In surprising twist, some Alzheimer’s plaques may be protective, not destructive

In surprising twist, some Alzheimer's plaques may be protective, not destructive
A dense-core amyloid-beta plaque (red) surrounded by microglia that lack TAM receptors (white) in the brain of a mouse with Alzheimer’s disease. Credit: Salk Institute

One of the characteristic hallmarks of Alzheimer’s disease (AD) is the buildup of amyloid-beta plaques in the brain. Most therapies designed to treat AD target these plaques, but they’ve largely failed in clinical trials. New research by Salk scientists upends conventional views of the origin of one prevalent type of plaque, indicating a reason why treatments have been unsuccessful.

The traditional view holds that the brain’s trash-clearing , called , inhibit the growth of…

Read more…