Examining the Effect of Introducing a Link From Electrical Excitation to Calcium Dynamics in a Cardiomyocyte
Examining the Effect of Introducing a Link From Electrical Excitation to Calcium Dynamics in a Cardiomyocyte
复制标题
检查在心肌细胞中引入从电激励到钙动力学的联系的效果
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
Zana Coulibaly
中科院分区:
文献类型:
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作者:
Kallista Angeloff;C. Barajas;Alexander Middleton;Uchenna Osia;Jonathan S. Graf;M. Gobbert;Zana Coulibaly
Correspondence: Prof. Matthias K. Gobbert, Dept. of Mathematics and Statistics, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA gobbert@umbc.edu Abstract Calcium dysregulation is a significant cause of fatal cardiac arrythmias, but it is an incompletely understood phenomenon and difficult to predict. Cardiac calcium levels can be modeled as a system of partial differential equations linking the electrical excitation, calcium signaling, and mechanical contraction dynamics of the heart. A complete calcium induced calcium release model uses reaction-diffusion equations to fully link these three systems. Simulations examine the effect of introducing the link from calcium signaling to electrical excitation. In particular, we perform a parameter study on the strength of the feedback connection with both links between calcium signaling and electrical excitation enabled. Simulations indicate that the feedback and feedforward between electrical excitation and calcium signaling can influence the voltage in a physiologically realistic way.
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影响因子:
3.4
作者:
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20.1
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