Article Publish Status: FREE
Abstract Title:

Thymoquinone Upregulates Catalase Gene Expression and Preserves the Structure of the Renal Cortex of Propylthiouracil-Induced Hypothyroid Rats.

Abstract Source:

Oxid Med Cell Longev. 2020 ;2020:3295831. Epub 2020 Jul 20. PMID: 32774669

Abstract Author(s):

Nasra Ayuob, Maha Jameal Balgoon, Ahmed A El-Mansy, Wafaa A Mubarak, Alaa El-Din L Firgany

Article Affiliation:

Nasra Ayuob


Background: The association between hypothyroidism and renal diseases has been described in many studies.was among the recently reported natural product that has the potential to prevent renal tissue damage and fibrosis. The aim of this study was to evaluate the possible protective effect of thymoquinone on the structure of the renal cortex of hypothyroid rats and explore the mechanism behind it.

Methods: An experimental model of hypothyroidism was induced in adult male Wistar rats by administration of propylthiouracil (6 mg/kg/body weight). One hypothyroid group was treated with thymoquinone at the dose of 50 mg/kg/body weight and compared to the untreated group. Thyroid function and oxidant/antioxidant status were assessed in the serum. Catalase gene expression was assessed using the real-time polymerase chainreaction. The kidney was assessed both histologically and immunohistochemically.

Results: Administration of propylthiouracil resulted in a significant decrease in the serum levels of nitric oxide, reduced glutathione, and superoxide dismutase activity while the level of malondialdehyde significantly (<0.001) increased. Administration of thymoquinone alleviated this effect on the thyroid hormones and significantly increased the serum levels of antioxidants. Thymoquinone significantly (<0.001) upregulated catalase transcription by about 24-fold and could block the hypothyroidism-induced glomerular and tubular injury.

Conclusion: Thymoquinone may have a potential protective effect against hypothyroidism-induced renal injury acting through the attenuation of the oxidative stress and upregulation of renal catalase gene expression.

Study Type : Animal Study

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