Medical Xpress news
Medical Xpress / Blood test can predict Alzheimer's disease progression years before symptoms or brain scan changes
A study by investigators at Mass General Brigham has found that a blood test of plasma phosphorylated tau 217 (pTau217), an Alzheimer's disease biomarker, can predict the progression of amyloid PET scan changes and cognitive ...
Medical Xpress / People who consume ultra-processed foods have worse muscle health, study suggests
Researchers found that a diet high in ultra-processed foods is associated with higher amounts of fat stored inside thigh muscles, regardless of calorie or fat intake, physical activity or sociodemographic factors in a population ...
Medical Xpress / Why fasting can lead to a longer lifespan
Restricting calories has long been recognized as a powerful way to live longer, with periods of intermittent fasting proving more effective than a steady diet. However, the mechanism behind this phenomenon has been unclear. ...
Medical Xpress / Neurons don't run on sugar alone: Hidden fat droplets help drive brain signaling, appetite and weight control
The brain is the body's command center, and neurons are the workhorses that carry out its commands. They transmit signals that regulate many bodily functions, including key metabolic processes such as appetite, body weight ...
Medical Xpress / Largest study of pregnancy sickness uncovers six new genetic links
The USC research team that recently identified the hormone-encoding gene GDF15 as a key driver of pregnancy sickness has identified nine additional genes linked to its most severe form, hyperemesis gravidarum (HG). Six of ...
Medical Xpress / Base editing repairs mutation and liver function in mouse model of Zellweger spectrum disorder
In 2025, baby KJ Muldoon became the first person to receive a personalized gene editing treatment, which likely saved his life. But the scientific advances that made the groundbreaking treatment possible were years in the ...
Medical Xpress / Silent B-cell mutations may build for years before thyroid autoimmunity appears
New research suggests that autoimmune diseases may be driven by DNA mutations in immune cells that remove the natural brakes on the immune system. It reveals a previously hidden role for somatic mutations—DNA changes acquired ...
Medical Xpress / A less invasive heart valve fix shows strong early results for older high-risk patients
A national study led by investigators from Cedars-Sinai Health Sciences University found that transcatheter tricuspid valve replacement, or TTVR, delivered strong early results in real-world practice. Patients treated with ...
Medical Xpress / Researchers discover what may be the root cause of preeclampsia—and how to fix it
Preeclampsia is a life-threatening pregnancy complication that affects roughly 1 in 10 pregnancies worldwide and, in the United States alone, around 5%–8% of pregnancies. The condition can lead to severe, long-term health ...
Medical Xpress / New drug doubles 1-year survival in pancreatic cancer trial
Pancreatic cancer is one of the deadliest cancers and among the hardest to treat, with most patients surviving less than a year after diagnosis. But a new drug developed at Northwestern University may soon help patients live ...
Medical Xpress / New study identifies a key brain circuit for spatial memory in mice
A team led by the Institute for Neurosciences (IN), a joint center of the Spanish National Research Council (CSIC) and Miguel Hernández University of Elche (UMH), has identified a brain circuit essential for spatial memory. ...
Medical Xpress / Ultrasensitive test reveals evidence of previously undetected tuberculosis in hospital patients
Researchers at Boston University have discovered an unexpectedly high prevalence of Mycobacterium tuberculosis DNA (TB DNA) in patients hospitalized in Boston, suggesting that tuberculosis disease may be significantly underdiagnosed ...
