抗凝血酶III对大鼠60 min热肠缺血再灌注损伤的保护作用。

A Ozden, C Tetik, A Bilgihan, N Calli, B Bostanci, O Yis, E Düzcan
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引用次数: 40

摘要

研究了抗凝血酶III对大鼠60 min热肠缺血再灌注损伤的影响。取体重220 ~ 250 g的Sprague-Dawley大鼠分为3组:1组假手术组(无IR损伤,n = 8)、2组缺血对照组(对照组,乳酸林格氏液输注,n = 8)、3组抗凝血酶III治疗组(缺血前250 U/kg, n = 8)。阻断肠系膜上动脉60 min诱导肠缺血,再灌注120 min后观察丙二醛(MDA)水平、髓过氧化物酶活性(MPO)及黏膜损伤。与假手术组比较,对照组大鼠MDA水平和MPO活性升高,组织病理损伤严重(P < 0.05)。与对照组相比,3组MDA水平和MPO活性降低,组织病理损伤减轻(P < 0.05)。抗凝血酶III治疗可显著抑制粘膜组织中脂质过氧化产物和中性粒细胞的积累。我们得出结论,在肠缺血前用抗凝血酶III治疗可以防止大鼠的组织损伤。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Antithrombin III prevents 60 min warm intestinal ischemia reperfusion injury in rats.

We investigated the effect of antithrombin III on 60 min warm intestinal ischemia-reperfusion (IR) injury in rats. Sprague-Dawley rats, weighing 220-250 g, were divided into three groups: group 1 sham-operated group (no IR injury, n = 8), group 2 ischemic control group (control, Ringer's lactate infused, n = 8), group 3 Antithrombin III treated group (250 U/kg before ischemia, n = 8). Intestinal ischemia was induced in rats by occluding the superior mesenteric artery for 60 min. Malondialdehyde (MDA) levels, myeloperoxidase activity (MPO) and mucosal damage were investigated after 120 min reperfusion. Elevated MDA levels and MPO activity and severe histopathological damage were observed in the control group compared with the sham group (P < 0.05). Decreased MDA levels and MPO activity and less histopathological damage were detected in group 3 compared with the control group (P < 0.05). Accumulation of lipid peroxidation products and neutrophils in mucosal tissues were significantly inhibited by antithrombin III treatment. We conclude that treatment with antithrombin III before intestinal ischemia prevents histological damage in rats.

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