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孟鲁司特钠的心肌保护作用及对一氧化氮合酶的影响 被引量:9

Cardioprotective effect and influence on NOS expression of Montelukast sodium in rats
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摘要 目的 观察白三烯受体拮抗剂孟鲁司特钠对大鼠心肌坏死的保护作用及一氧化氮合酶 (NOS)的影响。方法 大鼠sc异丙肾上腺素 (2mg·kg- 1 )造成心肌坏死模型 ,ig不同剂量孟鲁司特钠 ,测定血清乳酸脱氢酶 (LDH)、肌酸磷酸激酶 (CK)、丙二醛 (MDA)及心肌一氧化氮 (NO)含量和坏死心肌面积 ,免疫组化检测心肌NOS 3种同功酶的表达。结果 大鼠预先给予孟鲁司特钠 10或 30mg·kg- 1 可降低血清LDH ,CK ,MDA含量 ,缩小心肌坏死面积。孟鲁司特钠 30mg·kg- 1 还能激活内皮型NOS(eNOS)表达 ,抑制诱导型NOS(iNOS)表达 ,促进心肌NO释放。结论 孟鲁司特钠通过拮抗白三烯的致炎作用及激活eNOS、抑制iNOS表达 ,对大鼠异丙肾上腺素心肌坏死具有保护作用 。 Aim To determine the protective effect and influence on NOS expression of Montelukast sodium——a leukotriene antagonist on myocardial necrosis in rats. Methods Myocardial ischemia and necrosis were induced in rats by isoproterenol (2 mg·kg -1, sc, qd for 2 d). Serum activity of LDH,CK, MDA, NO content in myocardium and scope of myocardial necrosis were measured. nNOS, iNOS and eNOS were investigated by immunohistochemical evaluation. Results Decreased serum level of LDH, CK, MDA and attenuated myoca...
出处 《药学学报》 CAS CSCD 北大核心 2003年第11期821-825,共5页 Acta Pharmaceutica Sinica
关键词 白三烯 孟鲁司特钠 心肌坏死 一氧化氮 一氧化氮合酶 leukotriene Montelukast sodium myocardial necrosis nitric oxide nitric oxide synthase
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