Brain scans of a man from Colombia show limited buildup of tau protein in his entorhinal cortex, a region that is characteristically affected in the early clinical stages of Alzheimer's disease.(Yakeel T. Quiroz, Justin Sanchez/Massachusetts General Hospital) When a Colombian man was first evaluated by neurologists at age 67, he was cognitively normal, and neither he nor his family had concerns about his memory.
#people #years #united-states #san-francisco #individuals #possibility #researchers #million-people #massachusetts #alzheimers-disease
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