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孕妇血浆中游离胎儿DNA的生物学特点及临床应用

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摘要 已证实胎儿细胞存在于孕妇外周血中 ,但由于其数量较少 ,而且存在个体差异 ,所以很难将其应用于临床形成成熟的非创伤性产前诊断检测方法。 1997年 ,Lo[1] 首次报道在母体血循环中发现了游离胎儿DNA ,证实了母体血浆中的DNA是胎儿和母体DNA的嵌和物。随后又有一些学者相继证实了母体血循环中游离胎儿DNA的存在。近两年来 ,随着分子生物学等技术的完善 ,使得从母血循环中检测胎儿DNA并应用于临床成为可能 ,并为形成一种易于为广大患者接受。
作者 赵茵
出处 《国外医学(妇幼保健分册)》 2002年第4期150-152,共3页 Foreign Medical Sciences (Section of Maternal and Child Health)
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