Functional significance of the 10 Hz rhythmic discharges in sympathetic nerves
Functional significance of the 10 Hz rhythmic discharges in sympathetic nerves
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DOI：
10.1111/j.1440-1681.1998.tb02236.x
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发表时间：
1998-06-01
影响因子：
2.9
通讯作者：
Terui, N
中科院分区：
文献类型：
--
作者：
Kishi, E;Ootsuka, Y;Terui, N
1.通过测定麻醉和固定家兔肾血管电导，评价电刺激肾神经引起交感神经10 Hz节律性放电的功能意义。该刺激模仿间歇发生的10 Hz节律性放电。高频（10- 20 Hz）间歇电刺激与低频（5 Hz）连续电刺激比较，在刺激脉冲总数相同的情况下，高频间歇电刺激引起的肾血管电导反应更快（时间常数更小）、更大。因此，在交感神经中间歇发生的10 Hz节律性放电对外周器官产生的影响比连续放电产生的影响更快和更大，如果尖峰的数量相等。
1. By measuring renal vascular conductance in anaesthetized and immobolized rabbits, the functional significance of the 10Hz rhythmic discharges in the sympathetic nerves was assessed by electrical stimulation of the renal nerve. This stimulation mimicked the intermittently occurring 10Hz rhythmic discharges.2. Comparison of high-frequency (10-20Hz) intermittent electrical stimulation with continuous low-frequency (5Hz) stimulation showed that the intermittent high-frequency stimulation evoked faster (smaller time constant) and larger responses of the renal vascular conductance if the total number of stimulus pulses was the same,3. Therefore, the intermittently occurring 10Hz rhythmic discharges in the sympathetic nerve produces faster and larger effects on peripheral organs than effects produced by continuous discharges if the number of spikes is equal.