[儿童骨髓衰竭下一代测序:准确诊断的宝贵工具]
Rafael Adrián Pacheco-Orozco1, Angela Devia1, Eliana Manzi1
1Fundación Valle del Lili, Cali, Colombia.
Andes pediatrica : revista Chilena de pediatria
|January 6, 2025
概括
下一代测序 (NGS) 在27.8%的儿科患者中诊断出骨髓衰竭的原因. 这种基因测试确定了特定的遗传性骨髓衰竭综合征,有助于诊断和管理.
科学领域:
- 儿科血液学 儿科血液学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 遗传性骨髓衰竭综合征占儿科无形成性贫血病例的很大一部分.
- 下一代测序 (NGS) 的进步改善了骨髓衰竭遗传原因的识别.
研究的目的:
- 评估NGS的诊断效用和临床一致性,用于诊断儿童骨髓衰竭.
- 在儿科队列中使用NGS评估基因诊断的产量.
主要方法:
- 对被诊断患有骨髓衰竭综合征的18名儿科患者 (0-17岁) 的回顾性分析.
- 基因组DNA分析使用NGS与向基因小组以及随后的桑格尔测序来确认变异.
主要成果:
- 在18名患者中,NGS在5名患者 (27.8%) 中实现了基因诊断.
- 诊断包括Fanconi贫血 (2),先天性失血症 (2) 和TP53相关的骨髓衰竭 (1).
- 临床一致性为100%,发现了两种新的致病变体.
结论:
- NGS在确定儿科患者骨髓衰竭的病因方面是有效的,诊断收益率约为三分之一.
- 在具有明确的临床诊断和综合征特征的患者中,诊断产量更高.
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