Amyloid plaques may not necessarily come first in Alzheimer's disease, suggests new study

Amyloid plaques may not necessarily come first in Alzheimer's disease, suggests new study

Amyloid plaques may not necessarily come first in Alzheimer's disease, suggests new study

The scientific community has long believed that beta-amyloid, a protein that can clump together and form sticky plaques in the brain, is the first sign of Alzheimer's disease. Beta-amyloid then leads to other brain changes including neurodegeneration and eventually to thinking and memory problems. But a new study challenges that theory.