Medical Xpress news

Medical Xpress / COVID-19 virus test sensitivity varies with body's circadian rhythm, according to research

Throughout the COVID-19 pandemic, health care practitioners have relied on COVID-19 testing to tell them what safety precautions to follow with each patient. Carl Johnson, Cornelius Vanderbilt Professor of Biological Sciences, ...

Medical Xpress / Two reasons why cancers thrive in chromosomal chaos

Writing in EMBO reports, researchers at University of California San Diego School of Medicine and Moores Cancer Center at UC San Diego Health describe how a pair of fundamental genetic and cellular processes are exploited ...

5 hours ago in Oncology & Cancer
Medical Xpress / Action video games make players better learners of visual and memory tasks

Playing video games that are heavy on action can make you better at some new tasks. New research reveals that these games are helping by teaching players to be quicker learners.

5 hours ago in Neuroscience
Medical Xpress / Cartography of the visual cortex: Charting a new course for the organization of visual space

Requiring a discerning eye, mathematical precision, and keen sense of aesthetics, map making is a unique application of both art and science. Though the scale may differ, neuroscientists who study vision are like cartographers ...

5 hours ago in Neuroscience
Medical Xpress / Machine learning reveals brain networks involved in child aggression

Child psychiatric disorders, such as oppositional defiant disorder and attention-deficit/hyperactivity disorder (ADHD), can feature outbursts of anger and physical aggression. A better understanding of what drives these symptoms ...

3 hours ago in Psychology & Psychiatry
Medical Xpress / Stem cells lose their 'glue' and escape from hair follicle to cause hair loss, says new study

A newly discovered cause of balding in aging male mice could reveal a cause of hair loss in men and women as well, reports a study from Northwestern Medicine scientists. The findings provide new insight into how hair and ...

3 hours ago in Medical research
Medical Xpress / Alzheimer's disease may cause vicious circle between brain network and immune cell dysfunctions

Studying the complex causes of Alzheimer's disease, and how to treat and prevent this condition, is like solving a many-piece puzzle, with scientists each tackling a small section, unsure of how it might fit into the larger ...

3 hours ago in Neuroscience
Medical Xpress / Dopamine's many roles explained

Among the neurotransmitters in the brain, dopamine has gained an almost mythical status. Decades of research have established its contribution to several seemingly unrelated brain functions including learning, motivation, ...

8 hours ago in Neuroscience
Medical Xpress / Release of chemical dopamine in infant brains may help control early social development

Changing levels of the chemical dopamine, a chemical most associated with motivation, may help explain why stressful experiences during infancy can lead to lasting behavioral issues, a new study in rodents shows.

8 hours ago in Neuroscience
Medical Xpress / Using game technology to help adolescents on the autism spectrum

People on the autism spectrum often struggle to interpret facial cues, partially because they are unable to recognize how eye gaze direction is used to predict the actions and intentions of others. This can have huge implications ...

5 hours ago in Autism spectrum disorders
Medical Xpress / Fibroblasts could serve as new key to enhancing personalized treatment for lung cancer patients

Three subtypes of cancer-associated fibroblasts (CAF) could guide the design of personalized treatment for lung cancer patients, according to a new study in Cancer Cell led by researchers at Massachusetts General Hospital ...

8 hours ago in Oncology & Cancer
Medical Xpress / It's never too late to treat progeria, say researchers

Scientists at the Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) and the Spanish Cardiovascular Research Network (CIBERCV), led by Dr. Vicente Andrés, have generated the HGPSrev experimental mouse ...

5 hours ago in Cardiology