中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (2): 165-170.doi: 10.12307/2022.028

• 组织构建实验造模 experimental modeling in tissue construction •    下一篇

左旋肉碱、泛酸、辅酶Q10联合干预有氧运动疲劳模型小鼠的作用及机制

贾瑞真1,姜  超2,金其贯1,娄旭佳1,胡玉龙1   

  1. 1扬州大学体育学院,江苏省扬州市   225000;2西安杨森制药有限公司核心产品事业部,江苏省苏州市   215000
  • 收稿日期:2021-01-30 修回日期:2021-02-08 接受日期:2021-03-16 出版日期:2022-01-18 发布日期:2021-10-26
  • 通讯作者: 胡玉龙,博士,副教授,扬州大学体育学院运动人体科学教研室,江苏省扬州市 225000
  • 作者简介:贾瑞真,女,1995年生,山东省临沂市人,汉族,扬州大学体育学院在读硕士,主要从事运动营养补充剂的应用和机制研究。
  • 基金资助:
    2016年度国家重点研发计划(2016YFD0400603-02),项目负责人:金其贯

Effects and mechanism of the combined use of L-carnitine, pantothenic acid and coenzyme Q10 on aerobic exercise-induced fatigue in mice

Jia Ruizhen1, Jiang Chao2, Jin Qiguan1, Lou Xujia1, Hu Yulong1   

  1. 1School of Physical Education, Yangzhou University, Yangzhou 225000, Jiangsu Province, China; 2Core Product Department of Xian-Janssen Pharmaceutical Ltd., Suzhou 215000, Jiangsu Province, China
  • Received:2021-01-30 Revised:2021-02-08 Accepted:2021-03-16 Online:2022-01-18 Published:2021-10-26
  • Contact: u Yulong, MD, Associate professor, School of Physical Education, Yangzhou University, Yangzhou 225000, Jiangsu Province, China
  • About author:Jia Ruizhen, Master candidate, School of Physical Education, Yangzhou University, Yangzhou 225000, Jiangsu Province, China
  • Supported by:
    the 2016 National Key Research and Development Plan, No. 2016YFD0400603-02 (to JQG)

摘要:

文题释义:
泛酸:是能源物质代谢过程中酰基载体的提供者,可促进糖、脂肪等物质的分解,同时在清除氧自由基方面也有明显作用。
辅酶Q10:是线粒体氧化呼吸链中的重要辅酶,承担质子和电子传递的作用,在ATP生成中起着重要作用。同时辅酶Q10也是体内唯一的可再生的脂溶性抗氧化剂,能有效清除氧自由基,对抗氧化功能起到保护作用。
运动性疲劳:由运动引起的机体处于持续性或重度疲劳状态,内环境发生紊乱,机体的生理过程不能持续其功能在一特定水平和或不能维持预定的运动强度。

背景:已有研究证实,左旋肉碱、泛酸、辅酶Q10等营养因子能改善机体能量代谢,是能量转换过程中必不可少的成分,联合使用这3种营养因子是否能产生更好的运动疲劳保护效应,目前还不是很清楚。
目的:探讨联合使用左旋肉碱、泛酸、辅酶Q10对小鼠运动性疲劳是否具有改善作用,联合使用的最佳组合方式以及改善运动性疲劳的作用机制。
方法:①动物分组:雄性ICR小鼠100只,利用正交设计原理,设定4种因素分别为左旋肉碱(A)、泛酸(B)、辅酶Q10(C)营养因子及游泳运动(D),3种剂量水平营养因子分别为水平1(不使用)、水平2(治疗剂量)、水平3(3倍治疗剂量),将小鼠分为9组,另设1组运动对照组,共10组,每组10只小鼠;②建立有氧运动疲劳模型:9组小鼠每天负重5%游泳1 h,每周6 d,在第5周结束时,进行一次力竭运动,记录力竭时间,再继续运动1周,实验共6周;营养因子给药方式为运动前1 h经口灌胃;③检测指标:实验分为正常对照组、运动对照组及运动联合补充泛酸+辅酶Q10营养因子组(简称运动联合营养因子组,力竭时间最长)3组;第6周末运动结束24 h后,检测小鼠血清尿素氮、血清及肌肉组织超氧化物歧化酶、丙二醛的水平。实验方案已于2019-09-15经扬州大学动物科学与技术学院动物伦理委员会批准。
结果与结论:①对小鼠负重游泳力竭时间的影响:从大到小依次为运动>泛酸>辅酶Q10>左旋肉碱,力竭时间最长的为A1B3C3D2组合方式(运动联合营养因子组);②血清尿素氮水平:运动对照组明显高于正常对照组(P < 0.05);运动联合营养因子组显著低于运动对照组(P < 0.01);③血清及肌肉组织超氧化物歧化酶水平:运动对照组小鼠均显著低于正常对照组(均P < 0.01);运动联合营养因子组明显高于运动对照组(均P < 0.05);④血清及肌肉组织丙二醛含量:运动对照组小鼠均明显高于正常对照组(均P < 0.05);运动联合营养因子组均明显低于运动对照组(均P < 0.05);⑤结果表明,运动联合补充泛酸+辅酶Q10营养因子可以通过加强机体抗氧化能力、降低氧化应激水平,从而延长运动时间,延缓运动性疲劳的发生。

https://orcid.org/0000-0003-2134-2088 (贾瑞真);https://orcid.org/0000-0002-3139-8061 (胡玉龙) 

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程


关键词: 运动性疲劳, 左旋肉碱, 泛酸, 辅酶Q10

Abstract: BACKGROUND: Previous studies have confirmed that L-carnitine, pantothenic acid, coenzyme Q10 and other nutritional factors can improve the body’s energy metabolism, which are essential components in the energy conversion process. Whether a combination of these three nutritional factors produces better protection against exercise fatigue is not yet clear.
OBJECTIVE: To explore whether the combined use of L-carnitine, pantothenic acid, and coenzyme Q10 can improve exercise-induced fatigue in mice, the best combination and the mechanism of improvement in exercise-induced fatigue.
METHODS: (1) Animal grouping: Using the principle of orthogonal design, 90 male ICR mice were divided into 10 groups according to different nutritional factors (L-carnitine (A), pantothenic acid (B), and coenzyme Q10 (C)), different dosages (dose 1: no use; dose 2: therapeutic dose; dose 3: three times the therapeutic dose), and whether to swim training or not (D). Another 10 mice were enrolled in exercise control group. (2) Establishment of an aerobic exercise-induced fatigue model: All the mice swam for 1 hour with 5% weight per day, 6 days a week, for 6 weeks. At the end of the 5th week, the mice in the former nine groups were performed with an exhaustion swimming and the exhaustion time was recorded. Nutritional factors were administered by oral gavage 1 hour before exercise. (3) Detection index: There were three experimental groups: normal control group, exercise control group, and exercise+pantothenic acid+Q10 group (exercise+nutritional factor group with the longest duration of exhaustion). At 24 hours after the end of 6-week exercise, the levels of blood urea nitrogen, superoxide dismutase, and malondialdehyde in serum and muscle tissue were detected. This experimental protocol was approved by the Animal Ethics Committee of Yangzhou University on September 15, 2019.
RESULTS AND CONCLUSION: (1) Effects on weight-bearing swimming exhaustion time were ranked as follows: exercise > pantothenic acid > coenzyme Q10 > L-carnitine. The group with the longest exhaustion time was A1B3C3D2 combination (exercise+nutritional factor group). (2) The blood urea nitrogen level of the exercise control group was significantly higher than the normal control group (P < 0.05). The blood urea nitrogen level of exercise+nutritional factor group was significantly lower than that of the exercise control group (P < 0.01). (3) The superoxide dismutase levels in serum and muscle tissue of the exercise control group were significantly lower than those of the normal control group (both P < 0.01). The superoxide dismutase levels in serum and muscle tissue of the exercise+nutritional factor group  were significantly higher than those of the exercise control group (both P < 0.05). (4) The malondialdehyde levels in serum and muscle tissue of the exercise control group were significantly higher than those of the normal control group (both P < 0.05). The malondialdehyde levels in serum and muscle tissue of the exercise+nutritional factor group were significantly lower than those of the exercise control group (both P < 0.05). To conclude, exercise combined with pantothenic acid+nutritional factors strengthens the body's antioxidant capacity and reduces oxidative stress levels, thereby prolonging exercise time and delaying the occurrence of exercise-induced fatigue.

Key words: exercise-induced fatigue, L-carnitine, pantothenic acid, coenzyme Q10

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