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数值模拟血管内皮细胞糖萼对低密度脂蛋白传输的影响

发表时间:2016-11-15  浏览量:4343  下载量:842
全部作者: 王丽冰,邓小燕,刘肖
作者单位: 北京航空航天大学生物与医学工程学院,生物力学与力生物学教育部重点实验室
摘 要: 为定量研究内皮细胞糖萼(endothelial glycocalyx layer,EGL)对低密度脂蛋白(low density lipoprotein,LDL)的阻止作用,本研究建立了包括EGL在内的多层血管模型,研究EGL的不同参数对LDL传输的影响。结果表明,EGL厚度的增加会导致LDL在内膜中的沉积急剧减少,部分破坏EGL就会摧毁EGL对LDL传输的阻止作用,导致LDL在血管壁中大量积累。因此,内皮细胞上完整的EGL也许能抑制LDL在血管壁中的过度沉积。
关 键 词: 生物力学;糖萼;动脉粥样硬化;低密度脂蛋白
Title: Effect of the endothelial glycocalyx layer on arterial LDL transport: a numerical study
Author: WANG Libing, DENG Xiaoyan, LIU Xiao
Organization: Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science & Medical Engineering, Beihang University
Abstract: To quantitatively investigate the role of the endothelial glycocalyx layer (EGL) in protecting the artery from excessive infiltration of atherogenic lipids such as low density lipoprotein (LDL), a multilayer model with the EGL of an arterial segment is developed to numerically simulate the flow and the transport of LDL. The results show that the increase in the thickness of the EGL can lead to a sharp drop in LDL accumulation in the intima. A partial damage to the EGL can compromise its barrier function, hence leading to increased infiltration/accumulation of atherogenic lipids such as LDL within the wall of the arterial model. In conclusion, an intact EGL with a sufficient thickness may act as a barrier to LDL infiltration into the arterial wall.
Key words: biomechanics; glycocalyx; atherosclerosis; low density lipoprotein
发表期数: 2016年11月第21期
引用格式: 王丽冰,邓小燕,刘肖. 数值模拟血管内皮细胞糖萼对低密度脂蛋白传输的影响[J]. 中国科技论文在线精品论文,2016,9(21):2165-2173.
 
700 评论数 7

:该文章通过模型计算,并与目前的前沿相关研究进行了比较分析,提供给我们一种论文参考,本文研究思路非常清晰,值得借鉴,是一篇好文章!

2017-05-03 21:33:23

:文章使用计算机仿真计算说明了内皮细胞糖萼对低密度脂蛋白传输的影响,

2017-05-03 21:30:11
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