Iberiotoxin-induced Block of KCa Channels Induces Dihydropyridine Sensitivity of ACh Release from Mammalian Motor Nerve Terminals

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  • Michael T. Flink
  • William D. Atchison
چکیده

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Iberiotoxin-Induced Block of Ca -Activated K Channels Induces Dihydropyridine Sensitivity of ACh Release from Mammalian Motor Nerve Terminals

The role which Ca -activated K (KCa) channels play in regulating acetylcholine (ACh) release was examined at mouse motor nerve terminals. In particular, the ability of the antagonist iberiotoxin to recruit normally silent L-type Ca channels to participate in nerve-evoked release was examined using conventional intracellular electrophysiological techniques. Incubation of cut hemidiaphragm prepar...

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تاریخ انتشار 2003