食品科学 ›› 0, Vol. ›› Issue (): 0-0.

• 营养卫生 •    下一篇

亚精胺对小鼠骨骼肌自由基代谢及抗疲劳效果研究

何恩鹏,汤莉莉,郭玉江   

  1. 新疆师范大学
  • 收稿日期:2013-05-28 修回日期:2014-04-08 出版日期:2014-05-15 发布日期:2014-05-19
  • 通讯作者: 何恩鹏 E-mail:heenpeng@sina.com
  • 基金资助:
    国家自然科学基金地区项目;新疆师范大学运动人体科学重点实验室基金

The Effects of Spermidine on Free Radicals’ Metabolism of the Skeletal Muscle and Anti-fatigue in mouse

HE Enpeng 2, 2   

  • Received:2013-05-28 Revised:2014-04-08 Online:2014-05-15 Published:2014-05-19
  • Contact: HE Enpeng E-mail:heenpeng@sina.com

摘要: 目的:研究亚精胺(spermidine,SPD)对骨骼肌自由基代谢的影响以及抗疲劳作用。方法:实验分为生理盐水组、SPD低剂量组(0.5mmol/kg)、中剂量组(1.0mmol/kg)、高剂量组(1.5mmol/kg)以及西洋参口服液阳性对照组(总皂苷30mg/kg),每周灌胃6d共30d,每次灌胃前称量小鼠体重调整灌胃溶液量,灌胃期间进行每天45min无负重游泳训练。各组随机选取10只小鼠测试力竭游泳时间;各组剩余10只负重游泳30min,休息30min后取材,检测血清肌酸激酶(creatine kinase,CK)、骨骼肌谷胱甘肽-过氧化物酶(glutathione peroxidase,GSH-Px)、总超氧化物歧化酶(total-superoxide dismutase,T-SOD)、琥珀酸脱氢酶(succinate dehydrogenase,SDH)活性和骨骼肌丙二醛(malondialdehyde,MDA)含量。结果:与阴性对照组比较,SPD能显著延长小鼠力竭游泳时间(P<0.01);低、中剂量组骨骼肌中GSH-Px、T-SOD、SDH酶活性显著提高(P<0.01),MDA含量显著降低(P<0.01);SPD组与西洋参组比较,低、中剂量抗疲劳效果差异有非常显著性(P<0.01),高剂量抗疲劳效果略优(P>0.05)。结论:30~60mmol/L SPD可以增加抗氧化酶的活性,减少自由基的积累,提高骨骼肌细胞膜代谢能力和抗损伤能力,显著推迟小鼠疲劳发生。

关键词: 亚精胺(SPD), 疲劳, 谷胱甘肽-过氧化物酶(GSH-Px), 丙二醛(MDA), 琥珀酸脱氢酶(SDH)

Abstract: Objective: This paper tries to study the effects of spermidine on free radicals’ metabolism of the skeletal muscle and anti-fatigue of mouse. Method: Negative control group, SPD low dose group, middle dose group, high dose group(0.5、1.0、1.5mmol/kg) and American ginseng oral liquid positive control group were placed during the process of this experiment (total saponins is 30mg/kg). The mice swam 6 days each week without load and there are 30 days in total, which lasting for 45 minutes each day. 10 mice were sampled randomly from each group to test the time of exhausting swim. The other 10 mice of each group swam 30 minutes with load and were dissected after resting 30 minutes in order to detect the content of serum CK, skeletal muscle GSH - Px, T-SOD, SDH activity and skeletal muscle MDA. Results: Comparing with the negative control group, it shows significant difference with the following results, SPD can prolong the exhausting swimming time of mice (P<0.01); the activity of GSH-Px, T-SOD and SDH are improved in skeletal muscle (P<0.01). Furthermore, the content of MDA is reduced (P<0.01). Comparing with the group of American ginseng, effects of low and medium dose group of SPD show significant difference on resisting sport fatigue (P<0.01), and the high dose group is better than American ginseng too , but have no significant difference(P>0.05). Conclusion: It can be concluded that dose of 30-60mmol/L of SPD can increase the activity of antioxidant enzymes and reduce the accumulation of free radicals. SPD can improve the metabolism of skeletal muscle and level on resisting injury, and delay the exercise fatigue in mouse significantly. Therefore, SPD is an excellent tonic for Anti-fatigue.

Key words: Spermidine, Sports Fatigue, Glutathione Peroxidase, Malondialdehyde, Succinate Dehydrogenase

中图分类号: