查尔科-玛丽-牙病4J型的临床特征
Reza Sadjadi1, Vincent Picher-Martel1, Jasper M Morrow1
1From the Department of Neurology (R.S., V.P.-M.), Massachusetts General Hospital, Harvard Medical School, Boston; Centre for Neuromuscular Diseases (J.M.M., M.M.R.), Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, United Kingdom; Department of Neurology (D.T.), and Department of Radiology (P.A.D.), University of Iowa Health Care, Carver College of Medicine, Iowa City; Michigan Neuroscience Institute (B.A.M.), University of Michigan, Ann Arbor; Unit of Medical Genetics and Neurogenetics (D.P.), Department of Diagnostics and Technology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy; Department of Neurology (D.N.H.), University of Rochester, NY; Department of Neurology (J.L.), Houston Methodist Research Institute; Neurology & Neuromuscular Care Center/Neurology Rare Disease Center (D.C.), Denton, TX; and Department of Molecular Physiology and Biophysics (M.E.S.), University of Iowa Health Care, Carver College of Medicine, Iowa City.
这项研究在19名患者中描述了Charcot-Marie-Tooth4J型疾病 (CMT4J),发现运动延迟,软弱和认知/呼吸问题是常见的. 神经纤维光链水平与儿科患者的疾病严重程度相关,支持其在试验中的使用.
科学领域:
- 神经学 神经学
- 遗传学 遗传学 是一个
- 罕见疾病 罕见疾病
背景情况:
- 查洛-玛丽-病4J型 (CMT4J) 是一种由*因子诱导基因4* (*FIG4*) 基因的变异引起的自体逆向遗传疾病.
- 临床前研究表明,腺相关病毒血清型9-FIG4基因治疗是CMT4J的潜在治疗方法.
研究的目的:
- 进一步描述CMT4J在儿童和成人群体中的临床表型.
- 评估验证的结果测量的可行性,用于CMT4J的未来临床试验.
- 评估探索性生物标志物的实用性,包括肌肉MRI脂肪分数和神经纤维光链水平.
主要方法:
- 一项横截面研究通过遗传神经病症联盟招募了19名经遗传确认的CMT4J患者 (14名儿科,5名成人).
- 使用标准化CMT特异性结果测量 (例如CMTPedS,PedsQL,Vineland) 和生物标志物 (肌肉MRI脂肪分数,电生理学,神经纤维光链) 评估疾病严重程度.
- 进行了描述性统计和相关性分析,以探索临床变量和生物标志物之间的关系.
主要成果:
- 最常见的症状包括总运动延迟和远部肌肉衰弱 (14/19名患者),以及认知和呼吸缺陷 (8/19名患者).
- 在2名患者中发现了不对称的弱点,在6名患者中发现了神经传导速度的不均减缓.
- 在儿科患者中,神经纤维光链水平和Charcot-Marie-Tooth疾病儿科量表 (CMTPedS) 之间观察到显著的正相关性.
结论:
- 这项研究为多样化的CMT4J队列提供了关键的基线临床和生物标志物数据,突出了运动,认知和呼吸系统症状.
- 证明了使用CMTPedS等临床结果来评估儿科CMT4J严重性的可行性.
- 神经纤维光链水平显示为与儿科CMT4J疾病严重程度相关的生物标志物有前途,需要进一步调查.
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