Bicuculline methiodide in the blood-brain barrier-epileptogen model of epilepsy.

Abstract:

:Focal epilepsy can be produced by a blood-brain barrier (BBB)-excluded systemic convulsant (penicillin, folic acid, etc.) in the presence of a focal BBB lesion. Bicuculline methiodide, a gamma-aminobutyric acid blocking epileptogen, crosses the normal BBB of rats poorly and produces no consistent abnormality behaviorally or on EEG at 36 mg/kg. When the BBB is opened in 0.25 ml of cortex by 6,000 rad of alpha particles, by a pin trauma lesion, or by a heat lesion, the rats are normal clinically and on EEG. When these lesioned rats are challenged with bicuculline methiodide, 36 mg/kg, an intense, highly localized epileptiform discharge results that begins approximately 20 min after injection and lasts 30-90 min. The plausibility and experimental utility of the BBB-epileptogen model of epilepsy are enhanced by these observations.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Remler MP,Marcussen WH

doi

10.1111/j.1528-1157.1985.tb05189.x

subject

Has Abstract

pub_date

1985-01-01 00:00:00

pages

69-73

issue

1

eissn

0013-9580

issn

1528-1167

journal_volume

26

pub_type

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