Abstract
The sedative, anxiolytic and muscle-relaxant effects of the ethyl acetate leaf extract of Baphia nitida (BN) was investigated in intact mice, using the hole-board head-dip test for exploratory behavioural effect, elevated plus maze (EPM) and Y-maze (YM) models of anxiety; chimney, inclined screen, traction and climbing tests for muscle-relaxant effects. In each of these tests, BN (100-400mg/kg, p.o.), diazepam (1mg/kg, i.p.) or distilled water (10ml/kg, p.o.) was administered, 30 or 60min before performing the tests in mice. For exploratory behavioural test, number of head-dip within 15min was counted. For EPM and YM tests, the cumulative time spent in open and closed arms was recorded within 5min. In the muscle-relaxant tests, mice were subjected to modified models such as chimney, inclined screen, traction and climbing tests. BN produced a significant (P<0.05) dose-related decrease in exploratory behaviour in the head-dip test and prolongation of cumulative time spent in open arms of both EPM and YM. BN did not show any significant effect in the chimney and traction tests, but produced significant, dose-dependent muscle relaxation in the inclined screen and climbing tests. Furthermore, BN (200-1200microg/ml) non-competitively...Continue Reading
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