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Protective Effect of Oenanthe javanica Extract on Acetaminophen-induced Hepatotoxicity in Rats  

Park, Jong-Cheol (Department of Oriental Medicine Resources, Sunchon National University)
Kim, Jong-Yeon (College of Medicine, Yeungnam University)
Lee, Youn-Ju (College of Medicine, Yeungnam University)
Lee, Ji-Seon (College of Pharmacy, Yeungnam University)
Kim, Bo-Geum (College of Pharmacy, Yeungnam University)
Lee, Seung-Ho (College of Pharmacy, Yeungnam University)
Nam, Doo-Hyun (College of Pharmacy, Yeungnam University)
Publication Information
YAKHAK HOEJI / v.52, no.4, 2008 , pp. 316-321 More about this Journal
Abstract
The hepatoprotection by the methanol extract of Oenanthe javanica DC (water dropwort) (OJME) was investigated in Sprague Dawley rats with inducing liver damage by acetaminophen. After OJME administration for 1 week, the increase of hepatic lipid peroxide level by acetaminophen-induced hepatotoxicity was significantly reduced. In case of phase I microsomal enzyme systems including cytochrome P-450, aminopyrine N-demethylase and aniline hydroxylase, any significant differences between in control and in OJME-pretreated group was observed after acetaminophen treatment. However, the pretreatment of OJME maintained the hepatic glutathione level and the activity of liver cytosolic glutathione S-transferase, which was significantly decreased by the acetaminophen intoxication. Among the glutathione-generating system, glutathione reductase was more responsible for its biosynthesis rather than ${\gamma}-glutamylcystein$ synthetase. OJME itself showed the strong inhibition activity on DPPH radical generation. In conclusion, OJME administration maintains the liver glutathione pool and hepatic glutathione S-transferase activity, in addition with its high anti-oxidative capability, to show hepatoprotective effect from acetaminophen intoxication.
Keywords
water dropwort; Oenanthe javanica; acetaminophen; hepatoprotection; glutathione pool;
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