Medical Xpress news

Medical Xpress / A mother's devotion to newborns begins in the brain, study suggests

New research has found that a hormone is responsible for making mothers' interactions with newborns feel rewarding rather than just necessary. The University of Otago—Ōtākou Whakaihu Waka study, published in Science Advances, ...

Jul 23, 2026
Medical Xpress / Premature blood stem cell aging in sickle cell disease may be reversible

Sickle cell disease causes premature aging of blood stem cells, which scientists may be able to address with a special class of drugs, according to a new study from St. Jude Children's Research Hospital. Patients with sickle ...

Jul 23, 2026
Medical Xpress / Artery-on-a-chip helps predict stroke risk

Predicting an individual's risk of ischemic stroke is difficult because thrombosis embolization—the process of a blood clot detaching from the area where it formed, traveling and then sticking in another blood vessel—is based ...

Jul 23, 2026
Medical Xpress / Gene activity in blood fluctuates more than expected—and that has consequences for medicine

Take a blood sample from someone in the dead of winter. Take another in midsummer. Same person, same laboratory. And yet, at the level of gene activity, the molecular picture can look surprisingly different. This is not an ...

Jul 23, 2026
Medical Xpress / New immune mechanism helps explain why ovarian cancer stops responding to chemotherapy

Scientists at The Wistar Institute have identified a new mechanism behind the chemotherapy resistance that makes ovarian cancer so lethal. In a new study published in The Journal for ImmunoTherapy of Cancer, the researchers ...

Jul 23, 2026
Medical Xpress / New strategy could prevent T cell exhaustion and boost immunotherapy

A major pillar of cancer immunotherapy involves stimulating T cells, the specialized killers of the immune system, to attack tumors. But this strategy has been undermined by the tendency of T cells to tire out before finishing ...

Jul 23, 2026
Medical Xpress / Persistent money struggles tied to faster brain aging

Persistent financial hardship accelerates age-related cognitive decline, according to a new study led by University College London (UCL) researchers. The study, published in Innovation in Aging, looked at data from 2,759 ...

Jul 23, 2026
Medical Xpress / Multi-omics map paves way for personalized medicine in Down syndrome

In a recent study published in Nature Communications, researchers from the University of Colorado Anschutz Linda Crnic Institute for Down Syndrome (Crnic Institute) discovered unique biological processes altered among individuals ...

Jul 23, 2026
Medical Xpress / Two ways to read a genome: Body-wide, single-cell atlas maps DNA folding and methylation together

Every cell in the human body carries the same 3 billion letters of DNA, yet a neuron, a heart muscle cell and a pancreatic beta cell each use that shared code to do entirely different jobs. How cells pull off this trick comes ...

Jul 23, 2026
Medical Xpress / Molecular imaging enhances diagnosis of fever of unknown origin

PET/CT can add valuable information to aid the diagnosis of fever of unknown origin (FUO), according to a new multicenter, retrospective study published in the June issue of The Journal of Nuclear Medicine. In a cohort of ...

Jul 23, 2026
Medical Xpress / Chemotherapy leaves detectable DNA fingerprints in childhood tumors within 18 months

Nearly half of childhood tumors treated with common types of chemotherapy showed detectable DNA changes linked to treatment within 18 months, according to a new international study led by The Hospital for Sick Children (SickKids). ...

Jul 23, 2026
Medical Xpress / Gene regulation map reveals treatment targets for heart failure

Researchers from the University of California San Diego have created the most detailed map to date of how gene regulation breaks down in human heart failure, revealing how genes are controlled in specific cell types as the ...

Jul 23, 2026