孕妇血浆和血清中是否含有胎儿DNA?作者对此进行了研究,并首次发现在母体血浆、血清和有核细胞中存在胎儿DNA。 43名怀孕12～40周的孕妇,其中30名怀男胎,13名怀女胎。10名未孕妇女作对照。各取外周血5～10ml,收集至装有依地酸(edetic-acid)试管及普通试管中。1～3h后样本离心,然后将血浆和血清分 Pregnant women’s plasma and serum contain fetal DNA? The authors studied this and, for the first time, found fetal DNA in maternal plasma, serum and nucleated cells. 43 pregnant women 12 to 40 weeks of pregnancy, of which 30 pregnant women, 13 pregnant women. 10 non-pregnant women as a control. Take 5 ~ 10ml of peripheral blood and collect into edetic-acid tube and common tube. After 1 ~ 3h the samples were centrifuged, then the plasma and serum points