Brain Switch Uncovered That Could Prevent Alzheimer’s Memory Loss

UCSD researchers used an AI-driven approach to identify chromogranin A as a molecular switch deciding whether Alzheimer’s pathology translates into memory loss. In tauopathy mice, removing CgA preserved learning and memory despite brain pathology, with females showing stronger protection. They also found catestatin, a peptide derived from CgA, which lowered disease markers and protected cognition across several mouse models. All findings are preclinical and require replication, dosing, safety studies, and regulatory review before any human testing, but the work aims to shift Alzheimer’s research toward prevention-based strategies.