Journal
BRAIN RESEARCH REVIEWS
Volume 49, Issue 3, Pages 618-632Publisher
ELSEVIER
DOI: 10.1016/j.brainresrev.2005.03.004
Keywords
mitochondria; mitochondrial mutation; mitochondrial gene expression; oxidative damage; sporadic Alzheimer's disease; in vitro study; peripheral cell; transgenic mice
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Funding
- NIA NIH HHS [AG22643] Funding Source: Medline
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This review summarizes recent findings that suggest a causal connection between mitochondrial abnormalities and sporadic Alzheimer's disease (AD). Genetic causes of AD are known only for a small proportion of familial AD patients, but for a majority of sporadic AD patients, genetic causal factors are still unknown. Currently, there are no early detectable biomarkers for sporadic AD, and there is a lack of understanding of the pathophysiology of the disease. Findings from recent genetic studies of AD pathogenesis suggest that mitochondrial defects may play an important role in sporadic AD progression, and that mitochondrial abnormalities and oxidative damage may play a significant role in the progression of familial AD. Findings from biochemical studies, in vitro studies, gene expression studies, and animal model studies of AD are reviewed, and the possible contribution of mitochondrial mutations to late-onset sporadic AD is discussed. (c) 2005 Elsevier B.V. All rights reserved.
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