灯盏花素改善动脉粥样硬化损伤的实验研究The Inhibitive Effects of Breviscapine on Oxidative Stress and Inflammation in Atherosclerosis Rats
武迎磊,赵天,李明
摘要(Abstract):
目的观察灯盏花素对动脉粥样硬化损伤的改善作用及其机制。方法采用高脂饲料结合注射维生素D_3制备动脉粥样硬化大鼠模型,选取80只模型大鼠按随机数字表法分为模型组、灯盏花素6、12、24 mg/(kg·d)组和辛伐他汀1.8 mg/(kg·d)组,每组16只,分别与造模过程同步灌胃给药12周,并设正常对照组大鼠16只。通过HE染色观察主动脉形态变化并进行病变分级;测定血清抗氧化酶活性和丙二醛(MDA)、活性氧簇(ROS)含量;酶联免疫法测定血浆中炎症细胞因子C反应蛋白(CRP)、肿瘤坏死因子-α(TNF-α)、白细胞介素1β(IL-1β)、白细胞介素-6(IL-6)含量。结果与模型组比较发现灯盏花素干预组大鼠主动脉病理性形态结构改变呈不同程度改善,灯盏花素24 mg/(kg·d)组病变分级显著降低(P<0.01),灯盏花素12、24 mg/(kg·d)组血清中抗氧化酶(SOD、CAT)活性显著升高,MDA、ROS含量均显著降低,灯盏花素24 mg/(kg·d)组抗氧化酶(GSH-Px)活性显著升高;灯盏花素12、24 mg/(kg·d)组大鼠血浆中炎症细胞因子CRP、TNF-α、IL-1β、IL-6含量显著降低,灯盏花素24 mg/(kg·d)组IL-10含量显著升高;差异均有统计学意义(P<0.05或P<0.01)。结论灯盏花素能够通过抑制氧化应激、抑制炎症反应从而对动脉粥样硬化损伤起到一定的保护作用。
关键词(KeyWords): 灯盏花素;氧化应激;炎症;动脉粥样硬化;损伤
基金项目(Foundation): 河北省邢台市科技计划项目(2016ZC091)
作者(Author): 武迎磊,赵天,李明
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