17名患有门克斯病的中国患者的表型和突变谱
Fang Xu1, Hongyan Huang1, Qiuyan Shen1
1Department of Neurology, West China Hospital, Sichuan University, Chengdu, China.
概括
门克斯病 (MD) 是一种由ATP7A突变引起的严重X相关疾病. 这项研究扩展了已知的MD表型和基因型,识别了新的突变,并突出了以前未报告的症状,如听力损失.
科学领域:
- 遗传学和分子生物学
- 儿科神经学 儿科神经学
- 罕见疾病 罕见疾病
背景情况:
- 门克斯病 (MD) 是一种致命的X关联衰退性疾病,由ATP7A基因突变引起.
- 严重的MD通常会导致三岁前死亡,而较轻的形式和尾角综合征呈现的表型不那么严重,存活时间更长.
研究的目的:
- 为了验证以前关于门克斯病的发现.
- 扩大对与MD相关的临床表型的理解.
- 在被诊断为MD的患者中识别新的ATP7A突变.
主要方法:
- 观察数据收集与患者随访.
- 17名中国患有门克斯病的患者的基因诊断.
- 对临床症状,结缔组织异常和分子遗传数据的分析.
主要成果:
- 所有17名患者都表现出神经症状,包括延迟运动里程碑 (100%) 和发作 (58.8%).
- 常见的结缔组织问题包括异常的头发 (76.5%) 和骨/牙异常 (52.9%). 感觉神经听力损失是最近报告的一项发现 (17.6%).
- 确定了16种ATP7A突变,其中14种是新发现的. 生存时间高达48个月,幸存者观察到显著的运动延迟和耐火性.
结论:
- 这项研究扩大了Menkes病已知的表型和基因型谱.
- 发现了新的ATP7A突变和以前未报告的临床特征,如神经传感器听力损失.
- 这些发现有助于更全面地了解MD的遗传和临床变异性.
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