Light it up: Battery particles tell the true story of a battery's charge
Peer-Reviewed Publication
Updates every hour. Last Updated: 26-Dec-2025 23:11 ET (27-Dec-2025 04:11 GMT/UTC)
Adolescents who start using cannabis early and often are more likely to need health care for both mental and physical problems as they enter adulthood, according to a new study led by McGill University researchers.
The study found those who began using cannabis before age 15 and continued daily or near-daily were more likely to seek care for depression, anxiety, suicidal distress and physical conditions such as respiratory problems and injuries. By contrast, starting after age 15 was linked only to more physical health problems later.
Despite modern imaging and genetic testing, diagnosing amyotrophic lateral sclerosis (ALS) remains challenging, particularly when distinguishing it from clinically similar neurodegenerative disorders. A new study led by the University Hospital Bonn (UKB) in cooperation with Alfried Krupp Hospital Essen now shows that combining two blood biomarkers – serum neurofilament light chain (sNfL) and cardiac troponin T (cTnT) – significantly improves diagnostic accuracy in ALS. The study results have been published in the journal Annals of Neurology.
In a new study from Boston University Chobanian & Avedisian School of Medicine and BU’s College of Engineering, researchers used a special microscope called birefringence microscopy (BRM) paired with an automated deep learning algorithm to reliably count and map myelin damage across whole sections of the brain—something not feasible with other techniques. The ability to image and measure damage to myelin will lead to better understanding the patterns and extent that occurs with disease, injury and normal aging.
A research team led by Professor Guorui Huang from the Department of Endocrine and Metabolic Diseases at Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, has developed an optimized protocol that fundamentally changes how circulating microvesicles (MVs) are isolated and characterized. The study reveals that commonly used methods unintentionally capture platelet fragments rather than true MVs, leading to decades of misinterpretation of their biological functions. The team’s newly defined 3000 g centrifugation threshold eliminates platelet contamination and provides a standardized foundation for future diagnostic and mechanistic studies on extracellular vesicles.