Hepatic Ischemia/Reperfusion Injury Is Diminished by Atorvastatin in Wistar Rats

Background and Aims. Temporal occlusion of the hepatoduodenal ligament (HDL) is often used during liver surgeries in order to reduce blood loss, resulting in ischemia/reperfusion injury (I/R). The aim of the study was to investigate the effects of atorvastatin (ATOR) on hepatic I/R injury and on serum levels of tumor necrosis factor-alpha (TNF-alpha), endothelin-1 (ET-1), antithrombin IH (ATIII) and intracellular adhesion molecule-1 (ICAM-1). Methods. Liver ischemia was induced in Wistar rats by clamping the HDL for 60 min, followed by either 60 or 180 min reperfusion. Rats received either vehicle or 10 mg/kg ATOR before hepatic I/R. Control group received sham surgery. Livers were examined for histological damage and serum AST, ALT, TNF-alpha, ET-1, ATIII and ICAM-1 concentrations were measured. Results. After I/R, AST and ALT were significantly elevated, ATM levels were significantly depleted, both TNF-alpha and ICAM-1 levels increased and ET-1 was significantly elevated (at 180 min) ATOR pretreatment attenuated these alterations and diminished histological injury scores. Conclusions. Our results show that ATOR protects the liver from I/R injury. (C) 2014 IMSS. Published by Elsevier Inc.