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Arch Pharm Res. 2016 Feb;39(2):279-291. doi: 10.1007/s12272-015-0696-2. Epub 2015 Dec 14.

Hepatoprotective effects of zingerone on carbon tetrachloride- and dimethylnitrosamine-induced liver injuries in rats.

Author information

1
College of Pharmacy, Pusan National University, Busan, 46241, Korea.
2
Hazard Substances Analysis Team, Center for Food and Drug Analysis, Busan Regional Food & Drug Administration, 65, 356-Gil, Shinseon-ro, Nam-gu, Busan, 47366, Korea.
3
Department of Anatomy College of Medicine, Pusan National University, Yangsan, 50612, Korea.
4
College of Pharmacy, Pusan National University, Busan, 46241, Korea. mjo@pusan.ac.kr.

Abstract

In this study, we investigated the hepatoprotective and anti-fibrotic effects of zingerone, one of the active components of ginger, against carbon tetrachloride (CCl4)- and dimethylnitrosamine (DMN)-induced liver injuries in rats, respectively. Oral administration of zingerone (10 mg/kg) reduced CCl4-induced abnormalities in liver histology, serum alanine aminotransferase and aspartate aminotransferase levels, and liver malondialdehyde levels. Zingerone treatment attenuated CCl4-induced increases in inflammatory mediators, including tumor necrosis factor-α, interleukin-1β, cyclooxygenase-2, and inducible nitric oxide synthase mRNA levels. Western blot analysis showed that zingerone suppressed activation of nuclear factor-kappa B (NF-κB) p65 and phosphorylation of extracellular signal-regulated kinase, c-Jun NH2-terminal kinase, and p38 mitogen-activated protein kinases (MAPKs). Liver fibrosis induced by DMN (10 mg/kg, intraperitoneally) was ameliorated by administration of zingerone (10 and 20 mg/kg, orally). Zingerone treatment reduced DMN-induced elevation of hydroxyproline content and hepatic stellate cell activation. In conclusion, zingerone showed antioxidative and anti-inflammatory effects in CCl4-intoxicated rats by inhibiting oxidative stress and NF-κB activation via blockade of the activation of upstream MAPKs. Moreover, zingerone had hepatoprotective and anti-fibrotic effects against DMN-induced liver injury suggesting its usefulness in the prevention of liver inflammation and the development of hepatic fibrosis.

KEYWORDS:

Anti-fibrotic effect; Antioxidant; Hepatoprotective effect; MAPKs; NF-κB; Zingerone

PMID:
26667466
DOI:
10.1007/s12272-015-0696-2
[Indexed for MEDLINE]

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