Effect of bilirubin in ischemia reperfusion injury on rat small intestine

Abstract

Purpose: The aim of this study was to determine the effects of bilirubin in experimental small intestinal ischemia/reperfusion (I/R) injury in rats. Methods: Thirty rats were divided into 5 groups (n 5 6). In group S, saline and in group B, bilirubin, 20 mg/kg were infused via the jugular vein without an additional procedure. In groups S-IR, saline, B1-IR and B2-IR, 10 and 20 mg/kg/h of bilirubin were infused for 2 hours, respectively. In these groups, an I/R procedure was done after infusions by occluding the superior mesenteric artery for 45 minutes followed by 1 hour of reperfusion. After reperfusion, the small intestines were resected for histopathologic and malondialdehyde (MDA) assessments. Mucosal lesions were scored between 0 and 5. Malondialdehyde levels and histopathologic grades were analyzed statistically.