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首页> 外文期刊>Revue de Medecine Veterinaire >Pathological changes in mesenteric lymph nodes infected with L. serrata nymphs in Iranian sheep.
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Pathological changes in mesenteric lymph nodes infected with L. serrata nymphs in Iranian sheep.

机译：感染L的肠系膜淋巴结的病理变化。伊朗绵羊的锯齿状若虫。

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摘要

The aims of the present study were to evaluate the frequency of L. serrata infection in Iranian sheep by evidencing nymphs in the mesenteric lymph nodes (MLNs) and to characterize the induced lesions. Among 136 carcasses of slaughtered sheep directly inspected, 30.9% of carcasses exhibited L. serrata larvae and mainly nymphs in the MLNs. After fixation in 10% formalin and embedding in paraffin, the infected MLNs were analyzed using conventional histology. Inflammatory lesions (oedema, necrotic areas, mononuclear cell infiltrates coupled to vascularitis) associated to cystic cavities were predominantly observed. Granulomatosis with giant cells and macrophages was also found. These results illustrate the traumatic and irritating actions of the L. serrata larvae and nymphs on the MLNs due to the larva migration in the intermediate host and show that the L. serrata infection is relatively frequent in Iranian sheep.
机译：本研究的目的是评估L的频率。通过证明肠系膜淋巴结（MLN）中的若虫并鉴定诱发的损伤来对伊朗绵羊进行锯齿状感染。在直接检查的136头屠宰绵羊尸体中，有30.9％的尸体表现出L。 MLN中的锯齿幼虫和主要是若虫。固定在10％福尔马林中并包埋在石蜡中后，使用常规组织学方法分析感染的MLN。主要观察到与囊性腔相关的炎性病变（水肿，坏死区，单核细胞浸润和血管炎）。还发现了巨细胞和巨噬细胞肉芽肿病。这些结果说明了L的刺激性和刺激性。由于幼虫在中间寄主中的迁移，MLNs上的锯齿状幼虫和若虫也显示出 L。伊朗绵羊的锯齿状感染比较常见。

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