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KMID : 0371420150880020092
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Annals of Surgical Treatment and Research
2015 Volume.88 No. 2 p.92 ~ p.99
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Effect of IL-18 binding protein on hepatic ischemia-reperfusion injury induced by infrarenal aortic occlusion
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Ozsoy Mustafa
Gonul Yucel
Bal Ahmet
Ozkececi Ziya Taner
Celep Ruchan Bahadir
Adali Fahri
Hazman Omer
Kocak Ahmet
Tosun Murat
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Abstract
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Purpose: Severe local and systemic tissue damage called ischemia/reperfusion (IR) injury occurs during the period of reperfusion. Free oxygen radicals and proinflammatory cytokines are responsible for reperfusion injury. IL-18 binding protein (IL-18BP) is a natural inhibitor of IL-18. The balance between IL-18 and IL-18BP has an important role in the inflammatory setting. The present study aimed to investigate whether IL-18BP had a protective role in remote organ hepatic IR injury.
Methods: Wistar-Albino rats were divided into three groups that contained seven rats. Group I (sham): Laparotomy and infrarenal abdominal aorta (AA) dissection were done but no clamping was done. Group II (I/R): The infrarenal AA was clamped by atraumatic microvascular clamp for 30 minutes and then was exposed to 90 minutes of reperfusion. Group III (IR + IL-18BP): 75 μg/kg of IL-18BP in 0.9% saline (1 mL) was administered 30 minutes before infrarenal AA dissection and clamping; 30 minutes of ischemia was applied and then was exposed to 90 minutes of reperfusion.
Results: Serum AST, ALT, and LDH levels were remarkably higher in IR group and returned to normal levels in treatment group. The proinflammatory cytokine levels had decreased in treatment group, and was statistically significant compared with the IR group. Serum levels of total oxidant status and oxidative stress index decreased and levels of total antioxidant status increased by IL-18BP.
Conclusion: This study suggested that IL-18BP has antioxidant, anti-inflammatory and hepatoprotective effects in cases of IR with infrarenal AA induced liver oxidative damage.
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KEYWORD
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Interleukin-18, IL-18 binding protein, Reperfusion Injury, Transplantation, Acute liver injury
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