Plasma neuronal exosomal levels of Alzheimer's disease biomarkers in normal aging.

Abstract:

:Plasma neuronal exosomal levels of pathogenic Alzheimer's disease (AD) proteins, cellular survival factors, and lysosomal proteins distinguish AD patients from control subjects, but changes in these exosomal proteins associated with normal aging have not been described for cognitively intact subjects. Plasma neuronal exosomal levels of P-T181-tau, P-S396-tau, Aβ 1-42, cathepsin D, repressor element 1-silencing transcription factor, and neurogranin were quantified longitudinally in cognitively intact older adults using two samples collected at 3- to 11-year intervals. Except for P-S396-tau, exosomal protein levels changed significantly with aging, but were largely outside the range observed in AD patients.

journal_name

Ann Clin Transl Neurol

authors

Abner EL,Jicha GA,Shaw LM,Trojanowski JQ,Goetzl EJ

doi

10.1002/acn3.309

subject

Has Abstract

pub_date

2016-04-13 00:00:00

pages

399-403

issue

5

issn

2328-9503

pii

ACN3309

journal_volume

3

pub_type

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