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首页> 外文期刊>Journal of neurology >Frequency of ubiquitin and FUS-positive, TDP-43-negative frontotemporal lobar degeneration.
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Frequency of ubiquitin and FUS-positive, TDP-43-negative frontotemporal lobar degeneration.

机译:泛素和FUS阳性,TDP-43阴性的额颞叶变性的频率。

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摘要

Frontotemporal lobar degeneration (FTLD) is a clinically, genetically and pathologically heterogeneous disorder. Within FTLD with ubiquitin-positive inclusions (FTLD-U), a new pathological subtype named FTLD-FUS was recently found with fused in sarcoma (FUS) positive, TDP-43-negative inclusions, and striking atrophy of the caudate nucleus. The aim of this study was to determine the frequency of FTLD-FUS in our pathological FTLD series, and to describe the clinical, neuroimaging and neuropathological features of FTLD-FUS, especially caudate atrophy. Demographic and clinical data collected prospectively from 387 patients with frontotemporal dementia (FTD) yielded 74 brain specimens. Immunostaining was carried out using a panel of antibodies, including AT-8, ubiquitin, p62, FUS, and TDP-43. Cortical and caudate atrophy on MRI (n = 136) was rated as normal, mild-moderate or severe. Of the 37 FTLD-U cases, 33 were reclassified as FTLD-TDP and four (0.11, 95%: 0.00-0.21) as FTLD-FUS, with ubiquitin and FUS-positive, p62 and TDP-43-negative neuronal intranuclear inclusions (NII). All four FTLD-FUS cases had a negative family history, behavioural variant FTD (bvFTD), and three had an age at onset
机译:额颞叶变性(FTLD)是一种临床,遗传和病理学上的异质性疾病。在具有泛素阳性包涵体(FTLD-U)的FTLD中,最近发现了一种新的病理亚型,名为FTLD-FUS,融合在肉瘤(FUS)阳性,TDP-43阴性包涵体中,并且尾状核显着萎缩。这项研究的目的是确定我们的病理性FTLD系列中FTLD-FUS的频率,并描述FTLD-FUS的临床,神经影像学和神经病理学特征,尤其是尾状萎缩。从387例额颞叶性痴呆(FTD)患者中前瞻性收集的人口统计学和临床​​数据产生了74个脑标本。使用包括AT-8,泛素,p62,FUS和TDP-43在内的一组抗体进行免疫染色。 MRI上的皮质和尾状萎缩(n = 136)被评为正常,轻度-中度或严重。在37例FTLD-U病例中,有33例被重新分类为FTLD-TDP,4例(0.11,95%:0.00-0.21)被分类为FTLD-FUS,泛素和FUS阳性,p62和TDP-43阴性的神经元核内包涵体( NII)。所有4例FTLD-FUS病例均具有阴性家族史,行为变异性FTD(bvFTD),其中3例发病年龄小于或等于40岁。 MRI显示全部轻度至中度或重度尾状萎缩,从发病到MRI的平均持续时间为63个月(范围16-119个月)。在我们的全部临床FTD队列中,我们发现11例bvFTD,阴性家族史和发病年龄小于或等于40岁的患者(0.03; 95%CI:0.01-0.05)。 136例MRI中有10例存在尾状萎缩,包括所有4例FUS病例。新近确定的FTLD-FUS的频率在FTLD-U中为11%,在我们的临床FTD队列中估计为3%。可以通过发病年龄小于或等于40岁,阴性家族史,bvFTD和MRI上的尾状萎缩来合理地确定这种病理亚型的存在。

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