Anticonvulsant activity of AMPA/kainate antagonists: comparison of GYKI 52466 and NBOX in maximal electroshock and chemoconvulsant seizure models.

Abstract:

:The anticonvulsant activities of a noncompetitive (GYKI 52466) and a competitive (NBQX) AMPA/kainate antagonist were compared in the maximal electroshock (MES) seizure test and various chemoconvulsant models. Both antagonists were protective in the MES and pentylenetetrazol tests. GYKI 52466 was also protective against seizures and lethality induced by 4-aminopyridine, kainate and AMPA, but not by NMDA, whereas NBQX was ineffective in these chemoconvulsant tests. Both GYKI 52466 and NBQX produced motor impairment at doses similar to those that were protective in the MES test. Under some circumstances, noncompetitive AMPA/kainate antagonists could offer advantages over competitive antagonists in seizure therapy. However, neurological toxicity is an obstacle to the potential clinical use of both classes of agents.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Yamaguchi S,Donevan SD,Rogawski MA

doi

10.1016/0920-1211(93)90054-b

subject

Has Abstract

pub_date

1993-07-01 00:00:00

pages

179-84

issue

3

eissn

0920-1211

issn

1872-6844

pii

0920-1211(93)90054-B

journal_volume

15

pub_type

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