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Abstract Title:

Hepatoprotective Flavonoids in Opuntia ficus-indica Fruits by Reducing Oxidative Stress in Primary Rat Hepatocytes.

Abstract Source:

Pharmacogn Mag. 2017 Jul-Sep;13(51):472-476. Epub 2017 Jul 19. PMID: 28839374

Abstract Author(s):

Jung Wha Kim, Tae Bum Kim, Hyun Woo Kim, Sang Wook Park, Hong Pyo Kim, Sang Hyun Sung

Article Affiliation:

Jung Wha Kim

Abstract:

BACKGROUND: Liver disorder was associated with alcohol consumption caused by hepatic cellular damages. Opuntia ficus-indica fruit extracts (OFIEs), which contain betalain pigments and polyphenols including flavonoids, have been introduced as reducing hangover symptoms and liver protective activity.

OBJECTIVE: To evaluate hepatoprotective activity of OFIEs and isolated compounds by high-speed countercurrent chromatography (HSCCC).

MATERIALS AND METHODS: The extract of O. ficus-indica fruits was fractionated into methylene chloride and n-butanol. The n-butanol fraction was isolated by HSCCC separation (methylene chloride-methanol-n-butanol-water, 5:4:3:5, v/v/v/v). The hepatoprotective activity of OFIEs and isolated compounds was evaluated on rat primary hepatocytes against ethanol-induced toxicity. Antioxidative parameters such as glutathione reductase and glutathione peroxidase (GSH-Px) enzymes and the GSH content were measured.

RESULTS: Two flavonoids, quercetin 3-O-methyl ester (1) and (+)-taxifolin, and two flavonoid glycosides, isorhamnetin 3-O-β-d-glucoside (3) and narcissin (4), were isolated from the n-butanol fraction by HSCCC separation. Among them, compound 2 significantly protected rat primary hepatocytes against ethanol exposure by preserving antioxidative properties of GR and GSH-Px.

CONCLUSIONS: OFIEs and (+)-taxifolin were suggested to reduce hepatic damage by alcoholic oxidative stress.

SUMMARY: Hepatoprotective Flavonoids were isolated from Opuntia ficus-indica by high -speed countercurrent chromatography (HSCCC).

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