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Cannabidivarin, a non-psychotropic phytocannabinoid, has been identified and recognized for its antioxidant and neuroprotective properties, with potential effects on central nervous system (CNS) ailments.
The purpose of the present study was to investigate the depression-relieving potential of cannabidivarin in both stressed and unstressed mice via the CUMS (chronic unpredictable mild stress) model through in-vivo analysis.
Swiss male albino mice were exposed to the CUMS protocol daily for three consecutive weeks, resulting in depression-like behavioral symptoms. Imipramine at a dose of 15 mg/kg and cannabidivarin at doses of 50, 100, and 200 mg/kg were administered for three weeks to different groups of both stressed and unstressed mice.
Both imipramine (15 mg/kg) and cannabidivarin (200 mg/kg), after 21 consecutive days of administration, significantly reduced the immobility time in mice exposed to stress compared to the stressed group given saline. Neither treatment significantly affected the locomotor activity in either stressed or unstressed mice. Cannabidivarin showed antidepressant potential by reducing immobility in stressed mice, similar to imipramine, at a dose of 15 mg/kg. Additionally, both cannabidivarin (200 mg/kg) and imipramine (15 mg/kg) significantly lowered elevated plasma corticosterone, nitrite levels, and monoamine oxidase-A activity in the brains of stressed mice. Both treatments also notably reversed the chronic stress-induced decrease in catalase activity.
In conclusion, cannabidivarin demonstrated significant depression-relieving potential in mice exposed to chronic unpredictable stress using the CUMS model. These effects are likely mediated through its interaction with cannabinoid receptors, as supported by in-vivo findings and the well-established role of phyto-cannabinoids in modulating responses of endocannabinoid system.
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