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Abstract
Liver resections are frequently associated with significant ischemia-reperfusion (I-R) injury of the liver remnant. The aim of this study was to investigate whether deferoxamine (DFO) can ameliorate I-R injury during major hepatectomies performed under vascular exclusion of the liver in a porcine model. Twelve female domestic pigs were divided into control (n = 6) and DFO treatment (n = 6) groups and subjected to 150 min. liver ischemia followed by 70% hepatectomy and 24 hours reperfusion. Pigs in the DFO group received a continuous intravenous infusion of 100 mg/kg DFO. Liver remnant injury was evaluated by liver function tests, hepatic histology as well as serum and liver tissue malondialdehyde (MDA) concentrations. Deferoxamine-treated animals had reduced total bilirubin, γ-glutamyl transferase and ammonia levels as well as hepatocyte necrosis and oxidative injury. In a subsequent randomized clinical trial using DFO for I-R protection during major liver surgery, preliminary results revealed amelioration of hepatocellular damage, oxidative and inflammatory serum markers and apoptotic response in liver remnant biopsies.