EVALUATION OF ANTI-ANXIETY EFFECT OF NIFEDIPINE COMPARED TO DIAZEPAM IN SWISS ALBINO MICE USING BEHAVIOURAL MODELS
DOI:
https://doi.org/10.22159/ijpps.2020v12i5.37211Keywords:
Anxiolytic, Dihydropyridines, Behavioural model, MiceAbstract
Objective: The present study was undertaken to evaluate the acute and chronic anxiolytic effects of nifedipine in comparison to diazepam using in Swiss Albino mice using two behavioral models.
Methods: 30 Swiss albino mice were divided into 5 groups with 6 mice in each group. The study was conducted in two phases to evaluate acute and chronic effects. The groups consisted of diazepam (1 mg/kg), 3 doses of nifedipine (2.6 mg/kg, 5.2 mg/kg and 10.4 mg/kg) and vehicle control. The Elevated Plus Maze (EPM) and Light and Dark box were used to evaluate the anti-anxiety effects. The number of entries and time spent in the open arm of the elevated plus-maze and in the light area of light and dark box model were noted and compared among the 5 groups. Observations were analyzed using ANOVA and post hoc Tukey's test.
Results: Nifedipine (5.2 mg/kg and 10.4 mg/kg) significantly increased the number of entries and time spent in the open arm compared to vehicle control in the EPM test (p<0.001). Similarly, in the light and dark box test, nifedipine (5.2 mg/kg and 10.4 mg/kg) increased the number of entries and time spent in the light area compared to vehicle control (p<0.05). However, the low dose of nifedipine (2.6 mg/kg) did not exhibit significant findings.
Conclusion: Two doses of nifedipine (5.2 mg/kg and 10.4 mg/kg) possess anti-anxiety effects both on acute and chronic administration in both elevated plus maze and light and dark box model.
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