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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), $O^{-}_{2}$.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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