Medical Xpress news

Medical Xpress / Largest study of pregnancy sickness uncovers six new genetic links

The USC research team that recently identified the hormone-encoding gene GDF15 as a key driver of pregnancy sickness has identified nine additional genes linked to its most severe form, hyperemesis gravidarum (HG). Six of ...

Apr 14, 2026
Medical Xpress / People who consume ultra-processed foods have worse muscle health, study suggests

Researchers found that a diet high in ultra-processed foods is associated with higher amounts of fat stored inside thigh muscles, regardless of calorie or fat intake, physical activity or sociodemographic factors in a population ...

Apr 14, 2026
Medical Xpress / Popular AI chatbots are confidently dispensing medical misinformation, analysis shows

A substantial amount of medical information provided by five popular chatbots is inaccurate and incomplete, with half (50%) of the responses problematic: 30% were somewhat, and 20% were highly problematic. These are the results ...

Apr 14, 2026
Medical Xpress / Why fasting can lead to a longer lifespan

Restricting calories has long been recognized as a powerful way to live longer, with periods of intermittent fasting proving more effective than a steady diet. However, the mechanism behind this phenomenon has been unclear. ...

Apr 14, 2026
Medical Xpress / New drug doubles 1-year survival in pancreatic cancer trial

Pancreatic cancer is one of the deadliest cancers and among the hardest to treat, with most patients surviving less than a year after diagnosis. But a new drug developed at Northwestern University may soon help patients live ...

Apr 14, 2026
Medical Xpress / Parental depression timing may shape adult children's mental health for decades

A new Yale study shows how the timing of depression in mothers and fathers affects mental health in their adult children. This includes influences on depression, anxiety, and psychotic disorders.

Apr 14, 2026
Medical Xpress / Multiple myeloma cells adapt after immunotherapy, helping explain why many patients relapse

Multiple myeloma is the second most common blood cancer in adults. It starts in the white blood cells that are responsible for creating antibodies that help the body fight infections. Once the myeloma cells begin to multiply, ...

Apr 14, 2026
Medical Xpress / Neurons don't run on sugar alone: Hidden fat droplets help drive brain signaling, appetite and weight control

The brain is the body's command center, and neurons are the workhorses that carry out its commands. They transmit signals that regulate many bodily functions, including key metabolic processes such as appetite, body weight ...

Apr 14, 2026
Medical Xpress / Researchers discover what may be the root cause of preeclampsia—and how to fix it

Preeclampsia is a life-threatening pregnancy complication that affects roughly 1 in 10 pregnancies worldwide and, in the United States alone, around 5%–8% of pregnancies. The condition can lead to severe, long-term health ...

Apr 14, 2026
Medical Xpress / Silent B-cell mutations may build for years before thyroid autoimmunity appears

New research suggests that autoimmune diseases may be driven by DNA mutations in immune cells that remove the natural brakes on the immune system. It reveals a previously hidden role for somatic mutations—DNA changes acquired ...

Apr 14, 2026
Medical Xpress / A less invasive heart valve fix shows strong early results for older high-risk patients

A national study led by investigators from Cedars-Sinai Health Sciences University found that transcatheter tricuspid valve replacement, or TTVR, delivered strong early results in real-world practice. Patients treated with ...

Apr 14, 2026
Medical Xpress / New study identifies a key brain circuit for spatial memory in mice

A team led by the Institute for Neurosciences (IN), a joint center of the Spanish National Research Council (CSIC) and Miguel Hernández University of Elche (UMH), has identified a brain circuit essential for spatial memory. ...

Apr 14, 2026