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本文以适量游泳和疲劳游泳的小鼠通过灌服银杏叶提取物建立动物实验模型，观察其心肌线粒体的抗氧化酶的活力和脂质过氧化水平。灌服银杏叶提取物的小鼠通过适量游泳和疲劳游泳后，抗氧化酶（ＳＯＤ）的活力均显著高于各自的对照组，丙二醛（ＭＤＡ）的含量均显著低于各自的对照组。结果提示，通过服用银杏叶提取物可减轻由运动产生的内源性自由基对小鼠的伤害，银杏叶提取物具有较强的抗自由基损伤和抗脂质过氧化损伤的作用，是天然的自由基清除剂。
In this paper, moderate swimming and fatigue swimming mice by gavage with Ginkgo biloba extract animal model established to observe myocardial mitochondrial antioxidant enzyme activity and lipid peroxidation level. Mice fed Ginkgo biloba extract had significantly higher activities of antioxidant enzymes (SOD) than those of their control groups through moderate swimming and fatigue swimming, and their MDA contents were significantly lower than those of their respective control groups . The results suggest that by taking Ginkgo biloba extract can reduce endogenous free radicals generated by exercise on mice, Ginkgo biloba extract has a strong anti-free radical damage and anti-lipid peroxidation damage is a natural Free radical scavenger.