Neuropharmacological profile of hydroalcohol extract of Valeriana edulis ssp. procera roots in mice.
Valerian is the common name given to the crude drug consisting of the underground organs of the species Valeriana. Valeriana edulis ssp. procera Meyer is the Mexican valerian. The aim of the present work was to elucidate the neuropharmacological profile of a hydroalcohol extract of Valeriana edulis roots at doses of 100, 300 and 1000 mg/kg in several experimental models. A dose-dependent anticonvulsant and anxiolytic-like effect of V. edulis was demonstrated. In addition, the extract decreased rotarod performance and traction force and prolonged the pentobarbital-induced sleeping time at high doses. Concomitant administration of valerian extract and pentobarbital showed a synergistic effect on motor coordination and traction force in mice. The anxiolytic-like effect of V. edulis was compared with diazepam and with diphenhydramine and doxylamine, the latter in order to consider the H(1)-antihistamine effect as another possibility to explain, at least in part, the central nervous system depressant effect of valerian. These results also underlie the medical and industrial use of this species and allowed the conclusion that the extract of V. edulis has central nervous depressant properties similar to, but with some differences to V. of ficinalis, a very well known species.[1]References
- Neuropharmacological profile of hydroalcohol extract of Valeriana edulis ssp. procera roots in mice. Oliva, I., González-Trujano, M.E., Arrieta, J., Enciso-Rodríguez, R., Navarrete, A. Phytotherapy research : PTR. (2004) [Pubmed]
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