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遗传性轴突神经病变中的遗传多样性:分析53名巴西儿童

Fernanda Barbosa Figueiredo¹, Pedro José Tomaselli¹, Jaime Hallak^1,2

¹Neuroscience and Behavior Sciences Department, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil.

Journal of the peripheral nervous system : JPNS

|February 20, 2024

概括

遗传测试在68%的巴西儿童中确定了轴突神经病变的原因. MFN2和GJB1基因是常见的,但在这个儿科神经病症队列中观察到显著的遗传异质性.

科学领域:

遗传学遗传学是一个
神经学神经学
儿科儿科儿科

背景情况:

儿童遗传神经病变的遗传流行病学在很大程度上是未知的.
轴突神经病变在儿科神经学中是一个重大问题.
了解遗传原因对于治疗优先事项至关重要.

研究的目的:

为了研究巴西儿科患者与轴突神经病变的遗传特征.
识别与儿童轴突神经病变相关的常见和新型遗传变异.
为未来的诊断,咨询和干预策略提供信息.

主要方法:

包括53名被诊断患有轴突遗传神经病变的儿科患者.
用于分子评估的目标基因组或整个外体序列测序.
使用分离分析和桑格测序来确认变种.

主要成果:

在68%的队列中 (36/53名患者) 实现了分子诊断.
在50%的基因确诊病例中发现了MFN2和GJB1变异.
观察到显著的遗传异质性,在各种其他基因中存在变异.

结论:

巴西患有轴突神经病变的儿童表现出相当大的遗传异质性.
这种异质性很可能反映了巴西人口的多民族背景.
诊断和治疗方法应该考虑到这种遗传多样性.

关键词:

一个轴突的Charcot-Marie-Tooth-牙.遗传性神经病变是一种遗传性神经病变.分子诊断分子诊断分子诊断这是下一代测序.儿科患者的儿童患者.

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