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ISSN (Print): 2665-9786
ISSN (Online): 2665-9794

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Research Article

Evaluation of Anti-Depressant Potential of Standardized Hydroethanolic Extract of S. barbata D. Don Using Chronic Unpredictable Mild Stress Model

In Press, (this is not the final "Version of Record"). Available online 06 August, 2024
Author(s): Arzoo Pannu* and Ramesh K. Goyal
Published on: 06 August, 2024

Article ID: e26659786304405

DOI: 10.2174/0126659786304405240709114804

Price: $95

Abstract

Background: S. barbata D. Don is a Chinese herb, that belongs to the family Lami-aceae. It has established traditional use in ethnomedicine for treating various ailments, includ-ing mood disorders and sleep disorders, which led to growing interest in exploring its neuro-logical potential, particularly as a potential anti-depressant agent.

Aims: This study explores the anti-depressant potential of the HSBE utilizing a Chronic Un-predictable Mild Stress-induced depression model in mice. Additionally, the research aims to elucidate the underlying mechanisms of action.

Methods: Swiss albino mice were subjected to a 3-week CUMS paradigm and subsequently administered HSBE at doses of 200 and 400 mg/kg via oral administration. The behavioral alterations were evaluated using the FST, TST, OFT, and SPT. Brain levels of serotonin, dopa-mine, and nor-epinephrine were estimated in different brain regions (cortex, hippocampus, and hypothalamus) to uncover the molecular mechanism. Additionally, assays for monoamine oxi-dase-A, monoamine oxidase-B, and antioxidant enzyme activities were conducted. Plasma ni-trite and corticosterone levels were also measured to get further insight into potential mecha-nisms underlying the anti-depressant effects of HSBE.

Results: HSBE significantly ameliorated depressive-like behavior induced by CUMS para-digm, as evidenced by reduced immobility in FST and TST, increased locomotor activity in OFT, and improved sucrose preference in SPT. Neurochemical analysis revealed a significant increase in serotonin, dopamine, and norepinephrine levels in the cortex, hippocampus, and hypothalamus of HSBE-treated mice, implying a potential regulation of monoaminergic neuro-transmitter levels. Moreover, biochemical analyses demonstrated a significant inhibition of both MAO-A and MAO-B activity, contributing to the increase of the brain levels of neuro-transmitters. The administration of HSBE also led to a significant enhancement of antioxidant enzyme activities and reduced brain lipid peroxidation, indicating a pronounced antioxidant effect of HSBE. Furthermore, decreased plasma nitrite and corticosterone levels provided ad-ditional insights into HSBE's potential multi-targeted anti-depressant mechanism.

Conclusion: This study indicates that HSBE exhibits robust anti-depressant properties, sup-ported by behavioral, neurochemical, and biochemical alterations. These findings underscore the therapeutic promise of HSBE as a natural intervention for depressive disorders, warranting further clinical exploration.

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