Etiology of sporadic Alzheimer's disease: somatostatin, neprilysin, and amyloid beta peptide.

Abstract:

:We recently demonstrated that amyloid beta peptide (Abeta) is catabolized primarily by a neutral endopeptidase, neprilysin, in the brain and that a neuropeptide, somatostatin (SST), regulates brain Abeta level via modulation of neprilysin activity. Because SST expression in the brain declines upon aging in various mammals including rodents, apes and humans, we hypothesize that the aging-dependent reduction of SST triggers accumulation of Abeta in the brain by suppressing neprilysin action. This hypothesis accounts for the fact that aging is the predominant risk factor for Sporadic Alzheimer's disease.

journal_name

Med Hypotheses

journal_title

Medical hypotheses

authors

Hama E,Saido TC

doi

10.1016/j.mehy.2005.02.045

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

498-500

issue

3

eissn

0306-9877

issn

1532-2777

pii

S0306-9877(05)00177-5

journal_volume

65

pub_type

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