Non-invasive prenatal diagnosis of fetal RhD by using free fetal DNA.
Başgül Yiğiter, Alin
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KünyeGonenc G, Isci H, Yigiter AB, Hancer V, Buyukdogan M, Guducu N, Dunder I. Non-invasive prenatal diagnosis of fetal RhD by using free fetal DNA. Clin Exp Obstet Gynecol. 2015;42(3):344-6.
Objective: Anti-D immunoglobulin is applied to all pregnant women having RhD incompatibility to prevent hemolytic disease of the newborn. The aim of this study is to determine fetal RhD status in the Rh incompatible pregnancies with an non-invasive technique; free fetal DNA isolation from maternal circulation. In the case of Rh incompatibility especially with a history of previous fetal anemia, it can be beneficial to know Rh status antenatally in terms of monitoring fetuses with Rh positive [RhD(+)] status consciously. Materials and Methods: Total free DNA was isolated in 50 Rh negative [RhD(-)] pregnant women, who had RhD alloimmunisation with their husbands. The gene in isolated DNA was investigated with TagMan prob and real time PCR by using primers belonging to exon 7 of the RhD gene.