首页> 外文期刊>Neuropathology: official journal of the Japanese Society of Neuropathology >Abnormal tau deposition in neurons, but not in glial cells in the cerebral tissue surrounding arteriovenous malformation
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Abnormal tau deposition in neurons, but not in glial cells in the cerebral tissue surrounding arteriovenous malformation

机译:tau沉积在神经元中异常,但在动静脉畸形周围的脑组织中的胶质细胞中却没有

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We report an autopsy case of arteriovenous malformation (AVM) of the right frontal lobe in a 50-year-old man, in whom post mortem examination revealed massive tau deposition in the affected cerebral cortex. The patient was diagnosed as having AVM at the age of 21 years, and died of unknown cause at the age of 50 years. Immunostaining with anti-phosphorylated tau antibody (AT8) revealed many NFTs and neuropil threads, but not glial tau accumulation, in the right frontal cortex surrounding the AVM. The NFTs and neuropil threads contained both 3-repeat and 4-repeat tau. Ultrastructurally, the NFTs consisted of paired helical filaments. In the other brain areas, a few NFTs were found in the parahippocampal gyrus. There was no amyloid deposition in the brain. A variety of disease conditions, including brain tumor, viral encephalitis, angioma and cervical spondylotic myelopathy, have been reported to show Alzheimer-type NFTs. The present findings indicate that abnormal tau deposition can occur in neurons, but not in glial cells, of the affected cerebral cortex surrounding AVM.
机译:我们报告了一名50岁男子的右额叶动静脉畸形(AVM)尸检病例,在验尸检查中发现受影响的大脑皮层中有大量的tau沉积物。该患者在21岁时被诊断患有AVM,并在50岁时死于不明原因。抗磷酸化tau抗体(AT8)的免疫染色显示,在AVM周围的右额叶皮层中有许多NFT和神经纤维丝,但没有胶质tau积累。 NFT和Neuropil线程包含3重复和4重复tau。在超微结构上,NFT由成对的螺旋丝组成。在其他脑区,在海马旁回中发现了一些NFT。脑中没有淀粉样蛋白沉积。据报道,包括脑肿瘤,病毒性脑炎,血管瘤和颈椎病性脊髓病在内的多种疾病均显示出阿尔茨海默病型NFT。目前的发现表明,tau沉积异常可能发生在AVM周围受影响的大脑皮层的神经元中,而不是在神经胶质细胞中。

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