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食品研究与开发:2018,39(24):174-179
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白藜芦醇抗疲劳作用及其机理研究
(河南工业大学体育学院,河南郑州450001)
Effect and Mechanism of Resveratrol for Anti-fatigue
(Physical Education Institute,Henan University of Technology,Zhengzhou 450001,Henan,China)
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投稿时间:2018-06-11    
中文摘要: 为了探讨白藜芦醇抗疲劳作用效果及其可能的作用机理,采用力竭训练动物模型,将大鼠分为空白对照组、低剂量白藜芦醇组、中剂量白藜芦醇组、高剂量白藜芦醇组,各组连续灌胃蒸馏水或不同剂量白藜芦醇。灌胃4周后进行力竭跑步实验,测定力竭时间以及血乳酸(blood lactic acid,BLA)、血尿素氮(blood urea nitrogen,BUN)、肝糖原、肌糖原、超氧化物歧化酶(superoxide dismutase,SOD),谷胱甘肽过氧化物酶(glutathione peroxidase,GPx),过氧化氢酶(catalase,CAT)、丙二醛(malondialdehyde,MDA)等疲劳相关生化指标。结果发现,白藜芦醇具有抗疲劳作用,其能延长大鼠力竭跑步时间;降低BLA、BUN、肝组织中MDA含量;增加肝、肌糖原以及肝组织中SOD、GPx、CAT含量。白藜芦醇抗疲劳机理可能是:1)白藜芦醇能降低代谢产物的堆积或快速清除代谢产物;2)白藜芦醇能改善运动代谢控制和能量代谢活化;3)白藜芦醇能提高体内抗氧化酶活性,与内源性抗氧化剂形成协同抗氧化网络来降低氧化应激;4)白藜芦醇能减少自由基引起的脂质过氧化,保护肝细胞膜完整性。白藜芦醇有可能成为一种新的功能性食品或营养补剂应用在运动营养领域。
中文关键词: 白藜芦醇  抗疲劳  大鼠  力竭跑步训练  机理
Abstract:The present study was designed to determine the effect and mechanism of resveratrol for anti-fatigue through exhaustive treadmill exercise model.The rats were divided into 4 groups,namely the control(C),lowdose resveratrol,medium-dose resveratrol and high-dose resveratrol groups,which received distilled water and various doses of resveratrol for 4 weeks.After 4 weeks,the rats were subjected to the exhaustive treadmill exercise;the exhaustive time and fatigue-related biochemical parameters,including blood lactic acid(BLA),blood urea nitrogen (BUN),liver glycogen,muscle glycogen,and superoxide dismutase(SOD),glutathione peroxidase(GPx),catalase(CAT),malondialdehyde(MDA)in liver,were measured.The result showed that resveratrol had an anti-fatigue effect,which prolonged exhaustive time,decreasing the levels of BLA,BUN and MDA in liver,increasing the levels of liver glycogen,muscle glycogen,and SOD,GPx,CAT in liver.The anti-fatigue mechanisms of resveratrol might be attributable to various factors:1)resveratrol could reduce the accumulation of metabolites or rapidly remove metabolites;2)resveratrol could improve exercise metabolism control and energy metabolism activation;3)resveratrol could increase antioxidant enzyme activities in vivo,forming a synergistic antioxidant network with endogenous antioxidants to reduce oxidative stress;4)resveratrol can reduce free radical-induced lipid peroxidation and protect liver cell membrane integrity.Resveratrol may be used as a new functional food or anti-fatigue supplement in sports nutrition.
文章编号:201824030     中图分类号:    文献标志码:
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