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Science Daily — Although the causes of Alzheimer's disease are not completely understood, amyloid-beta (A-beta) is widely considered a likely culprit -- the "sticky" protein clumps into plaques thought to harm brain cells.
But now researchers at Washington University School of Medicine in St. Louis have uncovered evidence strengthening the case for another potential cause of Alzheimer's. The finding also represents the first time scientists have found a connection between early- and late-onset Alzheimer's.