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Article Publish Status: FREE
Abstract Title:

Gastroprotective Effect of Myricetin on Ethanol-Induced Acute Gastric Injury in Rats.

Abstract Source:

Evid Based Complement Alternat Med. 2021 ;2021:9968112. Epub 2021 Sep 29. PMID: 34630623

Abstract Author(s):

Hee-Seon Park, Chang-Seob Seo, Eun Bok Baek, Jin-Hyung Rho, Young-Suk Won, Hyo-Jung Kwun

Article Affiliation:

Hee-Seon Park

Abstract:

The flavonoid myricetin is abundant in vegetables and has various bioactive properties, including anti-inflammatory and antioxidative activities. In the present study, we explored the effects of myricetin on alcohol-induced gastric ulcer in a rat model. To induce gastric ulcer, absolute ethanol (5 mL/kg body weight) was orally administrated to each rat. The positive control and myricetin-treated groups were given oral doses of omeprazole (20 mg/kg) or myricetin (12 mg/kg), respectively, 1 hour prior to the administration of absolute alcohol. We found that pretreatment with myricetin significantly decreased alcohol-induced gastric ulcer, hemorrhage, hyperemia, and epithelial cell loss in the gastric mucosa. Myricetin pretreatment reduced the level of malondialdehyde (MDA) and increased that of total glutathione (GSSG/GSH) and superoxide dismutase (SOD) in gastric tissues. In addition, it elevated the expression levels of cyclooxygenase-1 (COX-1) and prostaglandin E(PGE) and decreased the phosphorylation of nuclear factor kappa B (NF-B). Together, these results indicate that myricetin effectively inhibits ethanol-induced acute gastric injury by preventing oxidative damage, stimulating PGEproduction, and inhibiting NF-B activation. We suggest that myricetin may be an alternative treatment for gastric injury caused by alcohol intake.

Study Type : Animal Study

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