Abstract:
:The GABA uptake inhibitor, L-2,4-diaminobutyric acid (L-DABA) was examined for potential anticonvulsant activity in mice. Given intracerebroventricularly (i.c.v., 2 mumoles) L-DABA almost doubled the CD50 of picrotoxin and 3-mercaptopropionate (3-MP), a glutamate decarboxylase inhibitor--the convulsants being administered 15 min after the L-DABA. The anticonvulsant effect was not observed after 40 min. L-DABA given i.p (5 mmoles/kg) was also anticonvulsant against 3-MP but given i.p. or i.c.v. had no anticonvulsant action against strychnine. The D-isomer of DABA, less active as an inhibitor of GABA uptake, had no anticonvulsant activity against 3-MP and nor did three other inhibitors of GABA uptake, namely nipecotic acid, cis-1,3-aminocyclohexane carboxylic acid (ACHA) and beta-alanine. Possible mechanisms of the anticonvulsant action of L-DABA are discussed.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Taberner PV,Roberts Fdoi
10.1016/0014-2999(78)90280-7subject
Has Abstractpub_date
1978-12-01 00:00:00pages
281-6issue
3-4eissn
0014-2999issn
1879-0712pii
0014-2999(78)90280-7journal_volume
52pub_type
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