Medical Xpress news
Medical Xpress / D-serine accelerates gastric tumor growth by suppressing killer T cells
One of the crucial steps in cancer proliferation is evading killer immune cells. Cancer cells use a variety of signaling molecules to evade the immune system. Immune checkpoint inhibitor (ICI) therapy interferes with some ...
Medical Xpress / Newer AI models still reproduce racial and gender stereotypes in medicine
Flinders University researchers have evaluated two next-generation reasoning large language models (LLMs)—o3-mini and DeepSeek-R1—and found that when asked to describe fictional patients with common medical conditions, the ...
Medical Xpress / New brain model suggests how regional chemistry shapes large-scale neural activity
Researchers have developed a computer model of the human cortex that links its microscopic chemistry to its brain-wide patterns of activity, providing new evidence that regional differences in receptor density help shape ...
Medical Xpress / Cells in breast tumor microenvironment may reveal who benefits most from hormone treatment
The types of cells in the microenvironment of a breast tumor may affect how well the hormone therapy tamoxifen works over the long term. A study from Karolinska Institutet, published in BMC Medicine, shows this. The findings ...
Medical Xpress / New pulse oximeter adapts to skin color
For decades, pulse oximeters have been among medicine's most familiar instruments. Clip one onto a finger, and within seconds it reports how much oxygen is in your blood, a vital indicator of health.
Medical Xpress / Wildfires now the dominant contributor to unhealthy levels of air pollution for pregnant women in the US
Wildfires are well-known health risks. Now, in a new Frontiers in Environmental Health study, researchers in the U.S. have—for the first time—evaluated how prenatal PM2.5 exposure has changed over space and time on a national ...
Medical Xpress / FLT3 inhibitors trigger ferroptosis, exposing new weakness in acute myeloid leukemia
A study published in Nature Cell Biology reports a new vulnerability in acute myeloid leukemia (AML) that might lead to novel therapies to treat the cancer while minimizing harm to normal cells. Researchers at Baylor College ...
Medical Xpress / A precise neuronal mechanism allows the brain to plan future routes to remembered goals
When humans and other animals move through familiar or unfamiliar environments, their brains rely on numerous intricate neural processes to decide which path to take next. Past studies have identified a specific population ...
Medical Xpress / Deadly Candida auris hides in hair follicles by rewiring skin immunity
Since its discovery in Japan in 2009, a deadly fungus has emerged in hospitals around the world. The pathogen, known as Candida auris, lives silently on the skin. But it can be deadly if it reaches the bloodstream, killing ...
Medical Xpress / Alzheimer's-linked tau disrupts mitochondria, reversing electron flow in nerve cells
A protein named tau, which has been strongly implicated in the world's No. 1 cause of dementia—Alzheimer's disease—and several other neurodegenerative disorders, may spur these diseases in a way that differs greatly from ...
Medical Xpress / Common midlife vascular risk factors may cut dementia-free life by up to 13 years
A new study, published in Neurology Open Access, shows an association between three common vascular risk factors and the amount of dementia-free time people experience after age 55. The study hints that dementia is not inevitable ...
Medical Xpress / Trauma analysis finds brain injuries more common among e-scooter riders than motorcyclists
E-scooter riders in England and Wales may face a higher risk of brain and internal organ injuries than motorcyclists and cyclists, according to a study published in Scientific Reports. The authors recommend increasing e-scooter ...
