Peroxisome proliferator-activated receptor γ agonist reduces the severity of post-ERCP pancreatitis in rats
Aim: To determine the effects of prophylactic peroxisome proliferator-activated receptor (PPARγ) agonist administration in an experimental model of post-endoscopic retrograde cholangiopancreatography (post-ERCP) acute pancreatitis. Methods: Post-ERCP pancreatitis was induced in male Wistar rats by i...
| Authors: | , , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2006 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/114276 |
| Online Access: | http://hdl.handle.net/10261/114276 |
| Access Level: | Open access |
| Keyword: | Pancreatitis Nuclear factor κB Inflammation Endoscopic retrograde cholongio pancreatography Peroxisome proliferator-activated receptor γ |
| Summary: | Aim: To determine the effects of prophylactic peroxisome proliferator-activated receptor (PPARγ) agonist administration in an experimental model of post-endoscopic retrograde cholangiopancreatography (post-ERCP) acute pancreatitis. Methods: Post-ERCP pancreatitis was induced in male Wistar rats by infusion of contrast medium into the pancreatic duct. In additional group, rosiglitazone, a PPARγ agonist, was administered 1 h before infusion of contrast medium. Plasma and pancreas samples were obtained 6 h after the infusion. Results: Infusion of contrast medium into the pancreatic duct resulted in an inflammatory process characterized by increased lipase levels in plasma, and edema and myeloperoxidase activity (MPO) in pancreas. This result correlated with the activation of nuclear factor κB (NFκB) and the inducible NO synthase (iNOS) expression in pancreatic cells. Rosiglitazone reduced the increase in lipase and the level of edema and the increase in myeloperoxidase as well as the activation of NFκB and iNOS expression. Conclusion: A single oral dose of rosiglitazone, given 1 h before post-ERCP pancreatitis induction is effective in reducing the severity of the subsequent inflammatory process. The protective effect of rosiglitazone was associated with NFκB inhibition and the blockage of leukocyte infiltration in pancreas. © 2006 The WJG Press. All rights reserved. |
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