Medical Xpress news
Medical Xpress / Ultra-processed foods linked to notably higher prostate cancer risks
Ultra-processed foods (UPFs) account for nearly 60% of adults' and 70% of children's energy intake in the United States. These industrially manufactured products—such as soft drinks, packaged cereals and snacks, and processed ...
Medical Xpress / 3D lifespan map suggests mouse ovaries keep a constant share of eggs primed
As mice age, their total egg reserve collapses around tenfold. Yet, according to a new study published in Nature Aging, the proportion of eggs in the brief window where a follicle is shifting from dormant to growing stays ...
Medical Xpress / Doctors born abroad play major role in care for millions of patients in underserved U.S. communities
More than 22 million Medicare patients received care from doctors born outside the United States in 2024, according to an American Board of Internal Medicine (ABIM) study published today in JAMA.
Medical Xpress / New miniature microscope allows scientists to watch and control brain cells during natural movement
Researchers at the University of Colorado Anschutz and the University of Colorado Boulder have developed a miniature microscope that allows scientists to observe and activate individual brain cells during natural movement, ...
Medical Xpress / Testing finds 85% of everyday personal care products contain unlabeled chemicals with suspected health hazards
A new study of sunscreens, baby lotions, shampoos, soaps and other everyday products found that nearly all contained chemicals not disclosed on their labels. Most contained at least one unlabeled chemical with known or suspected ...
Medical Xpress / Scientists uncover cellular mechanism driving both rare childhood dementia and Alzheimer's disease
Researchers at the University of California San Diego and their colleagues have identified a key cellular pathway that drives brain degeneration in both a rare childhood disorder and the far more common Alzheimer's disease. ...
Medical Xpress / Air pollution-linked blood changes detected years before lung cancer diagnosis
A new study, published Tuesday in Nature Communications, found measurable changes in people's blood associated with exposure to air pollution and the subsequent development of lung cancer. The findings provide promising clues ...
Medical Xpress / Detection of optic nerve inflammation enables earlier multiple sclerosis diagnoses
Multiple sclerosis (MS) is the most common chronic autoimmune disease of the central nervous system. An early and accurate diagnosis is crucial for improving the effectiveness of treatment and reducing nerve damage. To standardize ...
Medical Xpress / An origami-inspired implant could monitor health from beneath the skin
The skin is the body's largest organ. It is a protective shield that keeps harmful pathogens out and vital fluids inside. These very properties make it a tough engineering challenge to design wearable health sensors because ...
Medical Xpress / Mapping how mental health risks emerge in AI chatbot conversations
Scientists at UCL have developed a framework for stress-testing how AI chatbots respond to vulnerable users, helping researchers identify weaknesses and test ways to make mental health interactions safer.
Medical Xpress / Protein secreted by immune cells may help drive brain aging
Brain-resident immune cells that have reached an old-age state called "senescence" secrete a protein that causes dysfunction in other brain cells, according to a study led by investigators at Weill Cornell Medicine. The discovery ...
Medical Xpress / How folic acid may protect a baby's developing brain and spinal cord
For more than 30 years, one piece of pregnancy advice has been remarkably consistent: Take folic acid. The reason is clear. Folic acid, or vitamin B9, can lower the risk of neural tube defects, serious birth defects that ...