中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (2): 309-314.doi: 10.3969/j.issn.2095-4344.2013.02.022

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

原花青素干预大负荷运动大鼠腓肠肌相关凋亡蛋白的表达

闵 柱1,刘文杰2,耿 潇2,苏全生3   

  1. 1 南京师范大学体育科学学院, 江苏省南京市  210000
    2 成都体育学院研究生院,四川省成都市  610041
    3 成都体育学院运动人体科学教研室,四川省成都市  610041
  • 收稿日期:2012-03-15 修回日期:2012-05-30 出版日期:2013-01-08 发布日期:2013-01-08
  • 作者简介:闵柱★,男,1986年生,河北省石家庄市人,汉族,2011年成都体育学院毕业,硕士,讲师,主要从事运动生理学与运动康复学研究。413347660@qq.com

Procyanidins effects on apoptosis-related proteins in the gastrocnemius after heavy load training in rats

Min Zhu1, Liu Wen-jie2, Geng Xiao2, Su Quan-sheng3   

  1. 1  College of Physical Education, Nanjing Normal University, Nanjing 210000, Jiangsu Province, China
    2  Graduate School, Chengdu Sport University, Chengdu 610041, Sichuan Province, China
    3  Department of Sports Biomechanics, Chengdu Sport University, Chengdu 610041, Sichuan Province, China
  • Received:2012-03-15 Revised:2012-05-30 Online:2013-01-08 Published:2013-01-08
  • About author:Min Zhu★, Master, Lecturer, College of Physical Education, Nanjing Normal University, Nanjing 210000, Jiangsu Province, China 413347660@qq.com

摘要:

背景:大负荷运动后给机体带来的损伤与运动后延迟性肌肉酸痛及运动疲劳有相关性。
目的:观察原花青素对大负荷运动后大鼠腓肠肌自由基代谢和细胞凋亡相关蛋白FAS、肿瘤坏死因子表达的影响。
方法:48只成年雌性SD大鼠随机均分为2组。给药组每日灌服10 g/L原花青素水溶液,安慰剂组灌服等量蒸馏水,再将2组大鼠随机分为安静组、运动后即刻及运动后24 h 3个亚组。2周后,除两安静组外其余各组进行一次坡度为-10°、20 m/min大负荷跑台运动。于运动前(安静时)、运动后即刻和运动后24 h断颈处死大鼠。取左后肢腓肠肌进行指标检测。
结果与结论:①运动后即刻两组超氧化物歧化酶活性有下降的趋势,其中给药组活性比安慰剂组下降的幅度小。运动后即刻两组丙二醛含量显著升高,其中安慰剂组升高的幅度高于给药组。运动后各时相给药组超氧化物歧化酶/丙二醛比值降低,幅度要明显小于安慰剂组。②运动后两组腓肠肌细胞FAS蛋白表达显著升高,安慰剂组FAS蛋白表达明显高于给药组。③运动后各时相安慰剂组肿瘤坏死因子表达明显高于给药组。表明原花青素对大鼠一次性大负荷运动后腓肠肌微损伤及凋亡在一定程度上有缓解和抑制作用。

关键词: 组织构建, 组织构建细胞学实验, 大负荷运动, 原花青素, 腓肠肌, 细胞凋亡, 自由基, 组织构建图片文章

Abstract:

BACKGROUND: It will bring a variety of negative effects to the body after heavy load training, which is related to delayed onset muscle soreness and exercise fatigue.
OBJECTIVE: To observe the effect of procyanidins on metabolism of free radicals, apoptosis-related protein FAS, and tumor necrosis factor in the gastrocnemius after heavy load training in rats.
METHODS: Totally 48 adult female Sprague-Dawley rats were randomly divided into placebo group and medication group, and each group was divided into three subgroups, including static control group, instantly post-exercise group and 24-hour post-exercise group. Rats of the medication group were fed with 10 g/L procyanidins by intragastric administration, and those in the placebo group were given equal volume of distilled water as placebo. After 2 weeks, in all groups expect two static control groups, a heavy load running with a slope of -10° at 20 m/min was performed. Rats were decapitated before exercise, instantly and 24 hours after exercise, respectively, and then gastrocnemius from the left hind limb was taken off for detection.
RESULTS AND CONCLUSION: (1) The gastrocnemius superoxide dismutase activity had a decrease tendency in the two instantly post-exercise groups, and the decline in superoxide dismutase activity was slighter in the medication group than the placebo group. The content of malondialdehyde increased significantly in the two instantly post-exercise groups, but the increase was smaller in the medication group than the placebo group. The ratio of superoxide dismutase and malondialdehyde decreased significantly after exercise, but compared with the placebo group, the decrease of the medication group was lower at every phase after exercise. (2) The expression of FAS protein in both groups increased significantly after exercise, and the increase of the placebo group was higher than the medication group. (3) The expression of tumor necrosis factor α was higher in the placebo group than the medication group at different phase after exercise. These findings indicate that to a certain extent, procyanidins could relieve the injury of gastrocnemius and restrain cell apoptosis after a heavy load exercise in rats.

Key words: tissue construction, cytological experiments of tissue construction, heavy load exercise, procyanidins, gastrocnemius, apoptosis, free radical, tissue construction photographs-containing paper

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