and risk

The study included men and women who took part in the Nurses’ Health Study, the Nurses’ Health Study II, or the Health Professionals Follow-up Study. Questionnaires were used to collect data every 2-4 years on the frequency of specific food consumption. Information on the onset of diseases and on different health-related aspects was collected every 2 years.

Those who consumed more red meat had a higher body mass index, higher total energy intake, and greater likelihood of being a smoker. They were physically less active and less likely to take multivitamins. In a follow-up of 5.48 million person-years, 22,761 cases of type 2 diabetes were recorded.

The link between consumption of processed and unprocessed red meat (and both combined) and a higher risk of diabetes was observed in all cohorts when analyzed separately and jointly. The people in the highest quintile for combined red meat consumption had a 2% greater risk of developing the disease, compared with those in the lowest quintile. The risk increases associated with processed and unprocessed meat were 51% and 40%, respectively. One additional serving per day of processed red meat was associated with a 1.46-fold greater risk of diabetes. This risk was 1.24 times greater for unprocessed meat and 1.28 times greater for both types combined.

The associations had a linear dose-response relationship and remained firm even after accounting for BMI, which the researchers stressed could be a mediating factor. Finally, the associations were stronger when considering the average cumulative consumption over the 30-year follow-up period and still stronger following the calibration of meat consumption with data extrapolated from food registers. The latter step was taken to account for measurement errors.
 

Alternatives are better

By analyzing alternative protein sources, the researchers discovered that nuts and legumes are associated with the most substantial reductions in diabetes risk. “This discovery is consistent with the evidence that shows that sources of unsaturated fatty acids and antioxidants have beneficial effects on glycemic control, insulin response, and inflammation,” they wrote. By replacing a serving of processed red meat, unprocessed red meat, or a combination of the two with a serving of dry fruit or legumes, the risk of developing diabetes is lowered by 30%, 41%, and 29%, respectively. Replacing red meat with a serving of dairy products is also associated with a reduced risk.

Confirmation

Several biological mechanisms could contribute to the increased risk for type 2 diabetes in people who consume red meat. The high level of saturated fats or the relatively low level of polyunsaturated fats, heme iron, or the high nitrate content in processed red meats could play a role. A strong positive association between consumption of this meat, particularly when processed, and the onset of diabetes has already emerged from other studies, including a trial carried out several years ago in the same cohorts. “In the current study, we wanted to look at this association in the same three cohorts in more detail, with over 9,000 additional cases of type 2 diabetes documented with extensive follow-up,” the researchers explained.

This article was translated from Univadis Italy. A version appeared on Medscape.com.

Excess consumption of red meat, whether processed or not, is linked to a greater risk for developing type 2 diabetes. This association was confirmed by a new study published in the American Journal of Clinical Nutrition, a data analysis of nearly 217,000 people who were monitored for three decades as part of several cohort studies. “Our study supports the current dietary recommendations of limiting consumption of red meat and highlights the importance of different alternative sources of protein in preventing type 2 diabetes,” the researchers wrote.

Consumption and risk

The study included men and women who took part in the Nurses’ Health Study, the Nurses’ Health Study II, or the Health Professionals Follow-up Study. Questionnaires were used to collect data every 2-4 years on the frequency of specific food consumption. Information on the onset of diseases and on different health-related aspects was collected every 2 years.

Those who consumed more red meat had a higher body mass index, higher total energy intake, and greater likelihood of being a smoker. They were physically less active and less likely to take multivitamins. In a follow-up of 5.48 million person-years, 22,761 cases of type 2 diabetes were recorded.

The link between consumption of processed and unprocessed red meat (and both combined) and a higher risk of diabetes was observed in all cohorts when analyzed separately and jointly. The people in the highest quintile for combined red meat consumption had a 2% greater risk of developing the disease, compared with those in the lowest quintile. The risk increases associated with processed and unprocessed meat were 51% and 40%, respectively. One additional serving per day of processed red meat was associated with a 1.46-fold greater risk of diabetes. This risk was 1.24 times greater for unprocessed meat and 1.28 times greater for both types combined.

The associations had a linear dose-response relationship and remained firm even after accounting for BMI, which the researchers stressed could be a mediating factor. Finally, the associations were stronger when considering the average cumulative consumption over the 30-year follow-up period and still stronger following the calibration of meat consumption with data extrapolated from food registers. The latter step was taken to account for measurement errors.
 

Alternatives are better

By analyzing alternative protein sources, the researchers discovered that nuts and legumes are associated with the most substantial reductions in diabetes risk. “This discovery is consistent with the evidence that shows that sources of unsaturated fatty acids and antioxidants have beneficial effects on glycemic control, insulin response, and inflammation,” they wrote. By replacing a serving of processed red meat, unprocessed red meat, or a combination of the two with a serving of dry fruit or legumes, the risk of developing diabetes is lowered by 30%, 41%, and 29%, respectively. Replacing red meat with a serving of dairy products is also associated with a reduced risk.

Confirmation

Several biological mechanisms could contribute to the increased risk for type 2 diabetes in people who consume red meat. The high level of saturated fats or the relatively low level of polyunsaturated fats, heme iron, or the high nitrate content in processed red meats could play a role. A strong positive association between consumption of this meat, particularly when processed, and the onset of diabetes has already emerged from other studies, including a trial carried out several years ago in the same cohorts. “In the current study, we wanted to look at this association in the same three cohorts in more detail, with over 9,000 additional cases of type 2 diabetes documented with extensive follow-up,” the researchers explained.

This article was translated from Univadis Italy. A version appeared on Medscape.com.

I cock my head at my “new” patient, Sherri, who heads into my consultation room at 8:30 on a rainy Monday morning. She looks vaguely familiar but I can’t quite place her face. “Dr. Messer,” she cries, “don’t you remember me? I was one of your very first patients 15 years ago in Westchester. You had just finished training.” Suddenly it all comes back to me.

Meeting Sherri reminded me of the lesson in humility that my mentor, Dr. Alice Levine, taught our crowded lecture hall so many years ago. Once upon a time, she prided herself on being an infinitely important doctor. One day, she met a patient with empty sella syndrome (literally missing his whole pituitary gland – MRI proven). She fully expected to swoop in to save the patient’s life by expertly replacing each absconded pituitary hormone, but to her shock and delight, an invisible little sliver of pituitary left in his brain allowed him to magically eek out completely normal hormone levels.

Sherri walked into my office so many years ago with a body mass index in the mid-40s. In laymen’s terms, she was morbidly obese. I settled in to discuss her hypertension, diabetes, high cholesterol, fatty liver, polycystic ovary syndrome, etc., but to my shock and delight, her blood pressure and blood work were completely normal. I struggled to keep a neutral face. She was there to discuss hair loss. I had just met my first patient with metabolically healthy obesity (MHO), and I was floored.

Fast-forward 15 years. Sherri sits down across the desk from me and hands me her blood work. Her formerly pristine labs are now peppered with red exclamation points and critically high lab values. Sherri had transitioned from MHO to metabolically unhealthy obesity (MUO).

Early clinical trials concluded that it was possible to have obesity but be metabolically healthy. Approximately 15% of patients living with obesity lack any of the comorbidities typically associated with this phenotype. These findings contributed to the de-emphasis on obesity as a true disease state.

In retrospect, the MHO subtype appears to be much more common in the younger and more active population and is typically quite transient. A new study published in Diabetes, Obesity and Metabolism revealed that people with MHO are 1.5 times more likely to develop diabetes vs. metabolically healthy normal-weight individuals. In addition, people living with obesity and no known metabolic complications still had a 50% higher risk for coronary artery disease. The study also showed that over 50% of people initially characterized as MHO eventually became MUO after a 16-year follow-up.

So once again, all roads lead to semaglutide (Wegovy), the most effective U.S. Food and Drug Administration–approved weight loss medication to date. The incretin class of medications not only helps patients lose 15% or more of their body weight, but it also helps reverse insulin resistance, lower the risk for heart disease, melt away fatty liver, and lower cholesterol levels and blood pressures. While an emphasis on lifestyle changes is always important, these medications are critical adjuncts to conventional therapies.

Sherri’s nearly inevitable transition from MHO to MUO speaks to the pressing need to treat patients living with obesity before the metabolic complications and increased cardiovascular risk develop. Fifteen years ago, I discussed her hair loss for 45 minutes and never mentioned the looming issue. Of course, back then there was no semaglutide or tirzepatide, which was just approved for obesity.

Sherri left our most recent visit with a prescription for Wegovy as well as appointments with a complimentary trainer and dietitian. Now that we have the tools we need, let’s commit to helping our patients achieve true metabolic health. Unlike the magical pituitary patient, metabolically healthy obesity is an illusion – and we owe it to our patients to treat it as such.

Dr. Messer is a clinical assistant professor at Mount Sinai School of Medicine, New York, and an associate professor at Hofstra University, Hempstead, N.Y. She disclosed no relevant conflicts of interest.

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

I cock my head at my “new” patient, Sherri, who heads into my consultation room at 8:30 on a rainy Monday morning. She looks vaguely familiar but I can’t quite place her face. “Dr. Messer,” she cries, “don’t you remember me? I was one of your very first patients 15 years ago in Westchester. You had just finished training.” Suddenly it all comes back to me.

Meeting Sherri reminded me of the lesson in humility that my mentor, Dr. Alice Levine, taught our crowded lecture hall so many years ago. Once upon a time, she prided herself on being an infinitely important doctor. One day, she met a patient with empty sella syndrome (literally missing his whole pituitary gland – MRI proven). She fully expected to swoop in to save the patient’s life by expertly replacing each absconded pituitary hormone, but to her shock and delight, an invisible little sliver of pituitary left in his brain allowed him to magically eek out completely normal hormone levels.

Sherri walked into my office so many years ago with a body mass index in the mid-40s. In laymen’s terms, she was morbidly obese. I settled in to discuss her hypertension, diabetes, high cholesterol, fatty liver, polycystic ovary syndrome, etc., but to my shock and delight, her blood pressure and blood work were completely normal. I struggled to keep a neutral face. She was there to discuss hair loss. I had just met my first patient with metabolically healthy obesity (MHO), and I was floored.

Fast-forward 15 years. Sherri sits down across the desk from me and hands me her blood work. Her formerly pristine labs are now peppered with red exclamation points and critically high lab values. Sherri had transitioned from MHO to metabolically unhealthy obesity (MUO).

Early clinical trials concluded that it was possible to have obesity but be metabolically healthy. Approximately 15% of patients living with obesity lack any of the comorbidities typically associated with this phenotype. These findings contributed to the de-emphasis on obesity as a true disease state.

In retrospect, the MHO subtype appears to be much more common in the younger and more active population and is typically quite transient. A new study published in Diabetes, Obesity and Metabolism revealed that people with MHO are 1.5 times more likely to develop diabetes vs. metabolically healthy normal-weight individuals. In addition, people living with obesity and no known metabolic complications still had a 50% higher risk for coronary artery disease. The study also showed that over 50% of people initially characterized as MHO eventually became MUO after a 16-year follow-up.

So once again, all roads lead to semaglutide (Wegovy), the most effective U.S. Food and Drug Administration–approved weight loss medication to date. The incretin class of medications not only helps patients lose 15% or more of their body weight, but it also helps reverse insulin resistance, lower the risk for heart disease, melt away fatty liver, and lower cholesterol levels and blood pressures. While an emphasis on lifestyle changes is always important, these medications are critical adjuncts to conventional therapies.

Sherri’s nearly inevitable transition from MHO to MUO speaks to the pressing need to treat patients living with obesity before the metabolic complications and increased cardiovascular risk develop. Fifteen years ago, I discussed her hair loss for 45 minutes and never mentioned the looming issue. Of course, back then there was no semaglutide or tirzepatide, which was just approved for obesity.

Sherri left our most recent visit with a prescription for Wegovy as well as appointments with a complimentary trainer and dietitian. Now that we have the tools we need, let’s commit to helping our patients achieve true metabolic health. Unlike the magical pituitary patient, metabolically healthy obesity is an illusion – and we owe it to our patients to treat it as such.

Dr. Messer is a clinical assistant professor at Mount Sinai School of Medicine, New York, and an associate professor at Hofstra University, Hempstead, N.Y. She disclosed no relevant conflicts of interest.

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

I cock my head at my “new” patient, Sherri, who heads into my consultation room at 8:30 on a rainy Monday morning. She looks vaguely familiar but I can’t quite place her face. “Dr. Messer,” she cries, “don’t you remember me? I was one of your very first patients 15 years ago in Westchester. You had just finished training.” Suddenly it all comes back to me.

Meeting Sherri reminded me of the lesson in humility that my mentor, Dr. Alice Levine, taught our crowded lecture hall so many years ago. Once upon a time, she prided herself on being an infinitely important doctor. One day, she met a patient with empty sella syndrome (literally missing his whole pituitary gland – MRI proven). She fully expected to swoop in to save the patient’s life by expertly replacing each absconded pituitary hormone, but to her shock and delight, an invisible little sliver of pituitary left in his brain allowed him to magically eek out completely normal hormone levels.

Sherri walked into my office so many years ago with a body mass index in the mid-40s. In laymen’s terms, she was morbidly obese. I settled in to discuss her hypertension, diabetes, high cholesterol, fatty liver, polycystic ovary syndrome, etc., but to my shock and delight, her blood pressure and blood work were completely normal. I struggled to keep a neutral face. She was there to discuss hair loss. I had just met my first patient with metabolically healthy obesity (MHO), and I was floored.

Fast-forward 15 years. Sherri sits down across the desk from me and hands me her blood work. Her formerly pristine labs are now peppered with red exclamation points and critically high lab values. Sherri had transitioned from MHO to metabolically unhealthy obesity (MUO).

Early clinical trials concluded that it was possible to have obesity but be metabolically healthy. Approximately 15% of patients living with obesity lack any of the comorbidities typically associated with this phenotype. These findings contributed to the de-emphasis on obesity as a true disease state.

In retrospect, the MHO subtype appears to be much more common in the younger and more active population and is typically quite transient. A new study published in Diabetes, Obesity and Metabolism revealed that people with MHO are 1.5 times more likely to develop diabetes vs. metabolically healthy normal-weight individuals. In addition, people living with obesity and no known metabolic complications still had a 50% higher risk for coronary artery disease. The study also showed that over 50% of people initially characterized as MHO eventually became MUO after a 16-year follow-up.

So once again, all roads lead to semaglutide (Wegovy), the most effective U.S. Food and Drug Administration–approved weight loss medication to date. The incretin class of medications not only helps patients lose 15% or more of their body weight, but it also helps reverse insulin resistance, lower the risk for heart disease, melt away fatty liver, and lower cholesterol levels and blood pressures. While an emphasis on lifestyle changes is always important, these medications are critical adjuncts to conventional therapies.

Sherri’s nearly inevitable transition from MHO to MUO speaks to the pressing need to treat patients living with obesity before the metabolic complications and increased cardiovascular risk develop. Fifteen years ago, I discussed her hair loss for 45 minutes and never mentioned the looming issue. Of course, back then there was no semaglutide or tirzepatide, which was just approved for obesity.

Sherri left our most recent visit with a prescription for Wegovy as well as appointments with a complimentary trainer and dietitian. Now that we have the tools we need, let’s commit to helping our patients achieve true metabolic health. Unlike the magical pituitary patient, metabolically healthy obesity is an illusion – and we owe it to our patients to treat it as such.

Dr. Messer is a clinical assistant professor at Mount Sinai School of Medicine, New York, and an associate professor at Hofstra University, Hempstead, N.Y. She disclosed no relevant conflicts of interest.

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

In April 2020, as many Americans prepared to spend the Easter holiday in lockdown, pop star Mariah Carey released a video honoring the “sacrifices and courage” of frontline workers battling COVID-19 – her 1993 hit, “Hero.”

“The sorrow that you know will melt away,” Ms. Carey sang. “When you feel like hope is gone,” the song continued, strength and answers can be found within, and “a hero lies in you.”

For health care professionals, the reality of 2020 wasn’t quite so uplifting. PPE shortages and spillover ICUs had many feeling helpless, exhausted, and overwhelmed. Few if any medical professionals felt their sorrows “melt away.”

We can’t expect depth and nuance from pop songs, but we can find in them the imagery that runs through our culture. The “hero narrative” – the idea that doctors, nurses, and others in health care have superhuman endurance and selflessness – has long been an undercurrent in the medical field.

And yet, without a workforce willing to perform without adequate sleep, food, or time off, the health care system couldn’t function, says Brian Park, MD, MPH, a family medicine physician at Oregon Health & Science University, Portland. At many academic health centers, for example, residents are “the bedrock of the workforce,” he explains. If they didn’t work 80-100 hours per week, those systems wouldn’t exist.

So, how do we look at the health care system in a way that is both grateful and critical, Dr. Park wonders. “How do we honor extreme acts of heroism and also acknowledge that the system sometimes gets by on the acts of heroes to patch up some of the brokenness and fragmentation within it?”

Put simply: What makes “heroism” necessary in the first place?
 

Heroes are determined

Ala Stanford, MD, a pediatric surgeon in Philadelphia, has frequently been called a “health care hero.” Given the title by CNN in 2021, she has received numerous other awards and accolades, featured in Fortune Magazine’s “World’s 50 Greatest Leaders” in 2021 and USA Today’s “Women of the Year” in 2022.

In 2020, Dr. Stanford was sheltering in place and watching “way too much” cable news. “They would play solemn music and show photos of all the people who had died,” she recalls. “I thought, ‘All these people are Black or brown. What is going on?’”

The standard explanation was that people of color were more vulnerable because they were more likely to be essential workers or have chronic health conditions. But Dr. Stanford believed this was only part of the story. The reason she saw that local Black communities had higher positivity rates was because people couldn’t get a COVID test.

Dr. Stanford got call after call from Philadelphians who had been turned away from testing centers. When she questioned colleagues, “they gave me every reason under the sun,” Dr. Stanford says. “It was because someone took public transportation, and they were only testing people in cars, or because they weren’t over 65, or because they didn’t have other comorbid health conditions, or because they weren’t a health care worker, or because they hadn’t traveled to China ...” The list went on.

Dr. Stanford appealed to local, state, and federal health authorities. Finally, she took matters into her own hands. She found tests, packed a van with masks, gowns, and gloves, and drove across the city going door to door. Eventually, she organized testing in the parking lots of Black churches, sometimes seeing more than 400 people per day.

The services were funded entirely through her own bank account and donations until she was eventually awarded a CDC grant through the Coronavirus Aid, Relief, and Economic Security (CARES) Act of 2020 and began to receive contracts from the city.

Since then, Dr. Stanford’s mission has evolved. She and her team provided COVID vaccinations to thousands, and in 2021, opened the Dr. Ala Stanford Center for Health Equity. The center offers primary care for all ages in underserved communities.

Still, Dr. Stanford doesn’t think of herself as a hero, and she stresses that many other people contributed to her success. “I think the world was on fire, and we were all firefighters,” Dr. Stanford says. “Someone said to me, ‘Ala, you ran to the fire and everyone else was running away from it, and you didn’t have to.’ … I feel like I was able to galvanize people to realize the power that they actually had. Maybe independently, they couldn’t do a whole lot, but collectively, we were a force.”
 

Heroes are selfless

Nicole Jackson, RN, an emergency room manager and nurse at Advocate Trinity Hospital in Chicago, was recently honored as a Health Care Hero by the American Red Cross of Greater Chicago.

On June 23, 2022, Jackson’s emergency department was understaffed and struggling with an influx of patients when three gunshot victims arrived. Two needed to be transferred to a trauma center, and one – with multiple gunshot wounds – required a critical care nurse in the ambulance. But the ETA for that transport was 90 minutes, which meant the patient might not survive. Although Ms. Jackson was already working beyond her shift, she rode in the ambulance with the patient herself and probably saved his life.

While this incident stood out to a colleague who nominated her for the Red Cross award, Ms. Jackson finds herself working extra hours fairly often. “Since COVID, that’s pretty much been like any other hospital,” she says. “We’ve had staffing challenges that we work through every day. So, the nurses come, they show up, and they do the best that they can with what we have to keep our patients safe.”

A 2022 survey by McKinsey estimated that by 2025, there could be a gap of 200,000 to 450,000 nurses in the United States. A two-year impact assessment from the American Nurses Foundation found that among more than 12,500 nurses, 40% were considering leaving their positions before the pandemic. By 2022, that number had jumped to 52% with the top reasons being insufficient staffing and negative effects on health and well-being.

Can the “hero narrative” help that situation? Ms. Jackson says she doesn’t see herself as a hero, but the supportive environment and gestures of recognition by staff do make her feel appreciated. These include daily messages offering “kudos” and nominations for the DAISY Award, which she herself received in 2022.

“I have people who I have encouraged to become nurses,” Ms. Jackson says, “and when they saw [the award], they were really excited about becoming a nurse.”
 

Heroes are strong

Jasmine Marcelin, MD, an infectious disease physician with Nebraska Medicine in Omaha, understands the need for heroes as symbols and sources of inspiration. Dr. Marcelin is a fan of the superhero movie genre. There is value, she says, in feeling hope and excitement while watching Superman or Wonder Woman save the day. Who doesn’t want to believe (if only briefly) that the good guys will always win?

In reality, Dr. Marcelin says, “none of us are invincible.” And it’s dangerous to forget that “the people behind the symbols are also human.”

In 2021, Dr. Marcelin gave a TEDx talk entitled, “The Myth of the Health Care Hero.” In it she discussed the extreme physical and mental toll of the pandemic on health care workers and urged her audience to think less about extravagant praise and more about their personal responsibilities. “We don’t want or need to be called heroes,” Dr. Marcelin said. “Right now, our love language is action. We need your help, and we cannot save the world on our own.”

Dr. Marcelin also sees links between superhuman expectations and the high levels of burnout in the medical field.

“It’s a systemic issue,” she explains, “where it requires a revamping and revitalization of the entire psyche of health care to recognize that the people working within this profession are human. And the things that we think and feel and need are the same as anybody else.”
 

Heroes are self-sacrificing 


Well-being, burnout, and disengagement in health care has become a focus for Oregon Health & Science’s Dr. Park, who is also director of RELATE Lab, an organization that aims to make health care more human-centered and equitable through leadership training, research, and community organizing.

For him, hearing neighbors banging pots and pans during the early pandemic was complicated. “The first phase for me was, ‘Thank you. I feel seen. I feel appreciated,’ ” he says. “Yes, I’m wearing a mask. I’m going in. I’m changing in the garage when I come home, so my kid and my partner don’t get sick.”

But after a while, the cheers started to feel like pressure. “Have I done anything heroic today?” Dr. Park asked himself. “Have I been as heroic as my friend who is in the hospital in the ICU? I don’t deserve this, so don’t bang those pots and pans for me.”

When your identity becomes about being a hero, Dr. Park says, when that becomes the standard by which you measure yourself, the result is often a sense of shame.

“I think a lot of people feel ashamed that they feel burnout,” he says, “because they’re supposed to be heroes, putting on their capes and masks. They’re waking up and saying, ‘I’m exhausted, and I can’t play that part today. But I know that’s the social expectation of me.’ “
 

Heroes are noble

There may not be a clear solution, but for many health care professionals, symbolic gestures alone are inadequate and, in certain cases, insulting.

On Doctor’s Day 2023, Alok Patel, MD, a pediatric hospitalist, tweeted a photo of an appreciation “gift” for staff from an unnamed hospital. The small items had metaphorical meanings – a rubber band “as a reminder to stay flexible,” a quarter “as a reminder to ‘call’ for help,” etc.

“Welcome to how you give thanks to ‘health care heroes,’ ” Dr. Patel tweeted.

For Dr. Patel, the issue is not lavish gifts but a need for an attitude shift. He recalls colleagues who felt ashamed asking for mental health services or time off, “because they were bombarded by the hero narrative, by the manufactured pressure that they needed to put their jobs above their own health – because that’s what ‘heroes’ do. I’m willing to bet most physicians would rather receive a sincere email with a transparent plan to better support health care workers than any Doctor’s Day gift,” he says.

In Dr. Marcelin’s TEDx talk, she quotes Spider-Man’s classic adage, “With great power, comes great responsibility.” She argues that this motto doesn’t just apply to those who can fly or deflect bullets; that’s not what heroism is. In fact, most people have their own definition of the word.

For Dr. Stanford, a hero is “someone who is selfless, putting the needs of others before their own.” Dr. Park believes there are no individual heroes. “It’s the work of the collective that’s truly heroic.”

By those standards, clearly anyone can step up, offer help, act with courage and kindness, and be heroic. “We humans, as ordinary as we are, can be extraordinary by using our power to do what’s right,” Dr. Marcelin says, “because there’s no such thing as health care heroes, just good people doing the right thing.”

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

In April 2020, as many Americans prepared to spend the Easter holiday in lockdown, pop star Mariah Carey released a video honoring the “sacrifices and courage” of frontline workers battling COVID-19 – her 1993 hit, “Hero.”

“The sorrow that you know will melt away,” Ms. Carey sang. “When you feel like hope is gone,” the song continued, strength and answers can be found within, and “a hero lies in you.”

For health care professionals, the reality of 2020 wasn’t quite so uplifting. PPE shortages and spillover ICUs had many feeling helpless, exhausted, and overwhelmed. Few if any medical professionals felt their sorrows “melt away.”

We can’t expect depth and nuance from pop songs, but we can find in them the imagery that runs through our culture. The “hero narrative” – the idea that doctors, nurses, and others in health care have superhuman endurance and selflessness – has long been an undercurrent in the medical field.

And yet, without a workforce willing to perform without adequate sleep, food, or time off, the health care system couldn’t function, says Brian Park, MD, MPH, a family medicine physician at Oregon Health & Science University, Portland. At many academic health centers, for example, residents are “the bedrock of the workforce,” he explains. If they didn’t work 80-100 hours per week, those systems wouldn’t exist.

So, how do we look at the health care system in a way that is both grateful and critical, Dr. Park wonders. “How do we honor extreme acts of heroism and also acknowledge that the system sometimes gets by on the acts of heroes to patch up some of the brokenness and fragmentation within it?”

Put simply: What makes “heroism” necessary in the first place?
 

Heroes are determined

Ala Stanford, MD, a pediatric surgeon in Philadelphia, has frequently been called a “health care hero.” Given the title by CNN in 2021, she has received numerous other awards and accolades, featured in Fortune Magazine’s “World’s 50 Greatest Leaders” in 2021 and USA Today’s “Women of the Year” in 2022.

In 2020, Dr. Stanford was sheltering in place and watching “way too much” cable news. “They would play solemn music and show photos of all the people who had died,” she recalls. “I thought, ‘All these people are Black or brown. What is going on?’”

The standard explanation was that people of color were more vulnerable because they were more likely to be essential workers or have chronic health conditions. But Dr. Stanford believed this was only part of the story. The reason she saw that local Black communities had higher positivity rates was because people couldn’t get a COVID test.

Dr. Stanford got call after call from Philadelphians who had been turned away from testing centers. When she questioned colleagues, “they gave me every reason under the sun,” Dr. Stanford says. “It was because someone took public transportation, and they were only testing people in cars, or because they weren’t over 65, or because they didn’t have other comorbid health conditions, or because they weren’t a health care worker, or because they hadn’t traveled to China ...” The list went on.

Dr. Stanford appealed to local, state, and federal health authorities. Finally, she took matters into her own hands. She found tests, packed a van with masks, gowns, and gloves, and drove across the city going door to door. Eventually, she organized testing in the parking lots of Black churches, sometimes seeing more than 400 people per day.

The services were funded entirely through her own bank account and donations until she was eventually awarded a CDC grant through the Coronavirus Aid, Relief, and Economic Security (CARES) Act of 2020 and began to receive contracts from the city.

Since then, Dr. Stanford’s mission has evolved. She and her team provided COVID vaccinations to thousands, and in 2021, opened the Dr. Ala Stanford Center for Health Equity. The center offers primary care for all ages in underserved communities.

Still, Dr. Stanford doesn’t think of herself as a hero, and she stresses that many other people contributed to her success. “I think the world was on fire, and we were all firefighters,” Dr. Stanford says. “Someone said to me, ‘Ala, you ran to the fire and everyone else was running away from it, and you didn’t have to.’ … I feel like I was able to galvanize people to realize the power that they actually had. Maybe independently, they couldn’t do a whole lot, but collectively, we were a force.”
 

Heroes are selfless

Nicole Jackson, RN, an emergency room manager and nurse at Advocate Trinity Hospital in Chicago, was recently honored as a Health Care Hero by the American Red Cross of Greater Chicago.

On June 23, 2022, Jackson’s emergency department was understaffed and struggling with an influx of patients when three gunshot victims arrived. Two needed to be transferred to a trauma center, and one – with multiple gunshot wounds – required a critical care nurse in the ambulance. But the ETA for that transport was 90 minutes, which meant the patient might not survive. Although Ms. Jackson was already working beyond her shift, she rode in the ambulance with the patient herself and probably saved his life.

While this incident stood out to a colleague who nominated her for the Red Cross award, Ms. Jackson finds herself working extra hours fairly often. “Since COVID, that’s pretty much been like any other hospital,” she says. “We’ve had staffing challenges that we work through every day. So, the nurses come, they show up, and they do the best that they can with what we have to keep our patients safe.”

A 2022 survey by McKinsey estimated that by 2025, there could be a gap of 200,000 to 450,000 nurses in the United States. A two-year impact assessment from the American Nurses Foundation found that among more than 12,500 nurses, 40% were considering leaving their positions before the pandemic. By 2022, that number had jumped to 52% with the top reasons being insufficient staffing and negative effects on health and well-being.

Can the “hero narrative” help that situation? Ms. Jackson says she doesn’t see herself as a hero, but the supportive environment and gestures of recognition by staff do make her feel appreciated. These include daily messages offering “kudos” and nominations for the DAISY Award, which she herself received in 2022.

“I have people who I have encouraged to become nurses,” Ms. Jackson says, “and when they saw [the award], they were really excited about becoming a nurse.”
 

Heroes are strong

Jasmine Marcelin, MD, an infectious disease physician with Nebraska Medicine in Omaha, understands the need for heroes as symbols and sources of inspiration. Dr. Marcelin is a fan of the superhero movie genre. There is value, she says, in feeling hope and excitement while watching Superman or Wonder Woman save the day. Who doesn’t want to believe (if only briefly) that the good guys will always win?

In reality, Dr. Marcelin says, “none of us are invincible.” And it’s dangerous to forget that “the people behind the symbols are also human.”

In 2021, Dr. Marcelin gave a TEDx talk entitled, “The Myth of the Health Care Hero.” In it she discussed the extreme physical and mental toll of the pandemic on health care workers and urged her audience to think less about extravagant praise and more about their personal responsibilities. “We don’t want or need to be called heroes,” Dr. Marcelin said. “Right now, our love language is action. We need your help, and we cannot save the world on our own.”

Dr. Marcelin also sees links between superhuman expectations and the high levels of burnout in the medical field.

“It’s a systemic issue,” she explains, “where it requires a revamping and revitalization of the entire psyche of health care to recognize that the people working within this profession are human. And the things that we think and feel and need are the same as anybody else.”
 

Heroes are self-sacrificing 


Well-being, burnout, and disengagement in health care has become a focus for Oregon Health & Science’s Dr. Park, who is also director of RELATE Lab, an organization that aims to make health care more human-centered and equitable through leadership training, research, and community organizing.

For him, hearing neighbors banging pots and pans during the early pandemic was complicated. “The first phase for me was, ‘Thank you. I feel seen. I feel appreciated,’ ” he says. “Yes, I’m wearing a mask. I’m going in. I’m changing in the garage when I come home, so my kid and my partner don’t get sick.”

But after a while, the cheers started to feel like pressure. “Have I done anything heroic today?” Dr. Park asked himself. “Have I been as heroic as my friend who is in the hospital in the ICU? I don’t deserve this, so don’t bang those pots and pans for me.”

When your identity becomes about being a hero, Dr. Park says, when that becomes the standard by which you measure yourself, the result is often a sense of shame.

“I think a lot of people feel ashamed that they feel burnout,” he says, “because they’re supposed to be heroes, putting on their capes and masks. They’re waking up and saying, ‘I’m exhausted, and I can’t play that part today. But I know that’s the social expectation of me.’ “
 

Heroes are noble

There may not be a clear solution, but for many health care professionals, symbolic gestures alone are inadequate and, in certain cases, insulting.

On Doctor’s Day 2023, Alok Patel, MD, a pediatric hospitalist, tweeted a photo of an appreciation “gift” for staff from an unnamed hospital. The small items had metaphorical meanings – a rubber band “as a reminder to stay flexible,” a quarter “as a reminder to ‘call’ for help,” etc.

“Welcome to how you give thanks to ‘health care heroes,’ ” Dr. Patel tweeted.

For Dr. Patel, the issue is not lavish gifts but a need for an attitude shift. He recalls colleagues who felt ashamed asking for mental health services or time off, “because they were bombarded by the hero narrative, by the manufactured pressure that they needed to put their jobs above their own health – because that’s what ‘heroes’ do. I’m willing to bet most physicians would rather receive a sincere email with a transparent plan to better support health care workers than any Doctor’s Day gift,” he says.

In Dr. Marcelin’s TEDx talk, she quotes Spider-Man’s classic adage, “With great power, comes great responsibility.” She argues that this motto doesn’t just apply to those who can fly or deflect bullets; that’s not what heroism is. In fact, most people have their own definition of the word.

For Dr. Stanford, a hero is “someone who is selfless, putting the needs of others before their own.” Dr. Park believes there are no individual heroes. “It’s the work of the collective that’s truly heroic.”

By those standards, clearly anyone can step up, offer help, act with courage and kindness, and be heroic. “We humans, as ordinary as we are, can be extraordinary by using our power to do what’s right,” Dr. Marcelin says, “because there’s no such thing as health care heroes, just good people doing the right thing.”

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

In April 2020, as many Americans prepared to spend the Easter holiday in lockdown, pop star Mariah Carey released a video honoring the “sacrifices and courage” of frontline workers battling COVID-19 – her 1993 hit, “Hero.”

“The sorrow that you know will melt away,” Ms. Carey sang. “When you feel like hope is gone,” the song continued, strength and answers can be found within, and “a hero lies in you.”

For health care professionals, the reality of 2020 wasn’t quite so uplifting. PPE shortages and spillover ICUs had many feeling helpless, exhausted, and overwhelmed. Few if any medical professionals felt their sorrows “melt away.”

We can’t expect depth and nuance from pop songs, but we can find in them the imagery that runs through our culture. The “hero narrative” – the idea that doctors, nurses, and others in health care have superhuman endurance and selflessness – has long been an undercurrent in the medical field.

And yet, without a workforce willing to perform without adequate sleep, food, or time off, the health care system couldn’t function, says Brian Park, MD, MPH, a family medicine physician at Oregon Health & Science University, Portland. At many academic health centers, for example, residents are “the bedrock of the workforce,” he explains. If they didn’t work 80-100 hours per week, those systems wouldn’t exist.

So, how do we look at the health care system in a way that is both grateful and critical, Dr. Park wonders. “How do we honor extreme acts of heroism and also acknowledge that the system sometimes gets by on the acts of heroes to patch up some of the brokenness and fragmentation within it?”

Put simply: What makes “heroism” necessary in the first place?
 

Heroes are determined

Ala Stanford, MD, a pediatric surgeon in Philadelphia, has frequently been called a “health care hero.” Given the title by CNN in 2021, she has received numerous other awards and accolades, featured in Fortune Magazine’s “World’s 50 Greatest Leaders” in 2021 and USA Today’s “Women of the Year” in 2022.

In 2020, Dr. Stanford was sheltering in place and watching “way too much” cable news. “They would play solemn music and show photos of all the people who had died,” she recalls. “I thought, ‘All these people are Black or brown. What is going on?’”

The standard explanation was that people of color were more vulnerable because they were more likely to be essential workers or have chronic health conditions. But Dr. Stanford believed this was only part of the story. The reason she saw that local Black communities had higher positivity rates was because people couldn’t get a COVID test.

Dr. Stanford got call after call from Philadelphians who had been turned away from testing centers. When she questioned colleagues, “they gave me every reason under the sun,” Dr. Stanford says. “It was because someone took public transportation, and they were only testing people in cars, or because they weren’t over 65, or because they didn’t have other comorbid health conditions, or because they weren’t a health care worker, or because they hadn’t traveled to China ...” The list went on.

Dr. Stanford appealed to local, state, and federal health authorities. Finally, she took matters into her own hands. She found tests, packed a van with masks, gowns, and gloves, and drove across the city going door to door. Eventually, she organized testing in the parking lots of Black churches, sometimes seeing more than 400 people per day.

The services were funded entirely through her own bank account and donations until she was eventually awarded a CDC grant through the Coronavirus Aid, Relief, and Economic Security (CARES) Act of 2020 and began to receive contracts from the city.

Since then, Dr. Stanford’s mission has evolved. She and her team provided COVID vaccinations to thousands, and in 2021, opened the Dr. Ala Stanford Center for Health Equity. The center offers primary care for all ages in underserved communities.

Still, Dr. Stanford doesn’t think of herself as a hero, and she stresses that many other people contributed to her success. “I think the world was on fire, and we were all firefighters,” Dr. Stanford says. “Someone said to me, ‘Ala, you ran to the fire and everyone else was running away from it, and you didn’t have to.’ … I feel like I was able to galvanize people to realize the power that they actually had. Maybe independently, they couldn’t do a whole lot, but collectively, we were a force.”
 

Heroes are selfless

Nicole Jackson, RN, an emergency room manager and nurse at Advocate Trinity Hospital in Chicago, was recently honored as a Health Care Hero by the American Red Cross of Greater Chicago.

On June 23, 2022, Jackson’s emergency department was understaffed and struggling with an influx of patients when three gunshot victims arrived. Two needed to be transferred to a trauma center, and one – with multiple gunshot wounds – required a critical care nurse in the ambulance. But the ETA for that transport was 90 minutes, which meant the patient might not survive. Although Ms. Jackson was already working beyond her shift, she rode in the ambulance with the patient herself and probably saved his life.

While this incident stood out to a colleague who nominated her for the Red Cross award, Ms. Jackson finds herself working extra hours fairly often. “Since COVID, that’s pretty much been like any other hospital,” she says. “We’ve had staffing challenges that we work through every day. So, the nurses come, they show up, and they do the best that they can with what we have to keep our patients safe.”

A 2022 survey by McKinsey estimated that by 2025, there could be a gap of 200,000 to 450,000 nurses in the United States. A two-year impact assessment from the American Nurses Foundation found that among more than 12,500 nurses, 40% were considering leaving their positions before the pandemic. By 2022, that number had jumped to 52% with the top reasons being insufficient staffing and negative effects on health and well-being.

Can the “hero narrative” help that situation? Ms. Jackson says she doesn’t see herself as a hero, but the supportive environment and gestures of recognition by staff do make her feel appreciated. These include daily messages offering “kudos” and nominations for the DAISY Award, which she herself received in 2022.

“I have people who I have encouraged to become nurses,” Ms. Jackson says, “and when they saw [the award], they were really excited about becoming a nurse.”
 

Heroes are strong

Jasmine Marcelin, MD, an infectious disease physician with Nebraska Medicine in Omaha, understands the need for heroes as symbols and sources of inspiration. Dr. Marcelin is a fan of the superhero movie genre. There is value, she says, in feeling hope and excitement while watching Superman or Wonder Woman save the day. Who doesn’t want to believe (if only briefly) that the good guys will always win?

In reality, Dr. Marcelin says, “none of us are invincible.” And it’s dangerous to forget that “the people behind the symbols are also human.”

In 2021, Dr. Marcelin gave a TEDx talk entitled, “The Myth of the Health Care Hero.” In it she discussed the extreme physical and mental toll of the pandemic on health care workers and urged her audience to think less about extravagant praise and more about their personal responsibilities. “We don’t want or need to be called heroes,” Dr. Marcelin said. “Right now, our love language is action. We need your help, and we cannot save the world on our own.”

Dr. Marcelin also sees links between superhuman expectations and the high levels of burnout in the medical field.

“It’s a systemic issue,” she explains, “where it requires a revamping and revitalization of the entire psyche of health care to recognize that the people working within this profession are human. And the things that we think and feel and need are the same as anybody else.”
 

Heroes are self-sacrificing 


Well-being, burnout, and disengagement in health care has become a focus for Oregon Health & Science’s Dr. Park, who is also director of RELATE Lab, an organization that aims to make health care more human-centered and equitable through leadership training, research, and community organizing.

For him, hearing neighbors banging pots and pans during the early pandemic was complicated. “The first phase for me was, ‘Thank you. I feel seen. I feel appreciated,’ ” he says. “Yes, I’m wearing a mask. I’m going in. I’m changing in the garage when I come home, so my kid and my partner don’t get sick.”

But after a while, the cheers started to feel like pressure. “Have I done anything heroic today?” Dr. Park asked himself. “Have I been as heroic as my friend who is in the hospital in the ICU? I don’t deserve this, so don’t bang those pots and pans for me.”

When your identity becomes about being a hero, Dr. Park says, when that becomes the standard by which you measure yourself, the result is often a sense of shame.

“I think a lot of people feel ashamed that they feel burnout,” he says, “because they’re supposed to be heroes, putting on their capes and masks. They’re waking up and saying, ‘I’m exhausted, and I can’t play that part today. But I know that’s the social expectation of me.’ “
 

Heroes are noble

There may not be a clear solution, but for many health care professionals, symbolic gestures alone are inadequate and, in certain cases, insulting.

On Doctor’s Day 2023, Alok Patel, MD, a pediatric hospitalist, tweeted a photo of an appreciation “gift” for staff from an unnamed hospital. The small items had metaphorical meanings – a rubber band “as a reminder to stay flexible,” a quarter “as a reminder to ‘call’ for help,” etc.

“Welcome to how you give thanks to ‘health care heroes,’ ” Dr. Patel tweeted.

For Dr. Patel, the issue is not lavish gifts but a need for an attitude shift. He recalls colleagues who felt ashamed asking for mental health services or time off, “because they were bombarded by the hero narrative, by the manufactured pressure that they needed to put their jobs above their own health – because that’s what ‘heroes’ do. I’m willing to bet most physicians would rather receive a sincere email with a transparent plan to better support health care workers than any Doctor’s Day gift,” he says.

In Dr. Marcelin’s TEDx talk, she quotes Spider-Man’s classic adage, “With great power, comes great responsibility.” She argues that this motto doesn’t just apply to those who can fly or deflect bullets; that’s not what heroism is. In fact, most people have their own definition of the word.

For Dr. Stanford, a hero is “someone who is selfless, putting the needs of others before their own.” Dr. Park believes there are no individual heroes. “It’s the work of the collective that’s truly heroic.”

By those standards, clearly anyone can step up, offer help, act with courage and kindness, and be heroic. “We humans, as ordinary as we are, can be extraordinary by using our power to do what’s right,” Dr. Marcelin says, “because there’s no such thing as health care heroes, just good people doing the right thing.”

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

Can too much of a healthy habit become bad? 

Lots of evidence shows that regular exercise wards off respiratory infections such as colds, flu, and COVID-19. However, very vigorous exercise may lead to these infections by triggering immune changes that increase risk, according to a new study.

The findings come as we enter another possible tripledemic this winter, with an increase in COVID, flu, and respiratory syncytial virus (RSV). Public health officials are on alert for a potentially severe flu season, following high flu activity this year in Australia (which can help predict how bad the U.S. flu season will be). 

Studies show that the risk for acute respiratory infections is lower in people who exercise regularly. Physically active people are also less likely to suffer severe outcomes from COVID.

But while inactivity has emerged as a potential risk factor for respiratory infections, scientists have long proposed that too much activity, particularly of a prolonged and highly intense nature, may also increase susceptibility.

“The theory suggests that a short-term suppression of the immune system following intense exercise leads to an increase in susceptibility to infection, especially upper respiratory illness,” said Choukri Ben Mamoun, PhD, professor of medicine (infectious diseases) and microbial pathogenesis at the Yale Institute for Global Health, New Haven, Conn. Researchers have documented a greater incidence of upper respiratory illness “among both highly trained and healthy untrained individuals following increased activity during competition or heaving training blocks.”

That’s important if you treat athletes or patients with physically demanding jobs that push them to their physical limits, such as firefighters, police officers, or military personnel. 

The new study was small but sheds light on a possible mechanism. Researchers tested blood, saliva, and urine samples from 11 firefighters before and 10 minutes after intense exercise designed to mimic wildfire fighting. The firefighters hiked over hilly terrain for 45 minutes in humid weather wearing up to 44 pounds of wildland gear. 

After the workout, subjects had fewer proinflammatory cytokines and ceramides, and more antimicrobial peptides, changes that indicate a greater susceptibility to infection, researchers said. A systematic review adds weight to their findings, revealing a handful of studies in marathon runners, firefighters, soldiers, and soccer players that found an increase in respiratory symptoms after strenuous workouts. 

“The relationship between exercise and the immune system is complex and varies from person to person,” said Dr. Mamoun, who was not part of the study. “Physicians can use this study’s findings to provide individualized exercise recommendations.”
 

An adaptive mechanism gone awry

During intense exercise, the body may reduce airway inflammation to help you breathe, say the authors. The boost in antimicrobial peptides found in the saliva samples could be the body’s way of compensating for the diminished immune function.

Antimicrobial peptides are part of the immune response but they’re “usually not very effective for viral infections,” said lead author Ernesto Nakayasu, PhD, senior research scientist at the Pacific Northwest National Laboratory, a U.S. Department of Energy lab in Richland, Washington. “That’s why we think it may make you more exposed to respiratory infections.”

The drop in proinflammatory molecules had an inverse relationship with opiorphin, a peripheral tissue vasodilator thought to increase blood flow and improve oxygen delivery to the muscles during exercise. This may be an adaptive mechanism to improve gas exchange in response to greater oxygen demand.

But as with many adaptive mechanisms, this one may have an unintended consequence. Fewer proinflammatory molecules on patrol may leave you more vulnerable to infection. Plus, during intense exercise, people tend to breathe through their mouths, bypassing the nasal barriers and allowing more microbes – including viruses – to penetrate and deposit in the distal airways of the lungs.
 

Advice for patients

More research is needed to know exactly how long and how strenuously one needs to exercise to trigger these immune changes, Dr. Nakayasu said. 

As shown by their lactate accumulation (an indicator of anaerobic metabolism), the firefighters in the study outpaced the average person’s aerobic respiratory capacity, meaning the average person doing moderate exercise likely wouldn’t trigger these changes.  

“Regular moderate exercise is generally associated with better health outcomes [and] improved immune function,” said Dr. Mamoun. For those who exercise to the extreme, proper rest and recovery are “essential for maintaining a robust immune system,” Dr. Mamoun said.

And of course, you can encourage patients to get vaccinated. Young, healthy patients may assume they don’t need COVID-19 or flu shots, as indicated by a recent survey that found one-third of Americans feel they don’t need these vaccinations if they’re not high risk.
 

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

Can too much of a healthy habit become bad? 

Lots of evidence shows that regular exercise wards off respiratory infections such as colds, flu, and COVID-19. However, very vigorous exercise may lead to these infections by triggering immune changes that increase risk, according to a new study.

The findings come as we enter another possible tripledemic this winter, with an increase in COVID, flu, and respiratory syncytial virus (RSV). Public health officials are on alert for a potentially severe flu season, following high flu activity this year in Australia (which can help predict how bad the U.S. flu season will be). 

Studies show that the risk for acute respiratory infections is lower in people who exercise regularly. Physically active people are also less likely to suffer severe outcomes from COVID.

But while inactivity has emerged as a potential risk factor for respiratory infections, scientists have long proposed that too much activity, particularly of a prolonged and highly intense nature, may also increase susceptibility.

“The theory suggests that a short-term suppression of the immune system following intense exercise leads to an increase in susceptibility to infection, especially upper respiratory illness,” said Choukri Ben Mamoun, PhD, professor of medicine (infectious diseases) and microbial pathogenesis at the Yale Institute for Global Health, New Haven, Conn. Researchers have documented a greater incidence of upper respiratory illness “among both highly trained and healthy untrained individuals following increased activity during competition or heaving training blocks.”

That’s important if you treat athletes or patients with physically demanding jobs that push them to their physical limits, such as firefighters, police officers, or military personnel. 

The new study was small but sheds light on a possible mechanism. Researchers tested blood, saliva, and urine samples from 11 firefighters before and 10 minutes after intense exercise designed to mimic wildfire fighting. The firefighters hiked over hilly terrain for 45 minutes in humid weather wearing up to 44 pounds of wildland gear. 

After the workout, subjects had fewer proinflammatory cytokines and ceramides, and more antimicrobial peptides, changes that indicate a greater susceptibility to infection, researchers said. A systematic review adds weight to their findings, revealing a handful of studies in marathon runners, firefighters, soldiers, and soccer players that found an increase in respiratory symptoms after strenuous workouts. 

“The relationship between exercise and the immune system is complex and varies from person to person,” said Dr. Mamoun, who was not part of the study. “Physicians can use this study’s findings to provide individualized exercise recommendations.”
 

An adaptive mechanism gone awry

During intense exercise, the body may reduce airway inflammation to help you breathe, say the authors. The boost in antimicrobial peptides found in the saliva samples could be the body’s way of compensating for the diminished immune function.

Antimicrobial peptides are part of the immune response but they’re “usually not very effective for viral infections,” said lead author Ernesto Nakayasu, PhD, senior research scientist at the Pacific Northwest National Laboratory, a U.S. Department of Energy lab in Richland, Washington. “That’s why we think it may make you more exposed to respiratory infections.”

The drop in proinflammatory molecules had an inverse relationship with opiorphin, a peripheral tissue vasodilator thought to increase blood flow and improve oxygen delivery to the muscles during exercise. This may be an adaptive mechanism to improve gas exchange in response to greater oxygen demand.

But as with many adaptive mechanisms, this one may have an unintended consequence. Fewer proinflammatory molecules on patrol may leave you more vulnerable to infection. Plus, during intense exercise, people tend to breathe through their mouths, bypassing the nasal barriers and allowing more microbes – including viruses – to penetrate and deposit in the distal airways of the lungs.
 

Advice for patients

More research is needed to know exactly how long and how strenuously one needs to exercise to trigger these immune changes, Dr. Nakayasu said. 

As shown by their lactate accumulation (an indicator of anaerobic metabolism), the firefighters in the study outpaced the average person’s aerobic respiratory capacity, meaning the average person doing moderate exercise likely wouldn’t trigger these changes.  

“Regular moderate exercise is generally associated with better health outcomes [and] improved immune function,” said Dr. Mamoun. For those who exercise to the extreme, proper rest and recovery are “essential for maintaining a robust immune system,” Dr. Mamoun said.

And of course, you can encourage patients to get vaccinated. Young, healthy patients may assume they don’t need COVID-19 or flu shots, as indicated by a recent survey that found one-third of Americans feel they don’t need these vaccinations if they’re not high risk.
 

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

Can too much of a healthy habit become bad? 

Lots of evidence shows that regular exercise wards off respiratory infections such as colds, flu, and COVID-19. However, very vigorous exercise may lead to these infections by triggering immune changes that increase risk, according to a new study.

The findings come as we enter another possible tripledemic this winter, with an increase in COVID, flu, and respiratory syncytial virus (RSV). Public health officials are on alert for a potentially severe flu season, following high flu activity this year in Australia (which can help predict how bad the U.S. flu season will be). 

Studies show that the risk for acute respiratory infections is lower in people who exercise regularly. Physically active people are also less likely to suffer severe outcomes from COVID.

But while inactivity has emerged as a potential risk factor for respiratory infections, scientists have long proposed that too much activity, particularly of a prolonged and highly intense nature, may also increase susceptibility.

“The theory suggests that a short-term suppression of the immune system following intense exercise leads to an increase in susceptibility to infection, especially upper respiratory illness,” said Choukri Ben Mamoun, PhD, professor of medicine (infectious diseases) and microbial pathogenesis at the Yale Institute for Global Health, New Haven, Conn. Researchers have documented a greater incidence of upper respiratory illness “among both highly trained and healthy untrained individuals following increased activity during competition or heaving training blocks.”

That’s important if you treat athletes or patients with physically demanding jobs that push them to their physical limits, such as firefighters, police officers, or military personnel. 

The new study was small but sheds light on a possible mechanism. Researchers tested blood, saliva, and urine samples from 11 firefighters before and 10 minutes after intense exercise designed to mimic wildfire fighting. The firefighters hiked over hilly terrain for 45 minutes in humid weather wearing up to 44 pounds of wildland gear. 

After the workout, subjects had fewer proinflammatory cytokines and ceramides, and more antimicrobial peptides, changes that indicate a greater susceptibility to infection, researchers said. A systematic review adds weight to their findings, revealing a handful of studies in marathon runners, firefighters, soldiers, and soccer players that found an increase in respiratory symptoms after strenuous workouts. 

“The relationship between exercise and the immune system is complex and varies from person to person,” said Dr. Mamoun, who was not part of the study. “Physicians can use this study’s findings to provide individualized exercise recommendations.”
 

An adaptive mechanism gone awry

During intense exercise, the body may reduce airway inflammation to help you breathe, say the authors. The boost in antimicrobial peptides found in the saliva samples could be the body’s way of compensating for the diminished immune function.

Antimicrobial peptides are part of the immune response but they’re “usually not very effective for viral infections,” said lead author Ernesto Nakayasu, PhD, senior research scientist at the Pacific Northwest National Laboratory, a U.S. Department of Energy lab in Richland, Washington. “That’s why we think it may make you more exposed to respiratory infections.”

The drop in proinflammatory molecules had an inverse relationship with opiorphin, a peripheral tissue vasodilator thought to increase blood flow and improve oxygen delivery to the muscles during exercise. This may be an adaptive mechanism to improve gas exchange in response to greater oxygen demand.

But as with many adaptive mechanisms, this one may have an unintended consequence. Fewer proinflammatory molecules on patrol may leave you more vulnerable to infection. Plus, during intense exercise, people tend to breathe through their mouths, bypassing the nasal barriers and allowing more microbes – including viruses – to penetrate and deposit in the distal airways of the lungs.
 

Advice for patients

More research is needed to know exactly how long and how strenuously one needs to exercise to trigger these immune changes, Dr. Nakayasu said. 

As shown by their lactate accumulation (an indicator of anaerobic metabolism), the firefighters in the study outpaced the average person’s aerobic respiratory capacity, meaning the average person doing moderate exercise likely wouldn’t trigger these changes.  

“Regular moderate exercise is generally associated with better health outcomes [and] improved immune function,” said Dr. Mamoun. For those who exercise to the extreme, proper rest and recovery are “essential for maintaining a robust immune system,” Dr. Mamoun said.

And of course, you can encourage patients to get vaccinated. Young, healthy patients may assume they don’t need COVID-19 or flu shots, as indicated by a recent survey that found one-third of Americans feel they don’t need these vaccinations if they’re not high risk.
 

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

TOPLINE:

Getting patients to return unused oral anticancer drugs to the pharmacy and then having the pharmacy redispense those medications that meet quality standards is a promising strategy to save money and reduce waste, a Dutch study has found.

METHODOLOGY:

• Ongoing drug shortages and growing drug prices contribute to access issues in oncology.
• Researchers compared the reduction in drug waste and cost savings from redispensing oral anticancer drugs versus the standard practice of disposing of them.
• Outpatient pharmacies at four Dutch hospitals participated. A total of 1,071 patients with cancer receiving oral anticancer drugs for at-home use were given special packaging for returning unused medication to the pharmacy.
• The pharmacy ensured the quality of returned drugs based on authenticity, appearance, remaining shelf-life, and adequate storage temperature.

TAKEAWAY:

• A total of 13,069 oral anticancer drug packages, containing an average of 27 daily doses per package, were dispensed during the study period.
• Overall, 16% of patients (n = 171) returned 335 (2.6%) unused oral anticancer drug packages, of which 68% were redispensed after passing quality control.
• Redispensing unused oral anticancer drugs reduced waste by 68%, compared with disposing of them, and provided a mean net annual cost savings of €576 (U.S. $682) per patient per year.
• When just those patients who took targeted oral anticancer drugs for up to 24 months were looked at, the mean net annual cost savings associated with the quality check protocol increased to €934 (U.S. $1,019) per patient or of only the visual quality check was €1,348 (U.S. $1,474) per patient.

IN PRACTICE:

“New strategies targeting waste are required to improve financial and ecologic sustainability of expensive therapies, such as oral anticancer drugs, that frequently remain unused by patients,” the authors write. “These findings provide a waste-minimizing strategy to contribute to sustainable and affordable access to drugs.”

SOURCE:

The study, by Elisabeth M. Smale, PharmD, of Radboud University Medical Center, the Netherlands, and colleagues, was published online  in JAMA Oncology.

LIMITATIONS:

Novel drugs are substantially more expensive in the United States, and the Dutch findings might underestimate potential cost savings generated through redispensing programs in the United States. Participants were prompted to return unused oral anticancer drugs through reminders at the pharmacy, but all such drugs may not have been returned.

DISCLOSURES:

The study was funded by ZonMw, the Dutch national organization for health research and development. The authors have disclosed no relevant financial relationships.

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

TOPLINE:

Getting patients to return unused oral anticancer drugs to the pharmacy and then having the pharmacy redispense those medications that meet quality standards is a promising strategy to save money and reduce waste, a Dutch study has found.

METHODOLOGY:

• Ongoing drug shortages and growing drug prices contribute to access issues in oncology.
• Researchers compared the reduction in drug waste and cost savings from redispensing oral anticancer drugs versus the standard practice of disposing of them.
• Outpatient pharmacies at four Dutch hospitals participated. A total of 1,071 patients with cancer receiving oral anticancer drugs for at-home use were given special packaging for returning unused medication to the pharmacy.
• The pharmacy ensured the quality of returned drugs based on authenticity, appearance, remaining shelf-life, and adequate storage temperature.

TAKEAWAY:

• A total of 13,069 oral anticancer drug packages, containing an average of 27 daily doses per package, were dispensed during the study period.
• Overall, 16% of patients (n = 171) returned 335 (2.6%) unused oral anticancer drug packages, of which 68% were redispensed after passing quality control.
• Redispensing unused oral anticancer drugs reduced waste by 68%, compared with disposing of them, and provided a mean net annual cost savings of €576 (U.S. $682) per patient per year.
• When just those patients who took targeted oral anticancer drugs for up to 24 months were looked at, the mean net annual cost savings associated with the quality check protocol increased to €934 (U.S. $1,019) per patient or of only the visual quality check was €1,348 (U.S. $1,474) per patient.

IN PRACTICE:

“New strategies targeting waste are required to improve financial and ecologic sustainability of expensive therapies, such as oral anticancer drugs, that frequently remain unused by patients,” the authors write. “These findings provide a waste-minimizing strategy to contribute to sustainable and affordable access to drugs.”

SOURCE:

The study, by Elisabeth M. Smale, PharmD, of Radboud University Medical Center, the Netherlands, and colleagues, was published online  in JAMA Oncology.

LIMITATIONS:

Novel drugs are substantially more expensive in the United States, and the Dutch findings might underestimate potential cost savings generated through redispensing programs in the United States. Participants were prompted to return unused oral anticancer drugs through reminders at the pharmacy, but all such drugs may not have been returned.

DISCLOSURES:

The study was funded by ZonMw, the Dutch national organization for health research and development. The authors have disclosed no relevant financial relationships.

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

TOPLINE:

Getting patients to return unused oral anticancer drugs to the pharmacy and then having the pharmacy redispense those medications that meet quality standards is a promising strategy to save money and reduce waste, a Dutch study has found.

METHODOLOGY:

• Ongoing drug shortages and growing drug prices contribute to access issues in oncology.
• Researchers compared the reduction in drug waste and cost savings from redispensing oral anticancer drugs versus the standard practice of disposing of them.
• Outpatient pharmacies at four Dutch hospitals participated. A total of 1,071 patients with cancer receiving oral anticancer drugs for at-home use were given special packaging for returning unused medication to the pharmacy.
• The pharmacy ensured the quality of returned drugs based on authenticity, appearance, remaining shelf-life, and adequate storage temperature.

TAKEAWAY:

• A total of 13,069 oral anticancer drug packages, containing an average of 27 daily doses per package, were dispensed during the study period.
• Overall, 16% of patients (n = 171) returned 335 (2.6%) unused oral anticancer drug packages, of which 68% were redispensed after passing quality control.
• Redispensing unused oral anticancer drugs reduced waste by 68%, compared with disposing of them, and provided a mean net annual cost savings of €576 (U.S. $682) per patient per year.
• When just those patients who took targeted oral anticancer drugs for up to 24 months were looked at, the mean net annual cost savings associated with the quality check protocol increased to €934 (U.S. $1,019) per patient or of only the visual quality check was €1,348 (U.S. $1,474) per patient.

IN PRACTICE:

“New strategies targeting waste are required to improve financial and ecologic sustainability of expensive therapies, such as oral anticancer drugs, that frequently remain unused by patients,” the authors write. “These findings provide a waste-minimizing strategy to contribute to sustainable and affordable access to drugs.”

SOURCE:

The study, by Elisabeth M. Smale, PharmD, of Radboud University Medical Center, the Netherlands, and colleagues, was published online  in JAMA Oncology.

LIMITATIONS:

Novel drugs are substantially more expensive in the United States, and the Dutch findings might underestimate potential cost savings generated through redispensing programs in the United States. Participants were prompted to return unused oral anticancer drugs through reminders at the pharmacy, but all such drugs may not have been returned.

DISCLOSURES:

The study was funded by ZonMw, the Dutch national organization for health research and development. The authors have disclosed no relevant financial relationships.

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

Glucagonlike peptide–1 receptor agonists (GLP-1 RAs), used for diabetes or obesity, are associated with a significantly lower quality of bowel preparation and a greater need for repeat colonoscopy, new research suggests.

“We began observing inadequate bowel preparation in our patients undergoing colonoscopy who were on GLP-1 RAs, which raised questions, especially given the association between these medications and delays in intestinal transit,” study investigator Eric. J. Vargas, MD, of the Mayo Clinic, Rochester, Minn., told this news organization. The team decided to investigate.

The “most surprising finding” was the “notably higher rate of inadequate bowel preparation, which necessitates a repeat colonoscopy within 12 months to ensure adequate screening and surveillance for colorectal cancers,” he said. “Specifically, for every 14 patients treated with GLP-1 RAs, one patient would require a repeat colonoscopy due to suboptimal preparation.”

In light of the findings, “clinicians should consider patients on GLP-1 RAs to be a population at risk for poor quality of bowel preparation,” he said.

The study was published online in the American Journal of Gastroenterology.
 

Low prep scores

The investigators analyzed a cohort of patients who underwent screening or surveillance colonoscopy at Mayo Clinic between 2021 and 2022. Patients taking any GLP-1 RA for diabetes or obesity at the time of colonoscopy were defined as “cases,” and those who were prescribed a GLP-1 RA at one point but had not taken it within 3 months of colonoscopy were controls.

The Boston Bowel Preparation Scale (BBPS) was used to assess bowel preparation quality.

The study included 446 patients: 265 (59%) taking a GLP-1 RA and 181 controls (41%). Overall, the average age was 59 years, about 54% were women, and 91% were White. Among those taking a GLP-1 RA, 86% had diabetes, as did 74% of controls.

Of patients on a GLP-1 RA, 48.8% took subcutaneous semaglutide, 3.1% took oral semaglutide, 34.6% took dulaglutide, 11% took liraglutide, and very small percentages took tirzepatide or exenatide.

There were no statistically significant differences between groups at baseline except for the diabetes diagnosis.

After diabetes was controlled for, the mean BBPS was significantly higher in controls than in GLP-1 RA recipients (7.5 vs. 7), and the percentage of patients with a total BBPS score less than 5 was significantly higher in the GLP-1 RA group than in the control group (15.5% vs. 6.6%).

In a secondary analysis of those with diabetes, the proportion of patients with a BBPS score less than or equal to 1 in any segment was higher in those taking a GLP-1 RA than in controls (24.9% vs. 13.3%).

The proportion of patients who required a repeat colonoscopy owing to inadequate bowel prep was higher among those taking a GLP-1 RA than among controls (18.9% vs. 11.1%). This corresponded to a number needed to harm of 14.

“GLP-1 RAs are increasingly used for the treatment of diabetes and obesity and have been demonstrated to reduce gastrointestinal motility,” the authors write. “Our data signal that the use of these medications in this patient population may be an additional factor in suboptimal bowel preparation.”

Limitations include the retrospective nature of the study, its focus on a single health system with a large majority of non-Hispanic White patients, and lack of data on diabetic complications and the use of insulin – all of which “necessitate caution in interpreting the findings,” the authors write.
 

Research ‘evolving rapidly’

“We will continue gathering more information on colonoscopy preparations and GLP-1 RA medication use, and whether the newer type 2 diabetes medications have a similar effect,” Dr. Vargas said. “The newer and upcoming medications are double and/or triple agonists, and it remains to be determined if these have a similar effect on gastric transit times.”

The recent lowering of the recommended colorectal cancer screening age for average-risk individuals to 45 combined with increasing use of GLP-1 RAs make it important to minimize repeat colonoscopies, he added.

“In the absence of specific guidance on timing of periprocedural discontinuation of GLP-1 RAs, clinicians can enhance counseling and educational efforts in this population,” Dr. Vargas suggested. They can also consider interventions such as “extending bowel preparation regimens, issuing a clear liquid diet recommendation 48-72 hours before colonoscopy, and nurse education visits on colonoscopy preparation.”

Commenting on the study, David A. Greenwald, MD, director of clinical gastroenterology and endoscopy at Mount Sinai Hospital, New York City, noted the potential confounding in a retrospective study, as well as the relatively small sample size. “Nonetheless, the findings make sense and are important to guide clinical decision-making,” he told this news organization.

Gastric emptying with GLP-1 RAs can lead to retained fluid and food in the stomach, which increase the risk for aspiration at endoscopy, he said.

“We are concerned about that primarily for upper endoscopy but have seen vomiting and aspiration occur during colonoscopy in patients who have been using [these] medications,” Dr. Greenwald said. It’s reasonable to postulate that GLP-1 RAs could delay passage of colonoscopy preps through the gastrointestinal tract, which would affect the outcome of prep, he added.

“Research around GLP-1 agonist use and endoscopy is evolving rapidly, and we hope to have data-driven guidance soon on whether these agents need to be held in the peri-endoscopic period, and if so, for how long,” Dr. Greenwald noted. “At the moment, guidance has been published but is very much driven by expert opinion and limited studies.”

The study received no financial support. Dr. Vargas and Dr. Greenwald report no relevant conflicts of interest.

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

Glucagonlike peptide–1 receptor agonists (GLP-1 RAs), used for diabetes or obesity, are associated with a significantly lower quality of bowel preparation and a greater need for repeat colonoscopy, new research suggests.

“We began observing inadequate bowel preparation in our patients undergoing colonoscopy who were on GLP-1 RAs, which raised questions, especially given the association between these medications and delays in intestinal transit,” study investigator Eric. J. Vargas, MD, of the Mayo Clinic, Rochester, Minn., told this news organization. The team decided to investigate.

The “most surprising finding” was the “notably higher rate of inadequate bowel preparation, which necessitates a repeat colonoscopy within 12 months to ensure adequate screening and surveillance for colorectal cancers,” he said. “Specifically, for every 14 patients treated with GLP-1 RAs, one patient would require a repeat colonoscopy due to suboptimal preparation.”

In light of the findings, “clinicians should consider patients on GLP-1 RAs to be a population at risk for poor quality of bowel preparation,” he said.

The study was published online in the American Journal of Gastroenterology.
 

Low prep scores

The investigators analyzed a cohort of patients who underwent screening or surveillance colonoscopy at Mayo Clinic between 2021 and 2022. Patients taking any GLP-1 RA for diabetes or obesity at the time of colonoscopy were defined as “cases,” and those who were prescribed a GLP-1 RA at one point but had not taken it within 3 months of colonoscopy were controls.

The Boston Bowel Preparation Scale (BBPS) was used to assess bowel preparation quality.

The study included 446 patients: 265 (59%) taking a GLP-1 RA and 181 controls (41%). Overall, the average age was 59 years, about 54% were women, and 91% were White. Among those taking a GLP-1 RA, 86% had diabetes, as did 74% of controls.

Of patients on a GLP-1 RA, 48.8% took subcutaneous semaglutide, 3.1% took oral semaglutide, 34.6% took dulaglutide, 11% took liraglutide, and very small percentages took tirzepatide or exenatide.

There were no statistically significant differences between groups at baseline except for the diabetes diagnosis.

After diabetes was controlled for, the mean BBPS was significantly higher in controls than in GLP-1 RA recipients (7.5 vs. 7), and the percentage of patients with a total BBPS score less than 5 was significantly higher in the GLP-1 RA group than in the control group (15.5% vs. 6.6%).

In a secondary analysis of those with diabetes, the proportion of patients with a BBPS score less than or equal to 1 in any segment was higher in those taking a GLP-1 RA than in controls (24.9% vs. 13.3%).

The proportion of patients who required a repeat colonoscopy owing to inadequate bowel prep was higher among those taking a GLP-1 RA than among controls (18.9% vs. 11.1%). This corresponded to a number needed to harm of 14.

“GLP-1 RAs are increasingly used for the treatment of diabetes and obesity and have been demonstrated to reduce gastrointestinal motility,” the authors write. “Our data signal that the use of these medications in this patient population may be an additional factor in suboptimal bowel preparation.”

Limitations include the retrospective nature of the study, its focus on a single health system with a large majority of non-Hispanic White patients, and lack of data on diabetic complications and the use of insulin – all of which “necessitate caution in interpreting the findings,” the authors write.
 

Research ‘evolving rapidly’

“We will continue gathering more information on colonoscopy preparations and GLP-1 RA medication use, and whether the newer type 2 diabetes medications have a similar effect,” Dr. Vargas said. “The newer and upcoming medications are double and/or triple agonists, and it remains to be determined if these have a similar effect on gastric transit times.”

The recent lowering of the recommended colorectal cancer screening age for average-risk individuals to 45 combined with increasing use of GLP-1 RAs make it important to minimize repeat colonoscopies, he added.

“In the absence of specific guidance on timing of periprocedural discontinuation of GLP-1 RAs, clinicians can enhance counseling and educational efforts in this population,” Dr. Vargas suggested. They can also consider interventions such as “extending bowel preparation regimens, issuing a clear liquid diet recommendation 48-72 hours before colonoscopy, and nurse education visits on colonoscopy preparation.”

Commenting on the study, David A. Greenwald, MD, director of clinical gastroenterology and endoscopy at Mount Sinai Hospital, New York City, noted the potential confounding in a retrospective study, as well as the relatively small sample size. “Nonetheless, the findings make sense and are important to guide clinical decision-making,” he told this news organization.

Gastric emptying with GLP-1 RAs can lead to retained fluid and food in the stomach, which increase the risk for aspiration at endoscopy, he said.

“We are concerned about that primarily for upper endoscopy but have seen vomiting and aspiration occur during colonoscopy in patients who have been using [these] medications,” Dr. Greenwald said. It’s reasonable to postulate that GLP-1 RAs could delay passage of colonoscopy preps through the gastrointestinal tract, which would affect the outcome of prep, he added.

“Research around GLP-1 agonist use and endoscopy is evolving rapidly, and we hope to have data-driven guidance soon on whether these agents need to be held in the peri-endoscopic period, and if so, for how long,” Dr. Greenwald noted. “At the moment, guidance has been published but is very much driven by expert opinion and limited studies.”

The study received no financial support. Dr. Vargas and Dr. Greenwald report no relevant conflicts of interest.

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

Glucagonlike peptide–1 receptor agonists (GLP-1 RAs), used for diabetes or obesity, are associated with a significantly lower quality of bowel preparation and a greater need for repeat colonoscopy, new research suggests.

“We began observing inadequate bowel preparation in our patients undergoing colonoscopy who were on GLP-1 RAs, which raised questions, especially given the association between these medications and delays in intestinal transit,” study investigator Eric. J. Vargas, MD, of the Mayo Clinic, Rochester, Minn., told this news organization. The team decided to investigate.

The “most surprising finding” was the “notably higher rate of inadequate bowel preparation, which necessitates a repeat colonoscopy within 12 months to ensure adequate screening and surveillance for colorectal cancers,” he said. “Specifically, for every 14 patients treated with GLP-1 RAs, one patient would require a repeat colonoscopy due to suboptimal preparation.”

In light of the findings, “clinicians should consider patients on GLP-1 RAs to be a population at risk for poor quality of bowel preparation,” he said.

The study was published online in the American Journal of Gastroenterology.
 

Low prep scores

The investigators analyzed a cohort of patients who underwent screening or surveillance colonoscopy at Mayo Clinic between 2021 and 2022. Patients taking any GLP-1 RA for diabetes or obesity at the time of colonoscopy were defined as “cases,” and those who were prescribed a GLP-1 RA at one point but had not taken it within 3 months of colonoscopy were controls.

The Boston Bowel Preparation Scale (BBPS) was used to assess bowel preparation quality.

The study included 446 patients: 265 (59%) taking a GLP-1 RA and 181 controls (41%). Overall, the average age was 59 years, about 54% were women, and 91% were White. Among those taking a GLP-1 RA, 86% had diabetes, as did 74% of controls.

Of patients on a GLP-1 RA, 48.8% took subcutaneous semaglutide, 3.1% took oral semaglutide, 34.6% took dulaglutide, 11% took liraglutide, and very small percentages took tirzepatide or exenatide.

There were no statistically significant differences between groups at baseline except for the diabetes diagnosis.

After diabetes was controlled for, the mean BBPS was significantly higher in controls than in GLP-1 RA recipients (7.5 vs. 7), and the percentage of patients with a total BBPS score less than 5 was significantly higher in the GLP-1 RA group than in the control group (15.5% vs. 6.6%).

In a secondary analysis of those with diabetes, the proportion of patients with a BBPS score less than or equal to 1 in any segment was higher in those taking a GLP-1 RA than in controls (24.9% vs. 13.3%).

The proportion of patients who required a repeat colonoscopy owing to inadequate bowel prep was higher among those taking a GLP-1 RA than among controls (18.9% vs. 11.1%). This corresponded to a number needed to harm of 14.

“GLP-1 RAs are increasingly used for the treatment of diabetes and obesity and have been demonstrated to reduce gastrointestinal motility,” the authors write. “Our data signal that the use of these medications in this patient population may be an additional factor in suboptimal bowel preparation.”

Limitations include the retrospective nature of the study, its focus on a single health system with a large majority of non-Hispanic White patients, and lack of data on diabetic complications and the use of insulin – all of which “necessitate caution in interpreting the findings,” the authors write.
 

Research ‘evolving rapidly’

“We will continue gathering more information on colonoscopy preparations and GLP-1 RA medication use, and whether the newer type 2 diabetes medications have a similar effect,” Dr. Vargas said. “The newer and upcoming medications are double and/or triple agonists, and it remains to be determined if these have a similar effect on gastric transit times.”

The recent lowering of the recommended colorectal cancer screening age for average-risk individuals to 45 combined with increasing use of GLP-1 RAs make it important to minimize repeat colonoscopies, he added.

“In the absence of specific guidance on timing of periprocedural discontinuation of GLP-1 RAs, clinicians can enhance counseling and educational efforts in this population,” Dr. Vargas suggested. They can also consider interventions such as “extending bowel preparation regimens, issuing a clear liquid diet recommendation 48-72 hours before colonoscopy, and nurse education visits on colonoscopy preparation.”

Commenting on the study, David A. Greenwald, MD, director of clinical gastroenterology and endoscopy at Mount Sinai Hospital, New York City, noted the potential confounding in a retrospective study, as well as the relatively small sample size. “Nonetheless, the findings make sense and are important to guide clinical decision-making,” he told this news organization.

Gastric emptying with GLP-1 RAs can lead to retained fluid and food in the stomach, which increase the risk for aspiration at endoscopy, he said.

“We are concerned about that primarily for upper endoscopy but have seen vomiting and aspiration occur during colonoscopy in patients who have been using [these] medications,” Dr. Greenwald said. It’s reasonable to postulate that GLP-1 RAs could delay passage of colonoscopy preps through the gastrointestinal tract, which would affect the outcome of prep, he added.

“Research around GLP-1 agonist use and endoscopy is evolving rapidly, and we hope to have data-driven guidance soon on whether these agents need to be held in the peri-endoscopic period, and if so, for how long,” Dr. Greenwald noted. “At the moment, guidance has been published but is very much driven by expert opinion and limited studies.”

The study received no financial support. Dr. Vargas and Dr. Greenwald report no relevant conflicts of interest.

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

Intensive lowering of blood pressure to a systolic target less than 120 mm Hg reduced cardiovascular events among individuals at high risk for cardiovascular disease, compared with standard treatment using a target less than 140 mm Hg in the ESPRIT trial.

“Intensive blood pressure–lowering treatment targeting a systolic pressure below 120 mm Hg for 3 years resulted in a 12% lower incidence of major vascular events, a 39% lower cardiovascular mortality, and 21% lower all-cause mortality than the standard treatment targeting a systolic pressure below 140 mm Hg,” reported lead investigator, Jing Li, MD, PhD, director of the department of preventive medicine at the National Center for Cardiovascular Diseases in Beijing.

The trial included patients with diabetes and those with a history of stroke, two important groups that were excluded in the previous SPRINT trial of intensive BP lowering. Results suggested that the benefit of intensive BP lowering extends to these groups.

The results translate into the prevention of 14 major vascular events and 8 deaths for every 1,000 individuals are treated for 3 years to a target systolic pressure less than 120 mm Hg rather than less than 140 mm Hg, at the cost of an additional three patients experiencing the serious adverse event of syncope, Dr. Li said.

“Our study generates new evidence about benefit and safety of treatment targeting systolic blood pressure below 120 mm Hg among a diverse Asian population, which is generally consistent with those from other ethnicities. Implementing this intensive treatment strategy for high-risk adults has the potential to save more lives and reduce the public health burden of heart disease worldwide,” she concluded.

Dr. Li presented the ESPRIT trial at the annual scientific sessions of the American Heart Association.

The ESPRIT trial included 11,255 Chinese adults (average age, 64 years; 41% women) who had a baseline systolic BP measurement of 130-180 mm Hg (average was 147/83 mm Hg) and either established cardiovascular disease or at least two major risk factors for cardiovascular disease. Of those enrolled, 39% had diabetes, and 27% had a history of stroke.

They were randomly assigned to receive intensive BP treatment, with a systolic BP target less than 120 mm Hg, or standard treatment, with a target measurement less than 140 mm Hg, over a 3-year period. After 1 year, systolic pressure was lowered to 135.6 mm Hg in the standard care group and to 120.3 mm Hg in the intensive treatment group, with values remaining at around the same level for the remainder of the follow-up.

The primary outcome was a composite of myocardial infarction, coronary or noncoronary revascularization, hospitalization/ED visit for heart failure, stroke, or cardiovascular death.

After 3.4 years of follow-up, 624 primary outcome events had occurred in the standard arm (3.6%) versus 547 events in intensive arm (3.2%), a reduction of 12% (hazard ratio, 0.88; 95% confidence interval, 0.78-0.99). This gives a number needed to treat to prevent one event of 74.

Cardiovascular death occurred in 0.5% of the standard group versus 0.3% of the intensive group (HR 0.61; 95% CI, 0.44-0.84); and all-cause death occurred in 1.1% of the standard group versus 0.9% of the intensive group (HR, 0.79; 95% CI, 0.64-0.97).

The individual endpoints of MI, stroke, and heart failure showed positive trends to a reduction with intensive BP lowering, but these did not reach statistical significance.

In terms of serious adverse events, syncope was increased in the intensive group (0.4% vs 0.1%), but there were no significant differences in hypotension, electrolyte abnormality, falls resulting in an injury, acute kidney injury, or renal failure.
 

Should 120 mm Hg be new target?

Commenting on the study, Paul Whelton, MD, chair in global public health at Tulane University, New Orleans, said that the results were consistent with several other trials.  

“When we look at meta-analysis of trials of different levels of blood pressure reduction, all the studies show the same thing – the lower the blood pressure, the better the outcome, with those starting at higher levels gaining the greatest the benefit of blood pressure reductions,” he noted.

“There are four trials that have looked at systolic targets of less than 120 mm Hg versus less than 140 mm Hg (SPRINT, ACCORD BP, RESPECT, and now ESPRIT), and when analyzed properly, they all show a similar benefit for cardiovascular outcomes with the lower 120 target,” said Dr. Whelton, who led the SPRINT trial. 

“ESPRIT is a nicely done trial. It is reassuring because it is consistent with the other trials, in that it seems that the benefits are much greater than the risk of adverse effects,” he added.

Dr. Whelton pointed out that there are three more trials to come looking at this question, two in Brazil (one in individuals with diabetes and one in stroke survivors) and another trial in China in people with diabetes. “So, we will get more information from these.”

He said that guidelines committees will have to consider a lower systolic BP of 120 mm Hg as the optimal treatment target. In the United States, at present, the target is 130 mm Hg.

The current U.S. guidelines were based on the SPRINT trial, which showed a reduction in cardiovascular events in patients treated to a systolic target of 120 mm Hg versus 140 mm Hg.

Dr. Whelton, who was chair of the 2017 American College of Cardiology/American Heart Association hypertension guidelines committee, explained that, at the time the guidelines were written, there was only one trial, SPRINT, to base the evidence on.

“The committee could all comfortably agree on the 130 mm Hg target, but it was felt that there wasn’t enough evidence at the time to make a recommendation for 120 mm Hg,” he said. “But now we have four trials.”

He said that the trials included patients with high risk for cardiovascular disease, but they all brought some differences to the table, with ACCORD BP conducted in patients with diabetes; SPRINT having enrichment with African American patients, older adults, and patients with kidney disease; RESPECT was in stroke survivors; and ESPRIT had a mix of Chinese patients.

“I think we’ve got a nice mix of different participants and they’re all showing the same signal – that 120 mm Hg is better,” Dr. Whelton said.

But he stressed that although there is now good evidence in favor of lower BP targets, these findings were not being implemented in clinical practice.

“We are doing very badly in terms of implementation. There is a big gap between science and what’s happening in the real world.”

Dr. Whelton pointed out that only 30% of patients in high-income countries are controlled to the 140/90 target and that in low- and middle-income countries, only 8.8% get to that level, never mind lower targets. “The next job is to work on implementing these findings.”

He noted that several studies have shown better results in this regard using a team approach, with nonphysicians playing a major role in following up with patients.

A version of this article appeared on Medscape.com.

Intensive lowering of blood pressure to a systolic target less than 120 mm Hg reduced cardiovascular events among individuals at high risk for cardiovascular disease, compared with standard treatment using a target less than 140 mm Hg in the ESPRIT trial.

“Intensive blood pressure–lowering treatment targeting a systolic pressure below 120 mm Hg for 3 years resulted in a 12% lower incidence of major vascular events, a 39% lower cardiovascular mortality, and 21% lower all-cause mortality than the standard treatment targeting a systolic pressure below 140 mm Hg,” reported lead investigator, Jing Li, MD, PhD, director of the department of preventive medicine at the National Center for Cardiovascular Diseases in Beijing.

The trial included patients with diabetes and those with a history of stroke, two important groups that were excluded in the previous SPRINT trial of intensive BP lowering. Results suggested that the benefit of intensive BP lowering extends to these groups.

The results translate into the prevention of 14 major vascular events and 8 deaths for every 1,000 individuals are treated for 3 years to a target systolic pressure less than 120 mm Hg rather than less than 140 mm Hg, at the cost of an additional three patients experiencing the serious adverse event of syncope, Dr. Li said.

“Our study generates new evidence about benefit and safety of treatment targeting systolic blood pressure below 120 mm Hg among a diverse Asian population, which is generally consistent with those from other ethnicities. Implementing this intensive treatment strategy for high-risk adults has the potential to save more lives and reduce the public health burden of heart disease worldwide,” she concluded.

Dr. Li presented the ESPRIT trial at the annual scientific sessions of the American Heart Association.

The ESPRIT trial included 11,255 Chinese adults (average age, 64 years; 41% women) who had a baseline systolic BP measurement of 130-180 mm Hg (average was 147/83 mm Hg) and either established cardiovascular disease or at least two major risk factors for cardiovascular disease. Of those enrolled, 39% had diabetes, and 27% had a history of stroke.

They were randomly assigned to receive intensive BP treatment, with a systolic BP target less than 120 mm Hg, or standard treatment, with a target measurement less than 140 mm Hg, over a 3-year period. After 1 year, systolic pressure was lowered to 135.6 mm Hg in the standard care group and to 120.3 mm Hg in the intensive treatment group, with values remaining at around the same level for the remainder of the follow-up.

The primary outcome was a composite of myocardial infarction, coronary or noncoronary revascularization, hospitalization/ED visit for heart failure, stroke, or cardiovascular death.

After 3.4 years of follow-up, 624 primary outcome events had occurred in the standard arm (3.6%) versus 547 events in intensive arm (3.2%), a reduction of 12% (hazard ratio, 0.88; 95% confidence interval, 0.78-0.99). This gives a number needed to treat to prevent one event of 74.

Cardiovascular death occurred in 0.5% of the standard group versus 0.3% of the intensive group (HR 0.61; 95% CI, 0.44-0.84); and all-cause death occurred in 1.1% of the standard group versus 0.9% of the intensive group (HR, 0.79; 95% CI, 0.64-0.97).

The individual endpoints of MI, stroke, and heart failure showed positive trends to a reduction with intensive BP lowering, but these did not reach statistical significance.

In terms of serious adverse events, syncope was increased in the intensive group (0.4% vs 0.1%), but there were no significant differences in hypotension, electrolyte abnormality, falls resulting in an injury, acute kidney injury, or renal failure.
 

Should 120 mm Hg be new target?

Commenting on the study, Paul Whelton, MD, chair in global public health at Tulane University, New Orleans, said that the results were consistent with several other trials.  

“When we look at meta-analysis of trials of different levels of blood pressure reduction, all the studies show the same thing – the lower the blood pressure, the better the outcome, with those starting at higher levels gaining the greatest the benefit of blood pressure reductions,” he noted.

“There are four trials that have looked at systolic targets of less than 120 mm Hg versus less than 140 mm Hg (SPRINT, ACCORD BP, RESPECT, and now ESPRIT), and when analyzed properly, they all show a similar benefit for cardiovascular outcomes with the lower 120 target,” said Dr. Whelton, who led the SPRINT trial. 

“ESPRIT is a nicely done trial. It is reassuring because it is consistent with the other trials, in that it seems that the benefits are much greater than the risk of adverse effects,” he added.

Dr. Whelton pointed out that there are three more trials to come looking at this question, two in Brazil (one in individuals with diabetes and one in stroke survivors) and another trial in China in people with diabetes. “So, we will get more information from these.”

He said that guidelines committees will have to consider a lower systolic BP of 120 mm Hg as the optimal treatment target. In the United States, at present, the target is 130 mm Hg.

The current U.S. guidelines were based on the SPRINT trial, which showed a reduction in cardiovascular events in patients treated to a systolic target of 120 mm Hg versus 140 mm Hg.

Dr. Whelton, who was chair of the 2017 American College of Cardiology/American Heart Association hypertension guidelines committee, explained that, at the time the guidelines were written, there was only one trial, SPRINT, to base the evidence on.

“The committee could all comfortably agree on the 130 mm Hg target, but it was felt that there wasn’t enough evidence at the time to make a recommendation for 120 mm Hg,” he said. “But now we have four trials.”

He said that the trials included patients with high risk for cardiovascular disease, but they all brought some differences to the table, with ACCORD BP conducted in patients with diabetes; SPRINT having enrichment with African American patients, older adults, and patients with kidney disease; RESPECT was in stroke survivors; and ESPRIT had a mix of Chinese patients.

“I think we’ve got a nice mix of different participants and they’re all showing the same signal – that 120 mm Hg is better,” Dr. Whelton said.

But he stressed that although there is now good evidence in favor of lower BP targets, these findings were not being implemented in clinical practice.

“We are doing very badly in terms of implementation. There is a big gap between science and what’s happening in the real world.”

Dr. Whelton pointed out that only 30% of patients in high-income countries are controlled to the 140/90 target and that in low- and middle-income countries, only 8.8% get to that level, never mind lower targets. “The next job is to work on implementing these findings.”

He noted that several studies have shown better results in this regard using a team approach, with nonphysicians playing a major role in following up with patients.

A version of this article appeared on Medscape.com.

Intensive lowering of blood pressure to a systolic target less than 120 mm Hg reduced cardiovascular events among individuals at high risk for cardiovascular disease, compared with standard treatment using a target less than 140 mm Hg in the ESPRIT trial.

“Intensive blood pressure–lowering treatment targeting a systolic pressure below 120 mm Hg for 3 years resulted in a 12% lower incidence of major vascular events, a 39% lower cardiovascular mortality, and 21% lower all-cause mortality than the standard treatment targeting a systolic pressure below 140 mm Hg,” reported lead investigator, Jing Li, MD, PhD, director of the department of preventive medicine at the National Center for Cardiovascular Diseases in Beijing.

The trial included patients with diabetes and those with a history of stroke, two important groups that were excluded in the previous SPRINT trial of intensive BP lowering. Results suggested that the benefit of intensive BP lowering extends to these groups.

The results translate into the prevention of 14 major vascular events and 8 deaths for every 1,000 individuals are treated for 3 years to a target systolic pressure less than 120 mm Hg rather than less than 140 mm Hg, at the cost of an additional three patients experiencing the serious adverse event of syncope, Dr. Li said.

“Our study generates new evidence about benefit and safety of treatment targeting systolic blood pressure below 120 mm Hg among a diverse Asian population, which is generally consistent with those from other ethnicities. Implementing this intensive treatment strategy for high-risk adults has the potential to save more lives and reduce the public health burden of heart disease worldwide,” she concluded.

Dr. Li presented the ESPRIT trial at the annual scientific sessions of the American Heart Association.

The ESPRIT trial included 11,255 Chinese adults (average age, 64 years; 41% women) who had a baseline systolic BP measurement of 130-180 mm Hg (average was 147/83 mm Hg) and either established cardiovascular disease or at least two major risk factors for cardiovascular disease. Of those enrolled, 39% had diabetes, and 27% had a history of stroke.

They were randomly assigned to receive intensive BP treatment, with a systolic BP target less than 120 mm Hg, or standard treatment, with a target measurement less than 140 mm Hg, over a 3-year period. After 1 year, systolic pressure was lowered to 135.6 mm Hg in the standard care group and to 120.3 mm Hg in the intensive treatment group, with values remaining at around the same level for the remainder of the follow-up.

The primary outcome was a composite of myocardial infarction, coronary or noncoronary revascularization, hospitalization/ED visit for heart failure, stroke, or cardiovascular death.

After 3.4 years of follow-up, 624 primary outcome events had occurred in the standard arm (3.6%) versus 547 events in intensive arm (3.2%), a reduction of 12% (hazard ratio, 0.88; 95% confidence interval, 0.78-0.99). This gives a number needed to treat to prevent one event of 74.

Cardiovascular death occurred in 0.5% of the standard group versus 0.3% of the intensive group (HR 0.61; 95% CI, 0.44-0.84); and all-cause death occurred in 1.1% of the standard group versus 0.9% of the intensive group (HR, 0.79; 95% CI, 0.64-0.97).

The individual endpoints of MI, stroke, and heart failure showed positive trends to a reduction with intensive BP lowering, but these did not reach statistical significance.

In terms of serious adverse events, syncope was increased in the intensive group (0.4% vs 0.1%), but there were no significant differences in hypotension, electrolyte abnormality, falls resulting in an injury, acute kidney injury, or renal failure.
 

Should 120 mm Hg be new target?

Commenting on the study, Paul Whelton, MD, chair in global public health at Tulane University, New Orleans, said that the results were consistent with several other trials.  

“When we look at meta-analysis of trials of different levels of blood pressure reduction, all the studies show the same thing – the lower the blood pressure, the better the outcome, with those starting at higher levels gaining the greatest the benefit of blood pressure reductions,” he noted.

“There are four trials that have looked at systolic targets of less than 120 mm Hg versus less than 140 mm Hg (SPRINT, ACCORD BP, RESPECT, and now ESPRIT), and when analyzed properly, they all show a similar benefit for cardiovascular outcomes with the lower 120 target,” said Dr. Whelton, who led the SPRINT trial. 

“ESPRIT is a nicely done trial. It is reassuring because it is consistent with the other trials, in that it seems that the benefits are much greater than the risk of adverse effects,” he added.

Dr. Whelton pointed out that there are three more trials to come looking at this question, two in Brazil (one in individuals with diabetes and one in stroke survivors) and another trial in China in people with diabetes. “So, we will get more information from these.”

He said that guidelines committees will have to consider a lower systolic BP of 120 mm Hg as the optimal treatment target. In the United States, at present, the target is 130 mm Hg.

The current U.S. guidelines were based on the SPRINT trial, which showed a reduction in cardiovascular events in patients treated to a systolic target of 120 mm Hg versus 140 mm Hg.

Dr. Whelton, who was chair of the 2017 American College of Cardiology/American Heart Association hypertension guidelines committee, explained that, at the time the guidelines were written, there was only one trial, SPRINT, to base the evidence on.

“The committee could all comfortably agree on the 130 mm Hg target, but it was felt that there wasn’t enough evidence at the time to make a recommendation for 120 mm Hg,” he said. “But now we have four trials.”

He said that the trials included patients with high risk for cardiovascular disease, but they all brought some differences to the table, with ACCORD BP conducted in patients with diabetes; SPRINT having enrichment with African American patients, older adults, and patients with kidney disease; RESPECT was in stroke survivors; and ESPRIT had a mix of Chinese patients.

“I think we’ve got a nice mix of different participants and they’re all showing the same signal – that 120 mm Hg is better,” Dr. Whelton said.

But he stressed that although there is now good evidence in favor of lower BP targets, these findings were not being implemented in clinical practice.

“We are doing very badly in terms of implementation. There is a big gap between science and what’s happening in the real world.”

Dr. Whelton pointed out that only 30% of patients in high-income countries are controlled to the 140/90 target and that in low- and middle-income countries, only 8.8% get to that level, never mind lower targets. “The next job is to work on implementing these findings.”

He noted that several studies have shown better results in this regard using a team approach, with nonphysicians playing a major role in following up with patients.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Indu Subramanian, MD: It’s my pleasure to have Ray Dorsey on our program today. Ray is a professor of neurology at the University of Rochester and has been doing some amazing advocacy work in largely the space of trying to end Parkinson’s disease.

E. Ray Dorsey, MD: Thanks very much for having me, Indu. I’m delighted to be with you.
 

Trichloroethylene and PD

Dr. Subramanian: I wanted to first highlight some of the work that has come out and gotten a large amount of media attention around Camp Lejeune and specifically trichloroethylene (TCE) as a cause of Parkinson’s, and one of the environmental toxins that we talk about as something that is in pretty much everywhere. This paper came out, and you wrote a commentary in JAMA Neurology as well. Perhaps we can summarize the paper and its findings.

Dr. Dorsey: Like most people, I didn’t know what TCE was until about 5 or 6 years ago. TCE is a very simple molecule. It’s got six atoms – two carbon atoms, one hydrogen atom, and three chlorine atoms — hence, its name “trichloroethylene.” There’s a very similar chemical called perchloroethylene, which is widely used in dry cleaning. It’s got one additional chlorine atom, and the prefix “per-” means “four.” I’ll talk about TCE predominantly, but both of these chemicals probably have similar toxicity with respect to Parkinson’s disease.

Research done by Dr. Carlie Tanner and Dr. Sam Goldman about a decade ago showed that in twins who were exposed to this through their work (it’s widely used as a degreasing agent) or hobbies (it’s used in printing and painting, by varnish workers, or by anyone that needs it as a solvent) had a 500% increased risk of developing Parkinson’s disease. Importantly, in that study, they showed that there was a lag time of 10-40 years between exposure to that chemical and the diagnosis of the disease. Because TCE was so widely used, they said that public health implications could be substantial.

What’s Camp Lejeune? Camp Lejeune is a Marine base in North Carolina where many Marines are trained. Between 1953 and 1987 at that Marine base, the drinking water was contaminated with TCE, perchloroethylene, and other toxic chemicals. The reason Camp Lejeune is so infamous is because the Marines knew about the contamination for many years and covered it up.

Indeed, this story only came to the forefront because Jennie Ensminger, the daughter of a Marine drill instructor, developed leukemia at age 6 and died at age 9. Her father, Jerry Ensminger, a retired master sergeant, found out after the fact that these cancer-causing chemicals, including TCE, a known carcinogen, were found at the Marine base and could be an explanation for why his daughter developed and died of leukemia.

Dr. Sam Goldman and Dr. Carlie Tanner and colleagues from UCSF looked at the rates of Parkinson’s among Marines who served at Camp Lejeune during the 1970s and compared that with rates in Marines who served Camp Pendleton on the West Coast. It turned out that the Marines who served at Camp Lejeune had a 70% higher risk of developing Parkinson’s disease than the Marines who served at Camp Pendleton.

Importantly, these Marines, by definition, were healthy. They were young. They were only 20 years old, on average, when they were at Camp Lejeune. They stayed at a Marine base for a short period of time, so on average, they were only there for 2 years. Yet 30 years later, they had a 70% increased risk of developing Parkinson’s disease.
 

Ending Parkinson’s disease

Dr. Subramanian: Wow, that’s pretty profound. You’ve done a large amount of work, and in fact you, along with some of our colleagues wrote a book about ending Parkinson’s disease. I read that book when it came out a couple of years ago, and I was really struck by a few things. Parkinson’s has doubled in the past 40 years and is going to double again in the next 20 years. Can you tell me a little bit about that statistic and why that is? It’s not just because people are aging. What is the sense of that? How do we interpret that?

Dr. Dorsey: According to the Global Burden of Disease study, which I was fortunate to be part of, the number of people with Parkinson’s disease has more than doubled in the past 25 years. A conservative projection based on aging alone suggests that it’s going to double again unless we change something about it. It’s now the world’s fastest-growing brain disease, and it is growing faster than can be explained by aging alone.

If you look at the map of Parkinson’s disease, if you thought it was purely genetic, you would have a relatively uniform map of rates of Parkinson’s disease. In fact, we don’t see that. Rates of Parkinson’s are five times higher in industrialized parts of the world, like the United States and Canada, than they are in sub-Saharan Africa. Rates of Parkinson’s disease are increasing most rapidly in areas of world that are undergoing the most rapid industrialization, such as India and China, where adjusted for age, the rates of Parkinson’s have more than doubled in the past 25 years.

The thesis of our book is that much of Parkinson’s disease is man-made. Work done by your colleagues at UCLA, including Jeff Bronstein and Beate Ritz, have demonstrated that air pollution and certain pesticides are likely fueling the rise of Parkinson’s disease.

Given that in the United States, rates of Parkinson’s disease are actually higher in urban and suburban areas than they are in rural areas, I think that this dry-cleaning chemical – which was widely used in the 1970s in everything from typewriter correction fluid to decaffeinated coffee and [over] 2 pounds per American [was produced] – could be one of the most important causes or contributing factors to Parkinson’s disease.

What to tell patients

Dr. Subramanian: For the general neurologists or practitioners out there watching this, what can they do? If you have a patient whom you suspect may have been exposed to toxins, what should we tell people who aren’t patients yet who are at risk? What are some things that you think would be helpful?

Dr. Dorsey: I think one of the shortcomings of American medicine is that we often just go from diagnosis to treatment. You’re depressed, you get an antidepressant; you have Parkinson’s disease, you get levodopa; you have seizures, you get put on an antiepileptic medication.

I think we need to spend a couple of minutes at least, maybe at the beginning, to go to the diagnosis of the condition and why you have this disease. If you just do a brief occupational history, after you start the exam – things like finding out what people do for a living or did for a living or how they spend their time – I think you’ll find many of these risk factors are actually present.

It’s pretty easy to identify whether people grew up in a rural area and drank well water, which is prone to be contaminated with pesticides. We know that people who drink [contaminated] well water have about a 75% increased risk of developing Parkinson’s disease. I think you can find for people, especially when they grew up, when they were young, that the most relevant exposure might be that when people were young children.

It’s a little bit harder to identify all exposure to TCE. The Marines at Camp Lejeune didn’t know they were drinking the water that was contaminated with this and only found out about it after the fact because Jerry Ensminger launched a 26-year campaign to bring justice for the Marines and their dependents.

Some people who know that they work with chemicals or with solvents might know about this. In New York City, these chemicals are widely used in dry cleaning. They’re readily volatile. These chemicals can evaporate from dry-cleaning buildings and go into the indoor air of apartments above dry cleaners, for example, in New York City. That can be in toxic levels. These readily dissolve in fat, hence their use in degreasing.

There have been studies, for example, in Germany, that found that supermarkets that are simply near a dry cleaner will have TCE or perchloroethylene in the butter and the cheese that they’re selling.

It gets even worse. For example, you bring your daughter into the dry-cleaning building and she’s eating an ice cream cone. When she leaves, she’s eating perchloroethylene and TCE.

It’s a little bit harder to find it, but I think it’s relevant because some people might be still being exposed and some people might still be drinking well water and they rarely have their well tested. For those people, I recommend they get their well tested and I recommend all my patients to get a carbon filter to decrease exposure to pesticides and chemicals. A carbon filter is just like what Brita and Pure and other brands are.

Because they’re chemicals known to cause cancer, I get a little bit concerned about cancer screening. This is most strongly tied to non-Hodgkin lymphoma, liver cancer, and renal cancer. It’s also linked to multiple myeloma, prostate cancer, probably brain cancer, and probably breast cancer, especially in men.

I tell people to be concerned about those, and then I tell people to avoid pesticides if they have Parkinson’s disease in all its forms, not only in the drinking water but in the produce you buy, the food you eat, what you put on your lawn, what’s on the golf course where you play, and the like.

Dr. Subramanian: I would say, just from the wellness perspective, if people are at risk for degenerative disease in terms of their brain health, things like sleep, mind-body practices, exercise, diet (Mediterranean or organic, if you can), and avoiding pesticides are all important. Social connection is important as well – the things that we think are helpful in general as people age and to prevent Alzheimer’s and other things like that.

Dr. Dorsey: These are fantastic ways to modify disease course. The evidence for them is only increasing. There’s an analogy I like to use. If someone is diagnosed with lung cancer, the first thing we tell them to do is to stop smoking. If someone’s diagnosed with Parkinson’s, we don’t tell them to stop getting exposure to pesticides. We don’t tell them to stop dry cleaning their clothes. We don’t tell them to avoid air pollution. These are all risk factors that are increasingly well established for Parkinson’s disease.

I think Parkinson’s disease, fundamentally for the vast majority of people, is an entirely preventable disease. We’re not taking actions to prevent people from getting this very disabling and very deadly disease.
 

Advocacy work

Dr. Subramanian: You and I are quite interested in the sense of being advocates as neurologists, and I think it fuels our passion and helps us to wake up every morning feeling like we have something that is meaningful and purposeful in our lives. Could you describe this as your passion and how it may prevent burnout and what it’s given you as a neurologist?

Dr. Dorsey: The credit for much of this is Dr. Carlie Tanner at UC San Francisco. I had the gift of sabbatical and I started reading the literature, I started reading her literature, and I came away with that, over the past 25 years, she detailed these environmental risk factors that are linked to Parkinson’s disease. Pesticides, these dry-cleaning chemicals, and air pollution. When I read it, I just realized that this was the case.

The same time I was reading her work, I read this book called “How to Survive a Plague,” by David France, who was a member of a group called Act Up, which was a group of men in New York City who reacted to the emergence of HIV in the 1980s. If you remember the 1980s, there was no federal response to HIV. People were blamed for the diseases that they were developing. It was only because brave men and women in New York City and in San Francisco banded together and organized that they changed the course of HIV.

They didn’t just do it for themselves. They did it for all of us. You and I and many people may not have HIV because of their courage. They made HIV a treatable condition. It’s actually more treatable than Parkinson’s disease. It’s associated with a near-normal life expectancy. They also made it a preventable disease. Thousands, if not millions, of us don’t have HIV because of their work. It’s an increasingly less common disease. Rates of HIV are actually decreasing, which is something that you or I would never have expected when we were in medical training.

I can’t think of a better outcome for a neurologist or any physician than to make the diseases that they’re caring for nonexistent ... than if we lived in a world that didn’t have HIV, we lived in a world where lung cancer largely didn’t exist. We’ve had worlds in the past where Parkinson’s probably didn’t exist or existed in extremely small numbers. That might be true for diffuse Lewy body disease and others, and if these diseases are preventable, we can take actions as individuals and as a society to lower our risk.

What a wonderful gift for future generations and many generations to come, hopefully, to live in a world that’s largely devoid of Parkinson’s disease. Just like we live in a world free of typhus. We live in a world free of smallpox. We live in a world where polio is extraordinarily uncommon. We don’t even have treatments for polio because we just don’t have polio. I think we can do the same thing for Parkinson’s disease for the vast majority.

Dr. Subramanian: Thank you so much, Ray, for your advocacy. We’re getting to the point in neurology, which is exciting to me, of possibly primary prevention of some of these disorders. I think we have a role in that, which is exciting for the future.

Dr. Dorsey: Absolutely.
 

Dr. Subramanian is clinical professor, department of neurology, University of California Los Angeles, and director of PADRECC (Parkinson’s Disease Research, Education, and Clinical Centers), West Los Angeles Veterans Association, Los Angeles. She disclosed ties with Acorda Pharma. Dr. Dorsey is the David M. Levy Professor of Neurology, University of Rochester (N.Y.). He disclosed ties to Abbott, AbbVie, Acadia, Acorda Therapeutics, Averitas Pharma, Biogen, BioSensics, Boehringer Ingelheim, Burroughs Wellcome Fund, Caraway Therapeutics, CuraSen, DConsult2, Denali Therapeutics, Eli Lilly, Genentech, Health & Wellness Partners, HMP Education, Included Health, Karger, KOL Groups, Life Sciences, Mediflix, Medrhythms, Merck; MJH Holdings, North American Center for Continuing Medical Education, Novartis, Otsuka, Pfizer, Photopharmics, Praxis Medicine, Roche, Safra Foundation, Sanofi, Seelos Therapeutics, SemCap, Spark Therapeutics, Springer Healthcare, Synapticure, Theravance Biopharmaceuticals, and WebMD.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Indu Subramanian, MD: It’s my pleasure to have Ray Dorsey on our program today. Ray is a professor of neurology at the University of Rochester and has been doing some amazing advocacy work in largely the space of trying to end Parkinson’s disease.

E. Ray Dorsey, MD: Thanks very much for having me, Indu. I’m delighted to be with you.
 

Trichloroethylene and PD

Dr. Subramanian: I wanted to first highlight some of the work that has come out and gotten a large amount of media attention around Camp Lejeune and specifically trichloroethylene (TCE) as a cause of Parkinson’s, and one of the environmental toxins that we talk about as something that is in pretty much everywhere. This paper came out, and you wrote a commentary in JAMA Neurology as well. Perhaps we can summarize the paper and its findings.

Dr. Dorsey: Like most people, I didn’t know what TCE was until about 5 or 6 years ago. TCE is a very simple molecule. It’s got six atoms – two carbon atoms, one hydrogen atom, and three chlorine atoms — hence, its name “trichloroethylene.” There’s a very similar chemical called perchloroethylene, which is widely used in dry cleaning. It’s got one additional chlorine atom, and the prefix “per-” means “four.” I’ll talk about TCE predominantly, but both of these chemicals probably have similar toxicity with respect to Parkinson’s disease.

Research done by Dr. Carlie Tanner and Dr. Sam Goldman about a decade ago showed that in twins who were exposed to this through their work (it’s widely used as a degreasing agent) or hobbies (it’s used in printing and painting, by varnish workers, or by anyone that needs it as a solvent) had a 500% increased risk of developing Parkinson’s disease. Importantly, in that study, they showed that there was a lag time of 10-40 years between exposure to that chemical and the diagnosis of the disease. Because TCE was so widely used, they said that public health implications could be substantial.

What’s Camp Lejeune? Camp Lejeune is a Marine base in North Carolina where many Marines are trained. Between 1953 and 1987 at that Marine base, the drinking water was contaminated with TCE, perchloroethylene, and other toxic chemicals. The reason Camp Lejeune is so infamous is because the Marines knew about the contamination for many years and covered it up.

Indeed, this story only came to the forefront because Jennie Ensminger, the daughter of a Marine drill instructor, developed leukemia at age 6 and died at age 9. Her father, Jerry Ensminger, a retired master sergeant, found out after the fact that these cancer-causing chemicals, including TCE, a known carcinogen, were found at the Marine base and could be an explanation for why his daughter developed and died of leukemia.

Dr. Sam Goldman and Dr. Carlie Tanner and colleagues from UCSF looked at the rates of Parkinson’s among Marines who served at Camp Lejeune during the 1970s and compared that with rates in Marines who served Camp Pendleton on the West Coast. It turned out that the Marines who served at Camp Lejeune had a 70% higher risk of developing Parkinson’s disease than the Marines who served at Camp Pendleton.

Importantly, these Marines, by definition, were healthy. They were young. They were only 20 years old, on average, when they were at Camp Lejeune. They stayed at a Marine base for a short period of time, so on average, they were only there for 2 years. Yet 30 years later, they had a 70% increased risk of developing Parkinson’s disease.
 

Ending Parkinson’s disease

Dr. Subramanian: Wow, that’s pretty profound. You’ve done a large amount of work, and in fact you, along with some of our colleagues wrote a book about ending Parkinson’s disease. I read that book when it came out a couple of years ago, and I was really struck by a few things. Parkinson’s has doubled in the past 40 years and is going to double again in the next 20 years. Can you tell me a little bit about that statistic and why that is? It’s not just because people are aging. What is the sense of that? How do we interpret that?

Dr. Dorsey: According to the Global Burden of Disease study, which I was fortunate to be part of, the number of people with Parkinson’s disease has more than doubled in the past 25 years. A conservative projection based on aging alone suggests that it’s going to double again unless we change something about it. It’s now the world’s fastest-growing brain disease, and it is growing faster than can be explained by aging alone.

If you look at the map of Parkinson’s disease, if you thought it was purely genetic, you would have a relatively uniform map of rates of Parkinson’s disease. In fact, we don’t see that. Rates of Parkinson’s are five times higher in industrialized parts of the world, like the United States and Canada, than they are in sub-Saharan Africa. Rates of Parkinson’s disease are increasing most rapidly in areas of world that are undergoing the most rapid industrialization, such as India and China, where adjusted for age, the rates of Parkinson’s have more than doubled in the past 25 years.

The thesis of our book is that much of Parkinson’s disease is man-made. Work done by your colleagues at UCLA, including Jeff Bronstein and Beate Ritz, have demonstrated that air pollution and certain pesticides are likely fueling the rise of Parkinson’s disease.

Given that in the United States, rates of Parkinson’s disease are actually higher in urban and suburban areas than they are in rural areas, I think that this dry-cleaning chemical – which was widely used in the 1970s in everything from typewriter correction fluid to decaffeinated coffee and [over] 2 pounds per American [was produced] – could be one of the most important causes or contributing factors to Parkinson’s disease.

What to tell patients

Dr. Subramanian: For the general neurologists or practitioners out there watching this, what can they do? If you have a patient whom you suspect may have been exposed to toxins, what should we tell people who aren’t patients yet who are at risk? What are some things that you think would be helpful?

Dr. Dorsey: I think one of the shortcomings of American medicine is that we often just go from diagnosis to treatment. You’re depressed, you get an antidepressant; you have Parkinson’s disease, you get levodopa; you have seizures, you get put on an antiepileptic medication.

I think we need to spend a couple of minutes at least, maybe at the beginning, to go to the diagnosis of the condition and why you have this disease. If you just do a brief occupational history, after you start the exam – things like finding out what people do for a living or did for a living or how they spend their time – I think you’ll find many of these risk factors are actually present.

It’s pretty easy to identify whether people grew up in a rural area and drank well water, which is prone to be contaminated with pesticides. We know that people who drink [contaminated] well water have about a 75% increased risk of developing Parkinson’s disease. I think you can find for people, especially when they grew up, when they were young, that the most relevant exposure might be that when people were young children.

It’s a little bit harder to identify all exposure to TCE. The Marines at Camp Lejeune didn’t know they were drinking the water that was contaminated with this and only found out about it after the fact because Jerry Ensminger launched a 26-year campaign to bring justice for the Marines and their dependents.

Some people who know that they work with chemicals or with solvents might know about this. In New York City, these chemicals are widely used in dry cleaning. They’re readily volatile. These chemicals can evaporate from dry-cleaning buildings and go into the indoor air of apartments above dry cleaners, for example, in New York City. That can be in toxic levels. These readily dissolve in fat, hence their use in degreasing.

There have been studies, for example, in Germany, that found that supermarkets that are simply near a dry cleaner will have TCE or perchloroethylene in the butter and the cheese that they’re selling.

It gets even worse. For example, you bring your daughter into the dry-cleaning building and she’s eating an ice cream cone. When she leaves, she’s eating perchloroethylene and TCE.

It’s a little bit harder to find it, but I think it’s relevant because some people might be still being exposed and some people might still be drinking well water and they rarely have their well tested. For those people, I recommend they get their well tested and I recommend all my patients to get a carbon filter to decrease exposure to pesticides and chemicals. A carbon filter is just like what Brita and Pure and other brands are.

Because they’re chemicals known to cause cancer, I get a little bit concerned about cancer screening. This is most strongly tied to non-Hodgkin lymphoma, liver cancer, and renal cancer. It’s also linked to multiple myeloma, prostate cancer, probably brain cancer, and probably breast cancer, especially in men.

I tell people to be concerned about those, and then I tell people to avoid pesticides if they have Parkinson’s disease in all its forms, not only in the drinking water but in the produce you buy, the food you eat, what you put on your lawn, what’s on the golf course where you play, and the like.

Dr. Subramanian: I would say, just from the wellness perspective, if people are at risk for degenerative disease in terms of their brain health, things like sleep, mind-body practices, exercise, diet (Mediterranean or organic, if you can), and avoiding pesticides are all important. Social connection is important as well – the things that we think are helpful in general as people age and to prevent Alzheimer’s and other things like that.

Dr. Dorsey: These are fantastic ways to modify disease course. The evidence for them is only increasing. There’s an analogy I like to use. If someone is diagnosed with lung cancer, the first thing we tell them to do is to stop smoking. If someone’s diagnosed with Parkinson’s, we don’t tell them to stop getting exposure to pesticides. We don’t tell them to stop dry cleaning their clothes. We don’t tell them to avoid air pollution. These are all risk factors that are increasingly well established for Parkinson’s disease.

I think Parkinson’s disease, fundamentally for the vast majority of people, is an entirely preventable disease. We’re not taking actions to prevent people from getting this very disabling and very deadly disease.
 

Advocacy work

Dr. Subramanian: You and I are quite interested in the sense of being advocates as neurologists, and I think it fuels our passion and helps us to wake up every morning feeling like we have something that is meaningful and purposeful in our lives. Could you describe this as your passion and how it may prevent burnout and what it’s given you as a neurologist?

Dr. Dorsey: The credit for much of this is Dr. Carlie Tanner at UC San Francisco. I had the gift of sabbatical and I started reading the literature, I started reading her literature, and I came away with that, over the past 25 years, she detailed these environmental risk factors that are linked to Parkinson’s disease. Pesticides, these dry-cleaning chemicals, and air pollution. When I read it, I just realized that this was the case.

The same time I was reading her work, I read this book called “How to Survive a Plague,” by David France, who was a member of a group called Act Up, which was a group of men in New York City who reacted to the emergence of HIV in the 1980s. If you remember the 1980s, there was no federal response to HIV. People were blamed for the diseases that they were developing. It was only because brave men and women in New York City and in San Francisco banded together and organized that they changed the course of HIV.

They didn’t just do it for themselves. They did it for all of us. You and I and many people may not have HIV because of their courage. They made HIV a treatable condition. It’s actually more treatable than Parkinson’s disease. It’s associated with a near-normal life expectancy. They also made it a preventable disease. Thousands, if not millions, of us don’t have HIV because of their work. It’s an increasingly less common disease. Rates of HIV are actually decreasing, which is something that you or I would never have expected when we were in medical training.

I can’t think of a better outcome for a neurologist or any physician than to make the diseases that they’re caring for nonexistent ... than if we lived in a world that didn’t have HIV, we lived in a world where lung cancer largely didn’t exist. We’ve had worlds in the past where Parkinson’s probably didn’t exist or existed in extremely small numbers. That might be true for diffuse Lewy body disease and others, and if these diseases are preventable, we can take actions as individuals and as a society to lower our risk.

What a wonderful gift for future generations and many generations to come, hopefully, to live in a world that’s largely devoid of Parkinson’s disease. Just like we live in a world free of typhus. We live in a world free of smallpox. We live in a world where polio is extraordinarily uncommon. We don’t even have treatments for polio because we just don’t have polio. I think we can do the same thing for Parkinson’s disease for the vast majority.

Dr. Subramanian: Thank you so much, Ray, for your advocacy. We’re getting to the point in neurology, which is exciting to me, of possibly primary prevention of some of these disorders. I think we have a role in that, which is exciting for the future.

Dr. Dorsey: Absolutely.
 

Dr. Subramanian is clinical professor, department of neurology, University of California Los Angeles, and director of PADRECC (Parkinson’s Disease Research, Education, and Clinical Centers), West Los Angeles Veterans Association, Los Angeles. She disclosed ties with Acorda Pharma. Dr. Dorsey is the David M. Levy Professor of Neurology, University of Rochester (N.Y.). He disclosed ties to Abbott, AbbVie, Acadia, Acorda Therapeutics, Averitas Pharma, Biogen, BioSensics, Boehringer Ingelheim, Burroughs Wellcome Fund, Caraway Therapeutics, CuraSen, DConsult2, Denali Therapeutics, Eli Lilly, Genentech, Health & Wellness Partners, HMP Education, Included Health, Karger, KOL Groups, Life Sciences, Mediflix, Medrhythms, Merck; MJH Holdings, North American Center for Continuing Medical Education, Novartis, Otsuka, Pfizer, Photopharmics, Praxis Medicine, Roche, Safra Foundation, Sanofi, Seelos Therapeutics, SemCap, Spark Therapeutics, Springer Healthcare, Synapticure, Theravance Biopharmaceuticals, and WebMD.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Indu Subramanian, MD: It’s my pleasure to have Ray Dorsey on our program today. Ray is a professor of neurology at the University of Rochester and has been doing some amazing advocacy work in largely the space of trying to end Parkinson’s disease.

E. Ray Dorsey, MD: Thanks very much for having me, Indu. I’m delighted to be with you.
 

Trichloroethylene and PD

Dr. Subramanian: I wanted to first highlight some of the work that has come out and gotten a large amount of media attention around Camp Lejeune and specifically trichloroethylene (TCE) as a cause of Parkinson’s, and one of the environmental toxins that we talk about as something that is in pretty much everywhere. This paper came out, and you wrote a commentary in JAMA Neurology as well. Perhaps we can summarize the paper and its findings.

Dr. Dorsey: Like most people, I didn’t know what TCE was until about 5 or 6 years ago. TCE is a very simple molecule. It’s got six atoms – two carbon atoms, one hydrogen atom, and three chlorine atoms — hence, its name “trichloroethylene.” There’s a very similar chemical called perchloroethylene, which is widely used in dry cleaning. It’s got one additional chlorine atom, and the prefix “per-” means “four.” I’ll talk about TCE predominantly, but both of these chemicals probably have similar toxicity with respect to Parkinson’s disease.

Research done by Dr. Carlie Tanner and Dr. Sam Goldman about a decade ago showed that in twins who were exposed to this through their work (it’s widely used as a degreasing agent) or hobbies (it’s used in printing and painting, by varnish workers, or by anyone that needs it as a solvent) had a 500% increased risk of developing Parkinson’s disease. Importantly, in that study, they showed that there was a lag time of 10-40 years between exposure to that chemical and the diagnosis of the disease. Because TCE was so widely used, they said that public health implications could be substantial.

What’s Camp Lejeune? Camp Lejeune is a Marine base in North Carolina where many Marines are trained. Between 1953 and 1987 at that Marine base, the drinking water was contaminated with TCE, perchloroethylene, and other toxic chemicals. The reason Camp Lejeune is so infamous is because the Marines knew about the contamination for many years and covered it up.

Indeed, this story only came to the forefront because Jennie Ensminger, the daughter of a Marine drill instructor, developed leukemia at age 6 and died at age 9. Her father, Jerry Ensminger, a retired master sergeant, found out after the fact that these cancer-causing chemicals, including TCE, a known carcinogen, were found at the Marine base and could be an explanation for why his daughter developed and died of leukemia.

Dr. Sam Goldman and Dr. Carlie Tanner and colleagues from UCSF looked at the rates of Parkinson’s among Marines who served at Camp Lejeune during the 1970s and compared that with rates in Marines who served Camp Pendleton on the West Coast. It turned out that the Marines who served at Camp Lejeune had a 70% higher risk of developing Parkinson’s disease than the Marines who served at Camp Pendleton.

Importantly, these Marines, by definition, were healthy. They were young. They were only 20 years old, on average, when they were at Camp Lejeune. They stayed at a Marine base for a short period of time, so on average, they were only there for 2 years. Yet 30 years later, they had a 70% increased risk of developing Parkinson’s disease.
 

Ending Parkinson’s disease

Dr. Subramanian: Wow, that’s pretty profound. You’ve done a large amount of work, and in fact you, along with some of our colleagues wrote a book about ending Parkinson’s disease. I read that book when it came out a couple of years ago, and I was really struck by a few things. Parkinson’s has doubled in the past 40 years and is going to double again in the next 20 years. Can you tell me a little bit about that statistic and why that is? It’s not just because people are aging. What is the sense of that? How do we interpret that?

Dr. Dorsey: According to the Global Burden of Disease study, which I was fortunate to be part of, the number of people with Parkinson’s disease has more than doubled in the past 25 years. A conservative projection based on aging alone suggests that it’s going to double again unless we change something about it. It’s now the world’s fastest-growing brain disease, and it is growing faster than can be explained by aging alone.

If you look at the map of Parkinson’s disease, if you thought it was purely genetic, you would have a relatively uniform map of rates of Parkinson’s disease. In fact, we don’t see that. Rates of Parkinson’s are five times higher in industrialized parts of the world, like the United States and Canada, than they are in sub-Saharan Africa. Rates of Parkinson’s disease are increasing most rapidly in areas of world that are undergoing the most rapid industrialization, such as India and China, where adjusted for age, the rates of Parkinson’s have more than doubled in the past 25 years.

The thesis of our book is that much of Parkinson’s disease is man-made. Work done by your colleagues at UCLA, including Jeff Bronstein and Beate Ritz, have demonstrated that air pollution and certain pesticides are likely fueling the rise of Parkinson’s disease.

Given that in the United States, rates of Parkinson’s disease are actually higher in urban and suburban areas than they are in rural areas, I think that this dry-cleaning chemical – which was widely used in the 1970s in everything from typewriter correction fluid to decaffeinated coffee and [over] 2 pounds per American [was produced] – could be one of the most important causes or contributing factors to Parkinson’s disease.

What to tell patients

Dr. Subramanian: For the general neurologists or practitioners out there watching this, what can they do? If you have a patient whom you suspect may have been exposed to toxins, what should we tell people who aren’t patients yet who are at risk? What are some things that you think would be helpful?

Dr. Dorsey: I think one of the shortcomings of American medicine is that we often just go from diagnosis to treatment. You’re depressed, you get an antidepressant; you have Parkinson’s disease, you get levodopa; you have seizures, you get put on an antiepileptic medication.

I think we need to spend a couple of minutes at least, maybe at the beginning, to go to the diagnosis of the condition and why you have this disease. If you just do a brief occupational history, after you start the exam – things like finding out what people do for a living or did for a living or how they spend their time – I think you’ll find many of these risk factors are actually present.

It’s pretty easy to identify whether people grew up in a rural area and drank well water, which is prone to be contaminated with pesticides. We know that people who drink [contaminated] well water have about a 75% increased risk of developing Parkinson’s disease. I think you can find for people, especially when they grew up, when they were young, that the most relevant exposure might be that when people were young children.

It’s a little bit harder to identify all exposure to TCE. The Marines at Camp Lejeune didn’t know they were drinking the water that was contaminated with this and only found out about it after the fact because Jerry Ensminger launched a 26-year campaign to bring justice for the Marines and their dependents.

Some people who know that they work with chemicals or with solvents might know about this. In New York City, these chemicals are widely used in dry cleaning. They’re readily volatile. These chemicals can evaporate from dry-cleaning buildings and go into the indoor air of apartments above dry cleaners, for example, in New York City. That can be in toxic levels. These readily dissolve in fat, hence their use in degreasing.

There have been studies, for example, in Germany, that found that supermarkets that are simply near a dry cleaner will have TCE or perchloroethylene in the butter and the cheese that they’re selling.

It gets even worse. For example, you bring your daughter into the dry-cleaning building and she’s eating an ice cream cone. When she leaves, she’s eating perchloroethylene and TCE.

It’s a little bit harder to find it, but I think it’s relevant because some people might be still being exposed and some people might still be drinking well water and they rarely have their well tested. For those people, I recommend they get their well tested and I recommend all my patients to get a carbon filter to decrease exposure to pesticides and chemicals. A carbon filter is just like what Brita and Pure and other brands are.

Because they’re chemicals known to cause cancer, I get a little bit concerned about cancer screening. This is most strongly tied to non-Hodgkin lymphoma, liver cancer, and renal cancer. It’s also linked to multiple myeloma, prostate cancer, probably brain cancer, and probably breast cancer, especially in men.

I tell people to be concerned about those, and then I tell people to avoid pesticides if they have Parkinson’s disease in all its forms, not only in the drinking water but in the produce you buy, the food you eat, what you put on your lawn, what’s on the golf course where you play, and the like.

Dr. Subramanian: I would say, just from the wellness perspective, if people are at risk for degenerative disease in terms of their brain health, things like sleep, mind-body practices, exercise, diet (Mediterranean or organic, if you can), and avoiding pesticides are all important. Social connection is important as well – the things that we think are helpful in general as people age and to prevent Alzheimer’s and other things like that.

Dr. Dorsey: These are fantastic ways to modify disease course. The evidence for them is only increasing. There’s an analogy I like to use. If someone is diagnosed with lung cancer, the first thing we tell them to do is to stop smoking. If someone’s diagnosed with Parkinson’s, we don’t tell them to stop getting exposure to pesticides. We don’t tell them to stop dry cleaning their clothes. We don’t tell them to avoid air pollution. These are all risk factors that are increasingly well established for Parkinson’s disease.

I think Parkinson’s disease, fundamentally for the vast majority of people, is an entirely preventable disease. We’re not taking actions to prevent people from getting this very disabling and very deadly disease.
 

Advocacy work

Dr. Subramanian: You and I are quite interested in the sense of being advocates as neurologists, and I think it fuels our passion and helps us to wake up every morning feeling like we have something that is meaningful and purposeful in our lives. Could you describe this as your passion and how it may prevent burnout and what it’s given you as a neurologist?

Dr. Dorsey: The credit for much of this is Dr. Carlie Tanner at UC San Francisco. I had the gift of sabbatical and I started reading the literature, I started reading her literature, and I came away with that, over the past 25 years, she detailed these environmental risk factors that are linked to Parkinson’s disease. Pesticides, these dry-cleaning chemicals, and air pollution. When I read it, I just realized that this was the case.

The same time I was reading her work, I read this book called “How to Survive a Plague,” by David France, who was a member of a group called Act Up, which was a group of men in New York City who reacted to the emergence of HIV in the 1980s. If you remember the 1980s, there was no federal response to HIV. People were blamed for the diseases that they were developing. It was only because brave men and women in New York City and in San Francisco banded together and organized that they changed the course of HIV.

They didn’t just do it for themselves. They did it for all of us. You and I and many people may not have HIV because of their courage. They made HIV a treatable condition. It’s actually more treatable than Parkinson’s disease. It’s associated with a near-normal life expectancy. They also made it a preventable disease. Thousands, if not millions, of us don’t have HIV because of their work. It’s an increasingly less common disease. Rates of HIV are actually decreasing, which is something that you or I would never have expected when we were in medical training.

I can’t think of a better outcome for a neurologist or any physician than to make the diseases that they’re caring for nonexistent ... than if we lived in a world that didn’t have HIV, we lived in a world where lung cancer largely didn’t exist. We’ve had worlds in the past where Parkinson’s probably didn’t exist or existed in extremely small numbers. That might be true for diffuse Lewy body disease and others, and if these diseases are preventable, we can take actions as individuals and as a society to lower our risk.

What a wonderful gift for future generations and many generations to come, hopefully, to live in a world that’s largely devoid of Parkinson’s disease. Just like we live in a world free of typhus. We live in a world free of smallpox. We live in a world where polio is extraordinarily uncommon. We don’t even have treatments for polio because we just don’t have polio. I think we can do the same thing for Parkinson’s disease for the vast majority.

Dr. Subramanian: Thank you so much, Ray, for your advocacy. We’re getting to the point in neurology, which is exciting to me, of possibly primary prevention of some of these disorders. I think we have a role in that, which is exciting for the future.

Dr. Dorsey: Absolutely.
 

Dr. Subramanian is clinical professor, department of neurology, University of California Los Angeles, and director of PADRECC (Parkinson’s Disease Research, Education, and Clinical Centers), West Los Angeles Veterans Association, Los Angeles. She disclosed ties with Acorda Pharma. Dr. Dorsey is the David M. Levy Professor of Neurology, University of Rochester (N.Y.). He disclosed ties to Abbott, AbbVie, Acadia, Acorda Therapeutics, Averitas Pharma, Biogen, BioSensics, Boehringer Ingelheim, Burroughs Wellcome Fund, Caraway Therapeutics, CuraSen, DConsult2, Denali Therapeutics, Eli Lilly, Genentech, Health & Wellness Partners, HMP Education, Included Health, Karger, KOL Groups, Life Sciences, Mediflix, Medrhythms, Merck; MJH Holdings, North American Center for Continuing Medical Education, Novartis, Otsuka, Pfizer, Photopharmics, Praxis Medicine, Roche, Safra Foundation, Sanofi, Seelos Therapeutics, SemCap, Spark Therapeutics, Springer Healthcare, Synapticure, Theravance Biopharmaceuticals, and WebMD.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Robert Louis Stevenson famously said, “Wine is bottled poetry.” And I think it works quite well. I’ve had wines that are simple, elegant, and unpretentious like Emily Dickinson, and passionate and mysterious like Pablo Neruda. And I’ve had wines that are more analogous to the limerick you might read scrawled on a rest-stop bathroom wall. Those ones give me headaches.

Wine headaches are on my mind this week, not only because of the incoming tide of Beaujolais nouveau, but because of a new study which claims to have finally explained the link between wine consumption and headaches – and apparently it’s not just the alcohol.

Headaches are common, and headaches after drinking alcohol are particularly common. An interesting epidemiologic phenomenon, not yet adequately explained, is why red wine is associated with more headache than other forms of alcohol. There have been many studies fingering many suspects, from sulfites to tannins to various phenolic compounds, but none have really provided a concrete explanation for what might be going on.

A new hypothesis came to the fore on Nov. 20 in the journal Scientific Reports:

To understand the idea, first a reminder of what happens when you drink alcohol, physiologically.

Alcohol is metabolized by the enzyme alcohol dehydrogenase in the gut and then in the liver. That turns it into acetaldehyde, a toxic metabolite. In most of us, aldehyde dehydrogenase (ALDH) quickly metabolizes acetaldehyde to the inert acetate, which can be safely excreted.

Dr. F. Perry Wilson

Dr. F. Perry Wilson

Scientific Reports

So let’s do some math. To make the numbers easy, let’s say you drank a liter of Australian wine, taking in 50 mg of quercetin glucuronide.

How much of that gets into your bloodstream? Some studies suggest a bioavailability of less than 1%, which basically means none and should probably put the quercetin hypothesis to bed. But there is some variation here too; it seems to depend on the form of quercetin you ingest.

Let’s say all 50 mg gets into your bloodstream. What blood concentration would that lead to? Well, I’ll keep the stoichiometry in the graphics and just say that if we assume that the volume of distribution of the compound is restricted to plasma alone, then you could achieve similar concentrations to what was done in petri dishes during this study.

Dr. F. Perry Wilson

Dr. Wilson is associate professor of medicine and public health and director of the Clinical and Translational Research Accelerator at Yale University, New Haven, Conn. He has disclosed no relevant financial relationships.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Robert Louis Stevenson famously said, “Wine is bottled poetry.” And I think it works quite well. I’ve had wines that are simple, elegant, and unpretentious like Emily Dickinson, and passionate and mysterious like Pablo Neruda. And I’ve had wines that are more analogous to the limerick you might read scrawled on a rest-stop bathroom wall. Those ones give me headaches.

Wine headaches are on my mind this week, not only because of the incoming tide of Beaujolais nouveau, but because of a new study which claims to have finally explained the link between wine consumption and headaches – and apparently it’s not just the alcohol.

Headaches are common, and headaches after drinking alcohol are particularly common. An interesting epidemiologic phenomenon, not yet adequately explained, is why red wine is associated with more headache than other forms of alcohol. There have been many studies fingering many suspects, from sulfites to tannins to various phenolic compounds, but none have really provided a concrete explanation for what might be going on.

A new hypothesis came to the fore on Nov. 20 in the journal Scientific Reports:

To understand the idea, first a reminder of what happens when you drink alcohol, physiologically.

Alcohol is metabolized by the enzyme alcohol dehydrogenase in the gut and then in the liver. That turns it into acetaldehyde, a toxic metabolite. In most of us, aldehyde dehydrogenase (ALDH) quickly metabolizes acetaldehyde to the inert acetate, which can be safely excreted.

Dr. F. Perry Wilson

Dr. F. Perry Wilson

Scientific Reports

So let’s do some math. To make the numbers easy, let’s say you drank a liter of Australian wine, taking in 50 mg of quercetin glucuronide.

How much of that gets into your bloodstream? Some studies suggest a bioavailability of less than 1%, which basically means none and should probably put the quercetin hypothesis to bed. But there is some variation here too; it seems to depend on the form of quercetin you ingest.

Let’s say all 50 mg gets into your bloodstream. What blood concentration would that lead to? Well, I’ll keep the stoichiometry in the graphics and just say that if we assume that the volume of distribution of the compound is restricted to plasma alone, then you could achieve similar concentrations to what was done in petri dishes during this study.