Medical Science News

RSS

Study finds high intake of ultra-processed foods tied to reduced DNA methylation

Women who consumed more ultra-processed foods (UPFs) showed distinct DNA methylation patterns, mostly reduced across key gene regions. These exploratory findings suggest that high UPF intake may influence gene regulation through epigenetic mechanisms.

4 Nov 2025

MRI-based computer models offer early insight into bone healing

Healing a broken bone can take months, and knowing whether recovery is on track often takes just as long.

4 Nov 2025

USC researchers map genetic architecture of the human corpus callosum

For the first time, a research team led by the Mark and Mary Stevens Neuroimaging and Informatics Institute (Stevens INI) at the Keck School of Medicine of USC has mapped the genetic architecture of a crucial part of the human brain known as the corpus callosum-the thick band of nerve fibers that connects the brain's left and right hemispheres.

4 Nov 2025

Swapping meat for plant-based options cuts fat but lowers protein, study finds

Replacing meat with plant-based or mycoprotein alternatives in UK diets lowers saturated fat and boosts fiber but reduces protein intake, especially for teens and older adults. The overall saturated fat reduction is too small to meaningfully affect cholesterol levels, researchers report in npj Science of Food.

4 Nov 2025

Do GLP-1 drugs cause cancer? New review says no, may even protect

A comprehensive review in The Journal of Clinical Investigation finds no overall link between GLP-1 receptor agonists and increased cancer risk, countering early safety concerns. Instead, evidence suggests possible protective effects for certain cancers, supported by metabolic and immune-modulating mechanisms.

4 Nov 2025

GLP-1 drugs calm inflammation beyond diabetes and weight loss

This Journal of Clinical Investigation review describes how glucagon-like peptide-1 (GLP-1)–based medicines reduce systemic and tissue inflammation through both weight-dependent and weight-independent mechanisms. It details preclinical and clinical evidence linking GLP-1 receptor activation to cardiovascular, renal, hepatic, neural, and joint anti-inflammatory effects while outlining uncertainties and future research needs.

4 Nov 2025

Redefining aging as an evolutionary achievement

In our modern society, aging tends to be something we ignore, and then try to avoid. Mainstream culture is geared toward the young, using the youth to gauge trends and styles, and targeting their spending power.

4 Nov 2025

Motor protein Myosin II regulates temperature sensitivity of immune cells

Temperature is a key physiological factor that determines the speed of immune reactions. While this may seem obvious, it has remained largely unexplored at the single-cell level-until now.

4 Nov 2025

Flexible drug-delivery patch can promote tissue healing after a heart attack

MIT engineers have developed a flexible drug-delivery patch that can be placed on the heart after a heart attack to help promote healing and regeneration of cardiac tissue.

4 Nov 2025

Free radicals generated at a specific site in astrocytes may promote dementia

Researchers have discovered that free radicals generated at a specific site in non-neuronal brain cells called astrocytes, may promote dementia, according to a Weill Cornell Medicine study.

4 Nov 2025

Understanding how the human brain responds to persuasive messages

An analysis of brain scans from 572 people reveals that activity in brain regions linked to reward and social processing can predict how effective messages will be.

4 Nov 2025

Body temperature and offspring size influence brain size in vertebrates

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold.

4 Nov 2025

Novel vaccine strategy could solve the challenge of implanted device infections

Patients with implanted medical devices like orthopedic joint replacements, pacemakers, and artificial heart valves run a small but significant risk that these devices get infected with bacterial pathogens.

4 Nov 2025

New review illuminates the intricate connections between gut microbiota and sleep regulation

A comprehensive review published today in Brain Medicine illuminates the intricate connections between gut microbiota and sleep regulation, establishing the microbiota-gut-brain axis as a critical pathway in understanding and potentially treating sleep disorders.

4 Nov 2025

Stress hormones may silence crucial neuronal genes through specific RNA molecules

What if the brain's response to stress could be read not in fleeting neurotransmitter bursts, but in the quieting of genes deep inside chromatin? Researchers at the University of Alabama at Birmingham have now shown that stress hormones may silence crucial neuronal genes through an unexpected class of RNA molecules that operate not by encoding proteins, but by reshaping the genome's architecture.

4 Nov 2025

New research sheds light on E. coli spread in human communities

Bacteria that often cause urinary infections can spread as rapidly as swine flu. But E. coli that are resistant to several classes of antibiotics behave differently.

4 Nov 2025

NIH-funded study investigates signals mediating the earliest stages of cancer development

The same cellular renewal that keeps our bodies healthy might also fuel the growth of cancer. A UC Merced biologist has found that the brain could hold the key to stopping it.

4 Nov 2025

How artificial light interferes with liver health

People who work against their internal clock over a long period of time increase the risk of fatty liver. The correlations are complex, but one research team in Bochum is trying to get to the bottom of the issue.

4 Nov 2025

Researchers use genetic engineering to create “product-ready” snakebite antivenom

An international team of researchers has used genetic engineering to create the first ever “product-ready” antivenom for snakes such as cobras and mambas.

4 Nov 2025

Study reveals how "P bodies" heavily influence a cell's fate

How do stem cells know what to become? Nearly three decades after scientists isolated the first human embryonic stem cells, researchers are still working hard to understand precisely how a single, undifferentiated cell can become any one of the roughly 200 cell types that make up the human body.

4 Nov 2025