Plasma amyloid beta-peptide 1-42 and incipient Alzheimer's disease.

Autor: Mayeux R; Taub Alzheimer's Disease Research Center, Staten Island, NY, USA., Tang MX, Jacobs DM, Manly J, Bell K, Merchant C, Small SA, Stern Y, Wisniewski HM, Mehta PD
Jazyk: angličtina
Zdroj: Annals of neurology [Ann Neurol] 1999 Sep; Vol. 46 (3), pp. 412-6.
DOI: 10.1002/1531-8249(199909)46:3<412::aid-ana19>3.0.co;2-a
Abstrakt: Mutations in the amyloid precursor protein and presenilin 1 and 2 genes result in elevated plasma levels of the amyloid beta-peptide species terminating at amino acid residue 42 (A beta1-42). In a longitudinal study of unrelated elderly individuals, those who subsequently developed Alzheimer's disease had higher plasma levels of A beta1-42 at entry than did those who remained free of dementia. The results indicate that elevated plasma levels of the released A beta peptide A beta1-42 may be detected several years before the onset of symptoms, supporting that extracellular A beta1-42 plays an important role in the pathogenesis of late-onset Alzheimer's disease.
Databáze: MEDLINE