Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 11, Issue 30, Pages 4745-4749Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v11.i30.4745
Keywords
Resveratrol; Liver; Transplantation; Rat
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AIM: To study the immuno-modulatory effect of resveratrol (RES) on allograft rejection after liver transplantation in rats. METHODS: Male Sprague-Dawley (SD) rats were selected as donors and male Wistar rats as recipients for a rejection model. The recipients were divided into four groups after orthotopic liver transplantation (OLTx). In the RES A, B, and C groups, RES was given intra-peritoneally once a day (25, 50, and 100 mg/kg, respectively) after OLTx, whereas in the control group, vehicle buffer was given intra-peritoneally once a day. The survival time, serum chemistry, production of cytokines, activation of transcription factor NF-kappa B, and histopathologic findings were then compared among these groups. RESULTS: The mean survival time after OLTx in the RES C group was significantly longer than that in the control group (16.7 +/- 1.2 d vs 9.3 +/- 0.6 d, P < 0.01). On the 7th post-transplant day the serum albumin level significantly improved in the RES C group, the serum total bile acid and alanine aminotransferase (ALT) levels were significantly lower in the RES C group, the serum IL-2 and INF-gamma levels were significantly lower in the RES C group, and the activation of transcription factor NF-kappa B in peripheral blood T lymphocytes was significantly suppressed in the RES A, B, and C groups in comparison to those in the control group. On the 7th post-transplant day, a histological examination revealed apparent difference in the severity of rejection between the RES C group and control group. CONCLUSION: RES has an immuno-suppressive property as well as protective effect on hepatocytes under allograft rejection. It might serve as a novel agent for reducing the severity of hepatic allograft rejection in rats. (C) 2005 The WJG Press and Elsevier Inc. All rights reserved.
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