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氨氯地平和厄贝沙坦对自发性高血压大鼠凝血和纤溶系统的影响(摘要) 被引量:1

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摘要 目的 检测自发性高血压大鼠的凝血和纤溶状态并以此为依据合理选用能改善其凝血和纤溶状态的抗高血压药物。方法 15周龄雄性自发性高血压大鼠 2 4只随机分为三组 ,①氨氯地平组 8只 ,给含amlodipine 5mg (kg·d)的水 ;②厄贝沙坦组 8只 ,给含irbesartan 5 0mg (kg·d)的水 ;③自发性高血压大鼠对照组和雄性WistarKyoto(WKY)正常血压对照组各 6只 ,以等量蒸馏水代替 ;以上疗程均为 8周。于试验前、喂养 8周后测尾动脉收缩压后于尾动脉取血测定血清一氧化氮及其合酶水平 ,同时取抗凝血检测血浆组织型纤溶酶原激活物 (t PA)活性、纤溶酶原激活物抑制剂 1(PAI 1)活性。结果 与WKY组比较 ,自发性高血压大鼠组血浆PAI 1活性显著增高 (1.12± 0 .2 2比 0 .83± 0 .31,P <0 .0 1) ,t PA和NOS活性及NO水平显著降低 (0 .32± 0 .0 7,5 3.2± 8.7,32 .5± 4 .4比 0 .4 6± 0 .13,6 4 .4± 10 .1,4 4 .5± 7.4 ,P均 <0 .0 1) ,t PA和NOS活性及NO水平显著增高 (P <0 .0 1)。结论 ①自发性高血压大鼠血管内凝血与纤溶并存 ,因而有血栓栓塞和 或出血的危险性 ;②氨氯地平和厄贝沙坦对自发性高血压大鼠的干预能逆转自发性高血压大鼠的血栓前状态 (PTS) ,改善其已受损的凝血和纤溶系统。
出处 《中国动脉硬化杂志》 CAS CSCD 2002年第5期383-383,共1页 Chinese Journal of Arteriosclerosis
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