首页> 外文期刊>Life sciences >27-Hydroxycholesterol causes remodeling in endothelial cell membrane lipid composition comparable to remodeling in the failed vein grafts of CABG patients.
【24h】

27-Hydroxycholesterol causes remodeling in endothelial cell membrane lipid composition comparable to remodeling in the failed vein grafts of CABG patients.

机译:27-羟基胆固醇引起的内皮细胞膜脂质组成的重塑与CABG患者失败的静脉移植物中的重塑可比。

获取原文
获取原文并翻译 | 示例
           

摘要

Our objective is to determine if vascular remodeling in CABG patients is related to oxysterols, therefore, we compared failed vein grafts from 18 patients, available after a second coronary artery bypass grafting (CABG), with human endothelial cells (ECs). The ECs were cultured in minimum essential medium (MEM) with or without 27-hydroxycholesterol (27OHC), one of the oxysterol products of oxidatively modified low density lipoproteins (ox-LDL), as an agent to alter molecular mechanisms in vascular cells. Significant changes in phospholipid composition, in fatty acid profile and in calcium concentration were found in the failed vein compared to the native saphenous vein from the same (CABG) patient. The failed vein contained significantly less phosphatidylethanolamine, more sphingomyelin, less arachidonic acid, more linoleic acid and more calcium than the native saphenous vein. Comparable changes in phospholipid composition, in fatty acid profile and increased calcium influx were reproduced in ECs cultured in medium containing 27OHC indicating that an oxysterol is an agent that can alter the lipid composition of vascular cell membranes. Our study indicates that a lipid agent, as well as protein agents that have previously been linked to the process of vascular remodeling, may be fundamental to many vascular diseases.
机译:我们的目标是确定CABG患者的血管重塑是否与氧固醇有关,因此,我们将18例患者的失败的静脉移植物(与第二次冠状动脉旁路移植术(CABG)一起使用)与人内皮细胞(EC)进行了比较。 ECs在有或没有27-羟基胆固醇(27OHC)的基本必需培养基(MEM)中进行培养,27-羟基胆固醇是氧化修饰的低密度脂蛋白(ox-LDL)的一种氧固醇产物,可作为改变血管细胞分子机制的试剂。与同一名(CABG)患者的天然隐静脉相比,在失败的静脉中发现了磷脂成分,脂肪酸谱和钙浓度的显着变化。与天然大隐静脉相比,失败的静脉含有明显更少的磷脂酰乙醇胺,更多的鞘磷脂,更少的花生四烯酸,更多的亚油酸和更多的钙。在含27OHC的培养基中培养的EC中,磷脂的组成,脂肪酸谱和钙流入的增加发生了可比的变化,表明氧固醇是可以改变血管细胞膜脂质组成的物质。我们的研究表明,脂质剂以及以前与血管重塑过程相关的蛋白质剂可能是许多血管疾病的基础。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号