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CNV-seq在侧脑室增宽胎儿产前诊断中的应用价值 被引量:5

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摘要 目的探讨低深度全基因组高通量测序技术(low-coverage massicely parallel copy number variation sequencing,CNV-seq)在产前超声提示侧脑室增宽胎儿产前诊断中的应用价值。方法回顾性分析186例侧脑室增宽胎儿的产前CNV-seq结果。根据侧脑室增宽是否伴随其他超声异常,分为孤立性123例和非孤立性63例。结果CNV-seq共检出染色体异常21例(11.29%,21/186),包括数目异常3例(2例21-三体和1例克氏综合征)和结构异常18例,结构异常中包含9例致病性CNVs,其中4例来源于孤立性侧脑室增宽胎儿(4/123,3.3%),5例来源于非孤立性侧脑室增宽胎儿(5/63,7.9%)。孤立性侧脑室增宽胎儿中检出染色体异常13例(13/123,10.6%),非孤立性中检出8例(8/63,12.7%)。结论CNV-seq在侧脑室增宽胎儿的染色体异常检出率较高,尤其在非孤立性侧脑室增宽病例中检测出CNVs及其存在致病性的概率更高。
出处 《中华医学遗传学杂志》 CAS CSCD 2021年第3期293-295,共3页 Chinese Journal of Medical Genetics
基金 国家重点研发计划(2018YFC1002206-2)。
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