针对儿科遗传性血清性贫血的下一代定向测序的诊断产量
Yu Jeong Choi1, Hongkyung Kim2, Won Kee Ahn3
1Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
BMC medical genomics
|September 11, 2023
概括
下一代测序 (NGS) 显著有助于诊断遗传性血清性贫血 (HHA). 这种基因测试在62%的患者中确定了致病变体,证实了它在HHA诊断中的关键作用.
科学领域:
- 血液学 血液学 血液学
- 遗传学 是一个遗传学.
- 分子诊断学 分子诊断
背景情况:
- 遗传性血液溶解性贫血 (HHA) 包含导致红细胞破坏的遗传性疾病.
- 原因包括膜病变,酶病变和血红蛋白病变.
- 下一代测序 (NGS) 已经改善了HHA诊断.
研究的目的:
- 为了评估NGS对遗传性贫血的诊断效果.
- 在怀疑HHA的患者中识别遗传变异.
主要方法:
- 对29名怀疑患有遗传性贫血的患者遗传数据的回顾性审查.
- 针对性NGS对497个与血液学疾病相关的基因进行.
- 基因组DNA提取,库准备和使用NextSeq 550Dx进行测序.
主要成果:
- 在ANK1,SPTB,G6PD,SPTA1,HBA1/HBA2,PLKR和ALAS2.2中,NGS发现了致病或可能致病的变体.
- 在29名患者中,有18名患者 (62.07%) 通过NGS获得了确定的诊断.
- 在与HHA相关的多个基因中发现了特定的变异和缺失.
结论:
- 在很大一部分HHA患者中,NGS对于确定确诊至关重要.
- 将NGS纳入诊断工作流程对于管理HHA至关重要.
- NGS有助于识别遗传性溶血性贫血的各种遗传原因.
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