Alzheimer Research Discovery Study yields clues to why Alzheimer’s disease damages certain parts of the brain The Source • November 18, 2022November 18, 2022 Red and orange areas on these heat maps of human brains show where the gene APOE is most active (top two brain images) and where tangles of the protein tau are most concentrated (bottom two brain images). APOE is the biggest genetic risk factor for Alzheimer’s, and tau tangles drive brain damage in the disease. The similarities in the two sets of maps suggested to researchers at Washington University School of Medicine in St. Louis that APOE plays a role in making certain brain areas particularly vulnerable to Alzheimer’s damage. (Image: Diana Hobbs) View Content