Kostiuk P G, Fedulova S A, Veselovskiĭ N S
Neirofiziologiia. 1986;18(6):813-20.
Distribution of different types of ionic channels carrying inward currents was studied in the somatic membrane of rat dorsal root ganglion neurons within three age groups: 5-9 days, 45 days and 90 postnatally. The number of neurons whose membrane contained simultaneously four types of inward current channels ("fast" tetrodotoxin-sensitive and "slow" tetrodotoxin-resistant sodium low- and high-threshold calcium one's) was progressively reduced in successive groups. The first group contained 14.5%, the second 5% and the third group 1% of such neurons. These changes were due to disappearance of "slow" sodium and low-threshold calcium channels from the membrane; the number of neurons whose somatic membrane contained only two types of inward current channels ("fast" sodium and high-threshold calcium) has increased, respectively.
在三个年龄组（出生后5 - 9天、45天和90天）的大鼠背根神经节神经元的体膜中，研究了携带内向电流的不同类型离子通道的分布情况。膜中同时包含四种内向电流通道（“快速”河豚毒素敏感型和“慢速”河豚毒素抗性型钠通道以及低阈值和高阈值钙通道）的神经元数量在连续的组中逐渐减少。第一组中这类神经元占14.5%，第二组占5%，第三组占1%。这些变化是由于膜中“慢速”钠通道和低阈值钙通道消失所致；其体膜仅包含两种内向电流通道（“快速”钠通道和高阈值钙通道）的神经元数量相应增加。
