Effects of carbon dioxide pneumoretroperitoneum on free radical formation in remote organs and use of verapamil as an antioxidant

Journal of Endourology
Cem GulerCetin Dincel

Abstract

Pneumoretroperitoneum (Prp) acts as an ischemia/reperfusion (I/R) model. Ischemia/reperfusion (I/R) injury causes production of reactive oxygen species, which affect organs remote from the sites of I/R. The aim of this study was to assess the remote organ changes after Prp and to explore the effects of antioxidants. Eighteen adult rabbits were randomized to three groups, each consisting of six rabbits. Group I (control) underwent balloon dissection of the left retroperitoneal space without gas insufflation. In group II (Prp), carbon dioxide at 10 mm Hg was applied for 2 hours after the balloon dissection (ischemia period) and for 1 hour after desufflation (reperfusion period). In group III (Prp + antioxidant), 5 minutes before the experiment, verapamil at 0.2 mg/kg was given intravenously and the same procedure was employed as in group II. Hepatic, pulmonary, opposite kidney, and treated kidney malondialdehyde (MDA) and reduced glutathione (GSH) levels were evaluated to show response to Prp. Pneumoretroperitoneum exerted oxidative stress on all tissues with an increase of MDA (P < 0.05) and a decrease of GSH (P < 0.05). The verapamil-treated group showed lower values of MDA (P < 0.05) and higher values of GSH (P < 0.05) than gr...Continue Reading

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Citations

Dec 12, 2012·Naunyn-Schmiedeberg's Archives of Pharmacology·Puja GulatiNirmal Singh
Jun 9, 2012·Surgical Laparoscopy, Endoscopy & Percutaneous Techniques·Eugenia YiannakopoulouChristos Tsigris
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