Iran J Basic Med Sci. 2011 Sep;14(5):478-83.

Evaluation of Antidepressant-like Effect of Citrus Maxima Leaves in Animal Models of Depression.

Iranian journal of basic medical sciences

Vikram H Potdar, Swati J Kibile

PMID: 23492865 PMCID: PMC3586848

Abstract

OBJECTIVES: This study planned to assess antidepressant like activity of aqueous extract from leaves of Citrus maxima Merr. (Rutaceae).

MATERIALS AND METHODS: Boiling was used for aqueous extraction. Acute toxicity study was performed in mice. Antidepressant activity was studied using locomotor activity test, modified forced swimming test (FST) and tail suspension test (TST). Three doses 100, 200 and 300 mg/kg of aqueous extract of leaves were selected for testing. Fluoxetine (20 mg/kg, i.p.) and imipramine (30 mg/kg, i.p.) were used as the standard drugs.

RESULTS: Aqueous extract of Citrus maxima leaves significantly reduced immobility time in both TST and FST. In locomotor activity testing it showed psychostimulant effect. Extract increased the climbing behavior in FST, which is similar to effect observed with imipramine.

CONCLUSION: The results of this study suggest that antidepressant like effect of Citrus maxima seems to be mediated by an increase in norepinephrine level in synapses.

Keywords: Antidepressant-like effect; Citrus maxima; Forced swimming test; Tail suspension test

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• Journal Article