Abstract
Pathogenesis and treatment of inflammatory gut barrier failure is an important problem in critical care. In this study, we examined the role of pioglitazone, an agonist of peroxisome proliferator-activated receptor gamma, in gut barrier failure during experimental peritonitis in rats. Male rats were randomly divided into three groups as follows: sham, sepsis, and sepsis + pioglitazone. Sepsis was achieved by means of the cecal ligation and puncture (CLP). Pioglitazone was administered intraperitoneally (10 mg/kg/d) for 7 d before the experiment. Animals were killed at 24 h or followed 72 h for survival. The tissue level of tumor necrosis factor-α, interleukin-6, superoxide dismutase, malondialdehyde, and myeloperoxidase was measured. Intestinal mucosa injury was assessed histologically. The plasma fluorescein isothiocyanate-dextran, D-lactic acid, and intestinal diamine oxidase were determined to evaluate the permeability and integrity of intestinal mucosal epithelium. Vena cava blood and tissue samples were used to monitor bacterial translocation. Intestinal inflammation, oxidize stress, neutrophil infiltration, morphology injury, and impaired permeability of the small intestine in the CLP group were found more severe than tho...Continue Reading
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