Alzheimer's disease appears to be caused by the brain's poor elimination of a plaque component, beta-amyloid protein, rather than simply the accumulation of it, researchers from Washington University School of Medicine, St. Louis revealed in the journal Science. We already knew that beta-amyloid protein accumulation occurs in Alzheimer's patients; this study reveals something nobody knew - that it is the poor clearance of the protein rather than its accumulation that is at the heart of the problem...
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