This 'Rotten Egg' Brain Gas Could Hold the Key to Fighting Alzheimer's Disease

Scientists have identified a protein called CSE that produces hydrogen sulfide gas in the brain, which may protect against Alzheimer's disease. In studies with genetically engineered mice, removing this protein caused memory loss, brain damage, weakened blood-brain barriers, and reduced formation of new neurons—all hallmarks of Alzheimer's. The findings suggest that hydrogen sulfide, when properly regulated, plays a protective role in maintaining brain cell health and supporting memory function. This discovery opens new research avenues for developing treatments that could slow or prevent Alzheimer's progression by targeting this essential brain mechanism.