Medical Xpress news

Medical Xpress / A silent signaling network deep in the gut protects against inflammatory intestinal disorders, scientists find

Deep in the folds of the intestine, in microscopic pockets called crypts, a quiet surveillance system is always at work. Stem cells lining the gut wall are not just rebuilding tissue—they are listening and signaling. When ...

10 hours ago in Immunology
Medical Xpress / Oxytocin reverses anxiety-like behavior after three months of isolation in mice

Periods of prolonged social isolation have long been associated with difficult emotions and, in some cases, with the emergence of psychiatric symptoms, such as depression, anxiety, and difficulties connecting with others. ...

14 hours ago in Psychology & Psychiatry
Medical Xpress / Scientists develop first-of-its-kind antibody to block Epstein Barr virus

Fred Hutch Cancer Center scientists reached a crucial milestone in blocking Epstein Barr virus (EBV), a pathogen estimated to infect 95% of the global population that is linked to multiple types of cancer, neurodegenerative ...

Medical Xpress / Scientists discover why we know when to stop scratching an itch

When you scratch an itch, something tells your brain when to stop. That moment of relief, when scratching feels "enough," is not accidental. Scientists have now identified a key molecular and neural mechanism behind this ...

15 hours ago in Neuroscience
Medical Xpress / MRI antenna can boost image quality and shorten scan times—without changing existing machines

Magnetic resonance imaging (MRI) is one of medicine's most powerful diagnostic tools. But certain tissues deep inside the body—including brain regions and delicate structures of the eye and orbit that are of particular ...

7 hours ago in Radiology & Imaging
Medical Xpress / Why nighttime heat drives a surge in suicide-related calls to crisis lines in Louisiana

Extreme heat poses serious risks to physical health but can also trigger a mental health emergency for some people. While the link between heat and suicide is well-documented, the specific stressors that drive someone to ...

Feb 20, 2026 in Psychology & Psychiatry
Medical Xpress / Newly found immune cells link strep throat to psoriasis

A common strep throat infection can trigger guttate psoriasis by altering the behavior of key immune cells, according to a new study from Karolinska Institutet published in eBioMedicine. The findings suggest how an infection ...

Feb 20, 2026 in Immunology
Medical Xpress / 'Kick it while it's down' approach to cancer treatment could improve cure rates

A new study provides hope that smarter timing of cancer treatments could improve cure rates. The study's Principal Investigator, Dr. Robert Noble, Senior Lecturer at the Department of Mathematics, City, St George's, University ...

Feb 20, 2026 in Oncology & Cancer
Medical Xpress / Why chronic pain lasts longer in women: Immune cells offer clues

Chronic pain lasts longer for women than men, and new research suggests differences in hormone-regulated immune cells, called monocytes, may help explain why.

Feb 20, 2026 in Neuroscience
Medical Xpress / Astrocytes, not just neurons, found to drive fear memory signals in the amygdala

Picture a star-shaped cell in the brain, stretching its spindly arms out to cradle the neurons around it. That's an astrocyte, and for a long time, scientists thought its job was caretaking the brain, gluing together neurons, ...

Feb 20, 2026 in Neuroscience
Medical Xpress / Stunning new maps of myelin-making mouse brain cells advance understanding of nervous system disorders

Johns Hopkins scientists say they have used 3D imaging, special microscopes and artificial intelligence (AI) programs to construct new maps of mouse brains showing a precise location of more than 10 million cells called oligodendrocytes. ...

Feb 20, 2026 in Neuroscience
Medical Xpress / Adolescent cannabis use linked to doubling risk of psychotic and bipolar disorders

Adolescents who use cannabis could face a significantly higher risk of developing serious psychiatric disorders by young adulthood, according to a large study published in JAMA Health Forum. The longitudinal study followed ...

Feb 20, 2026 in Psychology & Psychiatry