Antinociceptive effect of propolis from two different vegetations

Abstract

The aim of this study was to evaluate the analgesic effect of propolis, comparing solutions prepared from propolis obtained from the apiary of the Centre for Agricultural Sciences (CCA) of the Federal University of Piauí, with the extract from the Apis Flora Laboratory. Forty eight mice were divided into six groups treated with hydroethanol solution (vehicle, 20mL/Kg, p.o.), dipyrone (positive control, 50mL/Kg, p.o.), propolis solution 10% (obtained from CCA and Apis Flora, 20mL/Kg, p.o.) and propolis 20% solution (obtained from CCA and Apis Flora, 20mL/Kg, p.o.). The nociceptive stimulus was induced by intraperitoneal (i.p.) administration of 0.6% acetic acid 20 minutes after administration of each treatment. The number of writhing was performed, for a period of 20 minutes, and the inhibition percentage of the painful sensation provided by each treatment were calculated. The results showed that the control group, treated with hydroethanol solution, was significantly different from all others, and those treated with propolis solution at 10% and 20% from, both sources do not differ significantly from each other and not the positive control, showing similar analgesic effect.