Spontaneous and nerve-evoked quantal transmission in regenerated motor terminals
- 1 December 1989
- journal article
- review article
- Published by Wiley in Cell Biology International Reports
- Vol. 13 (12) , 1119-1126
- https://doi.org/10.1016/0309-1651(89)90025-8
Abstract
Quantal acetylcholine release was studied in sciatic nerve — extensor digitorum longus muscle preparations from normal rats and in reinnervated muscles at different times following peroneus nerve crush. The efficiency of nerve-evoked transmission was regained almost completely at a time (20 days after crush) when the secretory response to increased extracellular K + was very weak. This suggests that K + -induced secretion might be activated through mechanisms at least partially different from those involved in the response to nerve stimulation.Keywords
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