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青蛙骨骼肌纤维:横管系统破坏后电特性的变化

Frog skeletal muscle fibers: changes in electrical properties after disruption of transverse tubular system.

作者信息

Eisenberg R S, Gage P W

出版信息

Science. 1967 Dec 29;158(3809):1700-1. doi: 10.1126/science.158.3809.1700.

DOI:10.1126/science.158.3809.1700
PMID:6070028
Abstract

In muscle fibers which have been exposed for 1 hour to a Ringer solution containing 400 millimolar glycerol and then returned to plain Ringer solution, the transverse tubular system is disrupted. At the same time the membrane capacitance is markedly reduced and hyperpolarizing current pulses no longer produce a slow, progressive increase in potential (creep). The large capacitance of muscle and the phenomenon of "creep" must both depend on an intact transverse tubular system.

摘要

在已暴露于含400毫摩尔甘油的林格溶液1小时然后再回到普通林格溶液的肌纤维中,横管系统遭到破坏。与此同时,膜电容显著降低,超极化电流脉冲不再产生电位的缓慢、渐进性增加(蠕动)。肌肉的大电容和“蠕动”现象肯定都依赖于完整的横管系统。

相似文献

1
Frog skeletal muscle fibers: changes in electrical properties after disruption of transverse tubular system.青蛙骨骼肌纤维:横管系统破坏后电特性的变化
Science. 1967 Dec 29;158(3809):1700-1. doi: 10.1126/science.158.3809.1700.
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Action potentials without contraction in frog skeletal muscle fibers with disrupted transverse tubules.横小管遭到破坏的青蛙骨骼肌纤维中出现无收缩的动作电位。
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Capacitance of the surface and transverse tubular membrane of frog sartorius muscle fibers.青蛙缝匠肌纤维表面和横管膜的电容
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Differential effects of glycerol treatment on membrane capacity and excitation-contraction coupling in toad sartorius fibres.甘油处理对蟾蜍缝匠肌纤维膜容量和兴奋-收缩偶联的不同影响。
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Anatomical distribution of voltage-dependent membrane capacitance in frog skeletal muscle fibers.青蛙骨骼肌纤维中电压依赖性膜电容的解剖分布。
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Action potentials, afterpotentials, and excitation-contraction coupling in frog sartorius fibers without transverse tubules.无横管的蛙缝匠肌纤维中的动作电位、后电位及兴奋-收缩偶联
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Transverse tubular system in glycerol-treated skeletal muscle.甘油处理的骨骼肌中的横小管系统
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The maintenance of resting potentials in glycerol-treated muscle fibres.甘油处理过的肌纤维静息电位的维持
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