Protective effect of fluvastatin on ischemic reperfused myocardium in rabbits |
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Authors: | DAI Shu-hua JIANG Xue-jun LI Jian-jun CHEN Li QIN Jin-mei |
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Institution: | 1.Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China;2.Research Centre of Cardiology, Qinghua University, Beijing 100016, China |
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Abstract: | AIM: To investigate the protective effect of fluvastatin and its influence on ICAM-1 mRNA expression in ischemia/reperfusion myocardium of normocholesterolemic rabbits. METHODS: 24 rabbits were divided into three groups randomly and myocardial ischemia/reperfusion model in the rabbit was made. Rabbits were subjected to 45 min of regional myocardial ischemia and 2 h of reperfusion. 10 mg·kg-1·d-1 fluvastatin were administered for one week. Dynamic index of blood flow was recorded and analyzed. Serum activity of CK, CKMB, LDH and LDH-1 were measured. The expression of ICAM-1 mRNA in ischemic myocardium was detected with semi-quantitative RT-PCR. RESULTS: In comparison with control group, pretreatment with fluvastatin decreased LVEDP at the whole observed duration, and spontaneously increased ±dp/dtmax. Serum activities of CK, CKMB and LDH-1 in control group were significantly higher than those in sham group, but heavily reduced in fluvastatin group. Increased expression of ICAM-1 mRNA due to ischemia reperfusion was reduced significantly in fluvastatin group compare to control group. CONCLUSION: Pretreatment of fluvastatin may reduce inflammation reaction in reperfused myocardium, and this may contribute to its protective effect against experimental myocardial ischemia reperfusion injury. |
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