Snake postprandial metabolite shows cross-species activation of hypothalamic neurons

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This is a summary of: Xiao, S. et al. Python metabolomics uncovers a conserved postprandial metabolite and gut–brain feeding pathway. Nat. Metab. https://doi.org/10.1038/s42255-026-01485-0 (2026). Source link

Researchers use multiview deep learning to enhance echocardiogram analysis

Heart disease is the leading cause of adult death worldwide, making cardiovascular disease diagnosis and management a global health priority. An echocardiogram, or cardiac ultrasound, is one of the most commonly used imaging tools employed by physicians to diagnose a variety of heart diseases and conditions.  Most standard echocardiograms provide two-dimensional visual images (2D) of the three-dimensional (3D) cardiac anatomy. These echocardiograms often capture hundreds of 2D slices or views of a … Read more

Scientists show gut bacteria can reach the brain in mice and reveal a potential vagus nerve pathway

A new mouse study reveals that under certain dietary conditions, gut bacteria can reach the brain without entering the bloodstream, suggesting a possible vagus nerve route and raising new questions about the gut–brain connection. Study: Translocation of bacteria from the gut to the brain in mice. Image Credit: Corona Borealis Studio / Shutterstock In a … Read more

How PIEZO2 Senses Touch: New Insights into Molecular Mechanisms & Sensory Disorders

Archyde The sensation of touch, from a gentle tap to the feeling of clothing against skin, relies on a complex network of nerve cells and specialized proteins. Scientists have long known… You can read the full story here: How PIEZO2 Senses Touch: New Insights into Molecular Mechanisms & Sensory Disorders. Source link

Hormone fluctuations influence perceived effort during intense workouts

Female sex hormones estrogen and progesterone fluctuate monthly across the menstrual cycle, affecting moods and energy levels. New research from the University of Oregon finds that those fluctuations don’t change a woman’s ability to exercise hard, but they do influence how difficult that work feels. The findings were published in the Journal of Applied Physiology. … Read more

Women suffer heart attacks too. Understanding risks, symptoms and how to save yourself | Health

Lori Sepich smoked for years and sometimes skipped taking her blood pressure medicine. But she never thought she’d have a heart attack. The possibility “just wasn’t registering with me,” said the 64-year-old from Memphis, Tennessee, who suffered two of them 13 years apart. She’s far from alone. More than 60 million women in the U.S. live … Read more

Molecular signatures of oocyte viability identified by follicular fluid proteomics

World Health Organization. Infertility Prevalence Estimates. (2021). McGee, E. A. & Hsueh, A. J. W. Initial and cyclic recruitment of ovarian follicles. Endocr. Rev. 21, 200–214 (2000). Google Scholar  Hurwitz, A. & Adashi, E. Y. Ovarian follicular atresia as an apoptotic process: A paradigm for programmed cell death in endocrine tissues. Mol. Cell. Endocrinol. 84, … Read more

Study reveals coffee triggers distinct cytokine responses compared with pure caffeine

A controlled human study reveals that coffee’s complex chemical matrix may shape immune responses differently than pure caffeine, highlighting how everyday dietary exposures can subtly influence physiology. Study: Immune modulation in response to coffee intake: a pilot study. Image Credit: ZeiMomArt / Shutterstock In a recent study published in the European Journal of Nutrition, researchers evaluated … Read more

Sleep loss triggers brain fluid pulses that impair attention, study finds

New neuroimaging research shows that when sleep-deprived people lose focus, the brain briefly shifts toward sleep-like physiology, offering fresh insight into why cognitive performance declines without adequate rest. Study: Attentional failures after sleep deprivation are locked to joint neurovascular, pupil and cerebrospinal fluid flow dynamics. Image Credit: New Africa / Shuttertock In a recent study … Read more

New roadmap integrates aging into Parkinson disease models

Even though aging is the largest risk factor for Parkinson’s disease, the majority of research aimed at taming the able neurodegenerativeincur motor disease has largely left aging out of the mix. A group of researchers from around the globe seek to change that. “Unraveling the intersection of aging and Parkinson’s disease: a collaborative road map … Read more