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猪肢体体外循中神经组织损伤和固有免疫的实验研究

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摘要 目的:观察体外循环灌注保存猪肢体12h后神经组织病理改变和固有免疫系统的改变,探讨固有免疫系统在体外循环灌注中对猪肢体神经组织的影响。方法:实验分3组,实验组:随机取10头实验用landrace猪为实验对象,取每头猪的1条前肢体进行实验,经32℃体外循环灌注保存12h;对照组:实验组猪的另一前肢放置于4℃冰箱低温保存;再灌注组:将2例对照组肢体体外循环灌注1h。收集3组肢体神经组织、冰冻神经组织样品,进行病理及补体C3b/c、C4c和固有免疫抗体IgG和IgM抗体的免疫荧光强度的检测,同时观测猪肢体跟腱反射。结果:实验组猪的神经反射正常,而对照组猪未引出神经反射,再灌注组神经反射很弱。病理结果显示实验组神经组织有轻微的水肿,免疫荧光染色补体C3b/c、C4c和固有免疫抗体IgG和IgM抗体免疫荧光强度增强,而对照组神经组织轻微水肿,免疫荧光染色补体C3b/c、C4c和固有免疫抗体IgG和IgM抗体免疫荧光强度没有改变,再灌注组神经损伤明显,可见水肿和无髓鞘现象。结论:体外循环对肢体神经组织可能有保护作用。尽管体外循环也激活固有免疫,但对神经组织仍有保护作用。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2008年第8期819-821,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 国家留学基金博士后项目基金资助(2004911035)
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