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Oxidative Stress and Antioxidants in Exercise

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Abstract:

Increased aerobic metabolism during exercise is a potential source of oxidative stress. In muscle, mitochondria are one important source of reactive intermediates that include superoxide,hydrogen peroxide, and possibly hydroxyl radical . The recent discovery that mitochondria may generate nitric oxide also has implications for oxidant production and mitochondrial function. In this review, we critically examine the concept that production of reactive intermediates increases during exercise. Because the health benefits of regular exercise are well-documented, we also examine adaptations to exercise that may decrease oxidative stress. These include increased antioxidant defenses, reduced basal production of oxidants, and reduction of radical leak during oxidative phosphorylation.

Keywords: Antioxidants; Electron Spin Resonance; Gas Chromatography-Mass Spectrometry; Oxidative Stress; hydrogen peroxide; nitric oxide

Document Type: Review Article

DOI: http://dx.doi.org/10.2174/0929867013372896

Publication date: June 1, 2001

More about this publication?
  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.
ben/cmc/2001/00000008/00000007/art00010
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