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- Title
Effects of the Free Radical Scavenger Dimethyl Sulphoxide on Experimental Normothermic Ischaemia of the Liver.
- Authors
Chiappa, Antonio; Makuuchi, Masatoshi; Zbar, Andrew P.; Biella, Francesca; Bellomi, Massimo; Biffi, Roberto; Bertani, Emilio; Vezzoni, Aldo; Crosta, Cristiano; Andreoni, Bruno
- Abstract
Background/Aims: This study assessed the effects of intermittent or continuous hepatic ischaemia and reperfusion with or without dimethyl sulphoxide (DMSO) pre-treatment in a rat ischaemic model. Methods: One hundred and eighty rats were divided into three groups undergoing hepatic ischaemia of a total duration of 60, 90 and 120 min. Each group of rats was subdivided to receive either a continuous Pringle manoeuvre or intermittent liver pedicle clamping of 30 or 15 min. Ten minutes before ischaemia induction, 10 rats from each group were pre-treated with DMSO (500 mg/kg, b.w.) intravenously. Results: With continuous hepatic pedicle clamping, survival rates inversely correlated with the duration of ischaemia, with greater survival in the intermittently clamped groups (p < 0.05). DMSO pre-treatment did not affect survival but resulted in a significant reduction in liver enzyme (aspartate aminotransferase, alanine aminotransferase) release on the first postoperative day following total ischaemic times of 90 min or greater (p < 0.05). After 120 min of total ischaemia, DMSO pre-treatment resulted in higher preservation of adenosine 5′-triphosphate liver content (p < 0.05). Conclusion: DMSO may be used to prolong tolerance to inflow occlusion and to limit the adverse effects of ischaemia and reperfusion cycles in an experimental hepatic ischaemia model. Copyright © 2003 S. Karger AG, Basel
- Publication
Digestive Surgery, 2003, Vol 20, Issue 3, p238
- ISSN
0253-4886
- Publication type
Article
- DOI
10.1159/000070391