Medical Xpress news
Medical Xpress / Supercentenarians have an abundance of cancer-killing immune cells
The human immune system has specialized cells called CD4 cytotoxic T lymphocytes (CD4 CTLs), which have been shown to kill tumor cells in some cancers. When a person gets sick, these cells multiply in a process called clonal ...
Medical Xpress / In Crohn's disease and ulcerative colitis, inflammation blocks its own healing
Why does inflammation persist in Crohn's disease and ulcerative colitis, even as the body is trying to bring it under control? Researchers in Kiel and the United States have identified a mechanism that offers a surprising ...
Medical Xpress / Turning brain neurons on and off with light: A reversible synaptic switch
A research team led by Professor Ji Won Um of the Center for Synapse Diversity and Specificity, Department of Brain Sciences, DGIST, in collaboration with a team led by Professor Alice Ting at Stanford University, has developed ...
Medical Xpress / World's largest psilocybin brain-imaging study maps how context reshapes psychedelic effects
A landmark five-year study by Monash University has found psychedelics reorganize brain patterns, giving clinicians powerful new insights into their therapeutic potential.
Medical Xpress / Cell-preservation technique could make CAR-T cell therapy more accessible
Immune cells that are engineered to attack cancer cells, known as CAR-T cells, are used to treat some types of blood cancer. However, only about 5% of hospitals in the United States can generate and deliver CAR-T cells to ...
Medical Xpress / For students, consistent exercise may matter more for mental health than intense workouts
Infrequent exercise is associated with a higher prevalence of common mental disorders such as depression and anxiety among higher education students in Norway, according to a study published in PLOS ONE by Michael Grasdalsmoen ...
Medical Xpress / Gut bacteria may transform spinach, beets and plant iron into protective compounds
Researchers at Karolinska Institutet have discovered that gut bacteria can convert dietary nitrate and iron into protective molecules that may reduce the risk of cardiovascular and metabolic diseases. The study, published ...
Medical Xpress / Most AI medical devices cleared for use were not tested on patient outcomes
A new analysis shows that, of 1,357 artificial intelligence (AI)-based medical devices authorized by the U.S. Food and Drug Administration (FDA) for use in patient care, only three had been tested on whether they actually ...
Medical Xpress / Newly found 'immune organ' inside skull directs brain defense
Researchers at Washington University School of Medicine in St. Louis have discovered lymph node-like structures in the skull bone marrow of mice for the first time and demonstrated that they act as rapid first responders ...
Medical Xpress / Merck and Moderna's tailored cancer drug curbs melanoma recurrence in trial
US drugmakers Merck and Moderna said Wednesday an experimental melanoma drug that delivers treatment tailored to a patient's specific tumor prevented the cancer from returning in a large clinical trial.
Medical Xpress / Study finds sustained benefit for people using Oregon psilocybin services
People participating in an Oregon Health & Science University-led study of state-regulated psilocybin services reported relief from symptoms of anxiety, depression and post-traumatic stress disorder—with almost two-thirds ...
Medical Xpress / Why do we get sleepy? How neurons control sleep drive
Why does staying awake inevitably make us sleepy? Researchers at the University of Basel, Switzerland, have identified neuronal populations in the brains of mice that become activated during prolonged wakefulness and are ...
