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1980例高龄孕妇产前行BoBs技术检测的临床分析 被引量:17

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摘要 随着我国"二孩"政策的调整,高龄(≥35岁)孕妇的数量迅速增加。据文献报道,高龄孕妇胎儿的染色体异常率为4.33%,且随孕妇年龄增加而显著升高。高龄妊娠造成胎儿遗传缺陷的原因为,随着年龄增加孕妇卵母细胞的老化,有害环境因素等的影响易造成生殖细胞在分裂时,染色体不分离或发生畸变。
出处 《中华妇产科杂志》 CAS CSCD 北大核心 2018年第2期111-114,共4页 Chinese Journal of Obstetrics and Gynecology
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