营卫合剂对兔血管外膜损伤致内膜增生性病变中的干预作用(摘要)

来源 :第五届国际络病学大会 | 被引量 : 0次 | 上传用户:kaifeng_chen
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目的 探讨通心络组方之一营卫合剂在兔颈动脉外膜损伤致动脉粥样硬化中的作用.方法 新西兰大白兔高脂喂养2周后,剔除血脂不高者,采用胶原酶消化+机械分离的方法建立兔单侧颈动脉外膜损伤模型,对侧行假手术.术后继续高脂饮食喂养,随机分为营卫合剂治疗组及空白对照组,术后4周处死,取双侧颈动脉行油红及HE染色观察动脉粥样硬化病变情况、ELISA法检测外周血中炎性因子水平,免疫组化法检测血管局部炎性因子水平.结果 术后4周,与未损伤侧比较,兔颈动脉外膜损伤侧形成典型动脉粥样硬化斑块,血管局部IL-6、TNF-α及MCP-1水平明显增高(P<0.05);与空白对照组比较,营卫合剂治疗后斑块内脂质沉积减少,板块面积明显减小(P<0.05);血管局部IL-6、TNF-α及MCP-1水平明显降低(P<0.05);外周血中IL-6、TNF-α及MCP-1水平亦明显降低(P<0.05).结论 颈动脉外膜损伤结合高脂饲料饮食能建立动脉粥样硬化动物模型,营卫合剂治疗后可降低斑块面积以及体内炎性因子水平,抑制动脉粥样硬化的进展.
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