Medical Xpress news

Medical Xpress / Solving a 15-year mystery: Scientists discover how gut bacteria toxin invades colon cells to trigger cancer

Since a landmark 2009 study, researchers have known that a common gut bacterium, Bacteroides fragilis, drives colon tumor formation, potentially leading to colorectal cancer, by secreting a toxin that damages the lining of ...

May 7, 2026
Medical Xpress / Garlic-derived compound shows potential to improve muscle health during aging

Can a compound derived from a common kitchen ingredient help support muscle health during aging? A new study suggests it can. The study reveals that S-1-propenyl-L-cysteine (S1PC), a bioactive compound found in aged garlic ...

May 7, 2026
Medical Xpress / Scientists finally see inside the 'black box' of depression treatment

Transcranial magnetic stimulation (TMS) is a noninvasive, FDA-approved therapy that uses brief magnetic pulses to treat depression, particularly in patients who do not respond to medication. Yet scientists have long struggled ...

May 7, 2026
Medical Xpress / AI language models struggle with basic hospital data tasks, study finds

A new study finds that large language models (LLMs), used with straightforward prompting, perform poorly on routine number-crunching tasks that hospital administrators depend on every day to track patients and allocate resources. ...

May 7, 2026
Medical Xpress / Leukemia stem cells cause treatments to fail, but findings open new avenues to overcome resistance

Scientists from the German Cancer Research Center (DKFZ) and the HI-STEM Stem Cell Institute have deciphered a key mechanism that contributes to treatment failure in acute myeloid leukemia (AML). They show that there are ...

May 7, 2026
Medical Xpress / Despite breakthroughs, many go without treatment for metastatic lung cancer

About half of people diagnosed with metastatic non-small-cell lung cancer never receive treatment, despite advances in options over recent decades that have created meaningful improvements in lifespan and quality of life ...

May 7, 2026
Medical Xpress / Driving data and vehicle sensors help detect early cognitive decline

With more older adults staying behind the wheel longer than ever, understanding how early cognitive changes affect driving has become increasingly important. In the United States, there are more than 50 million licensed drivers ...

May 7, 2026
Medical Xpress / One powerful treatment, two opposite outcomes: Psychedelic therapy may heal some patients while deeply unsettling others

Psychedelic-assisted therapy is the subject of renewed focus. It involves using psilocybin—a substance found in psychoactive fungi—or LSD to treat mental disorders. Numerous studies are currently underway, with talk rife ...

May 7, 2026
Medical Xpress / Study identifies new strategy to overcome immunotherapy resistance in colorectal cancer

Researchers at the Icahn School of Medicine at Mount Sinai and the Mount Sinai Tisch Cancer Center have identified a promising new strategy to overcome resistance to immunotherapy in colorectal cancer, one of the leading ...

May 7, 2026
Medical Xpress / Scientists take crucial step in developing world's first measles treatment

Scientists at La Jolla Institute for Immunology (LJI) are the first in the world to characterize human antibodies capable of neutralizing measles virus. These antibodies bind to key sites on measles virus and prevent the ...

May 7, 2026
Medical Xpress / Cancer cells are better able to resist treatments when they have an abnormal number of chromosomes

A new study led by NYU Langone Health researchers has found that cancer cells are better able to resist treatments when they have an abnormal number of chromosomes, the DNA strands wound up in bundles that control which genetic ...

May 7, 2026
Medical Xpress / Study finds no benefit to miniature heart pump during complex stent procedures

Results from the first randomized trial of Impella pumps during complex stent procedures, published in the New England Journal of Medicine, have shown that the pumps offer no significant benefit to patients compared to standard ...

May 7, 2026