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β-Amyloid Protein in Alzheimer's Disease

Published online by Cambridge University Press:  18 September 2015

Josephine Nalbantoglu*
Affiliation:
Departments of Medicine, Neurology & Neurosurgery, McGill Center for Studies in Agin, McGill University, Montreal
*
Montreal Neurological Institute, 3801 University Street, Montreal, Quebec, Canada H3A 2B4
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Abstract:

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β-amyloid protein, a 42-43 amino acid polypeptide, accumulates abnormally in senile plaques and the cerebral vasculature in Alzheimer's disease. This polypeptide is derived from a membrane-associated precursor which has several isoforms expressed in many tissues. The precursor protein is processed constitutively within the P-amyloid domain, leading to the release of the large β-terminal portion into the extracellular medium, β-amyloid protein may be toxic to certain neuronal cell types and its early deposition may be an important event in the pathogenesis of Alzheimer's disease.

Type
Research Article
Copyright
Copyright © Canadian Neurological Sciences Federation 1991

References

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