Alzheimer’s Disease Markers

Alzheimer’s disease markers are biological signs that indicate the presence or risk of the disease. The main markers include amyloid plaques—clumps of protein fragments that build up in the brain—and tau tangles, twisted fibers inside nerve cells. These abnormal proteins disrupt cell communication and cause brain cell death. Detecting these markers through imaging scans or cerebrospinal fluid tests helps diagnose Alzheimer's early and track disease progression. Together, they provide insights into the underlying biological changes, aiding in diagnosis and potential treatment development.