Anxiolytic-like effects of standardized extract of Justicia pectoralis (SEJP) in mice: Involvement of GABA/benzodiazepine in receptor.

Autor: Venâncio ET; Department of Physiology and Pharmacology, Faculty of Medicine, Federal University of Ceara, Fortaleza, Brazil., Rocha NF, Rios ER, Feitosa ML, Linhares MI, Melo FH, Matias MS, Fonseca FN, Sousa FC, Leal LK, Fonteles MM
Jazyk: angličtina
Zdroj: Phytotherapy research : PTR [Phytother Res] 2011 Mar; Vol. 25 (3), pp. 444-50. Date of Electronic Publication: 2010 Aug 25.
DOI: 10.1002/ptr.3274
Abstrakt: Justicia pectoralis (Acanthaceae) is used as an antiinflammatory, antimicrobial and bronchodilator, and its extract exerts an anxiolytic-like effect profile in animal models. This work presents the behavioral effects of an aqueous standardized extract of Justicia pectoralis (SEJP) in animal models, such as the elevated plus maze (EPM), light/dark, open field, rota rod and pentobarbital sleep time. The extract was administered intragastrically to male mice at single doses of 50, 100 and 200 mg/kg, while diazepam 1 or 2 mg/kg was used as a standard drug and flumazenil 2.5 mg/kg was used to evaluate the participation of benzodiazepinic receptors. The results showed that, similar to diazepam (1 mg/kg), SEJP significantly modified all the observed parameters in the EPM test, without altering the general motor activity in the open field, rota rod and pentobarbital sleep time tests. Flumazenil reversed not only the diazepam effect but also the SEJP effect. In the same way, all doses of SEJP increased the time of permanence in the light box in the light/dark test. The results showed that SEJP presented an anxiolytic-like effect, disproving sedative effects.
(Copyright © 2010 John Wiley & Sons, Ltd.)
Databáze: MEDLINE
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