NDLI: Effect of resveratrol and quercetin supplementation on redox status and inflammation after exercise.

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Effect of resveratrol and quercetin supplementation on redox status and inflammation after exercise.

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Effect of resveratrol and quercetin supplementation on redox status and inflammation after exercise.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	McAnulty, Lisa S. Miller, Lindsey E. Hosick, Peter A. Utter, Alan C. Quindry, John C. McAnulty, Steven R.
Description	Country affiliation: United States Author Affiliation: McAnulty LS ( Department of Nutrition and Health Care Management, Appalachian State University, Boone, NC 28608, USA.)
Abstract	Resveratrol and quercetin function as antioxidants and anti-inflammatories in vitro, but these mechanisms have been minimally examined in combination in exercising humans. The purpose of this investigation was to examine supplementation as a countermeasure against oxidative stress and inflammation in response to exercise. Fourteen athletes were randomly assigned, in a double-blind crossover design, to a resveratrol and quercetin combination (RQ) (120 mg resveratrol and 225 mg quercetin for 6 days and 240 mg resveratrol and 450 mg quercetin on day 7 just prior to exercise) or to placebo (P). There was a 1-week washout between trials. Blood was taken at baseline, pre-exercise, immediately after exercise, and 1 h after exercise. Plasma was analyzed for oxidative stress (F2-isoprostanes and protein carbonyls), antioxidant capacity (ferric-reducing ability of plasma (FRAP), Trolox equivalent antioxidant capacity (TEAC), oxygen radical absorptive capacity (ORAC)), and inflammation (cytokine interleukin (IL)-8 and C-reactive protein (CRP)). Statistical design utilized a 2 × 3 ANOVA and Student's t test. Pre-exercise values were not different from baseline for any measure. The postexercise increase in F2-isoprostanes was significantly less (p = 0.039 interaction) with RQ (68%) than with P (137%). Protein carbonyls, FRAP, ORAC, and TEAC significantly increased after exercise but were not affected by treatment. IL-8 and CRP increased significantly immediately after exercise but were not affected by treatment. These data indicate that RQ significantly reduces exercise-induced lipid peroxidation without associated changes in inflammation or plasma antioxidant status.
File Format	HTM / HTML
ISSN	17155312
Issue Number	7
Volume Number	38
e-ISSN	17155320
Journal	Applied Physiology, Nutrition, and Metabolism
Language	English
Publisher	Canadian Science Publishing
Publisher Date	2013-07-01
Publisher Place	Canada
Access Restriction	Subscribed
Subject Keyword	Discipline Physiology Discipline Metabolism Discipline Nutritional Sciences Discipline Sports Medicine Oxidation-reduction Quercetin Antioxidants Metabolism Double-blind Method Humans Inflammation Oxidative Stress Drug Effects Pharmacology Journal Article Randomized Controlled Trial Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Nutrition and Dietetics Physiology Endocrinology, Diabetes and Metabolism Physiology (medical) Sports Science

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