PMID: 9164706Mar 1, 1997Paper

Dietary antioxidants and cardioprotection--fact or fallacy?

Canadian Journal of Physiology and Pharmacology
U Steinbrecher

Abstract

The emerging dogma that low density lipoprotein (LDL) oxidation is a contributing cause and not simply a consequence of atherosclerosis is based on three lines of experimental evidence: (i) lipid peroxidation products and oxidized LDLs are present in atherosclerotic lesions; (ii) oxidized LDL has an array of potentially proatherogenic properties in vitro, including uptake by macrophages via a number of distinct "scavenger" receptors; and (iii) treatment of hypercholesterolemic animals with potent antioxidant drugs can retard the development of atherosclerosis. Additional support for the role of lipoprotein oxidation in atherogenesis was provided by cross-cultural dietary comparisons, which suggested an inverse correlation between antioxidant vitamin intake and coronary mortality. As well, several large case-control studies indicated that antioxidant vitamin intake, particularly vitamin E, was associated with reduced coronary risk. However, these studies do not indicate whether this association is causal, or if vitamin supplementation is merely a marker for some other protective factor. To test this properly, randomized controlled intervention studies are required. In several animal models, a number of different antioxidant drug...Continue Reading

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Citations

Oct 8, 1999·Clinica Chimica Acta; International Journal of Clinical Chemistry·B S Dhaliwal, U P Steinbrecher
Sep 1, 2004·Environmental Health and Preventive Medicine·Shuko NojiriYutaka Inaba

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