Medical Xpress news
Medical Xpress / Parkinson's-linked α-synuclein blocks protein transport in neurons, disrupting cells' waste recycling
Parkinson's disease affects more than 10 million people worldwide. The disease is characterized by the buildup of abnormal clumps of the protein alpha-synuclein inside brain cells, but scientists have long struggled to understand ...
Medical Xpress / Deep learning refines how bionic eyes communicate with the brain
Researchers from three institutions, including UC Santa Barbara, have demonstrated that artificial intelligence has the potential to make future visual prostheses, like a bionic eye, more precise, predictable and responsive ...
Medical Xpress / Radiopharmaceutical may benefit patients with metastatic prostate cancer sooner
Earlier use of a targeted radionuclide therapy delays metastatic prostate cancer progression when administered as part of a trio of drugs, according to a Phase III clinical trial led by Weill Cornell Medicine, NewYork-Presbyterian, ...
Medical Xpress / Rising temperatures linked to higher risk of homicide and suicide in Mexico and Brazil
As temperatures on Earth continue to rise, some researchers have been trying to understand how climate change influences people's physical and mental health. Some past studies have found an association between warmer weather ...
Medical Xpress / Ketamine triggers morning cortisol surge tied to fewer suicidal thoughts—but the link remains uncertain
In 1970, ketamine was approved as an anesthetic. It works by blocking receptors in the brain. Suicidal tendencies are among the dangers that accompany severe depression. Doctors have found that a low dose of ketamine, much ...
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 / 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 / Why the body's inflammatory alarm misfires in familial Mediterranean fever
Familial Mediterranean fever (FMF) is a hereditary autoinflammatory disease in which the body's own immune system overreacts to minimal or inappropriate stimuli, producing recurrent attacks of fever and painful inflammation. ...
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 / 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 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 / 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.
