Medical Xpress news
Medical Xpress / Brain circuit links memory to hearing, revealing how learned sounds guide behavior
Short-term memories are thought to be formed deep within the brain in structures such as the hippocampus, but little is known about how and where memory-related information is kept in the brain or the process of drawing on ...
Medical Xpress / Alzheimer's gene map expands to 91 loci, revealing 16 previously unknown risk regions
An international collaboration of genetic researchers has identified more than 90 genetic regions associated with the risk of Alzheimer's disease and related dementias. The large-scale meta-analysis reveals new biological ...
Medical Xpress / Newfound 'switchboard' helps brain form new memories without forgetting older ones
The brain may reuse some cells to store many different memories without mixing them up with or erasing older memories, a new study in mice suggests. Led by NYU Langone Health researchers, the study revealed that about 1 in ...
Medical Xpress / Immune barrier may explain why mRNA shots struggle to block nasal infection
A consistent biological barrier that stops the immune system from making the antibodies most needed to protect the nose and throat from respiratory viruses has been identified. The discovery, led by researchers from the University ...
Medical Xpress / Even years after stroke, spinal cord stimulation could improve arm function
University of Pittsburgh School of Medicine researchers report the final outcomes of a pioneering pilot clinical trial using electrical stimulation of the spinal cord to improve arm and hand mobility in people with chronic ...
Medical Xpress / How cells fight infection from the inside: Newly identified ADX pathway may broaden understanding of immunity
When thinking of the immune system, most people imagine white blood cells putting up a fight against invading germs in the bloodstream. But now, in research published in Molecular Cell, scientists detail a separate but equally ...
Medical Xpress / Motherhood leaves lifelong brain marks via dopamine-linked epigenetic switch, mouse study suggests
Becoming a mother changes the brain not just temporarily, but for life. Pregnancy and the postpartum period trigger lasting changes in the maternal brain through the brain chemical dopamine, producing long-term benefits to ...
Medical Xpress / After early pregnancy loss, 'what if' thinking affects 72% within first week
When a person goes through a traumatic experience, they often find themselves thinking that what happened could have been different or even avoided. This process, known as counterfactual thinking, is an automatic psychological ...
Medical Xpress / AI decodes epilepsy signals in brain waves before seizures appear
Epilepsy isn't always easy to diagnose. Seizures often don't occur during routine brain-wave recordings (EEGs), leaving doctors without the direct observation they need to make a clear diagnosis. University of Delaware researchers ...
Medical Xpress / Early diet may shape how the teenage brain develops
A major new review led by Swansea University has highlighted growing evidence that diet in the early years of life may shape how well the brain develops, with effects that can still be seen in adolescence. Published in Advances ...
Medical Xpress / Fear memories form differently in male and female brains, study finds
Women are twice as likely as men to develop post-traumatic stress disorder (PTSD)—and new research may offer a biological clue as to why. A Virginia Tech study found that the female brain forms fear memories using a molecular ...
Medical Xpress / Heart elasticity may hinge on a hidden genetic switch
The human heart must constantly adapt to changing demands—a task that requires tightly coordinated molecular shuffling in heart cells. One of the key regulators of this process is RBM20, a protein that controls an editing ...
