Silent brain changes precede Alzheimer's. Researchers have new clues about which come first
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February 21, 2024
WASHINGTON (AP) — Alzheimer's quietly ravages the brain long before symptoms appear and now scientists have new clues about the dominolike sequence of those changes — a potential window to one day intervene.
A large study in China tracked middle-aged and older adults for 20 years, using regular brain scans, spinal taps and other tests.
Compared to those who remained cognitively healthy, people who eventually developed the mind-robbing disease had higher levels of an Alzheimer's-linked protein in their spinal fluid 18 years prior to diagnosis, researchers reported Wednesday. Then every few year...
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