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 / 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 / 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 / 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 / Timing exercise to match body clock chronotype may lower cardiovascular disease risk
Timing exercise to match body clock chronotype—the natural predisposition to morning or evening alertness—may lower cardiovascular disease risk among those who are already vulnerable, suggests research published in the open ...
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 / How smell gets recognized so fast: Mouse brains appear to decide in the first 50 milliseconds
Mice make use of rapid nerve cell interactions in the brain's smell center to distinguish one odor from another, a new study shows. Both mice and humans can rapidly identify odors, researchers say, in a small fraction of ...
Medical Xpress / Taking a closer look at immune 'memory' could spur progress in the fight against lethal illnesses
The average human has about 1.8 trillion immune cells. These cells patrol the body for bacteria, viruses, cancers, and other threats. Vaccines enhance this security system by teaching our immune cells to target specific pathogens. ...
Medical Xpress / A new way to determine which patients will respond best to bowel cancer treatment
Nearly 10,000 cases of advanced bowel cancer are diagnosed in England each year, with cases in young adults rising. There are limited options for treating advanced bowel cancer. Scientists have now developed an AI-powered ...
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 ...
