期刊
PATHOBIOLOGY
卷 79, 期 2, 页码 55-71出版社
KARGER
DOI: 10.1159/000332218
关键词
Alzheimer's disease; Amyloid; Dementia; Neurofibrillary tangles; Oxidative stress; Senile plaques; Tau protein
Alzheimer's disease (AD), the most common cause of dementia, results from the interplay of various deregulated mechanisms triggering a complex pathophysiology. The neurons suffer from and slowly succumb to multiple irreversible damages, resulting in cell death and thus memory deficits that characterize AD. In spite of our vast knowledge, it is still unclear as to when the disease process starts and how long the perturbations continue before the disease manifests. Recent studies provide sufficient evidence to prove amyloid beta (A beta) as the primary cause initiating secondary events, but A beta is also known to be produced under normal conditions and to possess physiological roles, hence, the questions that remain are: What are the factors that lead to abnormal A beta production? When does A beta turn into a pathological molecule? What is the chain of events that follows A beta? The answers are still under debate, and further insight may help us in creating better diagnostic and therapeutic options in AD. The present article attempts to review the current literature regarding AD pathophysiology and proposes a pathophysiologic cascade in AD. Copyright (C) 2011 S. Karger AG, Basel
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