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- W3003649913 abstract "Significance: Free radicals although originally thought of as damaging molecules, inevitable side effects of the utilization of oxygen by cells, are now considered as signals that by modifying, among others, the thiol–disulfide balance regulate many cell processes from metabolism to cell cycle. Recent Advances: This review discusses the importance of the modulation of the oxidant levels through physiological strategies such as physical exercise or genetic manipulations such as the overexpression of antioxidant enzymes, in the promotion of healthy aging. Critical Issues: We have divided the review into five different sections. In the first two sections of the article “Oxidants are signals” and “Exercise training is an antioxidant,” we discuss the main sources of free radicals during muscle contraction and their role, as hormetic substances, in the regulation of two main muscle adaptations to exercise in skeletal muscle; that is, mitochondrial biogenesis and the endogenous antioxidant defense. In the third section of the review, we deal with “the energy collapse in aging.” The increased rate of reactive oxygen species (ROS) production and the low rate of mitochondria biosynthesis in the old cells are examined. Finally, in the fourth and fifth sections entitled “Overexpression of antioxidants enzymes in healthy aging” and “Exercise, longevity, and frailty,” we consider the importance of the potentiation of the cellular defenses in health span and in life span. Future Directions: A correct manipulation of the ROS generation, directing these species to their physiological signaling role and preventing their deleterious effects, would allow the promotion of healthy aging. Antioxid. Redox Signal. 33, 570–579." @default.
- W3003649913 created "2020-02-07" @default.
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- W3003649913 date "2020-09-10" @default.
- W3003649913 modified "2023-09-29" @default.
- W3003649913 title "Modulating Oxidant Levels to Promote Healthy Aging" @default.
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- W3003649913 doi "https://doi.org/10.1089/ars.2020.8036" @default.
- W3003649913 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32008355" @default.
- W3003649913 hasPublicationYear "2020" @default.
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