青蛙神经肌肉接头处诱发递质释放中的成簇现象和振荡
Clumping and oscillations in evoked transmitter release at the frog neuromuscular junction.
作者信息
Meiri H, Rahamimoff R
出版信息
J Physiol. 1978 May;278:513-23. doi: 10.1113/jphysiol.1978.sp012321.
Abstract
- Time series analysis of evoked transmitter release was performed at the frog neuromuscular synapse. 2. Clumping of end-plate potentials with similar amplitude was found in the time domain. 3. At low quantal contents periodic oscillations were observed with a period of 14 sec. 4. Clumping and oscillations are phenomena of presynaptic origin. 5. The results are explained on the hypothesis that periodic fluctuations occur in Ca concentration inside the presynaptic nerve terminal.
摘要
- 在青蛙神经肌肉突触处进行了诱发递质释放的时间序列分析。2. 在时域中发现了具有相似幅度的终板电位的聚集现象。3. 在低量子含量时，观察到周期为14秒的周期性振荡。4. 聚集和振荡是突触前起源的现象。5. 这些结果是基于突触前神经末梢内钙离子浓度发生周期性波动的假设来解释的。
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