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在中等风险人群中对主导单基因疾病进行非侵入性产前检测的应用:一项前性队列研究

Qun Lu¹, Chao Chen^2,3, Ying Lin¹

¹Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, Jiangsu, China.

Prenatal diagnosis

|February 17, 2026

概括

针对单基因疾病的非侵入性产前检测 (NIPT-SGD) 有效地选中等风险妊娠中的主导疾病. 这项研究证实了NIPT-SGD.

科学领域:

遗传学是一个遗传学.
产前诊断在产前诊断
分子生物学分子生物学

背景情况:

单基因疾病 (SGD) 在怀孕期间具有重大风险.
目前在中等风险人群中对SGD的查方法存在局限性.
非侵入性产前检测 (NIPT) 已经显示出各种遗传分析的前景.

研究的目的:

评估NIPT对单基因疾病 (NIPT-SGD) 的可行性和效率.
评估NIPT-SGD在中国中性SGD风险中等的孕妇队列中的表现.

主要方法:

一项前性队列研究,涉及2000名有SGD中等风险的孕妇.
NIPT-SGD使用无细胞DNA (cfDNA) 面板,针对202种主导性SGD的155个基因.
基因确认是通过羊膜样本检测和新生儿血斑的桑格测序或外体测序进行的,随后是婴儿临床随访.

主要成果:

在1997年的怀孕中分析了NIPT-SGD,确定了10个阳性病例和1987个阴性病例.
诊断验证证实了7个真实阳性和988个真实阴性,具有100%的灵敏度和99.8%的特异性.
阳性预测值为77.8%,阴性预测值为100%; 7个真阳性病例中的4个显示出临床相关性.

结论:

在中等风险怀孕中,NIPT-SGD是一种可靠和有效的方法来检测胎儿主导性SGD.
临床实施需要仔细考虑,因为在未受影响的胎儿中可能存在变异的模糊性.

关键词:

cfDNA DNA 的时间.主导的单基因疾病.中等风险人群中介风险人群非侵入性的产前检测.预期的队列研究.

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