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在临床环境中,通过对外体和基因组测序进行1000次三元分析的诊断产量

Helena Malmgren^1,2, Malin Kvarnung^1,2, Peter Gustafsson^1,2

¹Department of Clinical Genetics and Genomics, Karolinska University Hospital, Stockholm, Sweden.

Frontiers in genetics

|July 7, 2025

概括

三位分析,测序患者和父母的DNA,诊断出39%的1000个人有遗传性疾病. 这种方法有效地识别了新的变异,并改善了诊断产量,即使是在之前测试的患者中.

科学领域:

遗传学是一个遗传学.
基因组医学是基因组医学.
生物信息学是一种生物信息学.

背景情况:

三重分析涉及对患者及其父母的DNA进行测序,以确定疾病的遗传原因.
在过去的十年中,有1000名患者使用这种策略进行了外体或基因组测序.

研究的目的:

评估三元分析在识别致病性遗传变异方面的诊断产量和有效性.
评估三组分析在各种患者队列中的实用性,包括那些患有神经发育障碍和血缘关系的人.

主要方法:

整个外体或基因组测序在1000名患者-家长三组中进行.
基因变异被分析以确定致病突变,包括新变异和复合异构性.

主要成果:

实现了39%的诊断产量,在308个基因中确定了致病变体.
自体主导的de novo变异在46%的已解决病例中被发现.
三位分析在30%的患者中发现了致病变体,这些患者之前被分析为单独患者.

结论:

三元分析显著提高了诊断产量,因为它可以快速识别de novo变异,并确认化合物异构性.
这种策略对于综合征性神经发育障碍和血缘亲属家庭特别有效.
基于基因组测序的三组分析提供了一种全面的方法来检测各种遗传异常,改善诊断结果.

关键词:

NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD NDD 在新的 de novo.异构体是什么?异构体是什么?异构体是什么?基因组基因组是基因组的组成部分.综合征综合征是指一个综合征.三元分析三元分析

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