期刊
NEUROCHEMISTRY INTERNATIONAL
卷 53, 期 5, 页码 103-111出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuint.2008.06.005
关键词
Alzheimer's disease; Amyloid hypothesis; Cholinergic hypothesis; Amyloid precursor protein; Cholinergic receptors; alpha-Secretase; beta-Secretase
资金
- OTKA [T60589]
- National Office for Research and Technology, Hungary [RET-08/2004]
Alzheimer's disease (AD) is a progressive, neurodegenerative disease characterized by memory and cognitive loss, the formation of senile plaques containing amyloid-beta (A beta) peptide, degeneration of the cholinergic neurons and the development of neurofibrillary tangles. The build-up of A beta is considered to be a central feature in the pathogenesis of AD. However, other critical molecular and neurochemical alterations too occur, such as a cholinergic dysfunction. As concerns the pathomechanism of the disease, both the amyloid cascade hypothesis and the cholinergic hypothesis of AD are widely accepted. This review surveys recent in vitro and in vivo experimental evidence relating to these two hypotheses. Bidirectional pathways linking them as regards the cholinergic neurotoxicity of A beta and the regulatory mechanisms of cholinergic receptor activation or enzyme inhibition in the processing of the amyloid precursor protein are also discussed. Further work is warranted to elucidate the exact effects in the interactions between the cholinergic and amyloid hypotheses of the candidate drugs used in AD therapy. (C) 2008 Elsevier Ltd. All rights reserved.
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