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Article Publish Status: FREE
Abstract Title:

6-Shogaol Attenuates Traumatic Brain Injury-Induced Anxiety/Depression-like Behavior via Inhibition of Oxidative Stress-Influenced Expressions of Inflammatory Mediators TNF-α, IL-1β, and BDNF: Insight into the Mechanism.

Abstract Source:

ACS Omega. 2022 Jan 11 ;7(1):140-148. Epub 2021 Dec 28. PMID: 35036685

Abstract Author(s):

Muhammad Afzal, Imran Kazmi, Anwarulabedin Mohsin Quazi, Shah Alam Khan, Ameeduzzafar Zafar, Fahad A Al-Abbasi, Faisal Imam, Khalid Saad Alharbi, Sami I Alzarea, Neelam Yadav

Article Affiliation:

Muhammad Afzal

Abstract:

Anxiety and depression are among the major traumatic brain injury-induced psychiatric disorders in survivors. The present study was undertaken to investigate the beneficial effects of 6-Shogaol against depression-like behavior and anxiety, induced by traumatic brain injury (TBI), in mice. The mice were administered either fluoxetine, vehicle, or three different doses (10, 20 and 30 mg/kg/day, i.p.) of 6-Shogaol after 10 days of impact-accelerated TBI. The treatment was continued for 14 consecutive days. Elevated plus maze test, marble burying test, staircase test, and social interaction test were employed to investigate the effect of 6-Shogaol on anxiety-like behavior. The impact of treatment on depression-like behavior was assessed using hyper-emotionality behavior or open-field exploration test. The expressions of brain-derived neurotrophic factor (BDNF), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and malondialdehyde (MDA) levels in brain tissue and brain water were measured to elucidate possible mechanisms involved. 6-Shogaol treatment (higher dose) was able to attenuate anxiety/depression-like behaviors in mice with TBI. 6-Shogaol treatment also altered MDA formation and expressions of TNF-α and IL-1β that act as major inflammation-inducing cytokines in brain tissue. Additionally, brain BDNF levels were also affected by 6-Shogaol treatment. Although the lower dose of 6-Shogaol was able to rectify inflammation and BDNF expression in brain tissue, it was unable to improve anxiety/depression-like behaviors. 6-Shogaol treatment produced beneficial effects for TBI-induced anxiety/depression-like behaviors in mice, which could be attributed to the reduction of lipid peroxidation, inflammation, and enhanced BDNF expression.

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