中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (18): 2711-2716.doi: 10.3969/j.issn.2095-4344.2016.18.019

• 运动医学动物模型 Animal models of sports medicine • 上一篇    下一篇

玛咖对力竭运动后老年模型大鼠肾脏线粒体呼吸功能及抗衰老能力的影响

彭丽娜,贾 鹏   

  1. 廊坊师范学院体育学院,河北省廊坊市  065000
  • 收稿日期:2016-03-05 出版日期:2016-04-29 发布日期:2016-04-29
  • 通讯作者: 彭丽娜,廊坊师范学院体育学院,河北省廊坊市 065000
  • 作者简介:彭丽娜,女,1983年生,河北省唐山市人,汉族,2009于西北师范大学毕业,硕士,讲师,主要从事运动性疲劳的发生机制及恢复手段研究。

Peng Li-na, Jia Peng (College of Physical Education, Langfang Teachers University, Langfang 065000, Hebei Province, China)

Peng Li-na, Jia Peng   

  1. College of Physical Education, Langfang Teachers University, Langfang 065000, Hebei Province, China
  • Received:2016-03-05 Online:2016-04-29 Published:2016-04-29
  • Contact: Peng Li-na, College of Physical Education, Langfang Teachers University, Langfang 065000, Hebei Province, China
  • About author:Peng Li-na, Master, Lecturer, College of Physical Education, Langfang Teachers University, Langfang 065000, Hebei Province, China

摘要:

文章快速阅读:

 

文题释义:
呼吸链:又叫电子传递链,它的作用是接受代谢物脱下的氢经过一系列的传递体,按一定顺序,最终传递给氧原子生成水和逐渐释放ATP的过程。
玛咖:是原产南美洲的一种十字花科植物,叶子椭圆,根茎形似小圆萝卜,可食用,是一种纯天然食品,富含多种营养成分,能延缓运动疲劳的发生,延迟人体衰老。玛咖提取物包含4 种生物碱、芥子油苷、多种维生素如蛋白质、氨基酸、多糖、矿物质和多种天然植物活性成分。
 
背景:研究表明,玛咖可增强细胞的免疫功能,提高线粒体呼吸链酶活性,起到抗氧化抗衰老的作用。
目的:观察玛咖对力竭运动后老年大鼠肾脏线粒体呼吸功能及抗衰老能力的影响。
方法:将10月龄老年大鼠每日灌胃1次玛咖粉剂(5 g/kg),同时进行递增负荷跑台运动,每周5 d,同时设对照组、玛咖组和运动组作对照。训练6周后,各组大鼠均进行力竭运动(35 m/min),随后即刻腹腔注射2%戊巴比妥钠麻醉大鼠取出肾脏,差速离心提取线粒体,分光光度计测定线粒体呼吸链酶活性。
结果与结论:①线粒体呼吸链酶及抗氧化酶活性:与对照组、玛咖组和运动组相比,玛咖+运动组线粒体呼吸链酶Ⅰ-Ⅲ、超氧化物歧化酶和谷胱甘肽过氧化物酶活性均升高(P < 0.05或P < 0.01)、丙二醛含量均降低(P < 0.05或P < 0.01);②结果说明:补充玛咖结合递增负荷运动训练均可提高力竭运动后老年大鼠肾脏线粒呼吸功能,延缓衰老,且补充玛咖与递增负荷运动具有协同效应。
中国组织工程研究杂志出版内容重点:肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程
ORCID: 0000-0001-6969-9727(彭丽娜)

关键词: 实验动物, 运动系统动物模型, 玛咖, 递增负荷, 力竭, 运动, 老年, 大鼠, 肾脏, 线粒体, 呼吸链酶, 抗衰老

Abstract:

BACKGROUND: Studies have shown that Maca can enhance immune cell function, improve mitochondrial respiratory chain enzymes, and play a role in anti-oxidation and anti-aging.
OBJECTIVE: To observe Maca effects on kidney mitochondrial respiratory function and anti-aging capabilities in elderly rats after exhausted exercise. 
METHODS: 10-month-old elderly rats were intragastrically administrated Maca powder 5 g/kg, once a day, and did treadmill exercise, 5 days in a week. Rats were randomly divided into control group, Maca group and training group and Maca+training group. At 6 weeks after training, rats in each group did exhausted exercise (35 m/min), and immediately received intraperitoneal injection of 2% sodium pentobarbital. The kidney was obtained, and mitochondria were extracted by differential centrifugation. A spectrophotometer was used to measure mitochondrial respiratory chain activity.
RESULTS AND CONCLUSION: (1) Mitochondrial respiratory chain enzyme and antioxidant enzyme activity: mitochondrial respiratory chain enzyme I-III, superoxide dismutase and glutathione peroxidase activities were higher in the Maca+training group than in the control group, Maca group and training group (P < 0.05 or P < 0.01), but malondialdehyde content was lower (P < 0.05 or P < 0.01). (2) Results suggested that the combination of supplement Maca and incremental exercise can improve mitochondrial respiratory function and delay aging in the kidney of aged rats after exhausted exercise. Moreover, supplemented Maca and incremental exercise have a synergistic effect.
中国组织工程研究杂志出版内容重点:肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程

Key words: Tissue Engineering, Models, Animal, Mitochondria