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Lancet Neurol:脊髓小脑性共济失调1,2,3和6型长期的疾病进展

2015-09-14 崔倩 译 MedSci原创

脊髓小脑性共济失调是显性遗传神经退化性疾病。由于正在开发针对这些疾病的潜在治疗方法,需要对它们的自然历史的精确了解。该研究的目的是研究最常见的脊髓小脑性共济失调的长期疾病进展:SCA1,SCA2,SCA3,和SCA6。此外,该研究旨在建立非共济失调症状的顺序和发生,并找出病情恶化的预测。在这个纵向队列研究(EUROSCA)中,研究人员招收了SCA1,SCA2,SCA3,或SCA6基因检测为阳性或疾

脊髓小脑性共济失调是显性遗传神经退化性疾病。由于正在开发针对这些疾病的潜在治疗方法,需要对它们的自然历史的精确了解。该研究的目的是研究最常见的脊髓小脑性共济失调的长期疾病进展:SCA1,SCA2,SCA3,和SCA6。此外,该研究旨在建立非共济失调症状的顺序和发生,并找出病情恶化的预测。

在这个纵向队列研究(EUROSCA)中,研究人员招收了SCA1,SCA2,SCA3,或SCA6基因检测为阳性或疾病发展的男性和女性患者,这些患者均为无法解释的共济失调患者,年龄均在18岁以上,来自十个欧洲国家的17个共济失调转诊中心。研究人员每年探视患者(在不规则的时间间隔,为期3年)。主要成果是评估共济失调评级(SARA),以及非共济失调症状(INAS)。研究人员使用线性混合模型来分析进展。研究人员采用混合模型的模式说明丢失的信息。

在2005年7月1日和2006年8月31日之间,526例SCA1,SCA2,SCA3,SCA6患者被招募到此研究中。研究人员分析了数据的462例至少有一次随访的患者。平均观察时间为49个月(IQR 35-72)。SARA进展数据符合所有基因型的线性模型。在年度SARA得分方面,SCA1型患者增加了2.11(SE 0.12),SCA2患者增加了1.49(0.07),SCA3患者增加了1.56(0.08),SCA6患者增加了0.80(0.09)。SCA1,SCA2,SCA3患者的非共济失调标志数目的增加,达到了平台期。在SCA6患者中,非共济失调的症状的数量呈线性增长,但比SCA1,SCA2,SCA3患者相比较慢(P<0.000)。与SARA得分快速发展有关联的因素有,在SCA1患者中随访时间较短(P=0.0179),每增加一年增长的年龄(0.04 SE 0.02];P=0.0476),以及每个额外的重复单元较长时间的重复扩张(0.06[SE 0.02];p=0.0128),在SCA2患者中,这些因素有随访时间短(P<0.000),每增加一年较低的发病年龄(-0.02[SE 0.01];p=0.0014),以及每增加SARA点较低的基线SARA评分(-0.02[SE 0.01];p=0.0083),在SCA6患者中,这些因素是每增加SARA点较低的基线SARA评分(-0.03[SE 0.01];p=0.0195)。在SCA3患者中,研究人员没有发现受SARA分数进展影响的因素。

该研究提供了一个基于超过那些以往的研究随访时间,对最常见的脊髓小脑性共济失调的进展数据进行了定量。这些数据可以证明样本量的计算和患者分层干预试验是有用的。

原始出处:

Heike Jacobi,Sophie Tezenas du Montcel, Peter Bauer,et al.Long-term disease progression in spinocerebellar ataxia types 1, 2, 3, and 6, Lancet Neurology,2015.9.13

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    2016-04-30 yinhl1978
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    2016-07-28 howi
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