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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Simulation of time delay effects in the intracellular calcium oscillation of cells
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Simulation of time delay effects in the intracellular calcium oscillation of cells

机译:模拟细胞内钙离子振荡的时延效应

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Intracellular calcium oscillation with time delay and correlated noises was investigated in this paper by means of stochastic simulation. The time evolution and stationary probability distribution (SPD) of Ca~(2+) concentration in the cytosol and in an IP_3-insensitive pool were calculated. The results indicate that: (i) the intracellular calcium oscillation is suppressed with increasing the delay time τ but is enhanced with increasing the external noise intensity D; (ii) the structure of the SPD exhibits a transition from a single peak to double peaks and the biggest peak shrinks as the external noise intensity D increases; (iii) the structure of the SPD exhibits a transition from double peaks to a single peak and the biggest peak grows as the delay time τ increases.
机译:通过随机模拟的方法研究了细胞内钙离子振荡的时滞和相关的噪声。计算了Ca〜(2+)在胞质溶胶和IP_3不敏感池中的浓度的时间演化和平稳概率分布(SPD)。结果表明:(i)细胞内钙振荡随延迟时间τ的增加而受到抑制,但随外部噪声强度D的增加而增强; (ii)SPD的结构表现出从单峰到双峰的过渡,并且最大峰随着外部噪声强度D的增加而缩小; (iii)SPD的结构表现出从双峰到单峰的过渡,并且最大峰随着延迟时间τ的增加而增长。

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