Veterans diagnosed with epilepsy have a significantly higher mortality rate if they experience a traumatic brain injury either before or within 6 months of an epilepsy diagnosis, according to recent research published in Epilepsia.

In a retrospective cohort study, Ali Roghani, PhD, of the division of epidemiology at the University of Utah School of Medicine in Salt Lake City, and colleagues evaluated 938,890 veterans between 2000 and 2019 in the Defense Health Agency and the Veterans Health Administration who served in the US military after the September 11 attacks. Overall, 27,436 veterans met criteria for a diagnosis of epilepsy, 264,890 had received a diagnosis for a traumatic brain injury (TBI), and the remaining patients had neither epilepsy nor TBI.

Among the veterans with no epilepsy, 248,714 veterans had a TBI diagnosis, while in the group of patients with epilepsy, 10,358 veterans experienced a TBI before their epilepsy diagnosis, 1598 were diagnosed with a TBI within 6 months of epilepsy, and 4310 veterans had a TBI 6 months after an epilepsy diagnosis. The researchers assessed all-cause mortality in each group, calculating cumulative mortality rates compared with the group of veterans who had no TBI and no epilepsy diagnosis.

Dr. Roghani and colleagues found a significantly higher mortality rate among veterans who developed epilepsy compared with a control group with neither epilepsy nor TBI (6.26% vs. 1.12%; P < .01), with a majority of veterans in the group who died being White (67.4%) men (89.9%). Compared with veterans who were deceased, nondeceased veterans were significantly more likely to have a history of being deployed (70.7% vs. 64.8%; P < .001), were less likely to be in the army (52.2% vs. 55.0%; P < .001), and were more likely to reach the rank of officer or warrant officer (8.1% vs. 7.6%; P = .014).

There were also significant differences in clinical characteristics between nondeceased and deceased veterans, including a higher rate of substance abuse disorder, smoking history, cardiovascular disease, stroke, transient ischemic attack, cancer, liver disease, kidney disease, or other injury as well as overdose, suicidal ideation, and homelessness. “Most clinical conditions were significantly different between deceased and nondeceased in part due to the large cohort size,” the researchers said.

After performing Cox regression analyses, the researchers found a higher mortality risk in veterans with epilepsy and/or TBIs among those who developed a TBI within 6 months of an epilepsy diagnosis (hazard ratio [HR], 5.02; 95% CI, 4.21-5.99), had a TBI prior to epilepsy (HR, 4.25; 95% CI, 3.89-4.58), had epilepsy alone (HR, 4.00; 95% CI, 3.67-4.36), had a TBI more than 6 months after an epilepsy diagnosis (HR, 2.49; 95% CI, 2.17-2.85), and those who had epilepsy alone (HR, 1.30; 95% CI, 1.25-1.36) compared with veterans who had neither epilepsy nor a TBI.

“The temporal relationship with TBI that occurred within 6 months after epilepsy diagnosis may suggest an increased vulnerability to accidents, severe injuries, or TBI resulting from seizures, potentially elevating mortality risk,” Dr. Roghani and colleagues wrote.

The researchers said the results “raise concerns” about the subgroup of patients who are diagnosed with epilepsy close to experiencing a TBI.

“Our results provide information regarding the temporal relationship between epilepsy and TBI regarding mortality in a cohort of post-9/11 veterans, which highlights the need for enhanced primary prevention, such as more access to health care among people with epilepsy and TBI,” they said. “Given the rising incidence of TBI in both the military and civilian populations, these findings suggest close monitoring might be crucial to develop effective prevention strategies for long-term complications, particularly [post-traumatic epilepsy].”
 

Reevaluating the Treatment of Epilepsy

Juliann Paolicchi, MD, a neurologist and member of the epilepsy team at Northwell Health in New York, who was not involved with the study, said in an interview that TBIs have been studied more closely since the beginning of conflicts in the Middle East, particularly in Iran and Afghanistan, where “newer artillery causes more diffuse traumatic injury to the brain and the body than the effects of more typical weaponry.”

Northwell Health

Veterans diagnosed with epilepsy have a significantly higher mortality rate if they experience a traumatic brain injury either before or within 6 months of an epilepsy diagnosis, according to recent research published in Epilepsia.

In a retrospective cohort study, Ali Roghani, PhD, of the division of epidemiology at the University of Utah School of Medicine in Salt Lake City, and colleagues evaluated 938,890 veterans between 2000 and 2019 in the Defense Health Agency and the Veterans Health Administration who served in the US military after the September 11 attacks. Overall, 27,436 veterans met criteria for a diagnosis of epilepsy, 264,890 had received a diagnosis for a traumatic brain injury (TBI), and the remaining patients had neither epilepsy nor TBI.

Among the veterans with no epilepsy, 248,714 veterans had a TBI diagnosis, while in the group of patients with epilepsy, 10,358 veterans experienced a TBI before their epilepsy diagnosis, 1598 were diagnosed with a TBI within 6 months of epilepsy, and 4310 veterans had a TBI 6 months after an epilepsy diagnosis. The researchers assessed all-cause mortality in each group, calculating cumulative mortality rates compared with the group of veterans who had no TBI and no epilepsy diagnosis.

Dr. Roghani and colleagues found a significantly higher mortality rate among veterans who developed epilepsy compared with a control group with neither epilepsy nor TBI (6.26% vs. 1.12%; P < .01), with a majority of veterans in the group who died being White (67.4%) men (89.9%). Compared with veterans who were deceased, nondeceased veterans were significantly more likely to have a history of being deployed (70.7% vs. 64.8%; P < .001), were less likely to be in the army (52.2% vs. 55.0%; P < .001), and were more likely to reach the rank of officer or warrant officer (8.1% vs. 7.6%; P = .014).

There were also significant differences in clinical characteristics between nondeceased and deceased veterans, including a higher rate of substance abuse disorder, smoking history, cardiovascular disease, stroke, transient ischemic attack, cancer, liver disease, kidney disease, or other injury as well as overdose, suicidal ideation, and homelessness. “Most clinical conditions were significantly different between deceased and nondeceased in part due to the large cohort size,” the researchers said.

After performing Cox regression analyses, the researchers found a higher mortality risk in veterans with epilepsy and/or TBIs among those who developed a TBI within 6 months of an epilepsy diagnosis (hazard ratio [HR], 5.02; 95% CI, 4.21-5.99), had a TBI prior to epilepsy (HR, 4.25; 95% CI, 3.89-4.58), had epilepsy alone (HR, 4.00; 95% CI, 3.67-4.36), had a TBI more than 6 months after an epilepsy diagnosis (HR, 2.49; 95% CI, 2.17-2.85), and those who had epilepsy alone (HR, 1.30; 95% CI, 1.25-1.36) compared with veterans who had neither epilepsy nor a TBI.

“The temporal relationship with TBI that occurred within 6 months after epilepsy diagnosis may suggest an increased vulnerability to accidents, severe injuries, or TBI resulting from seizures, potentially elevating mortality risk,” Dr. Roghani and colleagues wrote.

The researchers said the results “raise concerns” about the subgroup of patients who are diagnosed with epilepsy close to experiencing a TBI.

“Our results provide information regarding the temporal relationship between epilepsy and TBI regarding mortality in a cohort of post-9/11 veterans, which highlights the need for enhanced primary prevention, such as more access to health care among people with epilepsy and TBI,” they said. “Given the rising incidence of TBI in both the military and civilian populations, these findings suggest close monitoring might be crucial to develop effective prevention strategies for long-term complications, particularly [post-traumatic epilepsy].”
 

Reevaluating the Treatment of Epilepsy

Juliann Paolicchi, MD, a neurologist and member of the epilepsy team at Northwell Health in New York, who was not involved with the study, said in an interview that TBIs have been studied more closely since the beginning of conflicts in the Middle East, particularly in Iran and Afghanistan, where “newer artillery causes more diffuse traumatic injury to the brain and the body than the effects of more typical weaponry.”

Northwell Health

Veterans diagnosed with epilepsy have a significantly higher mortality rate if they experience a traumatic brain injury either before or within 6 months of an epilepsy diagnosis, according to recent research published in Epilepsia.

In a retrospective cohort study, Ali Roghani, PhD, of the division of epidemiology at the University of Utah School of Medicine in Salt Lake City, and colleagues evaluated 938,890 veterans between 2000 and 2019 in the Defense Health Agency and the Veterans Health Administration who served in the US military after the September 11 attacks. Overall, 27,436 veterans met criteria for a diagnosis of epilepsy, 264,890 had received a diagnosis for a traumatic brain injury (TBI), and the remaining patients had neither epilepsy nor TBI.

Among the veterans with no epilepsy, 248,714 veterans had a TBI diagnosis, while in the group of patients with epilepsy, 10,358 veterans experienced a TBI before their epilepsy diagnosis, 1598 were diagnosed with a TBI within 6 months of epilepsy, and 4310 veterans had a TBI 6 months after an epilepsy diagnosis. The researchers assessed all-cause mortality in each group, calculating cumulative mortality rates compared with the group of veterans who had no TBI and no epilepsy diagnosis.

Dr. Roghani and colleagues found a significantly higher mortality rate among veterans who developed epilepsy compared with a control group with neither epilepsy nor TBI (6.26% vs. 1.12%; P < .01), with a majority of veterans in the group who died being White (67.4%) men (89.9%). Compared with veterans who were deceased, nondeceased veterans were significantly more likely to have a history of being deployed (70.7% vs. 64.8%; P < .001), were less likely to be in the army (52.2% vs. 55.0%; P < .001), and were more likely to reach the rank of officer or warrant officer (8.1% vs. 7.6%; P = .014).

There were also significant differences in clinical characteristics between nondeceased and deceased veterans, including a higher rate of substance abuse disorder, smoking history, cardiovascular disease, stroke, transient ischemic attack, cancer, liver disease, kidney disease, or other injury as well as overdose, suicidal ideation, and homelessness. “Most clinical conditions were significantly different between deceased and nondeceased in part due to the large cohort size,” the researchers said.

After performing Cox regression analyses, the researchers found a higher mortality risk in veterans with epilepsy and/or TBIs among those who developed a TBI within 6 months of an epilepsy diagnosis (hazard ratio [HR], 5.02; 95% CI, 4.21-5.99), had a TBI prior to epilepsy (HR, 4.25; 95% CI, 3.89-4.58), had epilepsy alone (HR, 4.00; 95% CI, 3.67-4.36), had a TBI more than 6 months after an epilepsy diagnosis (HR, 2.49; 95% CI, 2.17-2.85), and those who had epilepsy alone (HR, 1.30; 95% CI, 1.25-1.36) compared with veterans who had neither epilepsy nor a TBI.

“The temporal relationship with TBI that occurred within 6 months after epilepsy diagnosis may suggest an increased vulnerability to accidents, severe injuries, or TBI resulting from seizures, potentially elevating mortality risk,” Dr. Roghani and colleagues wrote.

The researchers said the results “raise concerns” about the subgroup of patients who are diagnosed with epilepsy close to experiencing a TBI.

“Our results provide information regarding the temporal relationship between epilepsy and TBI regarding mortality in a cohort of post-9/11 veterans, which highlights the need for enhanced primary prevention, such as more access to health care among people with epilepsy and TBI,” they said. “Given the rising incidence of TBI in both the military and civilian populations, these findings suggest close monitoring might be crucial to develop effective prevention strategies for long-term complications, particularly [post-traumatic epilepsy].”
 

Reevaluating the Treatment of Epilepsy

Juliann Paolicchi, MD, a neurologist and member of the epilepsy team at Northwell Health in New York, who was not involved with the study, said in an interview that TBIs have been studied more closely since the beginning of conflicts in the Middle East, particularly in Iran and Afghanistan, where “newer artillery causes more diffuse traumatic injury to the brain and the body than the effects of more typical weaponry.”

Northwell Health

Illicit use of the veterinary tranquilizer xylazine continues to spread across the United States. The drug, which is increasingly mixed with fentanyl, often fails to respond to the opioid overdose reversal medication naloxone and can cause severe necrotic lesions.

A report released by Millennium Health, a specialty lab that provides medication monitoring for pain management, drug treatment, and behavioral and substance use disorder treatment centers across the country, showed the number of urine specimens collected and tested at the US drug treatment centers were positive for xylazine in the most recent 6 months.

As previously reported by this news organization, in late 2022, the US Food and Drug Administration (FDA) issued a communication alerting clinicians about the special management required for opioid overdoses tainted with xylazine, which is also known as “tranq” or “tranq dope.”

Subsequently, in early 2023, The White House Office of National Drug Control Policy designated xylazine combined with fentanyl as an emerging threat to the United States.

Both the FDA and the Drug Enforcement Administration have taken steps to try to stop trafficking of the combination. However, despite these efforts, xylazine use has continued to spread.

The Millennium Health Signals report showed that the greatest increase in xylazine use was largely in the western United States. In the first 6 months of 2023, 3% of urine drug tests (UDTs) in Washington, Oregon, California, Hawaii, and Alaska were positive for xylazine. From November 2023 to April 2024, this rose to 8%, a 147% increase. In the Mountain West, xylazine-positive UDTs increased from 2% in 2023 to 4% in 2024, an increase of 94%. In addition to growth in the West, the report showed that xylazine use increased by more than 100% in New England — from 14% in 2023 to 28% in 2024.

Nationally, 16% of all urine specimens were positive for xylazine from late 2023 to April 2024, up slightly from 14% from April to October 2023.

Xylazine use was highest in the East and in the mid-Atlantic United States. Still, positivity rates in the mid-Atlantic dropped from 44% to 33%. The states included in that group were New York, Pennsylvania, Delaware, and New Jersey. East North Central states (Ohio, Michigan, Wisconsin, Indiana, and Illinois) also experienced a decline in positive tests from 32% to 30%.

The South Atlantic states, which include Maryland, Virginia, West Virginia, North and South Carolina, Georgia, and Florida, had a 17% increase in positivity — from 22% to 26%.

From April 2023 to April 2024 state-level UDT positivity rates were 40% in Pennsylvania, 37% in New York, and 35% in Ohio. But rates vary by locality. In Clermont and Hamilton counties in Ohio — both in the Cincinnati area — about 70% of specimens were positive for xylazine.

About one third of specimens in Maryland and South Carolina contained xylazine.

“Because xylazine exposure remains a significant challenge in the East and is a growing concern in the West, clinicians across the US need to be prepared to recognize and address the consequences of xylazine use — like diminished responses to naloxone and severe skin wounds that may lead to amputation — among people who use fentanyl,” Millennium Health Chief Clinical Officer Angela Huskey, PharmD, said in a press release.

The Health Signals Alert analyzed more than 50,000 fentanyl-positive UDT specimens collected between April 12, 2023, and April 11, 2024. Millennium Health researchers analyzed xylazine positivity rates in fentanyl-positive UDT specimens by the US Census Division and state.

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

Illicit use of the veterinary tranquilizer xylazine continues to spread across the United States. The drug, which is increasingly mixed with fentanyl, often fails to respond to the opioid overdose reversal medication naloxone and can cause severe necrotic lesions.

A report released by Millennium Health, a specialty lab that provides medication monitoring for pain management, drug treatment, and behavioral and substance use disorder treatment centers across the country, showed the number of urine specimens collected and tested at the US drug treatment centers were positive for xylazine in the most recent 6 months.

As previously reported by this news organization, in late 2022, the US Food and Drug Administration (FDA) issued a communication alerting clinicians about the special management required for opioid overdoses tainted with xylazine, which is also known as “tranq” or “tranq dope.”

Subsequently, in early 2023, The White House Office of National Drug Control Policy designated xylazine combined with fentanyl as an emerging threat to the United States.

Both the FDA and the Drug Enforcement Administration have taken steps to try to stop trafficking of the combination. However, despite these efforts, xylazine use has continued to spread.

The Millennium Health Signals report showed that the greatest increase in xylazine use was largely in the western United States. In the first 6 months of 2023, 3% of urine drug tests (UDTs) in Washington, Oregon, California, Hawaii, and Alaska were positive for xylazine. From November 2023 to April 2024, this rose to 8%, a 147% increase. In the Mountain West, xylazine-positive UDTs increased from 2% in 2023 to 4% in 2024, an increase of 94%. In addition to growth in the West, the report showed that xylazine use increased by more than 100% in New England — from 14% in 2023 to 28% in 2024.

Nationally, 16% of all urine specimens were positive for xylazine from late 2023 to April 2024, up slightly from 14% from April to October 2023.

Xylazine use was highest in the East and in the mid-Atlantic United States. Still, positivity rates in the mid-Atlantic dropped from 44% to 33%. The states included in that group were New York, Pennsylvania, Delaware, and New Jersey. East North Central states (Ohio, Michigan, Wisconsin, Indiana, and Illinois) also experienced a decline in positive tests from 32% to 30%.

The South Atlantic states, which include Maryland, Virginia, West Virginia, North and South Carolina, Georgia, and Florida, had a 17% increase in positivity — from 22% to 26%.

From April 2023 to April 2024 state-level UDT positivity rates were 40% in Pennsylvania, 37% in New York, and 35% in Ohio. But rates vary by locality. In Clermont and Hamilton counties in Ohio — both in the Cincinnati area — about 70% of specimens were positive for xylazine.

About one third of specimens in Maryland and South Carolina contained xylazine.

“Because xylazine exposure remains a significant challenge in the East and is a growing concern in the West, clinicians across the US need to be prepared to recognize and address the consequences of xylazine use — like diminished responses to naloxone and severe skin wounds that may lead to amputation — among people who use fentanyl,” Millennium Health Chief Clinical Officer Angela Huskey, PharmD, said in a press release.

The Health Signals Alert analyzed more than 50,000 fentanyl-positive UDT specimens collected between April 12, 2023, and April 11, 2024. Millennium Health researchers analyzed xylazine positivity rates in fentanyl-positive UDT specimens by the US Census Division and state.

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

Illicit use of the veterinary tranquilizer xylazine continues to spread across the United States. The drug, which is increasingly mixed with fentanyl, often fails to respond to the opioid overdose reversal medication naloxone and can cause severe necrotic lesions.

A report released by Millennium Health, a specialty lab that provides medication monitoring for pain management, drug treatment, and behavioral and substance use disorder treatment centers across the country, showed the number of urine specimens collected and tested at the US drug treatment centers were positive for xylazine in the most recent 6 months.

As previously reported by this news organization, in late 2022, the US Food and Drug Administration (FDA) issued a communication alerting clinicians about the special management required for opioid overdoses tainted with xylazine, which is also known as “tranq” or “tranq dope.”

Subsequently, in early 2023, The White House Office of National Drug Control Policy designated xylazine combined with fentanyl as an emerging threat to the United States.

Both the FDA and the Drug Enforcement Administration have taken steps to try to stop trafficking of the combination. However, despite these efforts, xylazine use has continued to spread.

The Millennium Health Signals report showed that the greatest increase in xylazine use was largely in the western United States. In the first 6 months of 2023, 3% of urine drug tests (UDTs) in Washington, Oregon, California, Hawaii, and Alaska were positive for xylazine. From November 2023 to April 2024, this rose to 8%, a 147% increase. In the Mountain West, xylazine-positive UDTs increased from 2% in 2023 to 4% in 2024, an increase of 94%. In addition to growth in the West, the report showed that xylazine use increased by more than 100% in New England — from 14% in 2023 to 28% in 2024.

Nationally, 16% of all urine specimens were positive for xylazine from late 2023 to April 2024, up slightly from 14% from April to October 2023.

Xylazine use was highest in the East and in the mid-Atlantic United States. Still, positivity rates in the mid-Atlantic dropped from 44% to 33%. The states included in that group were New York, Pennsylvania, Delaware, and New Jersey. East North Central states (Ohio, Michigan, Wisconsin, Indiana, and Illinois) also experienced a decline in positive tests from 32% to 30%.

The South Atlantic states, which include Maryland, Virginia, West Virginia, North and South Carolina, Georgia, and Florida, had a 17% increase in positivity — from 22% to 26%.

From April 2023 to April 2024 state-level UDT positivity rates were 40% in Pennsylvania, 37% in New York, and 35% in Ohio. But rates vary by locality. In Clermont and Hamilton counties in Ohio — both in the Cincinnati area — about 70% of specimens were positive for xylazine.

About one third of specimens in Maryland and South Carolina contained xylazine.

“Because xylazine exposure remains a significant challenge in the East and is a growing concern in the West, clinicians across the US need to be prepared to recognize and address the consequences of xylazine use — like diminished responses to naloxone and severe skin wounds that may lead to amputation — among people who use fentanyl,” Millennium Health Chief Clinical Officer Angela Huskey, PharmD, said in a press release.

The Health Signals Alert analyzed more than 50,000 fentanyl-positive UDT specimens collected between April 12, 2023, and April 11, 2024. Millennium Health researchers analyzed xylazine positivity rates in fentanyl-positive UDT specimens by the US Census Division and state.

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

Neurologic symptoms of long COVID are vast, common, hard to treat, disabling, and can mimic dozens of other syndromes, with some symptoms as serious as those seen in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and postural orthostatic tachycardia syndrome (POTS).

Now, recent evidence has suggested long COVID is primarily an autonomic nervous system disorder.

Patients with long COVID increasingly complain of extreme fatigue, brain fog, cognitive issues, dizziness, irregular heart rhythms, and high or low blood pressure, all features seen with dysautonomia — dysregulation of the autonomic nervous system.

Their lives may never be the same.

Lindsay S. McAlpine, MD, a specialist in the neurologic sequelae of COVID-19 at the Yale School of Medicine and director of the Yale NeuroCOVID Clinic, New Haven, Connecticut, treats patients who struggle with neurologic symptoms even after disease recovery.

“Some people have the brain fog and the shortness of breath; some have the palpitations and the headaches ... it’s kind of a mix and match,” she said.

Dr. McAlpine’s research has been slowly building up into what could bring about a significant breakthrough in treating some of the most misunderstood and difficult-to-treat symptoms of long COVID.
 

The Effect of Vascular Inflammation on Long COVID

The National Institute of Neurological Disorders and Stroke recently awarded her a 5-year K23 grant to support her ongoing study, “Magnetic Resonance Imaging Biomarkers of Post-COVID-19 Cerebral Microvascular Dysfunction.”

Using advanced MRI techniques to identify microvascular dysfunction biomarkers in the brain, McAlpine hopes to unearth and better understand the pathophysiology behind neurologic issues post-COVID.

Dr. McAlpine said, “What we’re seeing is that there’s a unique signature of vascular inflammation in long COVID that is distinct from acute COVID. And it has to do with endothelial apathy and platelet dysfunction.”

She’s also looking into whether microvascular dysfunction could increase one’s risk for small vessel disease. Her research is quantitatively building an overall pathophysiology piece by piece.

“We’re quantifying cognitive dysfunction and using objective testing ... a very rigorous 3-hour protocol to really identify the patterns of weakness until we find deficits in memory working and declarative memory, deficits in executive functioning, and others. Those are the three pieces that I’m trying to piece together: The MRI, the blood work, and the cognitive testing,” she said.

Ultimately, Dr. McAlpine believes long COVID will eventually be classified as a peripheral autonomic disorder. The damage being wrought to the whole body also damages the brain’s vasculature, and Dr. McAlpine’s MRI techniques probe at this connection.

“Some of my MRI techniques are dependent on the very subtle changes in blood flow to different regions in response to demand. Brain fog has been a key symptom of POTS and ME/CFS. And it’s now a key symptom of long COVID ... what I’m looking at in some of my studies is how and in which parts of the brain are affected by this,” she said.

Dr. McAlpine’s interest in COVID’s effect on our nervous system goes back all the way to the first wave of patients with COVID, where she noticed an unusually high incidence of ischemic stroke.

“We recognized that COVID really has a huge impact on the vessels ... there’s quite a bit of vascular inflammation. In terms of neurology, we were seeing quite a bit of ischemic stroke, which is unusual,” she said.

Patients don’t normally present with stroke while infected with a virus. Seeking answers, she conducted a stroke study in patients with acute COVID and found profound endotheliopathy — damage to key cells in the lining of blood vessels — leading to a cascade of dysfunction and clotting.
 

A Constellation of Neuropsychiatric Symptoms

In early June, Dr. McAlpine gave a presentation of her research at the Demystifying Long COVID North American Conference 2024 in Boston. She’s been hard at work in extrapolating the causes of neuropsychiatric long COVID, a tangled web of symptoms seen in patients with long COVID that range from cognitive dysfunction to headaches, neuropathy, mental health, and the aforementioned dysautonomia.

Amid the sea of neurologic long COVID symptoms, she said “symptoms that are mixing and matching are very similar. So, I wanted to specifically look at a symptom that I could definitely isolate to the brain, and that is brain fog and cognitive dysfunction and impairment.”

In September 2021, the journal Translational Psychiatry published a study titled “Neuropsychiatric manifestations of COVID-19, potential neurotropic mechanisms, and therapeutic interventions.”

Going back all the way to the first cases of COVID in March 2020, the initial symptoms most patients complained of during an acute viral infection were around the respiratory system. Yet delirium, confusion, and neurocognitive disorders were also reported, puzzling experts and inciting a well-founded fear among many.

Even worse, after recovery, these neuropsychiatric symptoms persisted. The study found that coronavirus was able to invade the central nervous system through blood vessels and neuronal retrograde pathways, leading to brain injury and dysfunction of the cardiorespiratory center in the brainstem.

The study concluded by reporting that neuroimaging and neurochemical evidence indicated neuroimmune dysfunction and brain injury in severe patients with COVID-19. Suggested treatments included immunosuppressive therapies, vaccines to target the coronavirus’ spike protein, and pharmacological agents to improve endothelial integrity.

But there was still much that was unknown, and the study’s authors stressed the need for multidisciplinary research going forward.
 

How Immune Dysfunction Plays a Role

Similarly, Dr. McAlpine and her research team are still trying to sift their way through this opaque web to see why long COVID can cause autoimmune flare-ups.

In a study published in April, Dr. McAlpine and others found that small fiber neuropathy (SFN) after COVID is autoimmune-mediated and a dysfunction of the immune system.

Notably, they found that SFN could be a key pathologic finding in long COVID. SFN before the pandemic had been linked to ME/CFS and POTS, and the basic hypothesis revolved around an inflammatory immune response during a viral illness that may lead to immune dysregulation (dysimmunity) and damage to small fiber nerves.

But much still remains to be answered.

“We’ve seen quite a bit of that, but we still haven’t figured it out,” Dr. McAlpine said. “My big question is, how is this autonomic dysfunction related to the immune dysfunction, and how is that related to the vascular inflammation? There’s quite a bit of overlap in individuals with autoimmune disease and those who go on to develop this long COVID,” she added.

Still, a large portion of patients with long COVID don’t show autoimmune dysfunction, and those patients lack common biomarkers for an autoimmune condition.

“When we look at the spinal fluid in those individuals [with multiple sclerosis or a neuroinfectious disease], there’s inflammation going on ... the white blood cell count is elevated, the protein is elevated, the antibodies, the bands are elevated. I’ve been seeing long COVID patients now for 4 years, and their presentation is so distinctly different compared to my individuals that I see my patients with MS, or a neuroinfectious disease,” she said.

The mechanisms behind how all of this is interlaced remain unclear, and there may not be a one-size-fits-all treatment or definite pathogenesis for everyone.

“It’s that intersection of the immune system and the vessel wall ... Next is to figure out what do we treat, what are the targets, all of that, but there’s so many different presentations, and everybody has kind of a unique case,” she said.
 

How Physician Can Treat Common Symptoms Now

Though a cure for symptoms still eludes the scientific community, recent evidence has suggested that a combination of N-acetyl cysteine (NAC) and guanfacine has been successful in easing neurologic symptoms.

In November 2023, Arman Fesharaki-Zadeh, MD, PhD, a Yale Medicine behavioral neurologist and neuropsychiatrist, published a small study in Neuroimmunology Reports with his colleague, Yale neuroscientist Amy Arnsten, PhD. The two researchers showed how among 12 patients given 600 mg NAC daily, along with 1 mg guanfacine (increased to 2 mg after a month if well-tolerated), eight demonstrated improved cognitive abilities.

In patients who stayed on guanfacine + NAC, improved working memory, concentration, and executive functions were seen.

Also, they resumed their normal work schedule. Interruption and inability to work has been a significant factor in the lower quality-of-life long COVID patients experience.

Placebo-controlled trials will be needed going forward, but their small study has established safety and could open up a larger study in the future. For the moment, NAC can be gotten over the counter, and patients could get a prescription off-label from their doctor.

Dr. McAlpine has seen this combination work well for her own patients at Yale’s NeuroCOVID clinic.

Additionally, lifestyle practices such as quitting tobacco, increased exercise, exercising the mind, lowering alcohol intake, and even vitamin D supplementation (1000-2000 IU daily) could prove beneficial in tamping down persistent brain fog.

Vitamin D supports brain and nerve function through its reduction of brain aging biomarkers, regulating genes important for brain function, activating and deactivating enzymes important for neurotransmitter synthesis, and supporting neuronal growth and survival.

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

Neurologic symptoms of long COVID are vast, common, hard to treat, disabling, and can mimic dozens of other syndromes, with some symptoms as serious as those seen in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and postural orthostatic tachycardia syndrome (POTS).

Now, recent evidence has suggested long COVID is primarily an autonomic nervous system disorder.

Patients with long COVID increasingly complain of extreme fatigue, brain fog, cognitive issues, dizziness, irregular heart rhythms, and high or low blood pressure, all features seen with dysautonomia — dysregulation of the autonomic nervous system.

Their lives may never be the same.

Lindsay S. McAlpine, MD, a specialist in the neurologic sequelae of COVID-19 at the Yale School of Medicine and director of the Yale NeuroCOVID Clinic, New Haven, Connecticut, treats patients who struggle with neurologic symptoms even after disease recovery.

“Some people have the brain fog and the shortness of breath; some have the palpitations and the headaches ... it’s kind of a mix and match,” she said.

Dr. McAlpine’s research has been slowly building up into what could bring about a significant breakthrough in treating some of the most misunderstood and difficult-to-treat symptoms of long COVID.
 

The Effect of Vascular Inflammation on Long COVID

The National Institute of Neurological Disorders and Stroke recently awarded her a 5-year K23 grant to support her ongoing study, “Magnetic Resonance Imaging Biomarkers of Post-COVID-19 Cerebral Microvascular Dysfunction.”

Using advanced MRI techniques to identify microvascular dysfunction biomarkers in the brain, McAlpine hopes to unearth and better understand the pathophysiology behind neurologic issues post-COVID.

Dr. McAlpine said, “What we’re seeing is that there’s a unique signature of vascular inflammation in long COVID that is distinct from acute COVID. And it has to do with endothelial apathy and platelet dysfunction.”

She’s also looking into whether microvascular dysfunction could increase one’s risk for small vessel disease. Her research is quantitatively building an overall pathophysiology piece by piece.

“We’re quantifying cognitive dysfunction and using objective testing ... a very rigorous 3-hour protocol to really identify the patterns of weakness until we find deficits in memory working and declarative memory, deficits in executive functioning, and others. Those are the three pieces that I’m trying to piece together: The MRI, the blood work, and the cognitive testing,” she said.

Ultimately, Dr. McAlpine believes long COVID will eventually be classified as a peripheral autonomic disorder. The damage being wrought to the whole body also damages the brain’s vasculature, and Dr. McAlpine’s MRI techniques probe at this connection.

“Some of my MRI techniques are dependent on the very subtle changes in blood flow to different regions in response to demand. Brain fog has been a key symptom of POTS and ME/CFS. And it’s now a key symptom of long COVID ... what I’m looking at in some of my studies is how and in which parts of the brain are affected by this,” she said.

Dr. McAlpine’s interest in COVID’s effect on our nervous system goes back all the way to the first wave of patients with COVID, where she noticed an unusually high incidence of ischemic stroke.

“We recognized that COVID really has a huge impact on the vessels ... there’s quite a bit of vascular inflammation. In terms of neurology, we were seeing quite a bit of ischemic stroke, which is unusual,” she said.

Patients don’t normally present with stroke while infected with a virus. Seeking answers, she conducted a stroke study in patients with acute COVID and found profound endotheliopathy — damage to key cells in the lining of blood vessels — leading to a cascade of dysfunction and clotting.
 

A Constellation of Neuropsychiatric Symptoms

In early June, Dr. McAlpine gave a presentation of her research at the Demystifying Long COVID North American Conference 2024 in Boston. She’s been hard at work in extrapolating the causes of neuropsychiatric long COVID, a tangled web of symptoms seen in patients with long COVID that range from cognitive dysfunction to headaches, neuropathy, mental health, and the aforementioned dysautonomia.

Amid the sea of neurologic long COVID symptoms, she said “symptoms that are mixing and matching are very similar. So, I wanted to specifically look at a symptom that I could definitely isolate to the brain, and that is brain fog and cognitive dysfunction and impairment.”

In September 2021, the journal Translational Psychiatry published a study titled “Neuropsychiatric manifestations of COVID-19, potential neurotropic mechanisms, and therapeutic interventions.”

Going back all the way to the first cases of COVID in March 2020, the initial symptoms most patients complained of during an acute viral infection were around the respiratory system. Yet delirium, confusion, and neurocognitive disorders were also reported, puzzling experts and inciting a well-founded fear among many.

Even worse, after recovery, these neuropsychiatric symptoms persisted. The study found that coronavirus was able to invade the central nervous system through blood vessels and neuronal retrograde pathways, leading to brain injury and dysfunction of the cardiorespiratory center in the brainstem.

The study concluded by reporting that neuroimaging and neurochemical evidence indicated neuroimmune dysfunction and brain injury in severe patients with COVID-19. Suggested treatments included immunosuppressive therapies, vaccines to target the coronavirus’ spike protein, and pharmacological agents to improve endothelial integrity.

But there was still much that was unknown, and the study’s authors stressed the need for multidisciplinary research going forward.
 

How Immune Dysfunction Plays a Role

Similarly, Dr. McAlpine and her research team are still trying to sift their way through this opaque web to see why long COVID can cause autoimmune flare-ups.

In a study published in April, Dr. McAlpine and others found that small fiber neuropathy (SFN) after COVID is autoimmune-mediated and a dysfunction of the immune system.

Notably, they found that SFN could be a key pathologic finding in long COVID. SFN before the pandemic had been linked to ME/CFS and POTS, and the basic hypothesis revolved around an inflammatory immune response during a viral illness that may lead to immune dysregulation (dysimmunity) and damage to small fiber nerves.

But much still remains to be answered.

“We’ve seen quite a bit of that, but we still haven’t figured it out,” Dr. McAlpine said. “My big question is, how is this autonomic dysfunction related to the immune dysfunction, and how is that related to the vascular inflammation? There’s quite a bit of overlap in individuals with autoimmune disease and those who go on to develop this long COVID,” she added.

Still, a large portion of patients with long COVID don’t show autoimmune dysfunction, and those patients lack common biomarkers for an autoimmune condition.

“When we look at the spinal fluid in those individuals [with multiple sclerosis or a neuroinfectious disease], there’s inflammation going on ... the white blood cell count is elevated, the protein is elevated, the antibodies, the bands are elevated. I’ve been seeing long COVID patients now for 4 years, and their presentation is so distinctly different compared to my individuals that I see my patients with MS, or a neuroinfectious disease,” she said.

The mechanisms behind how all of this is interlaced remain unclear, and there may not be a one-size-fits-all treatment or definite pathogenesis for everyone.

“It’s that intersection of the immune system and the vessel wall ... Next is to figure out what do we treat, what are the targets, all of that, but there’s so many different presentations, and everybody has kind of a unique case,” she said.
 

How Physician Can Treat Common Symptoms Now

Though a cure for symptoms still eludes the scientific community, recent evidence has suggested that a combination of N-acetyl cysteine (NAC) and guanfacine has been successful in easing neurologic symptoms.

In November 2023, Arman Fesharaki-Zadeh, MD, PhD, a Yale Medicine behavioral neurologist and neuropsychiatrist, published a small study in Neuroimmunology Reports with his colleague, Yale neuroscientist Amy Arnsten, PhD. The two researchers showed how among 12 patients given 600 mg NAC daily, along with 1 mg guanfacine (increased to 2 mg after a month if well-tolerated), eight demonstrated improved cognitive abilities.

In patients who stayed on guanfacine + NAC, improved working memory, concentration, and executive functions were seen.

Also, they resumed their normal work schedule. Interruption and inability to work has been a significant factor in the lower quality-of-life long COVID patients experience.

Placebo-controlled trials will be needed going forward, but their small study has established safety and could open up a larger study in the future. For the moment, NAC can be gotten over the counter, and patients could get a prescription off-label from their doctor.

Dr. McAlpine has seen this combination work well for her own patients at Yale’s NeuroCOVID clinic.

Additionally, lifestyle practices such as quitting tobacco, increased exercise, exercising the mind, lowering alcohol intake, and even vitamin D supplementation (1000-2000 IU daily) could prove beneficial in tamping down persistent brain fog.

Vitamin D supports brain and nerve function through its reduction of brain aging biomarkers, regulating genes important for brain function, activating and deactivating enzymes important for neurotransmitter synthesis, and supporting neuronal growth and survival.

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

Neurologic symptoms of long COVID are vast, common, hard to treat, disabling, and can mimic dozens of other syndromes, with some symptoms as serious as those seen in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and postural orthostatic tachycardia syndrome (POTS).

Now, recent evidence has suggested long COVID is primarily an autonomic nervous system disorder.

Patients with long COVID increasingly complain of extreme fatigue, brain fog, cognitive issues, dizziness, irregular heart rhythms, and high or low blood pressure, all features seen with dysautonomia — dysregulation of the autonomic nervous system.

Their lives may never be the same.

Lindsay S. McAlpine, MD, a specialist in the neurologic sequelae of COVID-19 at the Yale School of Medicine and director of the Yale NeuroCOVID Clinic, New Haven, Connecticut, treats patients who struggle with neurologic symptoms even after disease recovery.

“Some people have the brain fog and the shortness of breath; some have the palpitations and the headaches ... it’s kind of a mix and match,” she said.

Dr. McAlpine’s research has been slowly building up into what could bring about a significant breakthrough in treating some of the most misunderstood and difficult-to-treat symptoms of long COVID.
 

The Effect of Vascular Inflammation on Long COVID

The National Institute of Neurological Disorders and Stroke recently awarded her a 5-year K23 grant to support her ongoing study, “Magnetic Resonance Imaging Biomarkers of Post-COVID-19 Cerebral Microvascular Dysfunction.”

Using advanced MRI techniques to identify microvascular dysfunction biomarkers in the brain, McAlpine hopes to unearth and better understand the pathophysiology behind neurologic issues post-COVID.

Dr. McAlpine said, “What we’re seeing is that there’s a unique signature of vascular inflammation in long COVID that is distinct from acute COVID. And it has to do with endothelial apathy and platelet dysfunction.”

She’s also looking into whether microvascular dysfunction could increase one’s risk for small vessel disease. Her research is quantitatively building an overall pathophysiology piece by piece.

“We’re quantifying cognitive dysfunction and using objective testing ... a very rigorous 3-hour protocol to really identify the patterns of weakness until we find deficits in memory working and declarative memory, deficits in executive functioning, and others. Those are the three pieces that I’m trying to piece together: The MRI, the blood work, and the cognitive testing,” she said.

Ultimately, Dr. McAlpine believes long COVID will eventually be classified as a peripheral autonomic disorder. The damage being wrought to the whole body also damages the brain’s vasculature, and Dr. McAlpine’s MRI techniques probe at this connection.

“Some of my MRI techniques are dependent on the very subtle changes in blood flow to different regions in response to demand. Brain fog has been a key symptom of POTS and ME/CFS. And it’s now a key symptom of long COVID ... what I’m looking at in some of my studies is how and in which parts of the brain are affected by this,” she said.

Dr. McAlpine’s interest in COVID’s effect on our nervous system goes back all the way to the first wave of patients with COVID, where she noticed an unusually high incidence of ischemic stroke.

“We recognized that COVID really has a huge impact on the vessels ... there’s quite a bit of vascular inflammation. In terms of neurology, we were seeing quite a bit of ischemic stroke, which is unusual,” she said.

Patients don’t normally present with stroke while infected with a virus. Seeking answers, she conducted a stroke study in patients with acute COVID and found profound endotheliopathy — damage to key cells in the lining of blood vessels — leading to a cascade of dysfunction and clotting.
 

A Constellation of Neuropsychiatric Symptoms

In early June, Dr. McAlpine gave a presentation of her research at the Demystifying Long COVID North American Conference 2024 in Boston. She’s been hard at work in extrapolating the causes of neuropsychiatric long COVID, a tangled web of symptoms seen in patients with long COVID that range from cognitive dysfunction to headaches, neuropathy, mental health, and the aforementioned dysautonomia.

Amid the sea of neurologic long COVID symptoms, she said “symptoms that are mixing and matching are very similar. So, I wanted to specifically look at a symptom that I could definitely isolate to the brain, and that is brain fog and cognitive dysfunction and impairment.”

In September 2021, the journal Translational Psychiatry published a study titled “Neuropsychiatric manifestations of COVID-19, potential neurotropic mechanisms, and therapeutic interventions.”

Going back all the way to the first cases of COVID in March 2020, the initial symptoms most patients complained of during an acute viral infection were around the respiratory system. Yet delirium, confusion, and neurocognitive disorders were also reported, puzzling experts and inciting a well-founded fear among many.

Even worse, after recovery, these neuropsychiatric symptoms persisted. The study found that coronavirus was able to invade the central nervous system through blood vessels and neuronal retrograde pathways, leading to brain injury and dysfunction of the cardiorespiratory center in the brainstem.

The study concluded by reporting that neuroimaging and neurochemical evidence indicated neuroimmune dysfunction and brain injury in severe patients with COVID-19. Suggested treatments included immunosuppressive therapies, vaccines to target the coronavirus’ spike protein, and pharmacological agents to improve endothelial integrity.

But there was still much that was unknown, and the study’s authors stressed the need for multidisciplinary research going forward.
 

How Immune Dysfunction Plays a Role

Similarly, Dr. McAlpine and her research team are still trying to sift their way through this opaque web to see why long COVID can cause autoimmune flare-ups.

In a study published in April, Dr. McAlpine and others found that small fiber neuropathy (SFN) after COVID is autoimmune-mediated and a dysfunction of the immune system.

Notably, they found that SFN could be a key pathologic finding in long COVID. SFN before the pandemic had been linked to ME/CFS and POTS, and the basic hypothesis revolved around an inflammatory immune response during a viral illness that may lead to immune dysregulation (dysimmunity) and damage to small fiber nerves.

But much still remains to be answered.

“We’ve seen quite a bit of that, but we still haven’t figured it out,” Dr. McAlpine said. “My big question is, how is this autonomic dysfunction related to the immune dysfunction, and how is that related to the vascular inflammation? There’s quite a bit of overlap in individuals with autoimmune disease and those who go on to develop this long COVID,” she added.

Still, a large portion of patients with long COVID don’t show autoimmune dysfunction, and those patients lack common biomarkers for an autoimmune condition.

“When we look at the spinal fluid in those individuals [with multiple sclerosis or a neuroinfectious disease], there’s inflammation going on ... the white blood cell count is elevated, the protein is elevated, the antibodies, the bands are elevated. I’ve been seeing long COVID patients now for 4 years, and their presentation is so distinctly different compared to my individuals that I see my patients with MS, or a neuroinfectious disease,” she said.

The mechanisms behind how all of this is interlaced remain unclear, and there may not be a one-size-fits-all treatment or definite pathogenesis for everyone.

“It’s that intersection of the immune system and the vessel wall ... Next is to figure out what do we treat, what are the targets, all of that, but there’s so many different presentations, and everybody has kind of a unique case,” she said.
 

How Physician Can Treat Common Symptoms Now

Though a cure for symptoms still eludes the scientific community, recent evidence has suggested that a combination of N-acetyl cysteine (NAC) and guanfacine has been successful in easing neurologic symptoms.

In November 2023, Arman Fesharaki-Zadeh, MD, PhD, a Yale Medicine behavioral neurologist and neuropsychiatrist, published a small study in Neuroimmunology Reports with his colleague, Yale neuroscientist Amy Arnsten, PhD. The two researchers showed how among 12 patients given 600 mg NAC daily, along with 1 mg guanfacine (increased to 2 mg after a month if well-tolerated), eight demonstrated improved cognitive abilities.

In patients who stayed on guanfacine + NAC, improved working memory, concentration, and executive functions were seen.

Also, they resumed their normal work schedule. Interruption and inability to work has been a significant factor in the lower quality-of-life long COVID patients experience.

Placebo-controlled trials will be needed going forward, but their small study has established safety and could open up a larger study in the future. For the moment, NAC can be gotten over the counter, and patients could get a prescription off-label from their doctor.

Dr. McAlpine has seen this combination work well for her own patients at Yale’s NeuroCOVID clinic.

Additionally, lifestyle practices such as quitting tobacco, increased exercise, exercising the mind, lowering alcohol intake, and even vitamin D supplementation (1000-2000 IU daily) could prove beneficial in tamping down persistent brain fog.

Vitamin D supports brain and nerve function through its reduction of brain aging biomarkers, regulating genes important for brain function, activating and deactivating enzymes important for neurotransmitter synthesis, and supporting neuronal growth and survival.

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

TOPLINE:

A high-fiber diet affects small intestine metabolism, spurring release of the appetite-suppressing gut hormone peptide tyrosine tyrosine (PYY) more than a low-fiber diet, and it does so regardless of the food’s structure, new research revealed.

METHODOLOGY:

• Researchers investigated how low- and high-fiber diets affect the release of the gut hormones PYY and glucagon-like peptide 1 (GLP-1).
• They randomly assigned 10 healthy volunteers to 4 days on one of three diets: High-fiber intact foods, such as peas and carrots; high-fiber foods with disrupted structures (same high-fiber foods, but mashed or blended); or low-fiber processed foods. Volunteers then participated in the remaining two diets in a randomized order, with a washout period of at least a week in which they reverted to their normal diet between each session.
• The diets were energy- and macronutrient-matched, but only the two high-fiber diets were fiber-matched at 46.3-46.7 grams daily, whereas the low-fiber diet contained 12.6 grams of daily fiber.
• The researchers used nasoenteric tubes to sample chyme from the participants’ distal ileum lumina in a morning fasted state and every 60 minutes for 480 minutes postprandially on days 3 and 4 and confirmed their findings using ileal organoids. Participants reported their postprandial hunger using a visual analog scale.

TAKEAWAY:

• Both high-fiber diets increased PYY release — but not GLP-1 release — compared with a low-fiber diet during the 0-240-minute postprandial period, when the food was mainly in the small intestine.
• At 120 minutes, both high-fiber diets increased PYY compared with the low-fiber diet, a finding that counteracted the researchers’ hypothesis that intact food structures would stimulate PYY to a larger extent than disrupted food structures. Additionally, participants reported less hunger at 120 minutes with the high-fiber diets, compared with the low-fiber diet.
• High-fiber diets also increased ileal stachyose, and the disrupted high-fiber diet increased certain ileal amino acids.
• Treating the ileal organoids with ileal fluids or an amino acid and stachyose mixture stimulated PYY expression similarly to blood PYY expression, confirming the role of ileal metabolites in the release of PYY.

IN PRACTICE:

“High-fiber diets, regardless of their food structure, increased PYY release through alterations in the ileal metabolic profile,” the authors wrote. “Ileal molecules, which are shaped by dietary intake, were shown to play a role in PYY release, which could be used to design diets to promote satiety.”

SOURCE:

The study, led by Aygul Dagbasi, PhD, Imperial College London, England, was published online in Science Translational Medicine

LIMITATIONS:

The study had several limitations, including the small number of participants. The crossover design limited the influence of covariates on the study outcomes. Gastric emptying and gut transit rates differed widely; therefore, food that may have reached and affected the ileum prior to the first postprandial sample point at 60 minutes was not captured. The authors had access to a limited number of organoids, which restricted the number of experiments they could do. Although organoids are useful tools in vitro, they have limitations, the researchers noted.

DISCLOSURES:

The research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC), Nestle Research, and Sosei Heptares. The Section for Nutrition at Imperial College London is funded by grants from the UK Medical Research Council, BBSRC, National Institute for Health and Care Research, and UKRI Innovate UK and is supported by the National Institute for Health and Care Research Imperial Biomedical Research Centre Funding Scheme. The study was funded by UKRI BBSRC to the principal investigator. The lipid analysis was funded by a British Nutrition Foundation Drummond Early Career Scientist Award. The food microscopy studies were supported by the BBSRC Food Innovation and Health Institute Strategic Programme. Three coauthors disclose that they are directors of Melico Sciences, and several coauthors have relationships with industry outside of the submitted work.

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

TOPLINE:

A high-fiber diet affects small intestine metabolism, spurring release of the appetite-suppressing gut hormone peptide tyrosine tyrosine (PYY) more than a low-fiber diet, and it does so regardless of the food’s structure, new research revealed.

METHODOLOGY:

• Researchers investigated how low- and high-fiber diets affect the release of the gut hormones PYY and glucagon-like peptide 1 (GLP-1).
• They randomly assigned 10 healthy volunteers to 4 days on one of three diets: High-fiber intact foods, such as peas and carrots; high-fiber foods with disrupted structures (same high-fiber foods, but mashed or blended); or low-fiber processed foods. Volunteers then participated in the remaining two diets in a randomized order, with a washout period of at least a week in which they reverted to their normal diet between each session.
• The diets were energy- and macronutrient-matched, but only the two high-fiber diets were fiber-matched at 46.3-46.7 grams daily, whereas the low-fiber diet contained 12.6 grams of daily fiber.
• The researchers used nasoenteric tubes to sample chyme from the participants’ distal ileum lumina in a morning fasted state and every 60 minutes for 480 minutes postprandially on days 3 and 4 and confirmed their findings using ileal organoids. Participants reported their postprandial hunger using a visual analog scale.

TAKEAWAY:

• Both high-fiber diets increased PYY release — but not GLP-1 release — compared with a low-fiber diet during the 0-240-minute postprandial period, when the food was mainly in the small intestine.
• At 120 minutes, both high-fiber diets increased PYY compared with the low-fiber diet, a finding that counteracted the researchers’ hypothesis that intact food structures would stimulate PYY to a larger extent than disrupted food structures. Additionally, participants reported less hunger at 120 minutes with the high-fiber diets, compared with the low-fiber diet.
• High-fiber diets also increased ileal stachyose, and the disrupted high-fiber diet increased certain ileal amino acids.
• Treating the ileal organoids with ileal fluids or an amino acid and stachyose mixture stimulated PYY expression similarly to blood PYY expression, confirming the role of ileal metabolites in the release of PYY.

IN PRACTICE:

“High-fiber diets, regardless of their food structure, increased PYY release through alterations in the ileal metabolic profile,” the authors wrote. “Ileal molecules, which are shaped by dietary intake, were shown to play a role in PYY release, which could be used to design diets to promote satiety.”

SOURCE:

The study, led by Aygul Dagbasi, PhD, Imperial College London, England, was published online in Science Translational Medicine

LIMITATIONS:

The study had several limitations, including the small number of participants. The crossover design limited the influence of covariates on the study outcomes. Gastric emptying and gut transit rates differed widely; therefore, food that may have reached and affected the ileum prior to the first postprandial sample point at 60 minutes was not captured. The authors had access to a limited number of organoids, which restricted the number of experiments they could do. Although organoids are useful tools in vitro, they have limitations, the researchers noted.

DISCLOSURES:

The research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC), Nestle Research, and Sosei Heptares. The Section for Nutrition at Imperial College London is funded by grants from the UK Medical Research Council, BBSRC, National Institute for Health and Care Research, and UKRI Innovate UK and is supported by the National Institute for Health and Care Research Imperial Biomedical Research Centre Funding Scheme. The study was funded by UKRI BBSRC to the principal investigator. The lipid analysis was funded by a British Nutrition Foundation Drummond Early Career Scientist Award. The food microscopy studies were supported by the BBSRC Food Innovation and Health Institute Strategic Programme. Three coauthors disclose that they are directors of Melico Sciences, and several coauthors have relationships with industry outside of the submitted work.

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

TOPLINE:

A high-fiber diet affects small intestine metabolism, spurring release of the appetite-suppressing gut hormone peptide tyrosine tyrosine (PYY) more than a low-fiber diet, and it does so regardless of the food’s structure, new research revealed.

METHODOLOGY:

• Researchers investigated how low- and high-fiber diets affect the release of the gut hormones PYY and glucagon-like peptide 1 (GLP-1).
• They randomly assigned 10 healthy volunteers to 4 days on one of three diets: High-fiber intact foods, such as peas and carrots; high-fiber foods with disrupted structures (same high-fiber foods, but mashed or blended); or low-fiber processed foods. Volunteers then participated in the remaining two diets in a randomized order, with a washout period of at least a week in which they reverted to their normal diet between each session.
• The diets were energy- and macronutrient-matched, but only the two high-fiber diets were fiber-matched at 46.3-46.7 grams daily, whereas the low-fiber diet contained 12.6 grams of daily fiber.
• The researchers used nasoenteric tubes to sample chyme from the participants’ distal ileum lumina in a morning fasted state and every 60 minutes for 480 minutes postprandially on days 3 and 4 and confirmed their findings using ileal organoids. Participants reported their postprandial hunger using a visual analog scale.

TAKEAWAY:

• Both high-fiber diets increased PYY release — but not GLP-1 release — compared with a low-fiber diet during the 0-240-minute postprandial period, when the food was mainly in the small intestine.
• At 120 minutes, both high-fiber diets increased PYY compared with the low-fiber diet, a finding that counteracted the researchers’ hypothesis that intact food structures would stimulate PYY to a larger extent than disrupted food structures. Additionally, participants reported less hunger at 120 minutes with the high-fiber diets, compared with the low-fiber diet.
• High-fiber diets also increased ileal stachyose, and the disrupted high-fiber diet increased certain ileal amino acids.
• Treating the ileal organoids with ileal fluids or an amino acid and stachyose mixture stimulated PYY expression similarly to blood PYY expression, confirming the role of ileal metabolites in the release of PYY.

IN PRACTICE:

“High-fiber diets, regardless of their food structure, increased PYY release through alterations in the ileal metabolic profile,” the authors wrote. “Ileal molecules, which are shaped by dietary intake, were shown to play a role in PYY release, which could be used to design diets to promote satiety.”

SOURCE:

The study, led by Aygul Dagbasi, PhD, Imperial College London, England, was published online in Science Translational Medicine

LIMITATIONS:

The study had several limitations, including the small number of participants. The crossover design limited the influence of covariates on the study outcomes. Gastric emptying and gut transit rates differed widely; therefore, food that may have reached and affected the ileum prior to the first postprandial sample point at 60 minutes was not captured. The authors had access to a limited number of organoids, which restricted the number of experiments they could do. Although organoids are useful tools in vitro, they have limitations, the researchers noted.

DISCLOSURES:

The research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC), Nestle Research, and Sosei Heptares. The Section for Nutrition at Imperial College London is funded by grants from the UK Medical Research Council, BBSRC, National Institute for Health and Care Research, and UKRI Innovate UK and is supported by the National Institute for Health and Care Research Imperial Biomedical Research Centre Funding Scheme. The study was funded by UKRI BBSRC to the principal investigator. The lipid analysis was funded by a British Nutrition Foundation Drummond Early Career Scientist Award. The food microscopy studies were supported by the BBSRC Food Innovation and Health Institute Strategic Programme. Three coauthors disclose that they are directors of Melico Sciences, and several coauthors have relationships with industry outside of the submitted work.

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

An estimated two million people in England and Scotland were experiencing symptoms of long COVID as of March 2024, according to the Office for National Statistics. Of these, 1.5 million said the condition was adversely affecting their day-to-day activities.

As more research emerges about long COVID, some experts are noticing that its trigger factors, symptoms, and causative mechanisms overlap with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).

ME/CFS is characterized by severe fatigue that does not improve with rest, in addition to pain and cognitive problems. One in four patients are bed- or house-bound with severe forms of the condition, sometimes experiencing atypical seizures, and speech and swallowing difficulties.

Despite affecting around 250,000 people in the UK and around 2 million people in the European Union (EU), it is a relatively poorly funded disease research area. Increased research into long COVID is thus providing a much-needed boost to ME/CFS research.

“What we already know about the possible causation of ME/CFS is helping research into the causes of long COVID. At the same time, research into long COVID is opening up new avenues of research that may also be relevant to ME/CFS. It is becoming a two-way process,” Dr. Charles Shepherd, honorary medical adviser to the UK-based ME Association, told this news organization.

While funding remains an issue, promising research is currently underway in the UK to improve diagnosis, treatment, and understanding of the pathology of ME/CFS.
 

Viral Reactivation

Dr. David Newton is research director at ME Research UK. “Viral infection is commonly reported as a trigger for [ME/CFS, meaning that the disease] may be caused by reactivation of latent viruses, including human herpes viruses and enteroviruses,” he said.

Herpes viruses can lie dormant in their host’s immune system for long periods of time. They can be reactivated by factors including infections, stress, and a weakened immune system, and may cause temporary symptoms or persistent disease.

A 2021 pilot study found that people with ME/CFS have a higher concentration of human herpesvirus 6B (HHV-6B) DNA in their saliva, and that concentration correlates with symptom severity. HHV-6B is a common virus typically contracted during infancy and childhood.

A continuation of this research is now underway at Brunel University to improve understanding of HHV-6B’s role in the onset and progression of ME/CFS, and to support the development of diagnostic and prognostic markers, as well as therapeutics such as antiviral therapies.
 

Mitochondrial Dysfunction

Dr. Shepherd explained that there is now sound evidence demonstrating that biochemical abnormalities in ME/CFS affect how mitochondria produce energy after physical exertion. Research is thus underway to see if treating mitochondrial dysfunction improves ME/CFS symptoms.

A phase 2a placebo-controlled clinical trial from 2023 found that AXA1125, a drug that works by modulating energy metabolism, significantly improved symptoms of fatigue in patients with fatigue-dominant long COVID, although it did not improve mitochondrial respiration.

“[The findings suggest] that improving mitochondrial health may be one way to restore normal functioning among people with long COVID, and by extension CFS,” study author Betty Raman, associate professor of cardiovascular medicine at the University of Oxford, told this news organization. She noted, however, that plans for a phase III trial have stalled due to insufficient funding.

Meanwhile, researchers from the Quadram Institute in Norwich and the University of East Anglia are conducting a pilot study to see if red light therapy can relieve symptoms of ME/CFS. Red light can be absorbed by mitochondria and is used to boost energy production. The trial will monitor patients remotely from their homes and will assess cognitive function and physical activity levels.
 

Gut Dysbiosis

Many studies have found that people with ME/CFS have altered gut microbiota, which suggests that changes in gut bacteria may contribute to the condition. Researchers at the Quadram Institute will thus conduct a clinical trial called RESTORE-ME to see whether fecal microbiota transplants (FMT) can treat the condition.

Rik Haagmans is a research scientist and PhD candidate at the Quadram Institute. He told this news organization: “Our FMT studies, if effective, could provide a longer lasting or even permanent relief of ME/CFS, as restoring the gut microbial composition wouldn’t require continuous medication,” he said.
 

Biobank and Biomarkers

Europe’s first ME/CFS-specific biobank is in the UK and is called UKMEB. It now has more than 30,000 blood samples from patients with ME/CFS, multiple sclerosis, and healthy controls. Uniquely, it includes samples from people with ME/CFS who are house- and bed-bound. Caroline Kingdon, RN, MSc, a research fellow and biobank lead at the London School of Hygiene and Tropical Medicine, told this news organization that samples and data from the UKMEB have been provided to research groups all over the world and have contributed to widely cited literature.

One group making use of these samples is led by Fatima Labeed, PhD, senior lecturer in human biology at the University of Surrey. Dr. Labeed and her team are developing a diagnostic test for ME/CFS based on electrical properties in white blood cells.

“To date, studies of ME/CFS have focused on the biochemical behavior of cells: the amount and type of proteins that cells use. We have taken a different approach, studying the electrical properties,” she explained to this news organization.

Her research builds on initial observations from 2019 that found differences in the electrical impedance of white blood cells between people with ME/CFS and controls. While the biological implications remain unknown, the findings may represent a biomarker for the condition.

Using blood samples from the UKMEB, the researchers are now investigating this potential biomarker with improved techniques and a larger patient cohort, including those with mild/moderate and severe forms of ME/CFS. So far, they have received more than 100 blood samples and have analyzed the electrical properties of 42.

“Based on the results we have so far, we are very close to having a biomarker for diagnosis. Our results so far show a high degree of accuracy and are able to distinguish between ME/CFS and other diseases,” said Dr. Labeed.
 

Genetic Test

Another promising avenue for diagnostics comes from a research team at the University of Edinburgh led by Professor Chris Ponting at the university’s Institute of Genetics and Cancer. They are currently working on DecodeMe, a large genetic study of ME using data from more than 26,000 people.

“We are studying blood-based biomarkers that distinguish people with ME from population controls. We’ve found a large number — including some found previously in other studies — and are writing these results up for publication,” said Ponting. The results should be published in early 2025.
 

The Future

While research into ME/CFS has picked up pace in recent years, funding remains a key bottleneck.

“Over the last 10 years, only £8.05m has been spent on ME research,” Sonya Chowdhury, chief executive of UK charity Action for ME told this news organization. She believes this amount is not equitably comparable to research funding allocated to other diseases.

In 2022, the UK government announced its intention to develop a cross-government interim delivery plan on ME/CFS for England, however publication of the final plan has been delayed numerous times.

Dr. Shepherd agreed that increased funding is crucial for progress to be made. He said the biggest help to ME/CFS research would be to end the disparity in government research funding for the disease, and match what is given for many other disabling long-term conditions.

“It’s not fair to continue to rely on the charity sector to fund almost all of the biomedical research into ME/CFS here in the UK,” he said.

A version of this article appeared on Medscape.com.

An estimated two million people in England and Scotland were experiencing symptoms of long COVID as of March 2024, according to the Office for National Statistics. Of these, 1.5 million said the condition was adversely affecting their day-to-day activities.

As more research emerges about long COVID, some experts are noticing that its trigger factors, symptoms, and causative mechanisms overlap with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).

ME/CFS is characterized by severe fatigue that does not improve with rest, in addition to pain and cognitive problems. One in four patients are bed- or house-bound with severe forms of the condition, sometimes experiencing atypical seizures, and speech and swallowing difficulties.

Despite affecting around 250,000 people in the UK and around 2 million people in the European Union (EU), it is a relatively poorly funded disease research area. Increased research into long COVID is thus providing a much-needed boost to ME/CFS research.

“What we already know about the possible causation of ME/CFS is helping research into the causes of long COVID. At the same time, research into long COVID is opening up new avenues of research that may also be relevant to ME/CFS. It is becoming a two-way process,” Dr. Charles Shepherd, honorary medical adviser to the UK-based ME Association, told this news organization.

While funding remains an issue, promising research is currently underway in the UK to improve diagnosis, treatment, and understanding of the pathology of ME/CFS.
 

Viral Reactivation

Dr. David Newton is research director at ME Research UK. “Viral infection is commonly reported as a trigger for [ME/CFS, meaning that the disease] may be caused by reactivation of latent viruses, including human herpes viruses and enteroviruses,” he said.

Herpes viruses can lie dormant in their host’s immune system for long periods of time. They can be reactivated by factors including infections, stress, and a weakened immune system, and may cause temporary symptoms or persistent disease.

A 2021 pilot study found that people with ME/CFS have a higher concentration of human herpesvirus 6B (HHV-6B) DNA in their saliva, and that concentration correlates with symptom severity. HHV-6B is a common virus typically contracted during infancy and childhood.

A continuation of this research is now underway at Brunel University to improve understanding of HHV-6B’s role in the onset and progression of ME/CFS, and to support the development of diagnostic and prognostic markers, as well as therapeutics such as antiviral therapies.
 

Mitochondrial Dysfunction

Dr. Shepherd explained that there is now sound evidence demonstrating that biochemical abnormalities in ME/CFS affect how mitochondria produce energy after physical exertion. Research is thus underway to see if treating mitochondrial dysfunction improves ME/CFS symptoms.

A phase 2a placebo-controlled clinical trial from 2023 found that AXA1125, a drug that works by modulating energy metabolism, significantly improved symptoms of fatigue in patients with fatigue-dominant long COVID, although it did not improve mitochondrial respiration.

“[The findings suggest] that improving mitochondrial health may be one way to restore normal functioning among people with long COVID, and by extension CFS,” study author Betty Raman, associate professor of cardiovascular medicine at the University of Oxford, told this news organization. She noted, however, that plans for a phase III trial have stalled due to insufficient funding.

Meanwhile, researchers from the Quadram Institute in Norwich and the University of East Anglia are conducting a pilot study to see if red light therapy can relieve symptoms of ME/CFS. Red light can be absorbed by mitochondria and is used to boost energy production. The trial will monitor patients remotely from their homes and will assess cognitive function and physical activity levels.
 

Gut Dysbiosis

Many studies have found that people with ME/CFS have altered gut microbiota, which suggests that changes in gut bacteria may contribute to the condition. Researchers at the Quadram Institute will thus conduct a clinical trial called RESTORE-ME to see whether fecal microbiota transplants (FMT) can treat the condition.

Rik Haagmans is a research scientist and PhD candidate at the Quadram Institute. He told this news organization: “Our FMT studies, if effective, could provide a longer lasting or even permanent relief of ME/CFS, as restoring the gut microbial composition wouldn’t require continuous medication,” he said.
 

Biobank and Biomarkers

Europe’s first ME/CFS-specific biobank is in the UK and is called UKMEB. It now has more than 30,000 blood samples from patients with ME/CFS, multiple sclerosis, and healthy controls. Uniquely, it includes samples from people with ME/CFS who are house- and bed-bound. Caroline Kingdon, RN, MSc, a research fellow and biobank lead at the London School of Hygiene and Tropical Medicine, told this news organization that samples and data from the UKMEB have been provided to research groups all over the world and have contributed to widely cited literature.

One group making use of these samples is led by Fatima Labeed, PhD, senior lecturer in human biology at the University of Surrey. Dr. Labeed and her team are developing a diagnostic test for ME/CFS based on electrical properties in white blood cells.

“To date, studies of ME/CFS have focused on the biochemical behavior of cells: the amount and type of proteins that cells use. We have taken a different approach, studying the electrical properties,” she explained to this news organization.

Her research builds on initial observations from 2019 that found differences in the electrical impedance of white blood cells between people with ME/CFS and controls. While the biological implications remain unknown, the findings may represent a biomarker for the condition.

Using blood samples from the UKMEB, the researchers are now investigating this potential biomarker with improved techniques and a larger patient cohort, including those with mild/moderate and severe forms of ME/CFS. So far, they have received more than 100 blood samples and have analyzed the electrical properties of 42.

“Based on the results we have so far, we are very close to having a biomarker for diagnosis. Our results so far show a high degree of accuracy and are able to distinguish between ME/CFS and other diseases,” said Dr. Labeed.
 

Genetic Test

Another promising avenue for diagnostics comes from a research team at the University of Edinburgh led by Professor Chris Ponting at the university’s Institute of Genetics and Cancer. They are currently working on DecodeMe, a large genetic study of ME using data from more than 26,000 people.

“We are studying blood-based biomarkers that distinguish people with ME from population controls. We’ve found a large number — including some found previously in other studies — and are writing these results up for publication,” said Ponting. The results should be published in early 2025.
 

The Future

While research into ME/CFS has picked up pace in recent years, funding remains a key bottleneck.

“Over the last 10 years, only £8.05m has been spent on ME research,” Sonya Chowdhury, chief executive of UK charity Action for ME told this news organization. She believes this amount is not equitably comparable to research funding allocated to other diseases.

In 2022, the UK government announced its intention to develop a cross-government interim delivery plan on ME/CFS for England, however publication of the final plan has been delayed numerous times.

Dr. Shepherd agreed that increased funding is crucial for progress to be made. He said the biggest help to ME/CFS research would be to end the disparity in government research funding for the disease, and match what is given for many other disabling long-term conditions.

“It’s not fair to continue to rely on the charity sector to fund almost all of the biomedical research into ME/CFS here in the UK,” he said.

A version of this article appeared on Medscape.com.

An estimated two million people in England and Scotland were experiencing symptoms of long COVID as of March 2024, according to the Office for National Statistics. Of these, 1.5 million said the condition was adversely affecting their day-to-day activities.

As more research emerges about long COVID, some experts are noticing that its trigger factors, symptoms, and causative mechanisms overlap with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS).

ME/CFS is characterized by severe fatigue that does not improve with rest, in addition to pain and cognitive problems. One in four patients are bed- or house-bound with severe forms of the condition, sometimes experiencing atypical seizures, and speech and swallowing difficulties.

Despite affecting around 250,000 people in the UK and around 2 million people in the European Union (EU), it is a relatively poorly funded disease research area. Increased research into long COVID is thus providing a much-needed boost to ME/CFS research.

“What we already know about the possible causation of ME/CFS is helping research into the causes of long COVID. At the same time, research into long COVID is opening up new avenues of research that may also be relevant to ME/CFS. It is becoming a two-way process,” Dr. Charles Shepherd, honorary medical adviser to the UK-based ME Association, told this news organization.

While funding remains an issue, promising research is currently underway in the UK to improve diagnosis, treatment, and understanding of the pathology of ME/CFS.
 

Viral Reactivation

Dr. David Newton is research director at ME Research UK. “Viral infection is commonly reported as a trigger for [ME/CFS, meaning that the disease] may be caused by reactivation of latent viruses, including human herpes viruses and enteroviruses,” he said.

Herpes viruses can lie dormant in their host’s immune system for long periods of time. They can be reactivated by factors including infections, stress, and a weakened immune system, and may cause temporary symptoms or persistent disease.

A 2021 pilot study found that people with ME/CFS have a higher concentration of human herpesvirus 6B (HHV-6B) DNA in their saliva, and that concentration correlates with symptom severity. HHV-6B is a common virus typically contracted during infancy and childhood.

A continuation of this research is now underway at Brunel University to improve understanding of HHV-6B’s role in the onset and progression of ME/CFS, and to support the development of diagnostic and prognostic markers, as well as therapeutics such as antiviral therapies.
 

Mitochondrial Dysfunction

Dr. Shepherd explained that there is now sound evidence demonstrating that biochemical abnormalities in ME/CFS affect how mitochondria produce energy after physical exertion. Research is thus underway to see if treating mitochondrial dysfunction improves ME/CFS symptoms.

A phase 2a placebo-controlled clinical trial from 2023 found that AXA1125, a drug that works by modulating energy metabolism, significantly improved symptoms of fatigue in patients with fatigue-dominant long COVID, although it did not improve mitochondrial respiration.

“[The findings suggest] that improving mitochondrial health may be one way to restore normal functioning among people with long COVID, and by extension CFS,” study author Betty Raman, associate professor of cardiovascular medicine at the University of Oxford, told this news organization. She noted, however, that plans for a phase III trial have stalled due to insufficient funding.

Meanwhile, researchers from the Quadram Institute in Norwich and the University of East Anglia are conducting a pilot study to see if red light therapy can relieve symptoms of ME/CFS. Red light can be absorbed by mitochondria and is used to boost energy production. The trial will monitor patients remotely from their homes and will assess cognitive function and physical activity levels.
 

Gut Dysbiosis

Many studies have found that people with ME/CFS have altered gut microbiota, which suggests that changes in gut bacteria may contribute to the condition. Researchers at the Quadram Institute will thus conduct a clinical trial called RESTORE-ME to see whether fecal microbiota transplants (FMT) can treat the condition.

Rik Haagmans is a research scientist and PhD candidate at the Quadram Institute. He told this news organization: “Our FMT studies, if effective, could provide a longer lasting or even permanent relief of ME/CFS, as restoring the gut microbial composition wouldn’t require continuous medication,” he said.
 

Biobank and Biomarkers

Europe’s first ME/CFS-specific biobank is in the UK and is called UKMEB. It now has more than 30,000 blood samples from patients with ME/CFS, multiple sclerosis, and healthy controls. Uniquely, it includes samples from people with ME/CFS who are house- and bed-bound. Caroline Kingdon, RN, MSc, a research fellow and biobank lead at the London School of Hygiene and Tropical Medicine, told this news organization that samples and data from the UKMEB have been provided to research groups all over the world and have contributed to widely cited literature.

One group making use of these samples is led by Fatima Labeed, PhD, senior lecturer in human biology at the University of Surrey. Dr. Labeed and her team are developing a diagnostic test for ME/CFS based on electrical properties in white blood cells.

“To date, studies of ME/CFS have focused on the biochemical behavior of cells: the amount and type of proteins that cells use. We have taken a different approach, studying the electrical properties,” she explained to this news organization.

Her research builds on initial observations from 2019 that found differences in the electrical impedance of white blood cells between people with ME/CFS and controls. While the biological implications remain unknown, the findings may represent a biomarker for the condition.

Using blood samples from the UKMEB, the researchers are now investigating this potential biomarker with improved techniques and a larger patient cohort, including those with mild/moderate and severe forms of ME/CFS. So far, they have received more than 100 blood samples and have analyzed the electrical properties of 42.

“Based on the results we have so far, we are very close to having a biomarker for diagnosis. Our results so far show a high degree of accuracy and are able to distinguish between ME/CFS and other diseases,” said Dr. Labeed.
 

Genetic Test

Another promising avenue for diagnostics comes from a research team at the University of Edinburgh led by Professor Chris Ponting at the university’s Institute of Genetics and Cancer. They are currently working on DecodeMe, a large genetic study of ME using data from more than 26,000 people.

“We are studying blood-based biomarkers that distinguish people with ME from population controls. We’ve found a large number — including some found previously in other studies — and are writing these results up for publication,” said Ponting. The results should be published in early 2025.
 

The Future

While research into ME/CFS has picked up pace in recent years, funding remains a key bottleneck.

“Over the last 10 years, only £8.05m has been spent on ME research,” Sonya Chowdhury, chief executive of UK charity Action for ME told this news organization. She believes this amount is not equitably comparable to research funding allocated to other diseases.

In 2022, the UK government announced its intention to develop a cross-government interim delivery plan on ME/CFS for England, however publication of the final plan has been delayed numerous times.

Dr. Shepherd agreed that increased funding is crucial for progress to be made. He said the biggest help to ME/CFS research would be to end the disparity in government research funding for the disease, and match what is given for many other disabling long-term conditions.

“It’s not fair to continue to rely on the charity sector to fund almost all of the biomedical research into ME/CFS here in the UK,” he said.

A version of this article appeared on Medscape.com.

TOPLINE:

Long-term gender-affirming hormone treatment with testosterone increases the risk for metabolic syndromes in transmasculine individuals, whereas transfeminine individuals receiving estradiol have a lower risk.

METHODOLOGY:

• Many transgender individuals receive exogenous sex hormone therapy to reduce gender dysphoria and improve quality of life. These treatments, however, may influence the development of metabolic syndrome.
• This retrospective, longitudinal cohort study investigated the association between gender-affirming hormone treatment and metabolic syndrome scores in transfeminine and transmasculine individuals compared with cisgender men and women not receiving the treatment.
• Overall, 645 transgender participants (mean age at index date, 41.3 years; 494 transfeminine and 151 transmasculine) were matched with 645 cisgender participants (280 women and 365 men) from the Veterans Health Administration.
• Metabolic syndrome scores were calculated based on blood pressure; body mass index (BMI); and levels of high-density lipoprotein (HDL) cholesterol, triglycerides, and blood glucose.
• Changes in metabolic syndrome scores before and after hormonal transition were compared among transgender and cisgender individuals for the corresponding dates.

TAKEAWAY:

• After hormonal transition, all measured metabolic syndrome components significantly worsened in the transmasculine group (P < .05 for all).
• In contrast, the systolic blood pressure and triglyceride levels decreased, HDL cholesterol levels increased, and BMI showed no significant change in the transfeminine group after hormonal transition.
• The increase in metabolic syndrome scores after vs before the date of hormonal transition was the highest for transmasculine individuals (298.0%; P < .001), followed by cisgender women (108.3%; P < .001), cisgender men (49.3%; P = .02), and transfeminine individuals (3.0%; P = .77).

IN PRACTICE:

“This is relevant for the management of metabolic syndrome risk factors in cisgender and transgender individuals and to potentially predict the risk of atherosclerotic cardiovascular disease, type 2 diabetes, systolic hypertension, insulin resistance, and nonalcoholic fatty liver disease,” the authors wrote.

SOURCE:

Leila Hashemi, MD, MS, of the Department of General Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, led this study, which was published online in JAMA Network Open.

LIMITATIONS:

Causal inferences could not be drawn because of the study’s observational nature. The transmasculine and cisgender female groups were limited in size, and military veterans have special circumstances not representative of the general population. Minority stress among the transgender veterans was also not considered, which may have affected the health and well-being outcomes.

DISCLOSURES:

This study was supported by the National Institutes of Health and Office of Research on Women’s Health grants. One author received grants from the National Institutes of Health.

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

TOPLINE:

Long-term gender-affirming hormone treatment with testosterone increases the risk for metabolic syndromes in transmasculine individuals, whereas transfeminine individuals receiving estradiol have a lower risk.

METHODOLOGY:

• Many transgender individuals receive exogenous sex hormone therapy to reduce gender dysphoria and improve quality of life. These treatments, however, may influence the development of metabolic syndrome.
• This retrospective, longitudinal cohort study investigated the association between gender-affirming hormone treatment and metabolic syndrome scores in transfeminine and transmasculine individuals compared with cisgender men and women not receiving the treatment.
• Overall, 645 transgender participants (mean age at index date, 41.3 years; 494 transfeminine and 151 transmasculine) were matched with 645 cisgender participants (280 women and 365 men) from the Veterans Health Administration.
• Metabolic syndrome scores were calculated based on blood pressure; body mass index (BMI); and levels of high-density lipoprotein (HDL) cholesterol, triglycerides, and blood glucose.
• Changes in metabolic syndrome scores before and after hormonal transition were compared among transgender and cisgender individuals for the corresponding dates.

TAKEAWAY:

• After hormonal transition, all measured metabolic syndrome components significantly worsened in the transmasculine group (P < .05 for all).
• In contrast, the systolic blood pressure and triglyceride levels decreased, HDL cholesterol levels increased, and BMI showed no significant change in the transfeminine group after hormonal transition.
• The increase in metabolic syndrome scores after vs before the date of hormonal transition was the highest for transmasculine individuals (298.0%; P < .001), followed by cisgender women (108.3%; P < .001), cisgender men (49.3%; P = .02), and transfeminine individuals (3.0%; P = .77).

IN PRACTICE:

“This is relevant for the management of metabolic syndrome risk factors in cisgender and transgender individuals and to potentially predict the risk of atherosclerotic cardiovascular disease, type 2 diabetes, systolic hypertension, insulin resistance, and nonalcoholic fatty liver disease,” the authors wrote.

SOURCE:

Leila Hashemi, MD, MS, of the Department of General Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, led this study, which was published online in JAMA Network Open.

LIMITATIONS:

Causal inferences could not be drawn because of the study’s observational nature. The transmasculine and cisgender female groups were limited in size, and military veterans have special circumstances not representative of the general population. Minority stress among the transgender veterans was also not considered, which may have affected the health and well-being outcomes.

DISCLOSURES:

This study was supported by the National Institutes of Health and Office of Research on Women’s Health grants. One author received grants from the National Institutes of Health.

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

TOPLINE:

Long-term gender-affirming hormone treatment with testosterone increases the risk for metabolic syndromes in transmasculine individuals, whereas transfeminine individuals receiving estradiol have a lower risk.

METHODOLOGY:

• Many transgender individuals receive exogenous sex hormone therapy to reduce gender dysphoria and improve quality of life. These treatments, however, may influence the development of metabolic syndrome.
• This retrospective, longitudinal cohort study investigated the association between gender-affirming hormone treatment and metabolic syndrome scores in transfeminine and transmasculine individuals compared with cisgender men and women not receiving the treatment.
• Overall, 645 transgender participants (mean age at index date, 41.3 years; 494 transfeminine and 151 transmasculine) were matched with 645 cisgender participants (280 women and 365 men) from the Veterans Health Administration.
• Metabolic syndrome scores were calculated based on blood pressure; body mass index (BMI); and levels of high-density lipoprotein (HDL) cholesterol, triglycerides, and blood glucose.
• Changes in metabolic syndrome scores before and after hormonal transition were compared among transgender and cisgender individuals for the corresponding dates.

TAKEAWAY:

• After hormonal transition, all measured metabolic syndrome components significantly worsened in the transmasculine group (P < .05 for all).
• In contrast, the systolic blood pressure and triglyceride levels decreased, HDL cholesterol levels increased, and BMI showed no significant change in the transfeminine group after hormonal transition.
• The increase in metabolic syndrome scores after vs before the date of hormonal transition was the highest for transmasculine individuals (298.0%; P < .001), followed by cisgender women (108.3%; P < .001), cisgender men (49.3%; P = .02), and transfeminine individuals (3.0%; P = .77).

IN PRACTICE:

“This is relevant for the management of metabolic syndrome risk factors in cisgender and transgender individuals and to potentially predict the risk of atherosclerotic cardiovascular disease, type 2 diabetes, systolic hypertension, insulin resistance, and nonalcoholic fatty liver disease,” the authors wrote.

SOURCE:

Leila Hashemi, MD, MS, of the Department of General Internal Medicine, David Geffen School of Medicine, University of California, Los Angeles, led this study, which was published online in JAMA Network Open.

LIMITATIONS:

Causal inferences could not be drawn because of the study’s observational nature. The transmasculine and cisgender female groups were limited in size, and military veterans have special circumstances not representative of the general population. Minority stress among the transgender veterans was also not considered, which may have affected the health and well-being outcomes.

DISCLOSURES:

This study was supported by the National Institutes of Health and Office of Research on Women’s Health grants. One author received grants from the National Institutes of Health.

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

Patients starting first-line endocrine and CDK4/6 inhibition for advanced breast cancer show minimal additional cognitive decline beyond what they had already experienced from their neoadjuvant and adjuvant treatments, according to new results of the SONIA trial.

“Patients who are diagnosed with advanced breast cancer and start their first-line treatment already show cognitive impairments due to their previous treatments. And luckily, our results show that during first-line treatment for advanced breast cancer with endocrine therapy, with or without a CDK4/6 inhibitor, further cognitive decline is minimal,” lead investigator Maryse Luijendijk, said during her presentation at the annual meeting of the American Society of Clinical Oncology (ASCO).

“It is well known that cancer patients can experience cognitive problems, such as memory loss, problems with concentration or with planning, during or following their treatment,” explained Ms. Luijendijk, a PhD candidate in the department of Psychosocial Research and Epidemiology at the Netherlands Cancer Institute, in Amsterdam. “Much is known about the effects of chemotherapy or irradiation to the brain, but evidence into endocrine therapy is scarce, which is surprising because cognitive effects are biologically plausible.

“We know that estrogen plays an important role in neuronal functioning and that certain types of endocrine therapies are able to cross the blood-brain barrier, where they may interact with estrogen receptors distributed widely throughout the brain … We know that CDK4/6 inhibitors may either negatively affect cognitive function by increased fatigue due to cytokine release or by interrupting the cell cycle of healthy cells, or positively, as they have been associated with reduced inflammation and remyelination.”

Initial results of the SONIA trial, reported at ASCO last year, examined overall and progression-free survival in patients with HR-positive, HER2-negative metastatic breast cancer and no prior treatment for advanced disease. Findings for those who were randomized to treatment with nonsteroidal aromatase inhibition either with or without the addition of CDK4/6 inhibitors showed no between-group differences, explained Ms. Luijendijk.

The new results, described as being from the SONIA-EfFECT (Evaluation of cognitive functioning in patients with metastatic breast cancer treated with endocrine or combined therapy) trial, were based on the authors investigating cognitive functioning in the same cohort used in the SONIA trial plus a control group.

In SONIA-EfFECT, patients who participated in SONIA were asked to identify a female relative or friend without cancer to serve as a cancer-free control. Members of the 130-patient control group were matched for age, education, and computer use.

Participants in the SONIA trial and control group were asked to complete the Amsterdam Cognition Scan, an online neuropsychological test battery at baseline and again after 9 months of treatment. Of those patients from SONIA, 130 had received first-line treatment with aromatase inhibitors with CDK4/6 inhibition (Arm A) and 130 had received aromatase inhibitors without CDK4/6 inhibition (Arm B).

Baseline assessments for SONIA-EfFECT were completed for 260 patients from SONIA and the full 130-person control group. Follow-up assessments were completed for 119 members of the control group and 199 patients from the original SONIA trial (108 from Arm A, and 91 from Arm B). Patients from SONIA who switched to second-line treatment within 9 months were not retested.

Patients in both SONIA arms performed significantly worse than the controls on the domains of verbal memory, working memory, processing speed, executive function, and motor function. In both patient arms and the controls, standardized regression-based change scores showed limited decline in cognitive function over the 9-month interval. Minimal differences in cognitive change were observed between the patients treated with and without CDK4/6 inhibitors, and between patients and the controls, according to the abstract for SONIA-EfFECT, published in the program for the annual meeting of ASCO.

“At baseline, patients show worse cognitive function across all domains compared to the controls. And as expected, there were no differences between the two treatment arms,” Ms. Luijendijk explained. After 9 months of treatment, the testing showed limited further decline among patients, “and even some improvement on some tests,” with minimal differences between treatment arms “implying that cognitive function does not need to be an aspect when deciding on treatment.”

Ms. Luijendijk reported no relevant disclosures.

Patients starting first-line endocrine and CDK4/6 inhibition for advanced breast cancer show minimal additional cognitive decline beyond what they had already experienced from their neoadjuvant and adjuvant treatments, according to new results of the SONIA trial.

“Patients who are diagnosed with advanced breast cancer and start their first-line treatment already show cognitive impairments due to their previous treatments. And luckily, our results show that during first-line treatment for advanced breast cancer with endocrine therapy, with or without a CDK4/6 inhibitor, further cognitive decline is minimal,” lead investigator Maryse Luijendijk, said during her presentation at the annual meeting of the American Society of Clinical Oncology (ASCO).

“It is well known that cancer patients can experience cognitive problems, such as memory loss, problems with concentration or with planning, during or following their treatment,” explained Ms. Luijendijk, a PhD candidate in the department of Psychosocial Research and Epidemiology at the Netherlands Cancer Institute, in Amsterdam. “Much is known about the effects of chemotherapy or irradiation to the brain, but evidence into endocrine therapy is scarce, which is surprising because cognitive effects are biologically plausible.

“We know that estrogen plays an important role in neuronal functioning and that certain types of endocrine therapies are able to cross the blood-brain barrier, where they may interact with estrogen receptors distributed widely throughout the brain … We know that CDK4/6 inhibitors may either negatively affect cognitive function by increased fatigue due to cytokine release or by interrupting the cell cycle of healthy cells, or positively, as they have been associated with reduced inflammation and remyelination.”

Initial results of the SONIA trial, reported at ASCO last year, examined overall and progression-free survival in patients with HR-positive, HER2-negative metastatic breast cancer and no prior treatment for advanced disease. Findings for those who were randomized to treatment with nonsteroidal aromatase inhibition either with or without the addition of CDK4/6 inhibitors showed no between-group differences, explained Ms. Luijendijk.

The new results, described as being from the SONIA-EfFECT (Evaluation of cognitive functioning in patients with metastatic breast cancer treated with endocrine or combined therapy) trial, were based on the authors investigating cognitive functioning in the same cohort used in the SONIA trial plus a control group.

In SONIA-EfFECT, patients who participated in SONIA were asked to identify a female relative or friend without cancer to serve as a cancer-free control. Members of the 130-patient control group were matched for age, education, and computer use.

Participants in the SONIA trial and control group were asked to complete the Amsterdam Cognition Scan, an online neuropsychological test battery at baseline and again after 9 months of treatment. Of those patients from SONIA, 130 had received first-line treatment with aromatase inhibitors with CDK4/6 inhibition (Arm A) and 130 had received aromatase inhibitors without CDK4/6 inhibition (Arm B).

Baseline assessments for SONIA-EfFECT were completed for 260 patients from SONIA and the full 130-person control group. Follow-up assessments were completed for 119 members of the control group and 199 patients from the original SONIA trial (108 from Arm A, and 91 from Arm B). Patients from SONIA who switched to second-line treatment within 9 months were not retested.

Patients in both SONIA arms performed significantly worse than the controls on the domains of verbal memory, working memory, processing speed, executive function, and motor function. In both patient arms and the controls, standardized regression-based change scores showed limited decline in cognitive function over the 9-month interval. Minimal differences in cognitive change were observed between the patients treated with and without CDK4/6 inhibitors, and between patients and the controls, according to the abstract for SONIA-EfFECT, published in the program for the annual meeting of ASCO.

“At baseline, patients show worse cognitive function across all domains compared to the controls. And as expected, there were no differences between the two treatment arms,” Ms. Luijendijk explained. After 9 months of treatment, the testing showed limited further decline among patients, “and even some improvement on some tests,” with minimal differences between treatment arms “implying that cognitive function does not need to be an aspect when deciding on treatment.”

Ms. Luijendijk reported no relevant disclosures.

Patients starting first-line endocrine and CDK4/6 inhibition for advanced breast cancer show minimal additional cognitive decline beyond what they had already experienced from their neoadjuvant and adjuvant treatments, according to new results of the SONIA trial.

“Patients who are diagnosed with advanced breast cancer and start their first-line treatment already show cognitive impairments due to their previous treatments. And luckily, our results show that during first-line treatment for advanced breast cancer with endocrine therapy, with or without a CDK4/6 inhibitor, further cognitive decline is minimal,” lead investigator Maryse Luijendijk, said during her presentation at the annual meeting of the American Society of Clinical Oncology (ASCO).

“It is well known that cancer patients can experience cognitive problems, such as memory loss, problems with concentration or with planning, during or following their treatment,” explained Ms. Luijendijk, a PhD candidate in the department of Psychosocial Research and Epidemiology at the Netherlands Cancer Institute, in Amsterdam. “Much is known about the effects of chemotherapy or irradiation to the brain, but evidence into endocrine therapy is scarce, which is surprising because cognitive effects are biologically plausible.

“We know that estrogen plays an important role in neuronal functioning and that certain types of endocrine therapies are able to cross the blood-brain barrier, where they may interact with estrogen receptors distributed widely throughout the brain … We know that CDK4/6 inhibitors may either negatively affect cognitive function by increased fatigue due to cytokine release or by interrupting the cell cycle of healthy cells, or positively, as they have been associated with reduced inflammation and remyelination.”

Initial results of the SONIA trial, reported at ASCO last year, examined overall and progression-free survival in patients with HR-positive, HER2-negative metastatic breast cancer and no prior treatment for advanced disease. Findings for those who were randomized to treatment with nonsteroidal aromatase inhibition either with or without the addition of CDK4/6 inhibitors showed no between-group differences, explained Ms. Luijendijk.

The new results, described as being from the SONIA-EfFECT (Evaluation of cognitive functioning in patients with metastatic breast cancer treated with endocrine or combined therapy) trial, were based on the authors investigating cognitive functioning in the same cohort used in the SONIA trial plus a control group.

In SONIA-EfFECT, patients who participated in SONIA were asked to identify a female relative or friend without cancer to serve as a cancer-free control. Members of the 130-patient control group were matched for age, education, and computer use.

Participants in the SONIA trial and control group were asked to complete the Amsterdam Cognition Scan, an online neuropsychological test battery at baseline and again after 9 months of treatment. Of those patients from SONIA, 130 had received first-line treatment with aromatase inhibitors with CDK4/6 inhibition (Arm A) and 130 had received aromatase inhibitors without CDK4/6 inhibition (Arm B).

Baseline assessments for SONIA-EfFECT were completed for 260 patients from SONIA and the full 130-person control group. Follow-up assessments were completed for 119 members of the control group and 199 patients from the original SONIA trial (108 from Arm A, and 91 from Arm B). Patients from SONIA who switched to second-line treatment within 9 months were not retested.

Patients in both SONIA arms performed significantly worse than the controls on the domains of verbal memory, working memory, processing speed, executive function, and motor function. In both patient arms and the controls, standardized regression-based change scores showed limited decline in cognitive function over the 9-month interval. Minimal differences in cognitive change were observed between the patients treated with and without CDK4/6 inhibitors, and between patients and the controls, according to the abstract for SONIA-EfFECT, published in the program for the annual meeting of ASCO.

“At baseline, patients show worse cognitive function across all domains compared to the controls. And as expected, there were no differences between the two treatment arms,” Ms. Luijendijk explained. After 9 months of treatment, the testing showed limited further decline among patients, “and even some improvement on some tests,” with minimal differences between treatment arms “implying that cognitive function does not need to be an aspect when deciding on treatment.”

Ms. Luijendijk reported no relevant disclosures.

HELSINKI, FINLAND — A new gene for early-onset Parkinson’s disease has been identified, a discovery that experts believe will have important clinical implications in the not-too-distant future.

A variant in PMSF1, a proteasome regulator, was identified in 15 families from 13 countries around the world, with 22 affected individuals.

“These families were ethnically diverse, and in all of them, the variant in PMSF1 correlated with the neurologic phenotype. We know this is very clear cut — the genotype/phenotype correlation — with the patients carrying the missense mutation having ‘mild’ symptoms, while those with the progressive loss-of-function variant had the most severe phenotype,” she noted. 

“Our findings unequivocally link defective PSMF1 to early-onset PD and neurodegeneration and suggest mitochondrial dysfunction as a mechanistic contributor,” study investigator Francesca Magrinelli, MD, PhD, of University College London (UCL) Queen Square Institute of Neurology, UCL, London, told delegates at the 2024 Congress of the European Academy of Neurology.
 

Managing Patient Expectations

Those “mildly” affected had an early-onset Parkinson’s disease starting between the second and fifth decade of life with pyramidal tract signs, dysphasia, psychiatric comorbidity, and early levodopa-induced dyskinesia. 

In those with the intermediate type, Parkinson’s disease symptoms start in childhood and include, among other things, global hypokinesia, developmental delay, cerebellar signs, and in some, associated epilepsy.

In most cases, there was evidence on brain MRI of a hypoplasia of the corpus callosum, Dr. Magrinelli said. In the most severely affected individuals, there was perinatal lethality with neurologic manifestations.

While it may seem that the genetics of Parkinson’s disease is an academic exercise for the most part, it won’t be too much longer before it yields practical information that will inform how patients are treated, said Parkinson’s disease expert Christine Klein, MD, of the Institute of Neurogenetics and Department of Neurology, University of Lübeck, Helsinki, Finland. 

The genetics of Parkinson’s disease are complicated, even within a single family. So, it’s very important to assess the pathogenicity of different variants, Dr. Klein noted. 

“I am sure that you have all had a Parkinson’s disease [gene] panel back, and it says, ‘variant of uncertain significance.’ This is the worst thing that can happen. The lab does not know what it means. You don’t know what it means, and you don’t know what to tell the patient. So how do you get around this?”

Dr. Klein said that before conducting any genetic testing, clinicians should inform the patient that they may have a genetic variant of uncertain significance. It doesn’t solve the problem, but it does help physicians manage patient expectations. 
 

Clinical Relevance on the Way?

While it may seem that all of the identified variants that predict Parkinson’s disease which, in addition to PSMF1, include the well-established LRRK2 and GBA1, may look the same, this is not true when patient history is taken into account, said Dr. Klein.

For example, age-of-onset of Parkinson’s disease can differ between identified variants, and this has led to “a paradigm change” whereby a purely genetic finding is called a disease. 

This first occurred in Huntington’s disease, when researchers gave individuals at high genetic risk of developing the illness, but who currently had no clinical symptoms, the label of “Stage Zero disease.”

This is important to note “because if we get to the stage of having drugs that can slow down, or even prevent, progression to Parkinson’s disease, then it will be key to have patients we know are going to develop it to participate in clinical trials for such agents,” said Dr. Klein. 

She cited the example of a family that she recently encountered that had genetic test results that showed variants of unknown significance, so Dr. Klein had the family’s samples sent to a specialized lab in Dundee, Scotland, for further analysis.

“The biochemists found that this variant was indeed pathogenic, and kinase-activating, so this is very helpful and very important because there are now clinical trials in Parkinson’s disease with kinase inhibitors,” she noted. 

“If you think there is something else [over and above the finding of uncertain significance] in your Parkinson’s disease panel, and you are not happy with the genetic report, send it somewhere else,” Dr. Klein advised. 

“We will see a lot more patients with genetic Parkinson’s disease in the future,” she predicted, while citing two recent preliminary clinical trials that have shown some promise in terms of neuroprotection in patients with early Parkinson’s disease.

“It remains to be seen whether there will be light at the end of the tunnel,” she said, but it may soon be possible to find treatments that delay, or even prevent, Parkinson’s disease onset. 

Dr. Magrinelli reported receiving speaker’s honoraria from MJFF Edmond J. Safra Clinical Research Fellowship in Movement Disorders (Class of 2023), MJFF Edmond J. Safra Movement Disorders Research Career Development Award 2023 (Grant ID MJFF-023893), American Parkinson Disease Association (Research Grant 2024), and the David Blank Charitable Foundation. Dr. Klein reported being a medical advisor to Retromer Therapeutics, Takeda, and Centogene and speakers’ honoraria from Desitin and Bial.

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

HELSINKI, FINLAND — A new gene for early-onset Parkinson’s disease has been identified, a discovery that experts believe will have important clinical implications in the not-too-distant future.

A variant in PMSF1, a proteasome regulator, was identified in 15 families from 13 countries around the world, with 22 affected individuals.

“These families were ethnically diverse, and in all of them, the variant in PMSF1 correlated with the neurologic phenotype. We know this is very clear cut — the genotype/phenotype correlation — with the patients carrying the missense mutation having ‘mild’ symptoms, while those with the progressive loss-of-function variant had the most severe phenotype,” she noted. 

“Our findings unequivocally link defective PSMF1 to early-onset PD and neurodegeneration and suggest mitochondrial dysfunction as a mechanistic contributor,” study investigator Francesca Magrinelli, MD, PhD, of University College London (UCL) Queen Square Institute of Neurology, UCL, London, told delegates at the 2024 Congress of the European Academy of Neurology.
 

Managing Patient Expectations

Those “mildly” affected had an early-onset Parkinson’s disease starting between the second and fifth decade of life with pyramidal tract signs, dysphasia, psychiatric comorbidity, and early levodopa-induced dyskinesia. 

In those with the intermediate type, Parkinson’s disease symptoms start in childhood and include, among other things, global hypokinesia, developmental delay, cerebellar signs, and in some, associated epilepsy.

In most cases, there was evidence on brain MRI of a hypoplasia of the corpus callosum, Dr. Magrinelli said. In the most severely affected individuals, there was perinatal lethality with neurologic manifestations.

While it may seem that the genetics of Parkinson’s disease is an academic exercise for the most part, it won’t be too much longer before it yields practical information that will inform how patients are treated, said Parkinson’s disease expert Christine Klein, MD, of the Institute of Neurogenetics and Department of Neurology, University of Lübeck, Helsinki, Finland. 

The genetics of Parkinson’s disease are complicated, even within a single family. So, it’s very important to assess the pathogenicity of different variants, Dr. Klein noted. 

“I am sure that you have all had a Parkinson’s disease [gene] panel back, and it says, ‘variant of uncertain significance.’ This is the worst thing that can happen. The lab does not know what it means. You don’t know what it means, and you don’t know what to tell the patient. So how do you get around this?”

Dr. Klein said that before conducting any genetic testing, clinicians should inform the patient that they may have a genetic variant of uncertain significance. It doesn’t solve the problem, but it does help physicians manage patient expectations. 
 

Clinical Relevance on the Way?

While it may seem that all of the identified variants that predict Parkinson’s disease which, in addition to PSMF1, include the well-established LRRK2 and GBA1, may look the same, this is not true when patient history is taken into account, said Dr. Klein.

For example, age-of-onset of Parkinson’s disease can differ between identified variants, and this has led to “a paradigm change” whereby a purely genetic finding is called a disease. 

This first occurred in Huntington’s disease, when researchers gave individuals at high genetic risk of developing the illness, but who currently had no clinical symptoms, the label of “Stage Zero disease.”

This is important to note “because if we get to the stage of having drugs that can slow down, or even prevent, progression to Parkinson’s disease, then it will be key to have patients we know are going to develop it to participate in clinical trials for such agents,” said Dr. Klein. 

She cited the example of a family that she recently encountered that had genetic test results that showed variants of unknown significance, so Dr. Klein had the family’s samples sent to a specialized lab in Dundee, Scotland, for further analysis.

“The biochemists found that this variant was indeed pathogenic, and kinase-activating, so this is very helpful and very important because there are now clinical trials in Parkinson’s disease with kinase inhibitors,” she noted. 

“If you think there is something else [over and above the finding of uncertain significance] in your Parkinson’s disease panel, and you are not happy with the genetic report, send it somewhere else,” Dr. Klein advised. 

“We will see a lot more patients with genetic Parkinson’s disease in the future,” she predicted, while citing two recent preliminary clinical trials that have shown some promise in terms of neuroprotection in patients with early Parkinson’s disease.

“It remains to be seen whether there will be light at the end of the tunnel,” she said, but it may soon be possible to find treatments that delay, or even prevent, Parkinson’s disease onset. 

Dr. Magrinelli reported receiving speaker’s honoraria from MJFF Edmond J. Safra Clinical Research Fellowship in Movement Disorders (Class of 2023), MJFF Edmond J. Safra Movement Disorders Research Career Development Award 2023 (Grant ID MJFF-023893), American Parkinson Disease Association (Research Grant 2024), and the David Blank Charitable Foundation. Dr. Klein reported being a medical advisor to Retromer Therapeutics, Takeda, and Centogene and speakers’ honoraria from Desitin and Bial.

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

HELSINKI, FINLAND — A new gene for early-onset Parkinson’s disease has been identified, a discovery that experts believe will have important clinical implications in the not-too-distant future.

A variant in PMSF1, a proteasome regulator, was identified in 15 families from 13 countries around the world, with 22 affected individuals.

“These families were ethnically diverse, and in all of them, the variant in PMSF1 correlated with the neurologic phenotype. We know this is very clear cut — the genotype/phenotype correlation — with the patients carrying the missense mutation having ‘mild’ symptoms, while those with the progressive loss-of-function variant had the most severe phenotype,” she noted. 

“Our findings unequivocally link defective PSMF1 to early-onset PD and neurodegeneration and suggest mitochondrial dysfunction as a mechanistic contributor,” study investigator Francesca Magrinelli, MD, PhD, of University College London (UCL) Queen Square Institute of Neurology, UCL, London, told delegates at the 2024 Congress of the European Academy of Neurology.
 

Managing Patient Expectations

Those “mildly” affected had an early-onset Parkinson’s disease starting between the second and fifth decade of life with pyramidal tract signs, dysphasia, psychiatric comorbidity, and early levodopa-induced dyskinesia. 

In those with the intermediate type, Parkinson’s disease symptoms start in childhood and include, among other things, global hypokinesia, developmental delay, cerebellar signs, and in some, associated epilepsy.

In most cases, there was evidence on brain MRI of a hypoplasia of the corpus callosum, Dr. Magrinelli said. In the most severely affected individuals, there was perinatal lethality with neurologic manifestations.

While it may seem that the genetics of Parkinson’s disease is an academic exercise for the most part, it won’t be too much longer before it yields practical information that will inform how patients are treated, said Parkinson’s disease expert Christine Klein, MD, of the Institute of Neurogenetics and Department of Neurology, University of Lübeck, Helsinki, Finland. 

The genetics of Parkinson’s disease are complicated, even within a single family. So, it’s very important to assess the pathogenicity of different variants, Dr. Klein noted. 

“I am sure that you have all had a Parkinson’s disease [gene] panel back, and it says, ‘variant of uncertain significance.’ This is the worst thing that can happen. The lab does not know what it means. You don’t know what it means, and you don’t know what to tell the patient. So how do you get around this?”

Dr. Klein said that before conducting any genetic testing, clinicians should inform the patient that they may have a genetic variant of uncertain significance. It doesn’t solve the problem, but it does help physicians manage patient expectations. 
 

Clinical Relevance on the Way?

While it may seem that all of the identified variants that predict Parkinson’s disease which, in addition to PSMF1, include the well-established LRRK2 and GBA1, may look the same, this is not true when patient history is taken into account, said Dr. Klein.

For example, age-of-onset of Parkinson’s disease can differ between identified variants, and this has led to “a paradigm change” whereby a purely genetic finding is called a disease. 

This first occurred in Huntington’s disease, when researchers gave individuals at high genetic risk of developing the illness, but who currently had no clinical symptoms, the label of “Stage Zero disease.”

This is important to note “because if we get to the stage of having drugs that can slow down, or even prevent, progression to Parkinson’s disease, then it will be key to have patients we know are going to develop it to participate in clinical trials for such agents,” said Dr. Klein. 

She cited the example of a family that she recently encountered that had genetic test results that showed variants of unknown significance, so Dr. Klein had the family’s samples sent to a specialized lab in Dundee, Scotland, for further analysis.

“The biochemists found that this variant was indeed pathogenic, and kinase-activating, so this is very helpful and very important because there are now clinical trials in Parkinson’s disease with kinase inhibitors,” she noted. 

“If you think there is something else [over and above the finding of uncertain significance] in your Parkinson’s disease panel, and you are not happy with the genetic report, send it somewhere else,” Dr. Klein advised. 

“We will see a lot more patients with genetic Parkinson’s disease in the future,” she predicted, while citing two recent preliminary clinical trials that have shown some promise in terms of neuroprotection in patients with early Parkinson’s disease.

“It remains to be seen whether there will be light at the end of the tunnel,” she said, but it may soon be possible to find treatments that delay, or even prevent, Parkinson’s disease onset. 

Dr. Magrinelli reported receiving speaker’s honoraria from MJFF Edmond J. Safra Clinical Research Fellowship in Movement Disorders (Class of 2023), MJFF Edmond J. Safra Movement Disorders Research Career Development Award 2023 (Grant ID MJFF-023893), American Parkinson Disease Association (Research Grant 2024), and the David Blank Charitable Foundation. Dr. Klein reported being a medical advisor to Retromer Therapeutics, Takeda, and Centogene and speakers’ honoraria from Desitin and Bial.

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

It’s the difference between running a marathon and taking a leisurely stroll. That’s how recent pediatrics resident Joey Whelihan, MD, compared an 11-hour inpatient hospital day with an 8-hour outpatient shift where residents see patients in a clinic.

With inpatient training, “you are lucky if you have time to cook dinner, go to bed, and get ready for the next day,” said Dr. Whelihan, who recently started his adolescent medicine fellowship at Children’s Hospital of Philadelphia after 3 years of residency there. Some residents have call every fourth day during inpatient rotations, working 24-28 hours at a time. They come in one morning and go home the next, he told this news organization.

“Outpatient blocks give you more time to catch your breath and feel somewhat refreshed and ready to take care of patients.”

Longer stretches of inpatient rotations are not sustainable, Dr. Whelihan added, and residents are likely to become exhausted. Fatigue is a leading cause of burnout, a mental, physical, and emotional challenge that residency programs and national medical organizations have been struggling to address.

In recent years, there has been a movement to reduce the maximum consecutive duration of resident duty hours in residency programs across the country. Fueled by resident health and patient safety concerns, the movement is a shift from the previous 24- to 36-hour call duty schedules.
 

Improved Call Systems = Better Residents

The connection between burnout, well-being, and work schedules appears regularly in national program standards. “Residents and faculty members are at risk for burnout and depression,” according to the current Accreditation Council for Graduate Medical Education’s standard residency program requirements.

“Programs, in partnership with their sponsoring institutions, have the same responsibility to address well-being as other aspects of resident competence,” the guidelines state. That charge includes “attention to scheduling, work intensity, and work compression that impacts resident well-being.”

In Medscape’s Residents Lifestyle & Happiness Report 2023, a third of residents surveyed rarely or never paid attention to their well-being, which closely mirrors the 31% who rarely or never had time for a social life. Slightly more residents (37%) said their work-life balance was “somewhat worse” or “much worse” than they expected.

“I think everyone has burnout as a resident, regardless of the type of program they are in,” Dr. Whelihan said. He described the experience as when you lack fulfillment and empathy and feel exhausted, callous, and removed from interactions with colleagues and patients.

The American Medical Association’s recently released report on the state of residency well-being in 2023 also found that about 43% of residents and fellows had at least one symptom of burnout, about a 2% increase from 2022.
 

Efforts to Combat Burnout

One residency program found a way to reduce burnout by changing its block scheduling from 4 inpatient weeks followed by 1 outpatient week (4 + 1) to 4 inpatient call-based weeks and 4 outpatient ambulatory, non-call weeks (4 + 4), according to a survey study published recently in JAMA Network Open. The initiative drew praise from some residents and a med school professor who studies wellness issues.

In the survey of postgraduate year (PGY) 1 and PGY-2 hospitalist and primary care residents from the University of Colorado’s Internal Medicine Residency Program, Aurora, between June 2019 and June 2021, the schedule change resulted in improved burnout scores and self-reported professional, educational, and health benefits.

As part of the survey, residents rated symptoms on a 7-point scale on the basis of how frequently they experienced emotional exhaustion, depersonalization, and personal accomplishment.

Investigators also used a questionnaire to evaluate how participants perceived the rotation structure with various outcomes, including the ability to acquire clinical skills, access educational and scholarly opportunities, job satisfaction, and health.

The study concluded that the schedule change improved burnout, health, wellness, and professional development without weakening residents perceived clinical skills or standardized exam scores.

Still, the study authors acknowledged that several factors, including the pandemic, may have limited the findings. During that time, the study transitioned from in-person to electronic submissions, resulting in reduced response rates because of changes in staffing needs and fewer research and scholarly activities.

“One of the things we worried about was that the pandemic would make [burnout findings] look worse,” said lead author Dan Heppe, MD, a hospitalist and associate director of the CU Internal Medicine Residency Program. “Anecdotally, residents may have had more support in our program than perhaps some other programs. Though they had long hours with very sick patients, we tried to keep going in a positive direction.”

Dr. Heppe said in an interview that the purpose of the schedule change was to space out more intense rotations and build in more time for research, leadership, teaching, and professional development. He suggested the new schedule could help with other aspects of residents’ careers, exposing them to alternate avenues earlier in their training and in a more structured way.

Like most of the study authors, Dr. Heppe is a graduate of the residency program. He recalled how the program changed from multiple inpatient months in a row with clinic half days during those rotations to a 4 + 1 schedule. But the 1 week between inpatient rotations wasn’t enough time to recover or catch up on clinical work, said Dr. Heppe, who is also an associate professor of medicine at CU.

“It was too erratic,” he said of his former residency schedule. “There was a month of research here or there and clinic and then right back to the ICU for a couple of months without a break, and it was less predictable.”

Dr. Heppe said other residency programs have expressed interest in duplicating CU’s schedule change. He admits it may be difficult because of intensive schedule coordination, and some hospitals may not want to reduce clinical services.

The Yale Internal Medicine Traditional Residency Program also recently ended its 28-hour call, during which residents worked 24 hours with an additional 4 hours to transfer the patient to the incoming team. The move was made in response to residents’ requests, saying that the grueling call rotation’s time had come. The reaction has been overwhelmingly positive.

Proponents of alternate scheduling blocks [4 + 4 or 6 + 2] say that they improve residents’ educational experience, patient care, and continuity of care, reduce burnout, and guarantee residents time off.
 

Advancing Resident Well-Being

“The premise of looking at scheduling in a more intentional way is a sound one in the process of trying to support and advance resident well-being,” said Mark Greenawald, MD, vice chair of academic affairs, well-being, and professional development for the Virginia Tech Carilion School of Medicine’s Department of Family and Community Medicine in Roanoke.

He said it’s up to residency program directors or graduate medical education departments within a specialty to determine whether such scheduling changes fit their requirements for inpatient and outpatient care and training electives. Requirements may limit some scheduling changes, but within the specialty, there’s some flexibility to be creative with rotations. The CU study considered how to create a residency rhythm without stacking inpatient rotations so there’s recovery time.

“Human beings need a break. If residents work 80 hours continually, they will start to experience greater distress, which for many leads to burnout,” he said

Still, the study includes design flaws because it doesn’t explain how call times and hours differ between inpatient and outpatient rotations. “My own [family medicine] program also does outpatient clinics when we have inpatient service. We have half days in the clinic, which ensures better continuity care with the patient.”

Dr. Greenawald has yet to see much research published about the impact of resident schedule changes. By taking an experimental approach, the CU study showed that their particular change positively affected burnout. If the study leads to improvements in rotation schedules or encourages other programs to experiment with their schedules, it will be a step in the right direction.
 

How Residents Respond

Haidn Foster, MD, a third-year internal medicine resident at Penn State Health Milton S. Hershey Medical Center, Hershey, remembered experiencing burnout as an intern. At that time, he occasionally dealt with poor patient outcomes and sick patients while working long hours with only 1 day off each week. During a particularly challenging rotation, he felt overwhelmed and numb, which was exacerbated if a patient’s condition worsened or they passed away, he said.

His program follows a schedule of 6 weeks of inpatient training and 2 weeks of outpatient rotations (6 + 2). He said that restructuring residents’ schedules may be more effective than commonly used individual wellness modules, referring to the CU study. “The authors tried out a novel systematic way to tackle the epidemic of physician burnout overwhelming people in the medical community.”

Although the study found that schedule changes don’t affect standardized exam scores, Dr. Foster wondered about preceptor ratings, another marker for clinical competency.

He said future studies should attempt to change the structure of medical training delivery by evaluating models that best reduce burnout, are consistent with residents’ career goals, and produce competent physicians. “Burnout plagues our medical system and leads to too many physicians and physicians-in-training leaving the field or taking their lives. I’m not sure this particular mechanism gets us there, but it’s a step, and so that’s very important.”

Like Dr. Foster, Dr. Whelihan follows a 6 + 2 schedule. He said he would have welcomed a schedule that included more outpatient and less inpatient training and can see how changes in scheduling could reduce burnout. “More outpatient time gives you an opportunity to breathe. You get a little more time off working in clinic with less sick people at a slower pace.”

Ally Fuher, MD, said she chose CU’s Internal Medicine Residency Program 4 years ago largely because of its innovative schedule. Now the program’s chief medical resident, she knew the structure would give her more time to pursue other nonclinical interests including research and medical education, meet regularly with mentors, visit family in another state, and attend important life events.

She acknowledged that the alternative would have meant a more irregular schedule with the possibility of working as many as 80 hours a week on back-to-back inpatient rotations with only 1 day off a week, leaving minimal time to plan other activities, let alone rest and recover.

Dr. Fuher said a balanced schedule made her a more well-rounded person excited to engage in her profession. While she hasn’t personally experienced burnout, she realizes a schedule change may not completely solve the issue for others. However, it shows what progress programs can make when they create systemic structural change.

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

It’s the difference between running a marathon and taking a leisurely stroll. That’s how recent pediatrics resident Joey Whelihan, MD, compared an 11-hour inpatient hospital day with an 8-hour outpatient shift where residents see patients in a clinic.

With inpatient training, “you are lucky if you have time to cook dinner, go to bed, and get ready for the next day,” said Dr. Whelihan, who recently started his adolescent medicine fellowship at Children’s Hospital of Philadelphia after 3 years of residency there. Some residents have call every fourth day during inpatient rotations, working 24-28 hours at a time. They come in one morning and go home the next, he told this news organization.

“Outpatient blocks give you more time to catch your breath and feel somewhat refreshed and ready to take care of patients.”

Longer stretches of inpatient rotations are not sustainable, Dr. Whelihan added, and residents are likely to become exhausted. Fatigue is a leading cause of burnout, a mental, physical, and emotional challenge that residency programs and national medical organizations have been struggling to address.

In recent years, there has been a movement to reduce the maximum consecutive duration of resident duty hours in residency programs across the country. Fueled by resident health and patient safety concerns, the movement is a shift from the previous 24- to 36-hour call duty schedules.
 

Improved Call Systems = Better Residents

The connection between burnout, well-being, and work schedules appears regularly in national program standards. “Residents and faculty members are at risk for burnout and depression,” according to the current Accreditation Council for Graduate Medical Education’s standard residency program requirements.

“Programs, in partnership with their sponsoring institutions, have the same responsibility to address well-being as other aspects of resident competence,” the guidelines state. That charge includes “attention to scheduling, work intensity, and work compression that impacts resident well-being.”

In Medscape’s Residents Lifestyle & Happiness Report 2023, a third of residents surveyed rarely or never paid attention to their well-being, which closely mirrors the 31% who rarely or never had time for a social life. Slightly more residents (37%) said their work-life balance was “somewhat worse” or “much worse” than they expected.

“I think everyone has burnout as a resident, regardless of the type of program they are in,” Dr. Whelihan said. He described the experience as when you lack fulfillment and empathy and feel exhausted, callous, and removed from interactions with colleagues and patients.

The American Medical Association’s recently released report on the state of residency well-being in 2023 also found that about 43% of residents and fellows had at least one symptom of burnout, about a 2% increase from 2022.
 

Efforts to Combat Burnout

One residency program found a way to reduce burnout by changing its block scheduling from 4 inpatient weeks followed by 1 outpatient week (4 + 1) to 4 inpatient call-based weeks and 4 outpatient ambulatory, non-call weeks (4 + 4), according to a survey study published recently in JAMA Network Open. The initiative drew praise from some residents and a med school professor who studies wellness issues.

In the survey of postgraduate year (PGY) 1 and PGY-2 hospitalist and primary care residents from the University of Colorado’s Internal Medicine Residency Program, Aurora, between June 2019 and June 2021, the schedule change resulted in improved burnout scores and self-reported professional, educational, and health benefits.

As part of the survey, residents rated symptoms on a 7-point scale on the basis of how frequently they experienced emotional exhaustion, depersonalization, and personal accomplishment.

Investigators also used a questionnaire to evaluate how participants perceived the rotation structure with various outcomes, including the ability to acquire clinical skills, access educational and scholarly opportunities, job satisfaction, and health.

The study concluded that the schedule change improved burnout, health, wellness, and professional development without weakening residents perceived clinical skills or standardized exam scores.

Still, the study authors acknowledged that several factors, including the pandemic, may have limited the findings. During that time, the study transitioned from in-person to electronic submissions, resulting in reduced response rates because of changes in staffing needs and fewer research and scholarly activities.

“One of the things we worried about was that the pandemic would make [burnout findings] look worse,” said lead author Dan Heppe, MD, a hospitalist and associate director of the CU Internal Medicine Residency Program. “Anecdotally, residents may have had more support in our program than perhaps some other programs. Though they had long hours with very sick patients, we tried to keep going in a positive direction.”

Dr. Heppe said in an interview that the purpose of the schedule change was to space out more intense rotations and build in more time for research, leadership, teaching, and professional development. He suggested the new schedule could help with other aspects of residents’ careers, exposing them to alternate avenues earlier in their training and in a more structured way.

Like most of the study authors, Dr. Heppe is a graduate of the residency program. He recalled how the program changed from multiple inpatient months in a row with clinic half days during those rotations to a 4 + 1 schedule. But the 1 week between inpatient rotations wasn’t enough time to recover or catch up on clinical work, said Dr. Heppe, who is also an associate professor of medicine at CU.

“It was too erratic,” he said of his former residency schedule. “There was a month of research here or there and clinic and then right back to the ICU for a couple of months without a break, and it was less predictable.”

Dr. Heppe said other residency programs have expressed interest in duplicating CU’s schedule change. He admits it may be difficult because of intensive schedule coordination, and some hospitals may not want to reduce clinical services.

The Yale Internal Medicine Traditional Residency Program also recently ended its 28-hour call, during which residents worked 24 hours with an additional 4 hours to transfer the patient to the incoming team. The move was made in response to residents’ requests, saying that the grueling call rotation’s time had come. The reaction has been overwhelmingly positive.

Proponents of alternate scheduling blocks [4 + 4 or 6 + 2] say that they improve residents’ educational experience, patient care, and continuity of care, reduce burnout, and guarantee residents time off.
 

Advancing Resident Well-Being

“The premise of looking at scheduling in a more intentional way is a sound one in the process of trying to support and advance resident well-being,” said Mark Greenawald, MD, vice chair of academic affairs, well-being, and professional development for the Virginia Tech Carilion School of Medicine’s Department of Family and Community Medicine in Roanoke.

He said it’s up to residency program directors or graduate medical education departments within a specialty to determine whether such scheduling changes fit their requirements for inpatient and outpatient care and training electives. Requirements may limit some scheduling changes, but within the specialty, there’s some flexibility to be creative with rotations. The CU study considered how to create a residency rhythm without stacking inpatient rotations so there’s recovery time.

“Human beings need a break. If residents work 80 hours continually, they will start to experience greater distress, which for many leads to burnout,” he said

Still, the study includes design flaws because it doesn’t explain how call times and hours differ between inpatient and outpatient rotations. “My own [family medicine] program also does outpatient clinics when we have inpatient service. We have half days in the clinic, which ensures better continuity care with the patient.”

Dr. Greenawald has yet to see much research published about the impact of resident schedule changes. By taking an experimental approach, the CU study showed that their particular change positively affected burnout. If the study leads to improvements in rotation schedules or encourages other programs to experiment with their schedules, it will be a step in the right direction.
 

How Residents Respond

Haidn Foster, MD, a third-year internal medicine resident at Penn State Health Milton S. Hershey Medical Center, Hershey, remembered experiencing burnout as an intern. At that time, he occasionally dealt with poor patient outcomes and sick patients while working long hours with only 1 day off each week. During a particularly challenging rotation, he felt overwhelmed and numb, which was exacerbated if a patient’s condition worsened or they passed away, he said.

His program follows a schedule of 6 weeks of inpatient training and 2 weeks of outpatient rotations (6 + 2). He said that restructuring residents’ schedules may be more effective than commonly used individual wellness modules, referring to the CU study. “The authors tried out a novel systematic way to tackle the epidemic of physician burnout overwhelming people in the medical community.”

Although the study found that schedule changes don’t affect standardized exam scores, Dr. Foster wondered about preceptor ratings, another marker for clinical competency.

He said future studies should attempt to change the structure of medical training delivery by evaluating models that best reduce burnout, are consistent with residents’ career goals, and produce competent physicians. “Burnout plagues our medical system and leads to too many physicians and physicians-in-training leaving the field or taking their lives. I’m not sure this particular mechanism gets us there, but it’s a step, and so that’s very important.”

Like Dr. Foster, Dr. Whelihan follows a 6 + 2 schedule. He said he would have welcomed a schedule that included more outpatient and less inpatient training and can see how changes in scheduling could reduce burnout. “More outpatient time gives you an opportunity to breathe. You get a little more time off working in clinic with less sick people at a slower pace.”

Ally Fuher, MD, said she chose CU’s Internal Medicine Residency Program 4 years ago largely because of its innovative schedule. Now the program’s chief medical resident, she knew the structure would give her more time to pursue other nonclinical interests including research and medical education, meet regularly with mentors, visit family in another state, and attend important life events.

She acknowledged that the alternative would have meant a more irregular schedule with the possibility of working as many as 80 hours a week on back-to-back inpatient rotations with only 1 day off a week, leaving minimal time to plan other activities, let alone rest and recover.

Dr. Fuher said a balanced schedule made her a more well-rounded person excited to engage in her profession. While she hasn’t personally experienced burnout, she realizes a schedule change may not completely solve the issue for others. However, it shows what progress programs can make when they create systemic structural change.

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

It’s the difference between running a marathon and taking a leisurely stroll. That’s how recent pediatrics resident Joey Whelihan, MD, compared an 11-hour inpatient hospital day with an 8-hour outpatient shift where residents see patients in a clinic.

With inpatient training, “you are lucky if you have time to cook dinner, go to bed, and get ready for the next day,” said Dr. Whelihan, who recently started his adolescent medicine fellowship at Children’s Hospital of Philadelphia after 3 years of residency there. Some residents have call every fourth day during inpatient rotations, working 24-28 hours at a time. They come in one morning and go home the next, he told this news organization.

“Outpatient blocks give you more time to catch your breath and feel somewhat refreshed and ready to take care of patients.”

Longer stretches of inpatient rotations are not sustainable, Dr. Whelihan added, and residents are likely to become exhausted. Fatigue is a leading cause of burnout, a mental, physical, and emotional challenge that residency programs and national medical organizations have been struggling to address.

In recent years, there has been a movement to reduce the maximum consecutive duration of resident duty hours in residency programs across the country. Fueled by resident health and patient safety concerns, the movement is a shift from the previous 24- to 36-hour call duty schedules.
 

Improved Call Systems = Better Residents

The connection between burnout, well-being, and work schedules appears regularly in national program standards. “Residents and faculty members are at risk for burnout and depression,” according to the current Accreditation Council for Graduate Medical Education’s standard residency program requirements.

“Programs, in partnership with their sponsoring institutions, have the same responsibility to address well-being as other aspects of resident competence,” the guidelines state. That charge includes “attention to scheduling, work intensity, and work compression that impacts resident well-being.”

In Medscape’s Residents Lifestyle & Happiness Report 2023, a third of residents surveyed rarely or never paid attention to their well-being, which closely mirrors the 31% who rarely or never had time for a social life. Slightly more residents (37%) said their work-life balance was “somewhat worse” or “much worse” than they expected.

“I think everyone has burnout as a resident, regardless of the type of program they are in,” Dr. Whelihan said. He described the experience as when you lack fulfillment and empathy and feel exhausted, callous, and removed from interactions with colleagues and patients.

The American Medical Association’s recently released report on the state of residency well-being in 2023 also found that about 43% of residents and fellows had at least one symptom of burnout, about a 2% increase from 2022.
 

Efforts to Combat Burnout

One residency program found a way to reduce burnout by changing its block scheduling from 4 inpatient weeks followed by 1 outpatient week (4 + 1) to 4 inpatient call-based weeks and 4 outpatient ambulatory, non-call weeks (4 + 4), according to a survey study published recently in JAMA Network Open. The initiative drew praise from some residents and a med school professor who studies wellness issues.

In the survey of postgraduate year (PGY) 1 and PGY-2 hospitalist and primary care residents from the University of Colorado’s Internal Medicine Residency Program, Aurora, between June 2019 and June 2021, the schedule change resulted in improved burnout scores and self-reported professional, educational, and health benefits.

As part of the survey, residents rated symptoms on a 7-point scale on the basis of how frequently they experienced emotional exhaustion, depersonalization, and personal accomplishment.

Investigators also used a questionnaire to evaluate how participants perceived the rotation structure with various outcomes, including the ability to acquire clinical skills, access educational and scholarly opportunities, job satisfaction, and health.

The study concluded that the schedule change improved burnout, health, wellness, and professional development without weakening residents perceived clinical skills or standardized exam scores.

Still, the study authors acknowledged that several factors, including the pandemic, may have limited the findings. During that time, the study transitioned from in-person to electronic submissions, resulting in reduced response rates because of changes in staffing needs and fewer research and scholarly activities.

“One of the things we worried about was that the pandemic would make [burnout findings] look worse,” said lead author Dan Heppe, MD, a hospitalist and associate director of the CU Internal Medicine Residency Program. “Anecdotally, residents may have had more support in our program than perhaps some other programs. Though they had long hours with very sick patients, we tried to keep going in a positive direction.”

Dr. Heppe said in an interview that the purpose of the schedule change was to space out more intense rotations and build in more time for research, leadership, teaching, and professional development. He suggested the new schedule could help with other aspects of residents’ careers, exposing them to alternate avenues earlier in their training and in a more structured way.

Like most of the study authors, Dr. Heppe is a graduate of the residency program. He recalled how the program changed from multiple inpatient months in a row with clinic half days during those rotations to a 4 + 1 schedule. But the 1 week between inpatient rotations wasn’t enough time to recover or catch up on clinical work, said Dr. Heppe, who is also an associate professor of medicine at CU.

“It was too erratic,” he said of his former residency schedule. “There was a month of research here or there and clinic and then right back to the ICU for a couple of months without a break, and it was less predictable.”

Dr. Heppe said other residency programs have expressed interest in duplicating CU’s schedule change. He admits it may be difficult because of intensive schedule coordination, and some hospitals may not want to reduce clinical services.

The Yale Internal Medicine Traditional Residency Program also recently ended its 28-hour call, during which residents worked 24 hours with an additional 4 hours to transfer the patient to the incoming team. The move was made in response to residents’ requests, saying that the grueling call rotation’s time had come. The reaction has been overwhelmingly positive.

Proponents of alternate scheduling blocks [4 + 4 or 6 + 2] say that they improve residents’ educational experience, patient care, and continuity of care, reduce burnout, and guarantee residents time off.
 

Advancing Resident Well-Being

“The premise of looking at scheduling in a more intentional way is a sound one in the process of trying to support and advance resident well-being,” said Mark Greenawald, MD, vice chair of academic affairs, well-being, and professional development for the Virginia Tech Carilion School of Medicine’s Department of Family and Community Medicine in Roanoke.

He said it’s up to residency program directors or graduate medical education departments within a specialty to determine whether such scheduling changes fit their requirements for inpatient and outpatient care and training electives. Requirements may limit some scheduling changes, but within the specialty, there’s some flexibility to be creative with rotations. The CU study considered how to create a residency rhythm without stacking inpatient rotations so there’s recovery time.

“Human beings need a break. If residents work 80 hours continually, they will start to experience greater distress, which for many leads to burnout,” he said

Still, the study includes design flaws because it doesn’t explain how call times and hours differ between inpatient and outpatient rotations. “My own [family medicine] program also does outpatient clinics when we have inpatient service. We have half days in the clinic, which ensures better continuity care with the patient.”

Dr. Greenawald has yet to see much research published about the impact of resident schedule changes. By taking an experimental approach, the CU study showed that their particular change positively affected burnout. If the study leads to improvements in rotation schedules or encourages other programs to experiment with their schedules, it will be a step in the right direction.
 

How Residents Respond

Haidn Foster, MD, a third-year internal medicine resident at Penn State Health Milton S. Hershey Medical Center, Hershey, remembered experiencing burnout as an intern. At that time, he occasionally dealt with poor patient outcomes and sick patients while working long hours with only 1 day off each week. During a particularly challenging rotation, he felt overwhelmed and numb, which was exacerbated if a patient’s condition worsened or they passed away, he said.

His program follows a schedule of 6 weeks of inpatient training and 2 weeks of outpatient rotations (6 + 2). He said that restructuring residents’ schedules may be more effective than commonly used individual wellness modules, referring to the CU study. “The authors tried out a novel systematic way to tackle the epidemic of physician burnout overwhelming people in the medical community.”

Although the study found that schedule changes don’t affect standardized exam scores, Dr. Foster wondered about preceptor ratings, another marker for clinical competency.

He said future studies should attempt to change the structure of medical training delivery by evaluating models that best reduce burnout, are consistent with residents’ career goals, and produce competent physicians. “Burnout plagues our medical system and leads to too many physicians and physicians-in-training leaving the field or taking their lives. I’m not sure this particular mechanism gets us there, but it’s a step, and so that’s very important.”

Like Dr. Foster, Dr. Whelihan follows a 6 + 2 schedule. He said he would have welcomed a schedule that included more outpatient and less inpatient training and can see how changes in scheduling could reduce burnout. “More outpatient time gives you an opportunity to breathe. You get a little more time off working in clinic with less sick people at a slower pace.”

Ally Fuher, MD, said she chose CU’s Internal Medicine Residency Program 4 years ago largely because of its innovative schedule. Now the program’s chief medical resident, she knew the structure would give her more time to pursue other nonclinical interests including research and medical education, meet regularly with mentors, visit family in another state, and attend important life events.

She acknowledged that the alternative would have meant a more irregular schedule with the possibility of working as many as 80 hours a week on back-to-back inpatient rotations with only 1 day off a week, leaving minimal time to plan other activities, let alone rest and recover.

Dr. Fuher said a balanced schedule made her a more well-rounded person excited to engage in her profession. While she hasn’t personally experienced burnout, she realizes a schedule change may not completely solve the issue for others. However, it shows what progress programs can make when they create systemic structural change.

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

During a lecture at the 2024 International Congress on Obesity in São Paulo, Brazil, Dr. Carel Le Roux, a South African researcher, reflected on the Stratification of Obesity Phenotypes to Optimize Future Therapy (SOPHIA) project. The effort, of which Dr. Le Roux is a leader, involves using federated data and reframing obesity as a set of diseases, each with its own peculiarities and treatment needs.

A collaborative research initiative led by the European Union, the SOPHIA project is a public-private partnership that brings together healthcare professionals, universities, industry leaders, and patient organizations to rethink how we understand and treat obesity, considering factors beyond body mass index (BMI).

“We need to ask ourselves, ‘Is obesity a disease? Or, in fact, does ‘obesity’ refer to multiple diseases that lead to excess adipose tissue?’ ” Dr. Le Roux asked at the beginning of his presentation.

The researcher, who is also the director of the Obesity and Metabolic Medicine Group, stated that obesity can no longer be seen as a single homogeneous pathology but rather should be viewed as clinical conditions affecting various subpopulations that respond differently to treatments.

Patients are currently diagnosed with obesity based on BMI value or waist measurement, as recommended by current clinical guidelines, but this method contributes to treating obesity subtypes as if they were identical.

“By taking into account the patient’s specificities, we can identify individuals who are likely to progress rapidly with the disease and those who will respond well to targeted interventions,” said Dr. Le Roux, emphasizing that this approach also contributes to reducing public health system costs.

Researchers proposed creating a map that allows the visualization of the distinct characteristics of patients with obesity, such as the presence of associated diseases like hypertension and diabetes. One of the main challenges of the project was finding a way to share sensitive data among SOPHIA partners without compromising individual privacy. The solution was the creation of a federated database.

In practice, this system allows academic and industry partners to send data to a central server, which keeps them protected. “We wanted to reach the optimal point, where we can have maximum utility and maximum privacy protection using technology. Researchers can then obtain statistics, enabling the analysis of large data sets without compromising security,” Dr. Le Roux explained.

Most patients analyzed in the project fall into the main group, where “the higher the weight, the greater the risk” for associated diseases, he added. However, the project allows for specifically visualizing patients with alterations related to high blood pressure, liver function, lipid profile, blood glucose, and inflammation.

“Subclassifying diseases helps us better understand the various mechanisms by which these pathologies arise and why some individuals exhibit unexpected phenotypic patterns of increased susceptibility or resilience. For example, patients with inflammation changes have a much higher risk for developing type 2 diabetes, rheumatoid arthritis, and liver failure,” said Dr. Le Roux.

In addition to visualizing the associated diseases of each participant, SOPHIA, in which 30 partners in Europe, the Middle East, and the United States participate, also features treatment overlap, which allows researchers to track individual responses to the treatment.

“With this overlap, we confirm something that many know: When treating people with type 2 diabetes, whether through lifestyle changes, medication, or surgery, weight loss is lower. But, to our surprise, we found that patients with inflammation-related changes had greater weight loss. This finding tells us that some groups benefit more, and others less,” said Dr. Le Roux.

This analysis is particularly interesting when it comes to bariatric surgery, he continued. “Often, the surgeon performs an incredibly well-done gastric bypass, and the response is not as expected. In this case, we can say that it is purely biology,” said Dr. Le Roux, who concluded the presentation by discussing the benefits of this approach for good patient counseling.

“When we talk about ‘obesities’ and not ‘obesity,’ we can also conduct our consultations more carefully by explaining to our patients that if they do not respond to treatment, it is not their fault, not because they did something wrong, but because of something that is not usually taken into account, such as the presence of comorbidities, or even personal characteristics and lifestyle, such as age and smoking,” said Dr. Le Roux.

This story was translated from the Medscape Portuguese edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

During a lecture at the 2024 International Congress on Obesity in São Paulo, Brazil, Dr. Carel Le Roux, a South African researcher, reflected on the Stratification of Obesity Phenotypes to Optimize Future Therapy (SOPHIA) project. The effort, of which Dr. Le Roux is a leader, involves using federated data and reframing obesity as a set of diseases, each with its own peculiarities and treatment needs.

A collaborative research initiative led by the European Union, the SOPHIA project is a public-private partnership that brings together healthcare professionals, universities, industry leaders, and patient organizations to rethink how we understand and treat obesity, considering factors beyond body mass index (BMI).

“We need to ask ourselves, ‘Is obesity a disease? Or, in fact, does ‘obesity’ refer to multiple diseases that lead to excess adipose tissue?’ ” Dr. Le Roux asked at the beginning of his presentation.

The researcher, who is also the director of the Obesity and Metabolic Medicine Group, stated that obesity can no longer be seen as a single homogeneous pathology but rather should be viewed as clinical conditions affecting various subpopulations that respond differently to treatments.

Patients are currently diagnosed with obesity based on BMI value or waist measurement, as recommended by current clinical guidelines, but this method contributes to treating obesity subtypes as if they were identical.

“By taking into account the patient’s specificities, we can identify individuals who are likely to progress rapidly with the disease and those who will respond well to targeted interventions,” said Dr. Le Roux, emphasizing that this approach also contributes to reducing public health system costs.

Researchers proposed creating a map that allows the visualization of the distinct characteristics of patients with obesity, such as the presence of associated diseases like hypertension and diabetes. One of the main challenges of the project was finding a way to share sensitive data among SOPHIA partners without compromising individual privacy. The solution was the creation of a federated database.

In practice, this system allows academic and industry partners to send data to a central server, which keeps them protected. “We wanted to reach the optimal point, where we can have maximum utility and maximum privacy protection using technology. Researchers can then obtain statistics, enabling the analysis of large data sets without compromising security,” Dr. Le Roux explained.

Most patients analyzed in the project fall into the main group, where “the higher the weight, the greater the risk” for associated diseases, he added. However, the project allows for specifically visualizing patients with alterations related to high blood pressure, liver function, lipid profile, blood glucose, and inflammation.

“Subclassifying diseases helps us better understand the various mechanisms by which these pathologies arise and why some individuals exhibit unexpected phenotypic patterns of increased susceptibility or resilience. For example, patients with inflammation changes have a much higher risk for developing type 2 diabetes, rheumatoid arthritis, and liver failure,” said Dr. Le Roux.

In addition to visualizing the associated diseases of each participant, SOPHIA, in which 30 partners in Europe, the Middle East, and the United States participate, also features treatment overlap, which allows researchers to track individual responses to the treatment.

“With this overlap, we confirm something that many know: When treating people with type 2 diabetes, whether through lifestyle changes, medication, or surgery, weight loss is lower. But, to our surprise, we found that patients with inflammation-related changes had greater weight loss. This finding tells us that some groups benefit more, and others less,” said Dr. Le Roux.

This analysis is particularly interesting when it comes to bariatric surgery, he continued. “Often, the surgeon performs an incredibly well-done gastric bypass, and the response is not as expected. In this case, we can say that it is purely biology,” said Dr. Le Roux, who concluded the presentation by discussing the benefits of this approach for good patient counseling.

“When we talk about ‘obesities’ and not ‘obesity,’ we can also conduct our consultations more carefully by explaining to our patients that if they do not respond to treatment, it is not their fault, not because they did something wrong, but because of something that is not usually taken into account, such as the presence of comorbidities, or even personal characteristics and lifestyle, such as age and smoking,” said Dr. Le Roux.

This story was translated from the Medscape Portuguese edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

During a lecture at the 2024 International Congress on Obesity in São Paulo, Brazil, Dr. Carel Le Roux, a South African researcher, reflected on the Stratification of Obesity Phenotypes to Optimize Future Therapy (SOPHIA) project. The effort, of which Dr. Le Roux is a leader, involves using federated data and reframing obesity as a set of diseases, each with its own peculiarities and treatment needs.

A collaborative research initiative led by the European Union, the SOPHIA project is a public-private partnership that brings together healthcare professionals, universities, industry leaders, and patient organizations to rethink how we understand and treat obesity, considering factors beyond body mass index (BMI).

“We need to ask ourselves, ‘Is obesity a disease? Or, in fact, does ‘obesity’ refer to multiple diseases that lead to excess adipose tissue?’ ” Dr. Le Roux asked at the beginning of his presentation.

The researcher, who is also the director of the Obesity and Metabolic Medicine Group, stated that obesity can no longer be seen as a single homogeneous pathology but rather should be viewed as clinical conditions affecting various subpopulations that respond differently to treatments.

Patients are currently diagnosed with obesity based on BMI value or waist measurement, as recommended by current clinical guidelines, but this method contributes to treating obesity subtypes as if they were identical.

“By taking into account the patient’s specificities, we can identify individuals who are likely to progress rapidly with the disease and those who will respond well to targeted interventions,” said Dr. Le Roux, emphasizing that this approach also contributes to reducing public health system costs.

Researchers proposed creating a map that allows the visualization of the distinct characteristics of patients with obesity, such as the presence of associated diseases like hypertension and diabetes. One of the main challenges of the project was finding a way to share sensitive data among SOPHIA partners without compromising individual privacy. The solution was the creation of a federated database.

In practice, this system allows academic and industry partners to send data to a central server, which keeps them protected. “We wanted to reach the optimal point, where we can have maximum utility and maximum privacy protection using technology. Researchers can then obtain statistics, enabling the analysis of large data sets without compromising security,” Dr. Le Roux explained.

Most patients analyzed in the project fall into the main group, where “the higher the weight, the greater the risk” for associated diseases, he added. However, the project allows for specifically visualizing patients with alterations related to high blood pressure, liver function, lipid profile, blood glucose, and inflammation.

“Subclassifying diseases helps us better understand the various mechanisms by which these pathologies arise and why some individuals exhibit unexpected phenotypic patterns of increased susceptibility or resilience. For example, patients with inflammation changes have a much higher risk for developing type 2 diabetes, rheumatoid arthritis, and liver failure,” said Dr. Le Roux.

In addition to visualizing the associated diseases of each participant, SOPHIA, in which 30 partners in Europe, the Middle East, and the United States participate, also features treatment overlap, which allows researchers to track individual responses to the treatment.

“With this overlap, we confirm something that many know: When treating people with type 2 diabetes, whether through lifestyle changes, medication, or surgery, weight loss is lower. But, to our surprise, we found that patients with inflammation-related changes had greater weight loss. This finding tells us that some groups benefit more, and others less,” said Dr. Le Roux.

This analysis is particularly interesting when it comes to bariatric surgery, he continued. “Often, the surgeon performs an incredibly well-done gastric bypass, and the response is not as expected. In this case, we can say that it is purely biology,” said Dr. Le Roux, who concluded the presentation by discussing the benefits of this approach for good patient counseling.

“When we talk about ‘obesities’ and not ‘obesity,’ we can also conduct our consultations more carefully by explaining to our patients that if they do not respond to treatment, it is not their fault, not because they did something wrong, but because of something that is not usually taken into account, such as the presence of comorbidities, or even personal characteristics and lifestyle, such as age and smoking,” said Dr. Le Roux.

This story was translated from the Medscape Portuguese edition using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.