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Antioxidants in Human Health and Disease

Antioxidants in Human Health and Disease Free radicals and antioxidants are widely discussed in the clinical and nutritional literature. Antioxidants are needed to prevent the formation and oppose the actions of reactive oxygen and nitrogen species, which are generated in vivo and cause damage to DNA, lipids, proteins, and other biomolecules. Endogenous antioxidant defenses (superoxide dismutases, H 2 O 2 -removing enzymes, metal binding proteins) are inadequate to prevent damage completely, so dietderived antioxidants are important in maintaining health. Many dietary compounds have been suggested to be important antioxidants: The evidence for a key role of vitamins E and C is strong, but that for carotenoids and related plant pigments is weaker. Interest is also growing in the role of plant phenolics, especially flavonoids. Some antioxidants can exert prooxidant effects in vitro, but their physiological relevance is uncertain. Experimental approaches to the optimization of antioxidant nutrient intake are proposed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Nutrition Annual Reviews

Antioxidants in Human Health and Disease

Annual Review of Nutrition , Volume 16 (1) – Jul 1, 1996

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References (79)

Publisher
Annual Reviews
Copyright
Copyright 1996 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0199-9885
eISSN
1545-4312
DOI
10.1146/annurev.nu.16.070196.000341
pmid
8839918
Publisher site
See Article on Publisher Site

Abstract

Free radicals and antioxidants are widely discussed in the clinical and nutritional literature. Antioxidants are needed to prevent the formation and oppose the actions of reactive oxygen and nitrogen species, which are generated in vivo and cause damage to DNA, lipids, proteins, and other biomolecules. Endogenous antioxidant defenses (superoxide dismutases, H 2 O 2 -removing enzymes, metal binding proteins) are inadequate to prevent damage completely, so dietderived antioxidants are important in maintaining health. Many dietary compounds have been suggested to be important antioxidants: The evidence for a key role of vitamins E and C is strong, but that for carotenoids and related plant pigments is weaker. Interest is also growing in the role of plant phenolics, especially flavonoids. Some antioxidants can exert prooxidant effects in vitro, but their physiological relevance is uncertain. Experimental approaches to the optimization of antioxidant nutrient intake are proposed.

Journal

Annual Review of NutritionAnnual Reviews

Published: Jul 1, 1996

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