低成本高通量基因型鉴定用于诊断家族性高胆固醇血清症
Shirin Ibrahim1, Jeroen van Rooij2, Annemieke J M H Verkerk2
1Department of Vascular Medicine (S.I., J.P., W.A.M.S., G.K.H., E.S.G.S., L.F.R.), Amsterdam UMC, University of Amsterdam, the Netherlands.
Circulation. Genomic and precision medicine
|September 7, 2023
概括
一个新的低成本的基因造型阵列为诊断家族性高胆固醇血症 (FH) 提供了一种有前途的方法. 这种高通量工具准确地识别了导致FH的变异,可能会增加对这种常见疾病的基因测试的访问.
科学领域:
- 遗传学 是一个遗传学.
- 心血管疾病 心血管疾病
- 分子诊断学 分子诊断
背景情况:
- 家族性高胆固醇血症 (FH) 是一种普遍存在的遗传疾病,导致高的LDL胆固醇和早期心血管疾病.
- 目前用于FH的遗传诊断方法往往是昂贵和耗时的.
- 由于FH的诊断不足,这仍然是一个重大的公共卫生问题.
研究的目的:
- 评估一种新型,低成本,高通量基因型测定阵列的诊断准确性,用于家族性高胆固醇血症 (FH).
- 评估该阵列在改善可访问性和降低与FH遗传检测相关的成本方面的潜力.
主要方法:
- 一个Illumina全球选阵列的定制,用于探测已知的636种引起FH的变种.
- 通过下一代测序诊断的1772名FH变种携带者的理论覆盖率评估.
- 来自荷兰级联查计划的1268个FH变种载体中的阵列性能验证.
主要成果:
- 该阵列在FH引起变异的理论覆盖率为91.3%.
- 验证中的总体灵敏度达到94.7%,在阵列设计中包含的变体中增加到98.2%.
- 副本数变异分析显示89.4%的灵敏度,新发现变异的错误阳性率为1.3%.
结论:
- 该FH基因型测定阵列提供了一个具有成本效益和准确的工具,用于家族高胆固醇血症的遗传诊断.
- 这项技术有可能显著提高FH遗传检测的可访问性.
- 正在进行的阵列定制预计将进一步完善其诊断性能.
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