Protective effects of resveratrol on small intestines against intestinal ischemia-reperfusion injury in rats.
OBJECTIVE
The aim of this study was to determine whether resveratrol could prevent intestinal tissue injury induced by ischemia-reperfusion (I/R).


METHODS
Intestinal I/R was induced in rats' intestines by 60-min occlusion of the superior mesenteric artery, followed by a 60-min reperfusion. Thirty rats were divided into three groups as follows: sham (group 1), control (group 2), and the treatment groups (group 3). The rats in the treatment group received resveratrol both before ischemia and before reperfusion. In all groups, serum aspartate aminotransferase, alanine aminotransferase, and lactate dehydrogenase levels were determined. Total antioxidant capacity (TAC), catalase, total oxidative status (TOS), oxidative stress index (OSI), and myeloperoxidase (MPO) in the intestinal tissue were measured. Intestinal tissue histopathology was also evaluated by light microscopy.


RESULTS
The levels of liver enzymes in group 3 were significantly lower than those in group 2 (P < 0.05). TAC in the intestinal tissue was significantly higher in group 3 than in group 2 (P < 0.05). TOS, OSI, and MPO in the intestinal tissue were significantly lower in group 3 than in group 2 (P < 0.05 for all). Histological tissue damage was milder in the resveratrol treatment group than in the control group.


CONCLUSIONS
The results of this study indicated that resveratrol treatment limits the oxidative injury of the small intestine induced by I/R in rats. However, more precise investigations are required to evaluate the antioxidative effect of resveratrol on small intestine tissue damage in clinical and experimental models.
Department of General Surgery, Harran University Medical Faculty, Sanliurfa, Gaziantep, Turkey. fahrettinyildiz@hotmail.com
Fahrettin
F
Yildiz
Alpaslan
A
Terzi
Sacid
S
Coban
Hakim
H
Celik
Nurten
N
Aksoy
Muharrem
M
Bitiren
Hale
H
Cakir
Mustafa K
MK
Ozdogan
D000410:Alanine Transaminase / Q000097:blood; D000818:Animals; D000975:Antioxidants / Q000378:metabolism / Q000494:pharmacology*; D001219:Aspartate Aminotransferases / Q000097:blood; D015415:Biomarkers / Q000097:blood; D002374:Catalase / Q000378:metabolism; D004195:Disease Models, Animal; D007421:Intestine, Small / Q000098:blood supply* / Q000378:metabolism / Q000473:pathology; D007770:L-Lactate Dehydrogenase / Q000097:blood; D008099:Liver / Q000187:drug effects / Q000201:enzymology; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects; D009195:Peroxidase / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar; D015427:Reperfusion Injury / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D000077185:Resveratrol; D013267:Stilbenes / Q000494:pharmacology*
D000975:Antioxidants; D015415:Biomarkers; D013267:Stilbenes; D007770:L-Lactate Dehydrogenase; D002374:Catalase; D009195:Peroxidase; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D000077185:Resveratrol