红景天苷对异丙肾上腺素诱导的小鼠心肌缺血的影响

被引:20
作者
常厦云
朱凌鹏
王秋娟
颜天华
机构
[1] 中国药科大学生理教研室
关键词
红景天苷; 心肌缺血; 凋亡;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的:研究红景天苷对异丙肾上腺素诱发小鼠急性心肌缺血的影响。方法:取雄性ICR小鼠60只,随机分为6组:正常组、模型组、普萘洛尔组(15 mg/kg),红景天苷组(12 mg/kg),红景天苷组(24 mg/kg),红景天苷组(48 mg/kg)。正常组及模型组按10 ml/kg灌胃给予生理盐水,普萘洛尔组(15 mg/kg)、红景天苷组(12 mg/kg,24 mg/kg,48 mg/kg)灌胃给予相应的药物,一共给药7天,每次给药1 h后,除空白组外,其余各组小鼠腹腔给予异丙肾上腺素(80 mg/kg);末次给药2 h后,检测小鼠心电图,采血测定血清心肌酶(CK)、乳酸脱氢酶(LDH)、超氧化物歧化酶(SOD)、丙二醛(MDA),白介素(IL)-6、肿瘤坏死因子(TNF)-α,并测定心脏CK、LDH、SOD、MDA、IL-6和TNF-α,取各组小鼠心脏做HE染色,并取各组小鼠心脏检测心脏Bax及Bcl-2蛋白表达。结果:红景天苷(12 mg/kg,24 mg/kg,48 mg/kg)能显著降低异丙肾上腺素诱导的心肌缺血小鼠血清及心脏CK、LDH、SOD、MDA、IL-6和TNF-α的含量;能显著改善异丙肾上腺素诱导的心脏病理学改变;显著升高心脏Bcl-2蛋白表达,降低心脏Bax蛋白表达。结论:红景天苷对异丙肾上腺素诱导的小鼠心肌缺血有保护作用,其作用可能与调节心脏凋亡蛋白相关。
引用
收藏
页码:67 / 70
页数:4
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