Article Publish Status: FREE
Abstract Title:

Thymoquinone therapy remediates elevated brain tissue inflammatory mediators induced by chronic administration of food preservatives.

Abstract Source:

Sci Rep. 2019 May 7 ;9(1):7026. Epub 2019 May 7. PMID: 31065039

Abstract Author(s):

Ahmed Mohsen Hamdan, Mohammed M Al-Gayyar, Mohamed E E Shams, Udai Salamh Alshaman, Kousalya Prabahar, Alaa Bagalagel, Reem Diri, Ahmad O Noor, Diena Almasri

Article Affiliation:

Ahmed Mohsen Hamdan


Continuous exposure to preservatives such as nitrite salts has deleterious effects on different organs. Meanwhile, Nigella sativa oil can remediate such organ dysfunction. Here, we studied the effect of consumption of thymoquinone (TQ); the main component of Nigella sativa oil on the brain damage induced by sodium nitrite. Forty adult male rats were daily given oral gavage of sodium nitrite (80 mg/kg) with or without thymoquinone (50 mg/kg). Oxidative stress, cytokines of inflammation, fibrotic elements and apoptotic markers in brain tissue were measured. Exposure to sodium nitrite (SN) resulted in increased levels of malondialdehyde, TGF-β, c-reactive protein, NF-κB, TNF-α, IL-1βand caspase-3 associated with reduced levels of glutathione, cytochrome c oxidase, Nrf2 and IL-10. However, exposure of rats' brain tissues to thymoquinone resulted ameliorated all these effects. In conclusion, thymoquinone remediates sodium nitrite-induced brain impairment through several mechanisms including attenuation of oxidative stress, retrieving the reduced concentration of glutathione, blocks elevated levels of pro-inflammatory cytokines, restores cytochrome c oxidase activity, and reducing the apoptosis markers in the brain tissues of rats.

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