轴突内神经信号成分间的电生理相互作用机制
On mechanisms of electromechanophysiological interactions between the components of nerve signals in axons
摘要：
最近的研究揭示了轴突中神经信号的复杂结构。有实验证据表明，电信号（动作电位）的传播伴随着机械和热效应。在本文中，首先概述了实验结果和可能的机制，电-机械-生理耦合，支配轴突中的信号形成。这形成了建立描述波系综的数学模型的基础。电-脂双层相互作用导致生物膜中的机械波;电-液相互作用导致轴质中的机械波;电-液相互作用导致轴质中的温度变化。分析了可能对相互作用起作用的变量的可能变化的影响，并引入了描述吸热过程的内部变量的概念。先前提出的数学模型进行修改，反映这些相互作用的可能的物理解释。
英文摘要：
Recent studies have revealed the complex structure of nerve signals in axons. There is experimental evidence that the propagation of an electrical signal (action potential) is accompanied by mechanical and thermal effects. In this paper, first an overview is presented on experimental results and possible mechanisms of electromechanophysiological couplings which govern the signal formation in axons. This forms a basis for building up a mathematical model describing an ensemble of waves. Three physical mechanisms responsible for coupling are (i) electric-lipid bi-layer interaction resulting in the mechanical wave in biomembrane; (ii) electric-fluid interaction resulting in the mechanical wave in the axoplasm; (iii) electric-fluid interaction resulting in the temperature change in axoplasm. The influence of possible changes in variables which could have a role for interactions are analysed and the concept of internal variables introduced for describing the endothermic processes. The previously proposed mathematical model is modified reflecting the possible physical explanation of these interactions.
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