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Role of taurine supplementation to prevent exercise-induced oxidative stress in healthy young men

机译:补充牛磺酸在预防健康青年男性运动引起的氧化应激中的作用

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摘要

To evaluate the protective effects of taurine supplementation on exercise-induced oxidative stress and exercise performance, eleven men aged 18-20 years were selected to participate in two identical bicycle ergometer exercises until exhaustion. Single cell gel assay (SCG assay) was used to study DNA damage in white blood cells (WBC). Pre-supple-mentation of taurine, a significant negative correlation was found between plasma taurine concentration before exercise and plasma thiobaribituric-acid reactive substance (TBARS) 6 hr after exercise (r= -0.642, p<0.05). WBC showed a significant increase in DNA strand breakage 6 hr and 24 hr after exercise. Seven-day taurine supplementation reduced serum TBARS before exercise (p<0.05) and resulted in a significantly reduced DNA migration 24 hr after exercise (p<0.01). Significant increases were also found in VO2max, exercise time to exhaustion and maximal workload in test with taurine supplementation (p<0.05). After supplementation, the change in taurine concentration showed positive correlations with the changes in exercise time to exhaustion and maximal workload. The results suggest that taurine may attenuate exercise-induced DNA damage and enhance the capacity of exercise due to its cellular protective properties.
机译:为了评估牛磺酸补充剂对运动引起的氧化应激和运动表现的保护作用,选择了11名年龄在18-20岁之间的男性参加两次相同的自行车测功计运动,直到筋疲力尽。单细胞凝胶测定(SCG测定)用于研究白细胞(WBC)中的DNA损伤。补充牛磺酸前,运动前血浆牛磺酸浓度与运动后6小时血浆硫代巴比妥酸反应性物质(TBARS)呈显着负相关(r = -0.642,p <0.05)。运动后6小时和24小时,WBC显示DNA链断裂显着增加。补充牛磺酸7天可降低运动前的血清TBARS(p <0.05),并导致运动后24小时的DNA迁移显着降低(p <0.01)。在补充牛磺酸的试验中,最大摄氧量,运动至精疲力竭和最大工作量也显着增加(p <0.05)。补充后,牛磺酸浓度的变化与运动至疲惫的时间和最大工作量的变化呈正相关。结果表明,牛磺酸由于其细胞保护特性,可以减轻运动引起的DNA损伤并增强运动能力。

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