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Nature 400, 116-117 (8 July 1999) | doi:10.1038/22006

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Alzheimer's disease:  Antibody clears senile plaques

Peter H. St George-Hyslop1 & David A. Westaway1

People suffering from Alzheimer's disease develop a progressive dementia in adulthood, accompanied by three main structural changes in the brain: diffuse loss of neurons in the hippocampus and neocortex; accumulation of intracellular protein deposits termed neurofibrillary tangles; and accumulation of extracellular protein deposits termed amyloid or senile plaques, surrounded by misshapen nerve terminals (dystrophic neurites). A main constituent of these amyloid plaques is the amyloid-beta peptide (Abeta), a 40-42-amino-acid protein that is produced through cleavage of the beta-amyloid precursor protein (APP).

  1. Peter H. St George-Hyslop and David A. Westaway are at the Centre for Research in Neurodegenerative Diseases, Departments of Medicine (Neurology) and Laboratory Medicine and Pathobiology, University of Toronto, 6 Queens Park Crescent West, Tanz Neuroscience Building, Toronto, Ontario M5S 3H2, Canada.
    e-mail: Email: p.hyslop@utoronto.ca