Task: Intent Identification
Input (English): The combination of hepatic ischemia and cholestasis, both identified as risk factors for oxidative stress, potentially enhances postischemic reperfusion (I/R) injury. Preoperative biliary drainage relieves oxidative stress and therefore seems a worthwhile intervention in cholestatic patients undergoing major liver resection.', 'To assess the effect of biliary decompression on I/R injury in a reversible bile duct ligation (BDL) model in the rat.', 'Male Wistar rats were randomized into 3 groups. The first group underwent 30 minutes of partial liver ischemia after 7 days BDL; the second group underwent internal drainage (ID) after 7 days BDL and after 5 days, were subjected to partial liver ischemia. The last group (control animals) underwent 2 sham laparotomies and subsequent ischemia. Inflammatory response (interleukin [IL]-6, IL-10, GRO/KC, and interferon-gamma), hepatic damage and oxidative stress were assessed during 24 hours of reperfusion.', 'Cholestatic rats, as compared with the ID and control groups, showed significantly increased I/R injury as determined by transaminase release, histologic injury score and neutrophil infiltration. Plasma IL-6, IL-10, and GRO/KC (a CXC chemokine) were significantly increased in the BDL group (P < .05 vs control and ID). Moreover, the hepatic antioxidant capacity was strongly decreased in the BDL group (P < .01 vs control and ID). No significant differences for most parameters were seen in the ID group as compared to the control group.
Output (English): 1