AIM: To assess the effect of iron reduction after phlebotomy in rats with "normal" hepatic iron concentration (HIC) on the progression of hepatic fibrosis, as a result of bile duct ligation (BDL). METHODS: Rats underwent phlebotomy before or after sham operation or BDL. Animals undergone only BDL or sham operation served as controls. Two weeks after surgery, indices of hepatic damage and fibrosis were evaluated. RESULTS: Phlebotomy lowered HIC. Phlebotomy after BDL was associated with body weight increase, lower hepatic weight, less portal hypertension, less periportal necrosis, less portal inflammation, lower hepatic activity index score and higher albumin levels. On the other hand, phlebotomy before BDL was associated with body weight decrease and hepatic activity index score increase. Phlebotomy after sham operation was not associated with any hepatic or systemic adverse effects. CONCLUSION: Reduction of HIC after induction of liver damage may have beneficial effects in BDL rats. However, iron deficiency could induce impairment of liver function and may make the liver more susceptible to insults like BDL.
AIM: To assess the effect of iron reduction after phlebotomy in rats with "normal" hepatic iron concentration (HIC) on the progression of hepatic fibrosis, as a result of bile duct ligation (BDL). METHODS:Rats underwent phlebotomy before or after sham operation or BDL. Animals undergone only BDL or sham operation served as controls. Two weeks after surgery, indices of hepatic damage and fibrosis were evaluated. RESULTS: Phlebotomy lowered HIC. Phlebotomy after BDL was associated with body weight increase, lower hepatic weight, less portal hypertension, less periportal necrosis, less portal inflammation, lower hepatic activity index score and higher albumin levels. On the other hand, phlebotomy before BDL was associated with body weight decrease and hepatic activity index score increase. Phlebotomy after sham operation was not associated with any hepatic or systemic adverse effects. CONCLUSION: Reduction of HIC after induction of liver damage may have beneficial effects in BDL rats. However, iron deficiency could induce impairment of liver function and may make the liver more susceptible to insults like BDL.
Authors: R J Fontana; J Israel; P LeClair; B F Banner; K Tortorelli; N Grace; R A Levine; G Fiarman; M Thiim; A S Tavill; H L Bonkovsky Journal: Hepatology Date: 2000-03 Impact factor: 17.425
Authors: J R Jonsson; A D Clouston; Y Ando; L I Kelemen; M J Horn; M D Adamson; D M Purdie; E E Powell Journal: Gastroenterology Date: 2001-07 Impact factor: 22.682
Authors: Stephen Pianko; John G McHutchison; Stuart C Gordon; Shanon Heaton; Zachary D Goodman; Keyur Patel; Cherise M Cortese; Elizabeth M Brunt; Bruce R Bacon; Lawrence M Blatt Journal: J Interferon Cytokine Res Date: 2002-04 Impact factor: 2.607