Medical Xpress news

Medical Xpress / Middle-aged men are most vulnerable to faster aging due to 'forever chemicals,' study finds

PFAS have wide-ranging toxic effects. Now, researchers have found that two non-legacy PFAS, namely perfluorononanoic acid (PFNA) and perfluorooctanesulfonamide (PFOSA), appear to speed up biological aging in middle-aged men, ...

1 hour ago in Genetics
Medical Xpress / Frequently distracted? Your brain rhythms may be to blame

Scientists may have new answers to why pop-ups or notifications grab our attention. Turns out our attention is on a cycle, shifting seven to 10 times per second. This rhythmic occurrence may be crucial for survival, as it ...

6 hours ago in Neuroscience
Medical Xpress / Differing immune responses in infants may explain increased severity of RSV over SARS-CoV-2

Young infants hospitalized with respiratory syncytial virus (RSV) often become much sicker than those infected with SARS-CoV-2, the virus that causes COVID-19. In a study published in Science Translational Medicine, scientists ...

6 hours ago in Immunology
Medical Xpress / Surprising culprit leads to chronic rejection of transplanted lungs and hearts

Despite advances in the field of organ transplantation, long-term organ rejection that can become apparent a decade or more after a heart or lung transplant remains a common problem for patients. This chronic organ failure ...

Medical Xpress / How ketogenic diets help prevent seizures

A ketogenic diet—one that is high in fat and extremely low in carbohydrates—has been known for decades to reduce seizures in some epilepsy patients. But how the highly restrictive diet achieves these effects has not previously ...

Medical Xpress / Civilians face increasing harm from deadly explosive weapons, 17-country study finds

A University of Queensland study has found that almost 90% of people killed and injured by landmines and similar weapons are civilians. Dr. Stacey Pizzino from UQ's School of Public Health, together with her research team, ...

7 hours ago in Health
Medical Xpress / Keeping neurons on the right path: Scientists identify key driver of cortical layering during brain development

The cerebral cortex, the brain's outermost region responsible for higher cognitive functions, depends on a highly ordered, layered structure. Its proper development requires newly generated neurons to migrate to precise locations ...

8 hours ago in Neuroscience
Medical Xpress / Aspirin not a quick fix for preventing bowel cancer, review finds

Daily aspirin use does not offer a quick or reliable way to prevent bowel cancer in the general population and carries immediate risks of serious bleeding, a new Cochrane review finds.

5 hours ago in Medications
Medical Xpress / In Rett syndrome, leaky brain blood vessels traced to microRNA

MIT researchers have discovered that two common genetic mutations that cause Rett syndrome each set off a molecular chain of events that compromises the structural integrity of developing brain blood vessels, making them ...

9 hours ago in Neuroscience
Medical Xpress / Vitamin B3 therapy offers hope for fatal childhood disease

Scientists at Gladstone Institutes have flipped the traditional approach to finding potential treatments for deadly diseases. Instead of starting with a disease and hunting for a cure, they began with vitamins and systematically ...

Medical Xpress / Women show greater tau buildup and faster cognitive decline than men in Alzheimer's

Tau proteins act like the brain's maintenance crew, helping maintain the structure and proper function of brain cells. In neurodegenerative diseases such as Alzheimer's, the tau proteins can form tangles that disrupt normal ...

12 hours ago in Neuroscience
Medical Xpress / Cell signaling step sharpens understanding of how the body responds to exercise's energy demands

Researchers have investigated the role of a certain enzyme in regulating energy in muscle and exercise performance for decades, but a new study by Virginia Tech scientists has identified more precisely than ever how this ...

11 hours ago in Endocrinology & Metabolism