Digital Therapeutic Content for Substance Use Disorder Treatment: Development and Evaluation Study
Barriers and Facilitators in the Implementation of the Systematic Medical Appraisal, Referral, and Treatment (SMART) Mental Health Digital Intervention in Rural India: Mixed Methods Process Evaluation Study
Fraudulent citations, blamed on AI hallucinations, are becoming more common in research papers
Citations in academic papers are intended to ground research in the work that preceded it, over time creating something of a family tree explaining the roots of ideas, protocols, and studies.
But a growing number of these citations lead to dead ends. “Fabricated” citations that do not reference real papers are spreading in the literature, polluting the public record of science, a new study published Thursday in the Lancet shows. Tools using generative AI are likely to blame, say the Columbia University researchers who authored the paper.
Key takeaways from WHO briefing on hantavirus cruise ship outbreak
The MV Hondius, the cruise ship that has garnered global attention because of an apparent outbreak of person-to-person spread hantavirus infections, is on the move. At the request of Tedros Adhanom Ghebreyesus, the World Health Organization’s director-general, Spain has agreed to let the ship dock off Tenerife, in the Canary Islands. The ship is expected to arrive on Sunday.
This outbreak — the first time hantavirus has been suspected of transmitting on a cruise ship — is an evolving situation. It’s also one that is going to take weeks to resolve, because of the long incubation period of hantaviruses. And it could be months before scientists piece together how the virus got on the boat and whether all the subsequent cases were people infected through contact with other people or whether rodents — which are known to carry hantaviruses — that were on board played any part.
Oral Small-Molecule GLP-1s Linked to Deep Brain Activity and Reduced Cravings in Mice
Interest in glucagon-like peptide 1 receptor agonists (GLP-1s) continues to surge due to their effectiveness in reducing body weight and improving metabolic outcomes. This includes interest in small molecule oral GLP-1s which are more bioavailable and more easily manufactured than their injectable counterparts.
Now data from a new study in mice performed by scientists at the University of Virginia shows that this emerging class of weight-loss drugs suppress hedonic eating by modulating a reward circuit deep in the brain that is separate from previously described mechanisms that broadly affect appetite. The scientists believe that this pathway could be an avenue by which GLP-1s treat other dysfunctions in reward processing such as substance use disorders.
Details of the National Institutes of Health-funded study were published this week in a Nature paper titled “A brain reward circuit inhibited by next-generation weight-loss drugs in mice.” In it, the team reported that they investigated the small-molecule GLP-1s including Eli Lilly’s recently approved drug orforglipron, also known by the brand name Foundayo, as well as danuglipron, an oral GLP-1 that was being developed by Pfizer until the company decided to discontinue its development in 2025.
Previous studies that explored the effects of larger peptide GLP-1s such as semaglutide in the brain have found that they suppress hunger-driven eating by engaging networks in the hypothalamus and hindbrain. What has been less clear is the mechanism by which small-molecule GLP-1s work. “As the accessibility of these medications continues to rise and patient uptake increases, it’s crucial that we understand the neural mechanisms underlying the effects we’re seeing,” said Lorenzo Leggio, MD, PhD, clinical director of NIH’s National Institute on Drug Abuse.
The current study gets scientists one step closer to that goal. According to the paper, the scientists first used gene editing to modify the GLP-1 receptors of mice to make them more humanlike. They then administered orforglipron or danuglipron to the mice, and identified brain regions where the drugs induced activity. The results showed that in addition to inducing activity in familiar pathways, the drugs also triggered the central amygdala, a region associated with desire that is deeper in the brain than scientists previously thought GLP-1s could directly reach. Further testing showed that once activated, the central amygdala reduced the release of dopamine into key hubs of the brain’s reward circuitry during hedonic feeding.
“We’ve known that GLP-1 drugs suppress feeding behavior driven by energy demand,” said co-corresponding author Ali Guler, PhD, a professor of biology at the University of Virginia. “Now it seems oral small-molecule GLP-1s also dial back eating for pleasure by engaging a brain reward circuit.”
Given the effect of these drugs on eating for pleasure, future studies could explore whether small-molecule GLP-1s can also suppress cravings for other addictive substances. It is a question that the team hopes to explore in follow up studies focused specifically on substance use disorder.
The post Oral Small-Molecule GLP-1s Linked to Deep Brain Activity and Reduced Cravings in Mice appeared first on GEN – Genetic Engineering and Biotechnology News.
Autism Screening Proposed for Children with Epilepsy
Children with epilepsy are up to 10 times more likely than others to also have autism, according to research that exposes the scale of the association between the two conditions.
The findings, in more than 30,000 children, stress the importance of screening for developmental concerns among those with epilepsy, so support can be delivered as early as possible.
The study, Developmental Medicine & Child Neurology, revealed that girls with autism spectrum disorder (ASD) were more likely than boys to also have epilepsy.
Higher rates of intellectual disability were also seen in children with autism who additionally had epilepsy, and they were also diagnosed with the neurodiversity at an earlier age.
“Our findings emphasize the importance of screening for autism in this population to support earlier diagnosis and timely intervention, both of which are key to improving long-term outcomes,” said senior investigator Elaine Wirrell, MD, from the Mayo Clinic.
ASD and epilepsy are complex disorders of neuronal connectivity that frequently co-occur because of shared molecular and biological mechanisms.
While the increased risk of ASD in children with epilepsy is well documented, there are gaps in knowledge around its incidence and prevalence, and risk factors for their co-occurrence.
To investigate further, Wirrell and team studied the medical records of 30,490 children in Olmsted County, Minnesota, of whom 257 (0.84%) were diagnosed with epilepsy before the age of 19 years.
They found that children with epilepsy were more likely have ASD across all three research and clinical definitions compared with other children, with this likelihood increased between six and 10-fold.
The prevalence was a corresponding 21.4% versus 3.2% using broad research criteria, 14.0% versus 1.6% across stricter research criteria, and 7.9% versus 0.7% for a clinical diagnosis.
Among children with autism, those also with epilepsy were more likely to have a lower IQ on standardized testing than those in whom epilepsy was absent (56.5% versus 15.4%). Specifically, an IQ of less than 70 was observed in 57.4% of children with co-occurring epilepsy and autism compared with only 15.4% autism alone.
Those with autism and epilepsy were also more often female than those with autism alone (38.2% versus 25.8%), and were identified with autism at a younger age, at a mean of seven years and five months versus eight years and eight months).
“These insights underscore the critical need for comprehensive and early screening protocols to better address and manage the intersection of autism and epilepsy, ensuring timely interventions and tailored support for affected individuals,” the researchers concluded.
The post Autism Screening Proposed for Children with Epilepsy appeared first on Inside Precision Medicine.
Seaport’s IPO adventure, obesity pill battles, and Makary’s troubles
On this week’s episode of “The Readout LOUD,” we chat with Seaport Therapeutics CEO Daphne Zohar, fresh off the biotech’s successful IPO. Plus, Elaine, Allison, and Adam chat about this week’s notable news, including the obesity pill battle between Eli Lilly and Novo Nordisk, a Phase 3 study win for Cytokinetics, and FDA Commissioner Marty Makary’s White House troubles.
Oh, by the way, this is the 400th episode of your favorite biotech podcast.
Science is becoming less disruptive. Is an aging workforce to blame?
Physicist Albert Einstein, widely regarded as one of the most prolific scientists of the past century, conducted much of his transformative work at the beginning of his career, before spending years defending his theories against the burgeoning field of quantum mechanics.
A new study shows that Einstein is not alone, and that most researchers begin their careers conducting their more disruptive work — overturning conventional wisdom and forging paths of their own — but as they age, they tend to abandon that groundbreaking energy. Instead, many become adept at connecting previously unlinked ideas. The paper, published Thursday in Science, helps offer an explanation of a trend that has increasingly worried scholars of science policy and innovation: that the pace of discovery has slowed in recent years.

