Effects of grape seed extract supplementation on exercise-induced oxidative stress in rats

The aim of the present study was to investigate the effects of grape seed extract (GSE) supplementation on exercise performance and oxidative stress in acutely and chronically exercised rats. A total of sixty-four male rats were used in the study. Rats were divided into six groups: control, chronic...

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Veröffentlicht in:British journal of nutrition 2012-07, Vol.108 (2), p.249-256
Hauptverfasser: BELVIRANLI, Muaz, GÖKBEL, Hakki, OKUDAN, Nilsel, BASARALI, Kemal
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GÖKBEL, Hakki
OKUDAN, Nilsel
BASARALI, Kemal
description The aim of the present study was to investigate the effects of grape seed extract (GSE) supplementation on exercise performance and oxidative stress in acutely and chronically exercised rats. A total of sixty-four male rats were used in the study. Rats were divided into six groups: control, chronic exercise control, acute exercise control (AEC), GSE-supplemented control, GSE-supplemented chronic exercise and GSE-supplemented acute exercise groups. Chronic exercise consisted of treadmill running at 25 m/min, 45 min/d, 5 d a week for 6 weeks. Rats in the acute exercise groups were run on the treadmill at 30 m/min until exhaustion. GSE were given at 100 mg/kg of body weight with drinking water for 6 weeks. Plasma was separated from blood samples for the analysis of oxidative stress markers. There was no significant difference in time of exhaustion between the acute exercise groups. Plasma malondialdehyde (MDA) levels were higher in the acute exercise groups and lower in the chronic exercise groups. GSE supplementation decreased MDA levels. Xanthine oxidase and adenosine deaminase activities were higher in the AEC group compared to all the other groups. NO levels were increased with both chronic exercise and GSE supplementation. Superoxide dismutase and glutathione peroxidase activities were lower in the acute exercised groups and higher in the chronic exercised groups. GSE supplementation caused an increase in antioxidant enzyme activities. In conclusion, GSE supplementation prevents exercise-induced oxidative stress by preventing lipid peroxidation and increasing antioxidant enzyme activities.
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NO levels were increased with both chronic exercise and GSE supplementation. Superoxide dismutase and glutathione peroxidase activities were lower in the acute exercised groups and higher in the chronic exercised groups. GSE supplementation caused an increase in antioxidant enzyme activities. 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NO levels were increased with both chronic exercise and GSE supplementation. Superoxide dismutase and glutathione peroxidase activities were lower in the acute exercised groups and higher in the chronic exercised groups. GSE supplementation caused an increase in antioxidant enzyme activities. 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A total of sixty-four male rats were used in the study. Rats were divided into six groups: control, chronic exercise control, acute exercise control (AEC), GSE-supplemented control, GSE-supplemented chronic exercise and GSE-supplemented acute exercise groups. Chronic exercise consisted of treadmill running at 25 m/min, 45 min/d, 5 d a week for 6 weeks. Rats in the acute exercise groups were run on the treadmill at 30 m/min until exhaustion. GSE were given at 100 mg/kg of body weight with drinking water for 6 weeks. Plasma was separated from blood samples for the analysis of oxidative stress markers. There was no significant difference in time of exhaustion between the acute exercise groups. Plasma malondialdehyde (MDA) levels were higher in the acute exercise groups and lower in the chronic exercise groups. GSE supplementation decreased MDA levels. Xanthine oxidase and adenosine deaminase activities were higher in the AEC group compared to all the other groups. NO levels were increased with both chronic exercise and GSE supplementation. Superoxide dismutase and glutathione peroxidase activities were lower in the acute exercised groups and higher in the chronic exercised groups. GSE supplementation caused an increase in antioxidant enzyme activities. In conclusion, GSE supplementation prevents exercise-induced oxidative stress by preventing lipid peroxidation and increasing antioxidant enzyme activities.</abstract><cop>Cambridge</cop><pub>Cambridge University Press</pub><pmid>22011589</pmid><doi>10.1017/S0007114511005496</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Adenosine Deaminase - blood
Animals
Antioxidants
Antioxidants - therapeutic use
Biological and medical sciences
Biomarkers - blood
Body weight
Dietary Supplements
Drinking water
Enzymatic activity
Enzymes
Exercise
Fatigue - blood
Fatigue - enzymology
Fatigue - prevention & control
Feeding. Feeding behavior
Fundamental and applied biological sciences. Psychology
Grape Seed Extract - therapeutic use
Lipid Peroxidation
Male
Malondialdehyde - blood
Membrane Proteins - blood
Motor Activity
Nitric Oxide - blood
Nutrition research
Oxidative Stress
Oxidoreductases - blood
Performance-Enhancing Substances - therapeutic use
Peroxidation
Physical Conditioning, Animal - adverse effects
Proanthocyanidins - therapeutic use
Random Allocation
Rats
Rats, Sprague-Dawley
Rodents
Running
Vertebrates: anatomy and physiology, studies on body, several organs or systems
title Effects of grape seed extract supplementation on exercise-induced oxidative stress in rats
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