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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (7): 764-767.

• 研究原著 • 上一篇    下一篇

西红花酸对阿霉素所致大鼠心肌线粒体损伤的影响

李文娜1,2, 钱之玉1   

  1. 1中国药科大学药理教研室, 南京210009, 江苏;
    2遵义医学院珠海校区, 珠海519041, 广东
  • 收稿日期:2005-05-31 修回日期:2005-06-13 出版日期:2005-07-26 发布日期:2020-11-10
  • 通讯作者: 钱之玉, 男, 教授, 博士生导师, 主要从事生化药理和新药研究。Tel:025-83271322 E-mail: Qianzhiyu66@126.com
  • 作者简介:李文娜, 女, 博士研究生, 讲师, 主要从事生化药理和新药研究。E-mail: lielizabeth@126.com

Effects of crocetin on doxorubicin-induced damage in rats with myocardial mitochondria

LI Wen-na, QIAN Zhi-yu   

  1. 1Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, Jiangsu, China;
    2Department of Zhuhai, Zunyi Medical College, Zhuhai 519041, Guangdong, China
  • Received:2005-05-31 Revised:2005-06-13 Online:2005-07-26 Published:2020-11-10

摘要: 目的: 研究西红花酸对阿霉素所致大鼠心肌线粒体损伤的保护作用。方法: 建立阿霉素致大鼠心脏毒性模型, 观察西红花酸对心肌线粒体膜电位、线粒体DNA 断裂程度、细胞色素C 氧化酶活性及其亚基IImRNA 表达的影响;测定心肌线粒体超氧阴离子含量及谷胱甘肽过氧化物酶(GSH-PX)活性。结果: 与模型组相比, 西红花酸可明显升高线粒体膜电位, 降低线粒体DNA 断裂程度, 提高细胞色素C氧化酶活性及其亚基IImRNA 表达水平, 显著降低心肌线粒体超氧阴离子含量, 提高GSH-PX 活性。结论: 西红花酸能明显减轻阿霉素所致大鼠心肌线粒体损伤。

关键词: 西红花酸, 阿霉素, 线粒体, 细胞色素C 氧化酶亚基II(COII)

Abstract: AIM: To study the protective effects of crocetin on the doxorubicin-induced damage in rats with myocardial mitochondria. METHODS: Rats were given intraperitoneal injection of doxorubicin to induce cardiotoxicity. After continuous oral administration of crocetin, the rats were sacrificed, and myocardial mitochondria were isolated. The mitochondrial membrane potential (MMP), $O^{-}_{2}$.production, the activity of respiratory chain complex IV and glutathione peroxidase (GSH-PX), and DNA fragmentation were determined. The expression level of COII gene was determined through RT-PCR. RESULTS: Crocetin increased the activity of respiratory chain complex IV and GSH-PX, MMP and the expression level of COII and decreased DNA fragmentation and superoxide anion radical $O^{-}_{2}$.production in rats with myocardial mitochondria. CONCLUSION: Crocetin may decrease the damage in rat myocardial mitochondria induced by doxorubicin.

Key words: crocetin, doxorubicin, mitochondria, cytochrome C oxidase subunit II (COII)

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