Tokyol C, Yilmaz S, Kahraman A, Cakar H, Polat C
Department of Pathology, Kocatepe University, Faculty of Medicine, Afyon, Turkey.
Acta Chir Belg. 2006 Jan-Feb;106(1):68-72. doi: 10.1080/00015458.2006.11679837.
This study was designed to examine the effects of desferrioxamine and quercetin on hepatic ischaemia-reperfusion injury in rat.
Thirty Wistar albino rats were randomized into five groups. Group I was the control group. Group II received no treatment. Group III and group IV received intramuscular injections of desferrioxamine (100 mg/kg per day) and quercetin (50 mg/kg per day) respectively. Group V was administered desferrioxamine and quercetin in combination. After treatment for 3 days, groups II, III, IV, and V were exposed to total hepatic ischaemia for 45 minutes. Plasma alanine aminotransferase levels, malondialdehyde and reduced glutathione activities were measured after reperfusion for 1 hour. Histopathological analysis of liver tissues was carried out.
Our results indicated that tissue malondialdehyde levels and histopathological liver damage scores were significantly higher in the ischaemia-reperfusion group than in the control group. Administration of desferrioxamine, quercetin, and desferrioxamine+quercetin significantly decreased these parameters. Plasma alanine aminotransferase levels were also increased after ischaemia-reperfusion. Quercetin and desferrioxamine + quercetin significantly decreased the activity of this enzyme when compared to ischaemia-reperfusion group.
The present data suggest that both desferrioxamine and quercetin may be useful to protect against ischaemia-reperfusion induced liver damage.
本研究旨在探讨去铁胺和槲皮素对大鼠肝脏缺血再灌注损伤的影响。
将30只Wistar白化大鼠随机分为五组。第一组为对照组。第二组不接受任何治疗。第三组和第四组分别接受肌肉注射去铁胺(每天100毫克/千克)和槲皮素(每天50毫克/千克)。第五组联合给予去铁胺和槲皮素。治疗3天后,第二、三、四、五组大鼠接受45分钟的全肝缺血处理。再灌注1小时后,检测血浆丙氨酸转氨酶水平、丙二醛和还原型谷胱甘肽活性。对肝组织进行组织病理学分析。
我们的结果表明,缺血再灌注组的组织丙二醛水平和肝组织病理学损伤评分显著高于对照组。给予去铁胺、槲皮素以及去铁胺+槲皮素可显著降低这些参数。缺血再灌注后血浆丙氨酸转氨酶水平也升高。与缺血再灌注组相比,槲皮素和去铁胺+槲皮素显著降低了该酶的活性。
目前的数据表明,去铁胺和槲皮素都可能有助于预防缺血再灌注诱导的肝损伤。