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Many previous investigations have consistently reported that caloric restriction (40%), which increases maximum longevity, decreases mitochondrial reactive species (ROS) generation and oxidative damage to mitochondrial DNA (mtDNA) in laboratory rodents. These decreases take place in rat liver after only seven weeks of caloric restriction. Moreover, it has been found that seven weeks of 40% protein...
The exquisite sensitivity of mitochondrial transcription to oxidant stress suggests that chronic, low level oxidative stress may impair mitochondrial gene expression during the aging process. In this study, we assessed the effects of age and of life-prolonging, anti-oxidative dietary restriction (DR) regimens on sensitivity of mitochondrial transcription to oxidant stress. Studies were carried out...
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