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[蛙骨骼肌膜中存在钙依赖性钾通透性的两种成分]

[Two components of calcium-dependent potassium permeability coexist in the membrane of frog skeletal muscle].

作者信息

Traoré F, Cognard C, Potreau D, Raymond G

出版信息

C R Acad Sci III. 1987;305(3):69-72.

PMID:2441824
Abstract

Two components of Ca-dependent K permeabilities were demonstrated in the membrane of voltage-clamped muscles fibres by raising the internal calcium concentration with 3 mM caffeine or 0.1 microM Bay K 8644. One, which is TEA-sensitive, is enhanced by an increase of intracellular calcium and the other, which is apamin-sensitive, is inhibited by high levels of internal calcium concentration.

摘要

通过用3 mM咖啡因或0.1 microM Bay K 8644提高细胞内钙浓度，在电压钳制的肌纤维膜中证实了钙依赖性钾通透性的两个组成部分。一个对TEA敏感，随着细胞内钙增加而增强；另一个对蜂毒明肽敏感，被高水平的细胞内钙浓度所抑制。

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C R Acad Sci III. 1987;305(3):69-72.
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The correlation between the increase in slow outward current and in contraction induced by caffeine, ryanodine, and rapid cooling in voltage-clamped frog muscle fibers.电压钳制的青蛙肌肉纤维中，咖啡因、兰尼碱和快速冷却所诱导的缓慢外向电流增加与收缩之间的相关性。
Can J Physiol Pharmacol. 1991 Jun;69(6):859-64. doi: 10.1139/y91-130.

引用本文的文献

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The depressing effect of tetracaine and ryanodine on the slow outward current correlated with that of contraction in voltage-clamped frog muscle fibres.丁卡因和兰尼碱对缓慢外向电流的抑制作用与电压钳制的青蛙肌肉纤维收缩的抑制作用相关。
Pflugers Arch. 1990 Apr;416(1-2):106-12. doi: 10.1007/BF00370230.