Medical Xpress news

Medical Xpress / The brain may use dopamine to bend time and shape memory

Ever heard of getting a "dopamine hit" from something you enjoy? These exciting moments also appear to influence memory, although perhaps not in the way you'd expect.

14 hours ago
Medical Xpress / Enzyme shields triple-negative breast cancer cells from replication stress

Researchers at The University of Texas MD Anderson Cancer Center have identified a key enzyme—RNase H2—that helps triple-negative breast cancer (TNBC) cells survive high levels of DNA replication stress. Because many breast ...

9 hours ago
Medical Xpress / Many genes have been linked to autism—but a new study suggests it may be their path to the brain that matters

In recent years, scientists have identified hundreds of different genes associated with autism, a burst of discovery that has prompted a new and perplexing question: how can so many different genes produce the same or very ...

15 hours ago
Medical Xpress / Cranberry juice may boost UTI antibiotics

More than 400 million people experience a urinary tract infection every year, and some epidemiological studies estimate that more than half of all women will develop at least one in their lifetime. Most UTIs are caused by ...

17 hours ago
Medical Xpress / Ultrafast MRI uncovers brain signal direction: New scan may help decode autism, Alzheimer's and hallucinations

Researchers at the Champalimaud Foundation in Lisbon have for the first time managed to identify with an imaging technique whether nervous impulses in the brain of rats are flowing in a "bottom-up" (feedforward), carrying ...

15 hours ago
Medical Xpress / Cannabis leads US microdosing, with 24.1 million adults reporting lifetime use

Researchers from University of California San Diego have found that microdosing—taking very small amounts of psychoactive substances—is more common among U.S. adults than previously recognized, with cannabis leading by a ...

9 hours ago
Medical Xpress / One missing metabolic step can turn cancer's DNA-copying machinery into a lethal weakness

Loss of an enzyme necessary for a process called lipoylation disrupts the way cancer cells copy their DNA, increasing their vulnerability to a class of anticancer drugs known as PARP inhibitors, a study led by UT Southwestern ...

16 hours ago
Medical Xpress / X-linked liver enzyme may explain why women and men process cholesterol differently

A new study from Karolinska Institutet shows that an enzyme in the liver may partly explain sex differences in the body's handling of cholesterol and the risk of developing atherosclerosis. The research, published in Nature ...

18 hours ago
Medical Xpress / Two to tango: Study shows dancers' brains sync up as they move together

Scientists at the University of Colorado Boulder have discovered something that experienced ballroom dancers have long known: When dancers are in tune with each other, their brains may sync up, helping them move as one.

13 hours ago
Medical Xpress / Managing weight may slow brain aging within two years, 24-year data suggest

Being overweight may lead to accelerated cognitive decline, according to new research from the University of Georgia. The paper is published in the Journal of Neurology.

16 hours ago
Medical Xpress / Family data reveal two genetic paths to childhood depression and anxiety

Many common mental health disorders, including depression and anxiety, are associated with a tendency to internalize problems or, in other words, to direct feelings inwards instead of expressing them and sharing them with ...

May 3, 2026
Medical Xpress / Creatine is claimed to benefit body and mind: The potential benefits and limitations of the popular supplement

Creatine, a compound often associated with gym-goers and athletes, has long been touted as a performance-enhancing supplement. But beyond the hype, what does science actually reveal about its effects on the body and mind?

May 3, 2026