Ca(2+) entry through L-type Ca(2+) channels helps terminate epileptiform activity by activation of a Ca(2+) dependent afterhyperpolarisation in hippocampal CA3.

Abstract

In CA3 neurons of disinhibited hippocampal slice cultures the slow afterhyperpolarisation, following spontaneous epileptiform burst events, was confirmed to be Ca(2+) dependent and mediated by K(+) ions. Apamin, a selective blocker of the SK channels responsible for part of the slow afterhyperpolarisation reduced, but did not abolish, the amplitude of the… (More)

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