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  本文關鍵詞：運動及心理應激對大鼠不同部位SOD活性的影響　出處：《吉林大學》2009年碩士論文　論文類型：學位論文

  更多相關文章： 運動負荷 心理應激 超氧化歧化酶(SOD)

【摘要】： 有關氧自由基的理論一直是運動醫(yī)學領域研究的熱點問題。所謂氧自由基,就是當機體進行代謝時,能奪去氧的一個電子,這個氧原子就變成自由基。自由基作為人體垃圾,能夠促使某些疾病的發(fā)生和機體的衰老。超氧化歧化酶又稱過氧化物歧化酶(Superoxide Dismutase, SOD) ,這種活性酶能專一地清除體內(nèi)有害的自由基,以解除自由基氧化體內(nèi)的某些組成成分而造成的機體損害。大量現(xiàn)代醫(yī)學研究證明,SOD是人體內(nèi)的一種最重要的細胞保護酶,既能防輻射損傷,又能有效地抵抗過氧化陰離子自由基,從而延緩衰老,調(diào)節(jié)機體代謝能力,提高人體自身的免疫功能。但是,究竟何種運動強度會使機體在運動后抗氧化能力增強,還有待于進一步研究。本實驗通過對大鼠進行不同強度的運動訓練及心理應激干預,探討不同的運動負荷及心理應激對大鼠機體內(nèi)SOD的抗氧化能力的影響。 實驗采用游泳方式對體重為350g-400g的大鼠進行中等強度(每天訓練30min)、大強度(每天訓練60min)、大強度心理應激(每天在容器內(nèi)進行刺激后運動60min)的運動訓練,訓練8周后處死。取大鼠腹腔動脈血,離心后提取血清,肝臟、腎臟、心臟組織制取組織勻漿,采用比色法(試劑盒)測定各組大鼠血清及組織樣本中的SOD。 結果表明:不同運動強度和心理應激對大鼠機體抗氧化能力產(chǎn)生不同的影響。與對照組比較,中等強度、大強度、大強度運動加心理應激干預使機體的抗氧化能力均提高;但在不同組織內(nèi)的SOD水平變化不同。
[Abstract]:The oxygen free radical theory is always a hot topic in the field of sports medicine. The oxygen free radical, is when the body for metabolism, oxygen can take an electron, the oxygen atoms become free radicals. The free radicals as human waste, can promote the occurrence of certain diseases and the aging body. Superoxide dismutase and superoxide dismutase (Superoxide Dismutase, SOD), the enzyme activity can only remove the body of harmful free radicals, the damage to remove certain components of the body caused by free radical oxidation. Studies show that lots of modern medicine, SOD is one of the most important protective enzyme in human body the both radiation damage, and can effectively resist the superoxide anion radical, thus delaying senescence, regulating body metabolism, improve the body's own immune function. However, what kind of strength will make the machine movement Further study is needed to improve the antioxidant capacity of the body after exercise. In this experiment, rats were subjected to different intensity of exercise training and psychological stress intervention to explore the effects of different exercise loads and psychological stress on the antioxidant capacity of SOD in rats.
The swimming on body weight of 350g-400g rats with moderate intensity (training day 30min), high intensity (training day 60min), high intensity and psychological stress (exercise stimulation in the container every day after 60min) training, training 8 weeks later. The rats abdominal cavity blood after centrifugal extraction serum, liver, kidney, heart tissue homogenate preparation, using colorimetric method (Kit) for determination of serum and tissue samples of SOD. rats
The results show that the different intensity of exercise and psychological stress have different effects on antioxidant capacity in rats. Compared with control group, moderate intensity, high intensity, high intensity exercise intervention psychological stress increases the body's antioxidant capacity were improved; but in different tissues SOD level changes are different.

【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2009
【分類號】：R363

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本文編號：1365877