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Avian bornaviruses in psittacine birds from Europe and Australia with proventricular dilatation disease

机译:来自欧洲和澳大利亚的鹦鹉嘴类鸟类的鸟类博纳塔病毒,患有前庭扩张性疾病

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摘要

To determine whether avian bornaviruses (ABVs) were a factor in proventricular dilatation disease (PDD), we used immunohistochemistry, reverse transcription - PCR, and nucleotide sequence analysis to examine paraffin wax - embedded or frozen tissue samples of 31 psittacine birds with this disease. PDD is a fatal disease of psittacine birds associated with nonsuppurative encephalitis and ganglioneuritis of the upper intestinal tract. Tissue samples had been collected from 1999 through 2008 in Austria, Switzerland, Hungary, and Australia. Immunohistochemical demonstration of viral antigen within the brain and vegetative nerve system of the gastrointestinal tract provides strong evidence for a causative role of ABVs in this condition. Partial sequences of nucleoprotein (p40) and matrix protein (gp18) genes showed that virus in most of our cases belonged to the ABV-2 and ABV-4 groups among the 5 genogroups described so far. Viral sequences of 2 birds did not match any of the described sequences and clustered together in a new branch termed ABV-6.
机译:为了确定禽痘病毒(ABVs)是否是引起前列腺扩张疾病(PDD)的因素,我们使用了免疫组织化学,逆转录-PCR和核苷酸序列分析来检查31例患有这种疾病的鹦鹉鸟的石蜡包埋或冷冻组织样本。 PDD是与非化脓性脑炎和上肠道神经节神经炎相关的鹦鹉鸟的致命疾病。从1999年至2008年在奥地利,瑞士,匈牙利和澳大利亚收集了组织样本。胃肠道的大脑和营养神经系统内病毒抗原的免疫组织化学显示为这种情况下ABV的致病作用提供了有力证据。核蛋白(p40)和基质蛋白(gp18)基因的部分序列显示,到目前为止,在我们大多数情况下,病毒都属于上述5个基因组中的ABV-2和ABV-4组。 2只鸟的病毒序列与任何上述序列均不匹配,并聚集在一个称为ABV-6的新分支中。

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