Medical Xpress news

Medical Xpress / Mighty mitochondria: Scientists uncover new role for fighting bacterial infections, including drug-resistant superbugs

Beyond the nucleus, no other organelle in eukaryotic cells captures the public's imagination quite like mitochondria: They are the engines of cellular energy production; they possess their own DNA, and they are passed from ...

Jul 31, 2026
Medical Xpress / Cannabinoid pathways may offer targets for kidney disease as CKD affects 850 million people

Approximately 850 million people globally (9.1% of the world's population) have chronic kidney disease (CKD). The number of affected individuals has grown steadily during the past 20 years and is on track to continue rising. ...

Jul 31, 2026
Medical Xpress / New study links exposure to fungicides and insecticides to changes in the age of menarche

Puberty is a process regulated by the endocrine system, and its timing can be altered by environmental factors. Several recent studies point to a trend toward earlier onset of puberty in girls, a phenomenon linked to a complex ...

Jul 31, 2026
Medical Xpress / Reducing protein intake could support healthy aging by reshaping metabolism

Protein-fortified foods are popping up everywhere, from cereal and coffee to even protein water. But a new review covering more than 350 papers on protein restriction and aging—published July 31 in the journal Cell Press ...

Jul 31, 2026
Medical Xpress / Chromosome-protecting protein may help explain muscle repair and the rarity of muscle cancers

A protein best known for protecting the ends of chromosomes also helps muscle stem cells preserve their identity and repair damaged tissue, according to a new study from researchers at the Perelman School of Medicine at the ...

Jul 31, 2026
Medical Xpress / Not all exercise is equal when it comes to metabolic syndrome risk

Not every disease announces itself with obvious symptoms. Some develop quietly, going unnoticed until they begin to take a serious toll on health. Metabolic syndrome (MetS) is one of them. Rather than a single disease, it ...

Jul 31, 2026
Medical Xpress / Microglia reveal sex-specific brain recovery mechanism after ketamine anesthesia

During ketamine anesthesia, the brain's nerve cells fall silent—as consciousness returns, they begin to reconnect. For the first time, researchers at the Institute of Science and Technology Austria (ISTA) have shown that ...

Jul 31, 2026
Medical Xpress / How children talk can indicate risk for future mental health problems

Linguistic models that analyzed the words children used when talking about stressful events were better at predicting future mental health problems than a panel of human experts.

Jul 31, 2026
Medical Xpress / Newly identified mitochondrial plaques provide potential therapeutic target for Alzheimer's disease

Alzheimer's disease is a devastating neurodegenerative disorder affecting millions of people worldwide. Scientists have long known that two hallmarks of the disease are beta-amyloid (Aβ) plaques and neurofibrillary tangles, ...

Jul 31, 2026
Medical Xpress / Immune signals may help predict responses to therapies for difficult-to-treat depression

In a new study, researchers from The University of Texas MD Anderson Cancer Center have uncovered insights that may help explain how rapid-acting antidepressants, such as ketamine and psychedelics, can reduce symptoms of ...

Jul 31, 2026
Medical Xpress / X-chromosome inactivation attracts mutations that increase risk of hemophilia and muscular dystrophy

In a study published in the journal Science, researchers in Queensland and the United States discovered that the human X chromosome attracts an unusual kind of DNA mutation, potentially doubling the risk of certain genetic ...

Jul 31, 2026
Medical Xpress / AI blood assay detects liver cancer across diverse international populations

Researchers at the Johns Hopkins Kimmel Cancer Center validated an artificial intelligence (AI)-powered blood test that accurately detected liver cancer in people from two geographically and biologically distinct populations ...

Jul 31, 2026