<abstract xmlns="http://www.w3.org/1999/xhtml"><p> In this study, we assessed the feasibility of fetal RhD genotyping by analysis of cell-free fetal DNA(cffDNA) extracted from plasma samples of Rhesus (Rh) D-negative pregnant women by using real-time polymerase chain reaction (PCR). Fetal genotyping was performed on 30 RhD-negative women between 9 and 39 weeks of gestation who were referred to us for invasive testing [amniocentesis/ chorionic villi sampling (CVS)]. The fetal RHD genotype was determined based on real-time PCR method. Exons 7 and 10 of the RHD and SRY genes were targeted. Among the pregnant women, 12 were carrying male and 17 were carrying female fetuses. Out of 29 pregnant women, 21 had RhD-positive and nine had RhD-negative fetuses. One sample )case 12, whose blood group was found to be AB Rh [+] (was excluded due to controversial results from repeated serological analyses. All prenatal results were in concordance with postnatal RhD status and fetal sex without false- positive or -negative results. Performing real-time PCR on cffDNA showed accurate, efficient and reliable results, allowing rapid and high throughput non invasive determination of fetal sex and RhD status in clinical samples.</p></abstract>

In this study, we assessed the feasibility of fetal RhD genotyping by analysis of cell-free fetal DNA(cffDNA) extracted from plasma samples of Rhesus (Rh) D-negative pregnant women by using real-time polymerase chain reaction (PCR). Fetal genotyping was performed on 30 RhD-negative women between 9 and 39 weeks of gestation who were referred to us for invasive testing [amniocentesis/ chorionic villi sampling (CVS)]. The fetal RHD genotype was determined based on real-time PCR method. Exons 7 and 10 of the RHD and SRY genes were targeted. Among the pregnant women, 12 were carrying male and 17 were carrying female fetuses. Out of 29 pregnant women, 21 had RhD-positive and nine had RhD-negative fetuses. One sample )case 12, whose blood group was found to be AB Rh [+] (was excluded due to controversial results from repeated serological analyses. All prenatal results were in concordance with postnatal RhD status and fetal sex without false- positive or -negative results. Performing real-time PCR on cffDNA showed accurate, efficient and reliable results, allowing rapid and high throughput non invasive determination of fetal sex and RhD status in clinical samples.

DETERMINATION OF FETAL RHESUS D STATUS BY MATERNAL PLASMA DNA ANALYSIS

Department of Medical Genetics, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey

Department of Medical Biology, Ege University, Faculty of Medicine, Bornova, Izmir, Turkey

Department of Obstetrics and Gynecology, Ege University, Faculty of Medicine, Bornova,

Balkan Journal of Medical Genetics

{"article-title":"DETERMINATION OF FETAL RHESUS D STATUS BY MATERNAL PLASMA DNA ANALYSIS"}

In this study, we assessed the feasibility of fetal RhD genotyping by analysis of cell-free fetal DNA(cffDNA) extracted from plasma samples of Rhesus (Rh)...

DETERMINATION OF FETAL RHESUS D STATUS BY MATERNAL PLASMA DNA ANALYSIS

Published Online: Mar 11, 2014

Page range: 33 - 38

DOI: https://doi.org/10.2478/bjmg-2013-0029

Keywords
Rhesus D (RhD), Non invasive prenatal diagnosis

This content is open access.

DETERMINATION OF FETAL RHESUS D STATUS BY MATERNAL PLASMA DNA ANALYSIS

Published Online: Mar 11, 2014

Page range: 33 - 38

DOI: https://doi.org/10.2478/bjmg-2013-0029

KeywordsRhesus D (RhD), Non invasive prenatal diagnosis

This content is open access.

Keywords
Rhesus D (RhD), Non invasive prenatal diagnosis