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外体序列测序改善了先天性或面部裂的遗传诊断
Shujuan Yan1, Fang Fu1, Ru Li1
1Prenatal Diagnostic Center, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
外体测序 (ES) 显著改善了先天性口腔裂 (OFC) 的诊断,在11.2%的胎儿中确定了遗传原因. 这种基因测试增强了产前诊断,并扩大了对OFC相关基因的知识.
科学领域:
- 医学遗传学 医学遗传学
- 产前诊断 在产前诊断
- 遗传异常 是一种先天性异常.
背景情况:
- 耳脸裂 (OFC) 是一种常见的先天性异常,具有复杂的遗传病因.
- 准确的基因诊断对于产前咨询和管理至关重要.
研究的目的:
- 评估外基因组测序 (ES) 的诊断实用性,以确定胎儿口腔裂 (OFC) 的遗传原因.
- 探索先天性OFCs的遗传景观,包括孤立和综合征病例.
主要方法:
- 追溯分析107个单独怀孕的胎儿OFCs.
- 排除已知染色体异常的病例 (型,CMA).
- 在胎儿和父母身上进行全外体测序 (WES),随后进行变异分析和结果评估.
主要成果:
- 在11.2%的胎儿中发现了临床上显著的变异,在孤立和综合性OFC中发现率相似.
- 十二个胎儿在11个基因中有显著变异,CHD7是最常见的.
- 确定了七种新的致病变体,扩大了已知的OFCs遗传谱.
结论:
- 外体序列测序显著增加了先天性OFCs分子诊断的诊断产量.
- 产前遗传学增强了产前诊断能力,并为受影响的家庭提供了宝贵的遗传信息.
- 这项研究扩大了对OFC和相关基因疾病谱的遗传基础的理解.
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