Abstract
Background: Diosmin has already been described and documented to be neuroprotective, antioxidant and anti-inflammatory. It may possess or hold depressionalleviating activity. Therefore, the purpose of the current research protocol is to investigate the depression-relieving proficiency of diosmin in stressed and unstressed mice.
Methods: Male mice (Swiss albino) were imperiled to an unpredictable chronic stress paradigm every day for three sequential weeks, and depression-resembling behavioral despair was induced. Imipramine 15 mg/kg and diosmin (25, 50 and 100 mg/kg) were dispensed for 21 successive days to discrete groups of stressed and unstressed mice.
Results: Both diosmin (100 mg/kg) and 15 mg/kg imipramine administration for 3 consecutive weeks substantially or significantly diminished the immobility period of mice imperiled to stress in comparison to stressed mice gauzed with the vehicle. Diosmin (25, 50 and 100 mg/kg) and imipramine considerably reinstated the diminished sucrose proclivity (sucrose preference percentage; %) in stressed mice, demonstrating their considerable or substantial depression-relieving effects. The locomotor activities of mice were not considerably altered by these drugs. Antidepressant-like activity of diosmin for immobility periods and preference for sucrose was observed to be analogous to imipramine. Diosmin (100 mg/kg) and imipramine substantially quashed CUMS- persuaded escalation of plasma corticosterone and nitrite levels, malondialdehyde levels and MAO-A activity in the brain of stressed mice. Both drugs also substantially reversed CUMS-prompted reduction in catalase activity and brain glutathione levels.
Conclusion: Accordingly, diosmin revealed significant anti-depressive activity in mice imperiled to chronic mild unpredictable stress paradigm conceivably via mitigation of nitrosative and oxidative stress, reticence of brain MAO-A action, and sink drop of plasma corticosterone degrees.
Graphical Abstract
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