Medical Xpress news

Medical Xpress / Key path to Alzheimer's-like brain damage starts outside the brain

Immune cells that normally protect the body from damage by attacking foreign or infected cells are found in the brains of patients with Alzheimer's disease and related disorders at much higher levels than in healthy brains. ...

Sep 3, 2026
Medical Xpress / Stopping chronic pain before it starts: Surprising biological pathway may play key role

Chronic pain is one of medicine's most stubborn puzzles. A sprained back, a surgical incision or a pinched nerve heals—and yet, for millions of people, the pain never fully goes away. Why some injuries fade into memory while ...

Sep 3, 2026
Medical Xpress / Five subtypes of common liver disease discovered—including rapidly progressing genetic forms

A liver disease affecting nearly 30% of adults worldwide is not a single illness but five biologically distinct subtypes, Mayo Clinic researchers have found. Each carries different risks for heart disease, liver failure, ...

Sep 3, 2026
Medical Xpress / More frequent cannabis use linked to poorer mental health

More frequent cannabis use is associated with fewer days of good mental health among adults, particularly men, according to a study co-authored by a University of Miami Business School professor.

Sep 3, 2026
Medical Xpress / Neural networks reveal how experience shapes learning in both brains and machines

A new study has used a type of machine learning called a neural network to reveal how different kinds of training can change how learning happens—both in machines and in living brains.

Sep 3, 2026
Medical Xpress / How severe illness during pregnancy sometimes alters neurodevelopment

Neurodevelopmental conditions, which include autism spectrum disorder, ADHD (attention-deficit/hyperactivity disorder) and more, affect around 10% of the American population. Despite their prevalence, it has remained difficult ...

Sep 3, 2026
Medical Xpress / Some hair loss in men is linked to weight loss drug use

Men already genetically at risk for the most common form of hair loss have a 7% added risk of losing their hair if they use drugs like Ozempic, Wegovy and Zepbound for type 2 diabetes and obesity, a new study shows.

Sep 3, 2026
Medical Xpress / Study uncovers why some immunotherapy-treated tumors may grow faster

A new Northwestern Medicine study has uncovered a biological mechanism that may explain why a subset of tumors unexpectedly grows at an accelerated rate after being treated with certain immunotherapies, according to findings ...

Sep 3, 2026
Medical Xpress / New disease gene discovery provides answers to families

Ōtākou Whakaihu Waka researchers have helped identify the cause of a previously unrecognized neurodevelopmental disorder. Dr. Meghan Mulligan, of the Department of Biochemistry, says the finding has given people around the ...

Sep 3, 2026
Medical Xpress / Scientists uncover shared biology behind profound fatigue in five major illnesses

A shared biological mechanism that helps explain chronic exhaustion in conditions including long COVID and PTSD has been identified by researchers at the University of East Anglia and Oxford BioDynamics. The paper, published ...

Sep 2, 2026
Medical Xpress / Scientists discover how fructose may help drive obesity

High-fructose corn syrup is just one of many food additives linked to obesity. It is typically found in sweetened beverages and processed foods and is added to enhance flavor and sweetness. However, exactly how it contributes ...

Sep 2, 2026
Medical Xpress / Migraine treatment gets a rethink: New guide prioritizes patient voice and choice

A migraine headache can easily bring someone's usual day to a halt. The intense throbbing pain, usually on one side of the head, often comes with nausea, vision disturbances and light sensitivity. Preventive medicines work ...

Sep 2, 2026