July 2025

Mouse study uncovers mast cells’ role as gatekeepers against pathogens

by Marta Wegorzewska, Washington University in St. Louis edited by Sadie Harley, reviewed by Andrew Zinin New research at WashU Medicine has found that histamine-releasing immune cells cause the gates to the brain to close when bacteria are detected, blocking fluid movement out of the brain and pathogen access into the brain. Credit: Sara Moser The itching, redness […]

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Long-term exercise may help restore brain connections in Parkinson’s disease

by Ansley Kelm, University Hospitals Cleveland Medical Center edited by Sadie Harley, reviewed by Andrew Zinin For each session, participants were required to pedal up to a speed of 80 rpm. The adaptive, motorized bike assisted them in attaining that level but also added and reduced resistance depending on the rider’s effort. Researchers believe this push-and-pull mechanism is

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New treatment could reduce brain damage from stroke, study in mice shows

by University of Cambridge edited by Sadie Harley, reviewed by Andrew Zinin  Graphical abstract. Credit: Cardiovascular Research (2025). DOI: 10.1093/cvr/cvaf118 Cambridge scientists have developed and tested a new drug in mice that has the potential to reduce damage to the brain when blood flow is restored following a stroke. The study, “Local arterial administration of acidified malonate as an adjunct therapy

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Synthetic torpor offers potential to redefine medicine, say researchers

by Beth Miller, Washington University in St. Louis edited by Sadie Harley, reviewed by Andrew Zinin Synthetic torpor induction approaches. Credit: Nature Metabolism (2025). DOI: 10.1038/s42255-025-01345-3 Nature is often the best model for science. For nearly a century, scientists have been trying to recreate the ability of some mammals and birds to survive extreme environmental conditions for brief or extended

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The outdoors is calling—head outside to reduce stroke risk

by Pennsylvania State University edited by Lisa Lock, reviewed by Andrew Zinin Fresh air, sunshine and time outdoors are some of the best parts of summer. But as people head outside to enjoy the good weather and get active, they’re doing more than just having fun—they’re also lowering their stroke risk. Strokes affect nearly 800,000 Americans every year

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Synthetic data boosts gait analysis: AI trained on simulations rivals existing models

by University of Tsukuba edited by Lisa Lock, reviewed by Robert Egan Schematic illustrations for our approach using synthetic musculoskeletal gaits for developing generalizable gait-analysis models. Credit: Nature Communications (2025). DOI: 10.1038/s41467-025-61292-1 Gait assessment is critical for diagnosing and monitoring neurological disorders, yet current clinical standards remain largely subjective and qualitative. Recent advances in AI have enabled more quantitative and

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Scientists make progress in the long search for an HIV vaccine

In the decades-long push to develop an HIV vaccine, researchers reported yesterday that they’ve managed to circumvent one particularly stubborn challenge. While developing a messenger RNA-based vaccine, the researchers found that the key was to make it hide a key protein complex that usually pokes out of the surface of the virus, because that complex

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13 Cancers in One Blood Test — but 75% False Alarms

A prospective cohort study led by Yang Shao, PhD, president and CEO of Geneseeq Technology Inc. and professor at Nanjing Medical University, Nanjing, published in Nature Medicine, on a blood test capable of simultaneously detecting 13 types of cancer. The test demonstrated high sensitivity and specificity and was able to identify early-stage cancers that often go

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