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刘 霞,李素云,周春仙.茶多酚对急性运动后大鼠骨骼肌组织损伤的保护作用[J].中国康复医学杂志,2011,26(5):455~458
茶多酚对急性运动后大鼠骨骼肌组织损伤的保护作用    点此下载全文
刘 霞  李素云  周春仙
上海中医药大学,201203
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摘要:
      摘要 目的:探讨茶多酚对急性运动后大鼠骨骼肌组织损伤的保护作用。 方法:30只SD大鼠分为对照组(A)、运动组(B)和运动加茶多酚组(C),建立力竭运动模型,1周后测试骨骼肌组织钙离子(Ca2+)含量、钠泵(Na+-K+-ATP酶)和钙泵(Ca2+-ATP酶)活性,以及在电镜和光镜下观察腓肠肌的形态和超微结构的变化。 结果:运动组与对照组相比,骨骼肌组织Ca2+含量显著升高(P<0.05),Ca2+-ATP酶和Na+-K+-ATP酶的显著下降(P<0.05),运动加茶多酚组与运动组相比,骨骼肌Ca2+含量显著减少(P<0.05),Ca2+-ATP酶活性有上升趋势,Na+-K+-ATP酶活性显著升高(P<0.05)。光镜和电镜观察运动组有明显的形态学变化和超微结构的损伤,运动加茶多酚组的超微结构损伤有明显改善。 结论:茶多酚可降低急性运动后骨骼肌组织中钙离子的含量,修复骨骼肌组织的损伤。
关键词:茶多酚  骨骼肌  三磷酸腺苷酶  钙离子  组织结构  力竭运动
The protective effects of tea polyphenol on rats' skeletal muscle tissue injury caused by acute exercise    Download Fulltext
Dept. of Nutrition, Shanghai Traditional Chinese Medical University,201203
Fund Project:
Abstract:
      Abstract Objective: To approach the protection effects of tea polyphenol on rats' skeletal muscle tissue injury caused by acute exercise. Method:Thirty rats were randomly divided into 3 groups, control group(A), exercise group (B) and exercise with tea polyphenol group(C). The rat model of acute exhausted exercise was established. One week later the content of Ca2+, the activities of Na+-K+-ATPase and Ca2+-ATPase in skeletal muscles were measured, and the changes of morphology and altrastructure of gastrocnemius were observed under optical and electric microscopes. Result: Compared with A group, the content of Ca2+ increased(P<0.05),activities of Ca2+-ATPase and Na+-K+-ATPase dropped(P<0.05) in B group. Compared with B group, the content of Ca2+ decreased(P<0.05), actrivity of Ca2+-ATPase had rising tendency and activity of Na+-K+-ATPase rose(P<0.05) in C group. Evident morphological changes and ultrastructure injury were observed in B group, but in C group ultrastructure injury was lighter than those in B group. Conclusion: Tea polyphenol can reduce the content of Ca2+ in skeleton muscles after acute exercise and repair the skeletal muscle tissue injury caused by acute exercise.
Keywords:tea polyphenol  skeletal muscle  Adenosine triphosphatase  tissue structure  exhaustive exercise
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