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Revista Cubana de Plantas Medicinales
versión On-line ISSN 1028-4796
Resumen
BUZNEGO RODRIGUEZ, María Teresa et al. Effect of chloroform and toluene extracts of Cestrum nocturnum L. on the animal´s exploring behavior and analgesia tests. Rev Cubana Plant Med [online]. 2005, vol.10, n.2. ISSN 1028-4796.
The effect of acute administration of chloroform and toluene extracts from Cestrum nocturnum L. dry leaves on the animal´s exploring behavior and analgesia test models. The objective was to begin looking for the active principles related to sedative and analgesic effects of the plant. The chloroform fraction caused hypoactivity and reduced dose-dependent response in acetic acid-induced contortion test without changes in reaction time in the hot-plate method. The toluene fraction caused a decrease of the animal's exploring behavior with similar effect in total length of stay in the 10-cm diameter central circle and a reduction of dose-dependent response to pain in the acetic acid model. In the hot-plate method, this fraction was not effective. The results suggest that an active principle with peripheral analgesic effect and another one with sedative effect are present in both extracts.
Palabras clave : Cestrum nocturnum L; exploring behavior; analgesia.