在最初报告5年后重新评估和重新分析152项研究成果,发现18项临床相关变化
Tobias Bartolomaeus1, Julia Hentschel1, Rami Abou Jamra2
1Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, 04103, Germany.
European journal of human genetics : EJHG
|July 17, 2023
概括
重新分析古老的罕见病数据发现了新的遗传原因,并纠正了以前的发现. 这凸显了重新评估下一代测序 (NGS) 结果的价值,即使在已解决的情况下.
科学领域:
- 基因组学就是基因组学.
- 罕见疾病 罕见疾病
- 生物信息学是一种生物信息学.
背景情况:
- 对罕见疾病队列发表的下一代测序 (NGS) 数据的代再分析尚未得到充分研究.
- 之前的研究可能包含了需要重新评估的变体,需要更新管道和指南.
研究的目的:
- 从先前发表的152个患有罕见发育障碍的家庭队列中重新评估变异.
- 评估更新的生物信息管道和基因疾病关联 (GDA) 评分系统对再分析的有用性.
- 为了识别新的致病变异,并重新分类以前报告的变异.
主要方法:
- 用更新的生物信息学管道对152个血缘家族的现有NGS数据进行了重新分析.
- 根据当前的诊断分类指南和候选基因评分系统 (AutoCaSc) 重新评估报告的变异.
- 对基因疾病关联 (GDA) 的有效性进行系统评分.
主要成果:
- 在28/152个 (18%) 家庭中发现了临床相关的变化.
- 之前报告的10种致病变体被重新分类为具有不确定的意义 (VUS) 或良性的变体.
- 确定了12种新的致病变体,并且由于管道问题而错过了之前报告的两种变体.
结论:
- 重新分析已公布的NGS数据对于罕见疾病至关重要,揭示新的诊断变异和纠正以前的解释.
- 更新的管道和基因疾病关联的重新评估对于最大限度地提高诊断产量至关重要.
- 建议采用具有成本效益的查方法进行重新分析,以有效地识别大多数新变异.
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