Weill Cornell Medicine Nov 4 2025 Researchers have discovered that free radicals generated at a specific site in non-neuronal brain cells called astrocytes, may promote dementia, according to a Weill Cornell Medicine study. Their findings, published Nov. 4 in Nature Metabolism, demonstrated that blocking this site lowered brain inflammation and protected neurons, suggesting a novel therapeutic approach for neurodegenerative disorders, including frontotemporal dementia and Alzheimer's disease. "