1997
DOI: 10.1016/s0006-8993(97)00727-0
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Single potassium channels in neuropile glial cells of the leech central nervous system

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Cited by 10 publications
(7 citation statements)
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“…Hence, it cannot be concluded from our experiments whether Ca 2+ acts from the intra-or extracellular side of the membrane to activate K + channels. Nevertheless, the results are in line with the presence of Ca 2+ -activated K + channels in these cells, as recently reported [21]. Na + -dependent K + conductance Removal of external Na + also induced an increase in [Ca 2+ ] i .…”
Section: Discussionsupporting
confidence: 91%
See 1 more Smart Citation
“…Hence, it cannot be concluded from our experiments whether Ca 2+ acts from the intra-or extracellular side of the membrane to activate K + channels. Nevertheless, the results are in line with the presence of Ca 2+ -activated K + channels in these cells, as recently reported [21]. Na + -dependent K + conductance Removal of external Na + also induced an increase in [Ca 2+ ] i .…”
Section: Discussionsupporting
confidence: 91%
“…Recently, a patch-clamp study [21] reported the presence of four different K + channels in the giant glial cell membrane, one of which was activated by relatively high intracellular Ca 2+ concentrations. The most prominent K + channels at the resting potential were an outwardly rectifying 42-pS channel and an inwardly rectifying 83-pS channel.…”
Section: Discussionmentioning
confidence: 99%
“…2). It is characterized mainly by a large K ϩ conductance (Kuffler and Potter, 1964), and different types of K ϩ channels have been identified (Mu ¨ller and Schlue, 1997;Nett and Deitmer, 1998a). The resting membrane potential of the giant glial cell varies between Ϫ50 mV and Ϫ75 mV.…”
Section: Resting Membrane Potentialmentioning
confidence: 99%
“…Leech NG cells are equipped with Ca 2+ ‐dependent K + channels (Müller & Schlue 1997). Therefore, we studied a possible dependence of the myomodulin A‐induced hyperpolarization on extracellular Ca 2+ by removing Ca 2+ from the saline and adding 0.5 m m of the Ca 2+ chelator ethylene glycol‐bis‐(β‐aminoethyl ether)‐ N , N , N ′, N ′‐tetraacetic acid (EGTA).…”
Section: Resultsmentioning
confidence: 99%