In vivo modulation of benzodiazepine receptor function after inhibition of endogenous gamma-aminobutyyric acid synthesis.

Abstract:

:The influence of decreased endogenous gamma-aminobutyric acid (GABA) concentration on benzodiazepine receptor function was studied in the brain of living baboons. Positron emission tomography and the radiotracer [11C]flumazenil combined with electroencephalography were used to determine the pharmacological properties of two bezodiazepine receptors agonists, diazepam and bretazenil, in baboons pre-treated or not with DL-allylglycine (an inhibitor of GABA synthesis). Our results show that, in vivo, DL-allylglycine reduces the affinity of benzodiazepine receptors for their agonists without altering the intrinsic capability of agonists to allosterically modulate GABAergic transmission.

journal_name

Eur J Pharmacol

authors

Bottlaender M,Schmid L,Fuseau C,Fournier D,Brouillet E,Mazière M

doi

10.1016/s0014-2999(97)00004-6

subject

Has Abstract

pub_date

1997-02-19 00:00:00

pages

13-7

issue

1

eissn

0014-2999

issn

1879-0712

pii

S0014299997000046

journal_volume

321

pub_type

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