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- W2102445981 endingPage "706" @default.
- W2102445981 startingPage "683" @default.
- W2102445981 abstract "Mitochondrial dysfunction is heavily implicated in the multifactorial aging process. Aging humans have increased levels of somatic mtDNA mutations that tend to undergo clonal expansion to cause mosaic respiratory chain deficiency in various tissues, such as heart, brain, skeletal muscle, and gut. Genetic mouse models have shown that somatic mtDNA mutations and cell type-specific respiratory chain dysfunction can cause a variety of phenotypes associated with aging and age-related disease. There is thus strong observational and experimental evidence to implicate somatic mtDNA mutations and mosaic respiratory chain dysfunction in the mammalian aging process. The hypothesis that somatic mtDNA mutations are generated by oxidative damage has not been conclusively proven. Emerging data instead suggest that the inherent error rate of mitochondrial DNA (mtDNA) polymerase γ (Pol γ) may be responsible for the majority of somatic mtDNA mutations. The roles for mtDNA damage and replication errors in aging need to be further experimentally addressed." @default.
- W2102445981 created "2016-06-24" @default.
- W2102445981 creator A5040041293 @default.
- W2102445981 date "2010-06-07" @default.
- W2102445981 modified "2023-10-17" @default.
- W2102445981 title "Somatic Mitochondrial DNA Mutations in Mammalian Aging" @default.
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