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Opinion - Are we over oxidized? Oxidative stress, cardiovascular disease, and the future of intervention studies with antioxidants

Authors Greg J Dusting, Chris Triggle

Published 15 July 2005 Volume 2005:1(2) Pages 93—96

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Greg J Dusting1, Chris Triggle2

1Howard Florey Institute, University of Melbourne, VIC, Australia; 2School of Medical Sciences, RMIT University, VIC, Australia

Are we over oxidized?

A number of recent clinical trials with antioxidants, notably vitamin C and E, have provided no support for the commonly held view that increasing our intake of antioxidants will offset the ravages of cardiovascular disease as well as other diseases (for extensive critical reviews see: Kritharides and Stocker 2002; Antoniades et al 2003; Touyz 2004). Is this conclusion justified? The role of antioxidant dietary adjuncts and therapy in prevention and treatment remains a highly important clinical question. In this opinion article we address the question: Is there a future for antioxidant therapy in the treatment and prevention of cardiovascular disease? We conclude that there is a need for better-designed studies as well as a re-thinking of the choice of antioxidants.

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