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- W2020137195 abstract "<h2>Abstract</h2> <i>Background/Aims:</i> Liver fibrosis is accompanied by both bile ductular proliferation and inflammation under various conditions. The functional consequences and the interrelationships between these changes are unknown. Altered biliary elimination and retention of cholephilic mediators may be a factor in fibrogenesis. Therefore, the relationship between fibrosis, ductular proliferation and functional changes in biliary elimination was studied. <i>Methods:</i> Micronodular liver fibrosis was induced by thioacetamide in rats. The relative amount of bile ductular epithelial cells was determined by microscopic morphometry. The functional changes in bile secretion and metabolism of leukotriene C4 were assessed in isolated perfused livers of treated rats. <i>Results:</i> Pretreatment with thioacetamide <i>in vivo</i> resulted in enhanced bile fluid formation in subsequently isolated and perfused livers. Infusion of isoproterenol into the portal vein stimulated bile flow. Both unstimulated and isoproterenol-stimulated bile flows were increased in fibrotic livers and were correlated with liver content of bile ductular epithelia. In contrast, biliary secretion of infused leukotriene C4 was lowered in correlation with that of taurocholate. Enhanced metabolism resulted in a shift of major fraction in bile from leukotriene C4 to leukotriene D4. <i>Conclusions:</i> Thioacetamide-induced liver fibrosis is associated with an increased number of functionally intact bile ductules that are responsive to isoproterenol stimulating bile fluid formation. In contrast, biliary secretion of cysteinyl-leukotrienes and taurocholate is inhibited and the relative amount of leukotriene D4 is increased. Bile ductular proliferation as well as retention and altered metabolism of leukotrienes are factors associated with the development of liver fibrosis." @default.
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- W2020137195 date "1996-10-01" @default.
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- W2020137195 title "Bile ductular proliferation and altered leukotriene elimination in thioacetamide-induced fibrosis of rat liver" @default.
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- W2020137195 doi "https://doi.org/10.1016/s0168-8278(96)80215-7" @default.
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