Hui Ping, Wang Jimei. Effect of External Divalent Cations on the Activation Process of Na─channels[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1995,34(3):67-72.
Hui Ping, Wang Jimei. Effect of External Divalent Cations on the Activation Process of Na─channels[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1995,34(3):67-72.DOI:
We propose a model to discribe the effect of divalent cations on the activation processof Na─channels.The following are the results obtained from the model: For the activation pro-coss of Na─channels there exists a threshold of depolarization voltage;The increass of concen-tration of divalent cations results in increase of the threshold; The relaxation time of activationprocess and the maximum degres of activatcatcation are significantly related with the concentra-tion of divalent ions and with the depolarization voltage
The results mentioned above agree wellwith those obtained through experiments qualitatively and semi─quantitatively.
关键词
阈值激活过程Na导通性全一无现象
Keywords
thresholdactivation processNa─conductanceall or none phenomenon