香荚兰乙酮对DOCA盐高血压大鼠血压及大动脉结构的影响

被引:4
作者
陈启稚 [1 ]
陈静 [2 ]
吴永杰 [2 ]
高平进 [2 ]
机构
[1] 上海交通大学医学院附属第九人民医院心内科
[2] 上海市高血压研究所
关键词
香荚兰乙酮; 高血压; 大鼠; 血管重塑;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的观察香荚兰乙酮对醋酸脱氧皮质酮(DOCA)盐高血压大鼠血压及大动脉结构的影响。方法 34只SD大鼠分为假手术组(n=10),DOCA盐高血压模型组(模型组,n=13)和香荚兰乙酮治疗组(治疗组,n=11),模型组和治疗组大鼠于左肾切除术1 wk后开始给药(DOCA 12.5 mg.wk-1皮下注射,1%NaCl饮水;治疗组饮水中加入1.5 mmol.L-1香荚兰乙酮),共5 wk。所有动物在术后wk 2,4,6测定尾动脉血压;6 wk后通过超声活体观察颈总动脉内膜-中膜厚度(IMT),并取胸主动脉测定血管中层厚度。结果模型组大鼠血压呈逐步升高趋势,wk 6治疗组大鼠血压明显下降[(140.6±10.5)mmHg vs.(166.6±13.5)mmHg,P<0.01],胸主动脉中层厚度[(165.52±33.65)μm vs.(194.25±17.91)μm,P<0.05]及颈动脉IMT[(53.33±10.22)μm vs.(78.00±12.96)μm,P<0.05]均显著降低。结论香荚兰乙酮干预可明显降低DOCA盐高血压大鼠尾动脉血压,抑制颈动脉内IMT的增厚,降低胸主动脉中层厚度。
引用
收藏
页码:684 / 688
页数:5
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