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在整个生命周期中与LAMA2相关的肌肉缩:一个横截面研究

Karlijn Bouman¹, Jan T Groothuis¹, Jonne Doorduin¹

¹From the Department of Neurology (K.B., J.D., N.A., B.G.M.E., N.C.V.), Donders Institute for Brain, Cognition and Behaviour; Department of Pediatric Neurology (K.B., C.E.E.), Donders Institute for Brain, Cognition and Behaviour, Amalia Children's Hospital; Department of Rehabilitation (J.T.G.), Donders Institute for Brain, Cognition and Behaviour; Department of Pediatric Cardiology (F.E.A.U.C.), Amalia Children's Hospital; Department of Cardiology (F.M.A.H., R.N.); Department of Human Genetics (E.-J.K.); Department of Pediatrics (A.T.M.D., J.M.T.D.), Radboud Institute for Health Sciences, Amalia Children's Hospital; and Department of Internal Medicine (M.C.H.J.), Radboud University Medical Center, Nijmegen, The Netherlands.

Neurology. Genetics

|July 21, 2023

概括

与LAMA2相关的肌肉发育不良 (LAMA2-MD) 是一种罕见的神经肌肉疾病. 这项研究描述了LAMA2-MD患者的特征,建议MFM-20/32,加速计和超声波用于疾病评估.

科学领域:

神经肌肉疾病神经肌肉疾病
罕见疾病是一种罕见的疾病.
遗传性疾病遗传性疾病

背景情况:

与LAMA2相关的肌肉发育不良 (LAMA2-MD) 是一种罕见的神经肌肉疾病,其特点是肌肉疲弱,脊椎病和呼吸系统受损.
目前还没有治愈疗法,这凸显了对临床试验的自然史数据和结果指标的需求.
深度表型是改善临床护理和试验准备的关键.

研究的目的:

为了对LAMA2-MD患者进行深入的临床表型.
建立一个基线队列,用于未来的随访和临床试验招聘.
确定和验证评估疾病严重程度和进展的结果措施.

主要方法:

一个横截面的,单中心的观测研究.
包括27名经过基因确认的LAMA2-MD患者.
使用神经学检查,运动功能测量20/32 (MFM-20/32),加速度计,肌肉超声波,呼吸,心脏和骨密度评估.

主要成果:

轴心和近端肌肉衰弱最为明显,平均MFM-20/32得分为42.0%.
肌肉超声波显示,回声效应增加,85%的患者呼吸功能受损.
心脏异常和骨质降低是普遍存在的,需要进行例行随访.

结论:

拉马2-MD表现出一种可变的表型,需要定制管理.
建议定期进行心肺呼吸系统随访和优化骨质量.
建议对MFM-20/32,加速计和肌肉超声波进行疾病评估,等待自然史数据.

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