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Abstract Title:

Thymoquinone and quercetin protect against hepatic steatosis in association with SIRT1/AMPK stimulation and regulation of autophagy, perilipin-2, and cytosolic lipases.

Abstract Source:

Arch Physiol Biochem. 2022 Oct 20:1-14. Epub 2022 Oct 20. PMID: 36264662

Abstract Author(s):

Hend Ashour, Laila A Rashed, Radwa T M Hassanein, Basma E Aboulhoda, Hasnaa A Ebrahim, Mohamed H Elsayed, Miran A Elkordy, Omaima M Abdelwahed

Article Affiliation:

Hend Ashour

Abstract:

BACKGROUND: We sought to investigate thymoquinone (TQ)/quercetin combination in preventing hepatic steatosis (HS).

MATERIALS AND METHODS: The included rat groups; (1) Control, (2) HS model, (3) HS treated with TQ 10 mg.kg.d, (4) HS treated with quercetin 50 mg.kg.d, and (5) HS treated with both compounds for 4 weeks.

RESULTS: TQ/quercetin co-treatment augmented the anti-steatosis potential of each ingredient. The results revealed more ( < 0.001) sirtuin (SIRT1)/AMP-activated protein kinase (p-AMPK) upregulation compared to each treatment in line with autophagy protein Atg7 enhancement, and suppressed pro-inflammatory and oxidation markers. They diminished the hepatic lipogenic enzymes and perilipin-2 and activated the cytosolic lipases adipose triglyceride lipase (ATGL). Histological and Biochemical analysis revealed diminished lipid deposition and improved liver enzymes (alanine aminotransferase [ALT] and aspartate aminotransferase [AST]) compared to the data of separate treatments.

CONCLUSION: TQ and quercitin effectively upregulated SIRT1/p-AMPK and regulated hepatic perilipin-2/ATGL, inflammation and oxidative stress, preserved liver structure and function. TQ/quercetin combination additively prevents HS.

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