天然产物研究与开发 ›› 2020, Vol. 32 ›› Issue (4): 652-658.doi: 10.16333/j.1001-6880.2020.4.015

所属专题: No.6

• 开发研究 • 上一篇    下一篇

迷迭香酸抗动脉粥样硬化作用研究

林晓琳1,2,张凌云1,3*


  

  1. 1滨州医学院临床医学院;2烟台毓璜顶医院莱山分院内科,烟台264003;3滨州医学院烟台附属医院内分泌科,烟台 264100

  • 出版日期:2020-04-28 发布日期:2020-06-05

Rosmarinic acid attenuates atherosclerosis

LIN Xiao-lin 1,2,ZHANG Ling-yun 1,3 *#br#

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  1. 1Department of Clinical Medicine,Binzhou Medical University;2Department of Internal Medicine,Yantai Yuhuangding Hospital of Laishan Branch,Yantai 264003,China;3Department of Endocrinology,Yantai Affiliated Hospital of Binzhou Medical University,Yantai 264100,China

  • Online:2020-04-28 Published:2020-06-05

摘要:

本研究主要研究迷迭香酸是否能改善动脉粥样硬化(AS)。采用平行板流动腔模拟低剪切力(LSS)建立内皮细胞功能紊乱模型,使用DHE和DAF-FM DA探针检测细胞中ROS和NO的活性,分别使用qPCR法和Western blotting检测细胞中ICAM-1和VCAM-1的mRNA和蛋白表达来反应细胞炎症反应。采用高脂饲料(HCD)喂食斑马鱼建立斑马鱼AS模型,并在荧光显微镜下观察AS斑马鱼的脂质蓄积、炎症和氧化应激。结果发现,LSS诱导严重的内皮细胞功能紊乱,主要表现为:内皮细胞中ROS活性、ICAM-1和VCAM-1的mRNA和蛋白表达显著升高,而NO的活性显著降低。迷迭香酸的治疗可以有效改善LSS诱导的这些内皮细胞功能紊乱现象。结果也发现,HCD显著增加斑马鱼低剪切力处血管中的脂质蓄积,同时也诱导斑马鱼发生氧化应激和炎症反应。迷迭香酸治疗可以显著改善HCD诱导的这些AS症状。综上所述,迷迭香酸可以有效改善AS,并且其治疗AS的作用可能与其改善LSS诱导的内皮细胞功能紊乱作用有关。

关键词: 迷迭香酸, 动脉粥样硬化, 内皮细胞功能紊乱, 斑马鱼, 低剪切力

Abstract:

This study aimed to investigate the effectiveness of anti-atherosclerosis of rosmarinic acid (RosA).This study used a parallel flow chamber to establish low shear stress (LSS)-induced endothelial (EC) dysfunction model.This study exposed EC to LSS (3 dyn/cm2) for 30 min and treated it by oridonin.the ROS and NO levels in EC were measured by DHE and DAF-FM DA assay.The mRNA and protein expression of ICAM-1 and VCAM-1 were assayed by qPCR and Westen blotting.This study fed zebrafish with high-cholesterol diet (HCD) to establish a zebrafish atherosclerosis (AS) model,and observed lipid accumulation and inflammation by a fluorescence microscope.Results found that RosA improved LSS-induced EC dysfunction,and inhibited HCD-induced lipid accumulation,oxidative stress and inflammation.Results indicated that RosA may be used for the treatment of AS,and primarily exhibited its protective role through improving LSS-induced EC dysfunction.

Key words: rrosmarinic acid, atherosclerosis, endothelial dysfunction, zebrafish, low shear stress

中图分类号:  R965