首页> 外文会议>International Conference on Life System Modeling and Simulation(LSMS 2007); 20070914-17; Shanghai(CN) >A Modified Dynamic Model for Shear Stress Induced ATP Release from Vascular Endothelial Cells
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A Modified Dynamic Model for Shear Stress Induced ATP Release from Vascular Endothelial Cells

机译:剪应力诱导的血管内皮细胞ATP释放的动态模型

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摘要

A modified dynamic model is proposed for shear stress induced adenosine triphosphate (ATP) release from endothelial cells (ECs) in order to incorporate the activation mechanism by time-varying shear stress. The dynamic behavior of ATP concentration at the endothelium-fluid interface by viscous shear flow is investigated via simulation studies. The numerical results demonstrate that the ATP concentration against time at the endothelium-fluid interface predicted by the modified dynamic ATP release model is more consistent with the experimental observations than that predicted by static ATP release model. The different behaviors of ATP concentration predicted by the original dynamic model and the new one are also compared and analyzed.
机译:提出了一种修改的动力学模型,用于剪应力诱导内皮细胞(ECs)释放三磷酸腺苷(ATP),以便通过随时间变化的剪应力纳入激活机制。通过模拟研究,通过粘性剪切流研究了内皮-流体界面上ATP浓度的动态行为。数值结果表明,改进的动态ATP释放模型预测的内皮细胞-流体界面上的ATP浓度随时间变化比静态ATP释放模型预测的与实验结果更加一致。还对原始动力学模型和新动力学模型预测的ATP浓度的不同行为进行了比较和分析。

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