氟伐他汀对内膜损伤后动脉粥样硬化家兔内皮功能的改善作用
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The Effects of Fluvastatin on Endothelial, Coagulative and Fibrinolytic Functions in Experimental Atherosclerotic Rabbits
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    摘要:

    为观察氟伐他汀对实验性动脉粥样硬化家兔内皮系统及凝血纤溶系统功能的作用,将2 8只雄性新西兰白兔随机分为正常组、病理组、用药5周组及用药9周组,每组各7只。病理组和用药组给予高脂饮食5天后行内膜剥脱术,术后给高脂饮食8周,正常组仅给予普通饮食及假手术。用药9周组每天给高脂饮食同时给予氟伐他汀(10 μg/g) ,用药5周组每天给高脂饮食4周后再每天加给氟伐他汀(10 μg/g)。然后测定不同时间点家兔血浆6-酮-前列腺素F1α、血栓素B2 、内皮素、一氧化氮、组织型纤溶酶原激活剂、纤溶酶原激活剂抑制因子及纤维蛋白原水平。结果发现,实验前各组家兔血浆内皮功能指标及凝血纤溶功能指标之间均无明显差别。实验第9周两个用药组血栓素B2 / 6 -酮-前列腺素F1α比值、内皮素浓度及纤溶酶原激活剂抑制因子浓度均显著低于病理组(P<0 .0 5 ) ;病理组血栓素B2 浓度明显高于正常组(P<0 .0 5 ) ,一氧化氮及组织型纤溶酶原激活剂浓度明显低于正常组(P<0 .0 1) ;用药组6 -酮-前列腺素F1α浓度有高于病理组的趋势,纤维蛋白原浓度有低于病理组的趋势。结果提示,氟伐他汀具有明显的改善血管内皮功能及凝血纤溶系统功能的作用。

    Abstract:

    Aim To investigate the effect of fluvastatin on endothelial, coagulative and fibrinolytic functions in experimental atherosclerotic rabbits. Methods 28 male New Zealand rabbits were divided into four groups randomly: normal group,pathological group, 5-week fluvastatin-treatment group (10 μg/g.d )and 9-week fluvastatin-treatment group (10 μg/g.d ). Plasma 6-Keto-prostaglandin F 1α (6-Keto-PGF 1α ),thronboxane B 2(TXB 2),endothelin (ET), nitric oxide (NO), tissue-plasminogen activator (tPA), plasminogen activator inhibitor (PAI) and fibrinogen (FIB) concentrations were assayed in different intervals during the experiment. Results At the end of ninth week,TXB 2/6-keto-PGF 1α ratio, ET levels and PAI levels in the two treat groups were significantly lower than those in the pathological group (P<0.05); TXB 2 concentration in the pathological group was much higher than that in the normal group (P<0.05). NO and tPA concentrations in the pathological group were significantly lower than those in the normal group (P<0.01). Compared with the pathological group, the concentration of 6-Keto-PGF 1α in two treatment groups had a increasing trend, but the concentration of FIB had a lowering trend. Conclusion Fluvastatin can significantly improve endothelial, coagulative and fibrinolytic functions.

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陈晖,沈潞华,谢苗荣,李东宝.氟伐他汀对内膜损伤后动脉粥样硬化家兔内皮功能的改善作用[J].中国动脉硬化杂志,2000,8(1):39~42.

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  • 收稿日期:1999-07-31
  • 最后修改日期:2000-01-10
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