PHARMACOLOGICAL SCREENING OF GERANIUM OIL FOR ITS ANTIDEPRESSANT POTENTIAL
Abstract
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 Objective: The aim of the present study was to investigate the effect of geranium oil on depression-related behavior of mice in the forced swimming test (FST), tail suspension test (TST), and open field test (OFT).
Materials and Methods: The animals were divided into three groups containing six animals in each group. Group I served as a control group and treated with dist. Water (10 ml/kg, p.o), Group II served as standard and treated with imipramine (15 mg/kg, p.o) and Group III served as test group and treated with geranium oil (200 mg/kg, inhalation method) for 14 days. On the 14 days after the treatment of drug and standard total duration of immobility was recorded for 6 minutes using TST, FST and the total number of crossings, time spent in center, time spent in periphery recorded for 5 minutes in OFT.
Results: Geranium oil significantly reduced the duration of immobility as compared to control group in FST and TST model. Total number of crossings, time spent in the center significantly increased, whereas time spent in periphery significantly decreased as compared to control group in OFT.
Conclusion: These results suggested that geranium oil has the significant antidepressant potential.
Keywords: Depression, Geranium oil, Tail suspension test, Forced swim test, Open field test.
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