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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2005, Vol. 10 ›› Issue (7): 764-767.

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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

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), O2.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 O2.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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