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 years afterward, the study detected another so-called biomarker of brewing trouble.
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Article URL : https://apnews.com/article/alzheimers-dementia-amyloid-tau-b31db4ce15caf8b5c9c722b6240b2951