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首页> 外文期刊>Journal of Clinical and Diagnostic Research >The Effect Of VC On Immunoendocrine And Oxidative Stress Responses To Exercise
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The Effect Of VC On Immunoendocrine And Oxidative Stress Responses To Exercise

机译:VC对运动中免疫内分泌和氧化应激反应的影响

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The depression of the immune system function that is typically observed after strenuous exercise is believed to be possibly mediated by stress hormones, cytokines and oxidative stress. The aim of this study was to measure immunoendocrine and oxidative stress responses after the ingestion of two different doses of Vitamin C (VC) supplementation. Twenty-four healthy untrained males participated in a 30-min exercise at 75%Vo2max. Immediately pre-exercise, the participants received either of the following regimens: placebo, 500 mg and 1000 mg of VC. Blood samples were obtained prior to ingestion, immediately after ingestion, 2hrs after ingestion and also 2hrs and 24hrs after exercise.Vitamin C used in doses of 500 mg and 1000 mg could significantly increase the plasma VC concentration and antioxidant capacity in both vitamin receiving groups. The increase in total antioxidant capacity (TAC) followed a significant decrease in post-exercise oxidative stress markers like malondialdehyde (MDA) (P<0.05). Markers of inflammation (total leukocytes, neutrophils and IL-6), muscle damage, creatine kinase (CK) and stress hormone (cortisol) were found to significantly increase in response to the exercise (P<0.05), but VC supplementation failed to decrease these factors significantly. The results suggest that acute supplementation with moderate and high doses of VC might prevent exercise-induced lipid peroxidation but not inflammatory markers.
机译:人们认为,剧烈运动后通常会观察到的免疫系统功能下降可能是由应激激素,细胞因子和氧化应激介导的。这项研究的目的是测量摄入两种不同剂量的维生素C(VC)后的免疫内分泌和氧化应激反应。 24名健康未经训练的男性参加了30分钟的运动,运动量为75%Vo2max。立即运动前,参与者接受以下两种治疗方案之一:安慰剂,500 mg和1000 mg VC。摄入前,摄入后,摄入后2小时以及运动后2小时和24小时均采集血样.500 mg和1000 mg剂量的维生素C可以显着提高两个维生素接收组的血浆VC浓度和抗氧化能力。运动后的氧化应激指标如丙二醛(MDA)显着下降,总抗氧化剂能力(TAC)的增加(P <0.05)。炎症反应(总白细胞,中性粒细胞和IL-6),肌肉损伤,肌酸激酶(CK)和应激激素(皮质醇)的标记随运动而显着增加(P <0.05),但补充VC未能减少这些因素明显。结果表明,中,高剂量VC的急性补充可能会预防运动引起的脂质过氧化,但不能阻止炎症标记。

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