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- W2082020382 abstract "1. Lipid peroxidation can occur in the presence of a cellular antioxidant-oxidant imbalance, but the role of lipid peroxides in cholestasis is not well understood. 2. This study was undertaken in order to: (i) evaluate the behaviour of a product of lipid peroxidation (thiobarbituric acid-reactive species), and of an important antioxidant tripeptide, reduced glutathione, in the course of experimental extrahepatic cholestasis; and (ii) ascertain whether there was a link between this aspect and the alterations in liver morphology. 3. Forty-five male Sprague-Dawley rats (250-300 g) were double bile duct ligated and followed from 1 to 28 days. At the end of each experimental period, blood and liver samples were collected for thiobarbituric acid-reactive species and glutathione determinations. 4. Bile duct ligated rats showed a marked increase in liver weight which was related to cholestasis duration and to some anatomical alterations such as bile duct proliferation and dilation and liver fibrosis (periportal, perivenular, perineoductular and parenchymal). 5. An increase in serum lipid peroxidation was also observed but this was not linked to hepatic thiobarbituric acid-reactive species. Erythrocyte and hepatic glutathione decreased in relation to cholestasis duration. Serum lipid peroxides and erythrocyte glutathione were correlated with liver cell necrosis. 6. In conclusion, experimental extrahepatic cholestasis determines bile duct proliferation and fibrosis, the degree of which is directly related to the duration of cholestasis itself and to liver cell necrotic phenomena.(ABSTRACT TRUNCATED AT 250 WORDS)" @default.
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- W2082020382 date "1995-04-01" @default.
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- W2082020382 title "ALTERED LIPID PEROXIDATION/GLUTATHIONE RATIO IN EXPERIMENTAL EXTRAHEPATIC CHOLESTASIS" @default.
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- W2082020382 doi "https://doi.org/10.1111/j.1440-1681.1995.tb01992.x" @default.
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