Oxidative stress, mitochondria and mtDNA-mutator mice.

Abstract excerpt

The oxidative stress theory of aging, an expansion of the mitochondrial theory of aging, is based around the idea of a vicious cycle, in which somatic mutations of mitochondrial DNA (mtDNA) provoke respiratory chain dysfunction leading to enhanced ROS production and in turn to the accumulation of further mtDNA mutations. Mitochondrial dysfunction and mtDNA mutations are amplified during the course of aging....

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