Loreclezole hydrochloride

Loreclezole hydrochloride, an antiepileptic compound, is a selective GABAA receptor modulator and acts as a positive allosteric modulator of β2 or β3-subunit containing receptors[1][2].

Signaling Pathways >> Membrane Transporter/Ion Channel >> GABA Receptor

Research Areas >> Neurological Disease

Signaling Pathways >> Neuronal Signaling >> GABA Receptor

GABAA receptor[1].

Loreclezole (10, 25, 50 or 75 mg/kg, i.p. 60 min before measurement of seizure threshold ) results in a dosedependent rise in seizure threshold as measured by the dose of pentylenetetrazolrequired to produce a convulsion 60 min later. Loreclezole also has the least effect on loss of muscle tone as measured by the “pull-up” test[3]. Animal Model: Adult male Lister Hooded rats[3]. Dosage: 10, 25, 50 or 75 mg/kg. Administration: IP, 60 min before measurement of seizure threshold. Result: Resulted in a dosedependent rise in seizure threshold as measured by the dose of pentylenetetrazolrequired to produce a convulsion 60 min later.

[1]. Wingrove PB, et al. The modulatory action of loreclezole at the gamma-aminobutyric acid type A receptor is determined by a single amino acid in the beta 2 and beta 3 subunit. Proc Natl Acad Sci U S A. 1994 May 10;91(10):4569-73.

[2]. Sanna E, et al. Direct activation of GABAA receptors by loreclezole, an anticonvulsant drug with selectivity for the beta-subunit. Neuropharmacology. 1996;35(12):1753-60.

[3]. Green AR, et al. A behavioural and neurochemical study in rats of the pharmacology of loreclezole, a novel allosteric modulator of the GABAA receptor. Neuropharmacology. 1996;35(9-10):1243-50.