Effect of alpha-tocopherol supplementation on plasma homocysteine and oxidative stress in highly trained athletes before and after exhaustive exercise.
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Link to full study
http://www.ncbi.nlm.nih.gov/pubmed/16115541
Conclusion of this study
Plasma F(2)-isoprostanes increased 181% versus 97% during the race in E versus P, and lipid hydroperoxides were significantly elevated (P=.009) 1.5 h postrace in E versus P. Plasma antioxidant potential was significantly higher 1.5 h postrace in E versus P (P=.039). This study indicates that prolonged large doses of alpha-tocopherol supplementation did not affect plasma Hcy concentrations and exhibited pro-oxidant characteristics in highly trained athletes during exhaustive exercise.
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