Medical Xpress news

Medical Xpress / Psychiatric 'gold standard' falters as repeat interviews yield different diagnoses

Diagnostic interviews are widely used by mental health professionals to identify conditions such as anxiety, bipolar disorder and depression in adults, but new research led by McMaster University shows that the long considered ...

May 28, 2026
Medical Xpress / Do lying children grow up to be criminals? Mostly not, but persistent patterns may signal later risk

Most childhood lying does not lead to serious problems in adulthood, and only certain kinds of lying behavior are associated with later psychological or legal issues, a new study has found.

May 28, 2026
Medical Xpress / 'Toxic' molecule may play vital role in gene regulation and development

A molecule once thought to be a harmful metabolic byproduct may play a crucial role in early development and gene regulation, according to a new study published in Nature that challenges decades of biochemical assumptions. ...

May 28, 2026
Medical Xpress / Cannabis use does not lower testosterone, study concludes

The effects of cannabis on the hormonal system and male fertility remain controversial within the scientific community. A study conducted by the University of Geneva (UNIGE), in collaboration with the Swiss Center for Applied ...

May 28, 2026
Medical Xpress / Immune 'energy signature' linked to tuberculosis may explain why some individuals control infection

Researchers at Trinity College Dublin have identified key differences in how immune cells generate and use energy, a process known as cellular metabolism, in people with latent versus active tuberculosis (TB). The findings ...

May 28, 2026
Medical Xpress / Gut microbe found to worsen sepsis by triggering hyperinflammatory immune responses

Why do some people recover easily from bacterial infections while others rapidly deteriorate into life-threatening sepsis? According to a new study published in Nature Communications, the answer may lie not only in the invading ...

May 28, 2026
Medical Xpress / AI-powered atlas reveals new insights into tertiary lymphoid structures as prognostic and response biomarkers in cancer

In a study published in Science, researchers from The University of Texas MD Anderson Cancer Center have developed a spatial atlas of specialized immune structures, called tertiary lymphoid structures (TLSs), across multiple ...

May 28, 2026
Medical Xpress / Gene activity clocks estimate lifespan across species, matching epigenetic tools

Molecular clocks that can provide accurate estimates of both molecular age and lifespan across multiple mammalian species and tissue types are presented in an article published in Nature this week. An analysis of more than ...

May 28, 2026
Medical Xpress / Ocrelizumab cuts disability progression in primary progressive MS trial

A major international Phase III clinical trial, led by Queen Mary University of London, has found that ocrelizumab—a medication already prescribed to some patients with MS—significantly slows disability progression in people ...

May 28, 2026
Medical Xpress / Why chronic fatigue may start on plate: Blood marker points to vitamin gaps

With less time and more work, chronic fatigue has become a moniker of modern society. However, this not only reduces the quality of life but also constitutes a social issue that affects work efficiency and leads to accidents. ...

May 28, 2026
Medical Xpress / Scientists identify metabolic target to overcome chemotherapy resistance in ovarian cancer

Many cancers can be treated by administering DNA-damaging agents, such as platinum-based chemotherapy, because the resulting DNA damage causes the cancer cells to die. A subset of cancers, however, including ovarian cancers, ...

May 28, 2026
Medical Xpress / Brain aging reveals rising transposon RNAs, with distinct shifts in Huntington's and Parkinson's

Transposable elements (TEs), also called transposons, are DNA sequences capable of moving or replicating from one location to another within a genome. While TEs are the most significant fraction of the human genome (approximately ...

May 28, 2026