[钠离子在青蛙耳小梁诱导钙在细胞内释放的演示]。

Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles Pub Date : 1980-10-13

R Bonvallet, M Ildefonse, O Rougier

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引用次数: 0

摘要

在含EGTA (10-3M)的无ca、无mg介质中，耳小梁向内产生一种缓慢的纯钠电流。在这种介质中12分钟后，仍然可以获得与电流完全相关的相力学活度。这种行为表明钠诱导钙释放的机制存在于某些内部部位的水平上。

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[Demonstration of intracellular release of calcium induced by sodium ions in the auricular trabeculae of the frog].

In a Ca-free, Mg-free medium containing EGTA (10-3M) auricular trabecles develop a slow inward current which is a pure sodium current. After 12 min in this medium, it is still possible to obtain a phasic mechanical activity which shows a perfect correlation with the current. This kind of behavior indicates that a mechanism of sodium-induced calcium release is present at the level of some internal sites.

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Comptes rendus des seances de l'Academie des sciences. Serie D, Sciences naturelles

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