Epileptiform discharges induced by combined application of bicuculline and 4-aminopyridine are resistant to standard anticonvulsants in slices of rats.

Abstract:

:Application of 4-aminopyridine (4AP) has previously been reported to produce different patterns of epileptiform discharges in entorhinal cortex-hippocampal-slices. Here we describe that 4-AP induced epileptiform activity in the EC becomes insensitive to anticonvulsant drugs (phenytoin, carbamazepine, valproic acid, phenobarbital) when GABAergic transmission is blocked by bicuculline. We propose that the activities induced by 4-aminopyridine and bicuculline may provide an in vitro model for the development of new drugs against difficult-to-treat focal epilepsy.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Brückner C,Stenkamp K,Meierkord H,Heinemann U

doi

10.1016/s0304-3940(99)00341-9

keywords:

subject

Has Abstract

pub_date

1999-06-25 00:00:00

pages

163-5

issue

3

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(99)00341-9

journal_volume

268

pub_type

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