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- Title
Early Prediction of Hypertensive Disorders of Pregnancy Using Cell-Free Fetal DNA, Cell-Free Total DNA, and Biochemical Markers.
- Authors
Kim, Shin Young; Kim, Hyun Jin; Park, So Yeon; Han, Yoo Jung; Choi, June Seek; Ryu, Hyun Mee
- Abstract
<bold>Objective: </bold>To evaluate the predictive value of separate and combined tests using cell-free fetal DNA (cffDNA), cell-free total DNA (cfDNA), and biochemical markers for the early detection of pregnancies with hypertensive disorders.<bold>Methods: </bold>A nested case-control study was conducted with 135 singleton pregnancies including 17 gestational hypertension cases, 34 preeclampsia (PE) cases, and 84 controls. We performed real-time quantitative PCR to measure levels of DSCR3 and RASSF1A as cffDNA markers and HYP2 as a cfDNA marker in the first and early second trimesters. Levels of pregnancy-associated plasma protein A (PAPP-A), α-fetoprotein, β-human chorionic gonadotropin, unconjugated estriol, and inhibin A were also determined.<bold>Results: </bold>Compared with controls, the median levels and multiples of the median (MoM) values of HYP2 were significantly higher in the PE and hypertensive disorders of pregnancy (HDP) groups at 6-14 and 15-23 weeks. Frist-trimester PAPP-A MoM was significantly lower in PE and HDP than in controls. For PE and HDP, the best model included the first-trimester DSCR3, HYP2, and PAPP-A MoM values achieving detection rates of 67 and 58% at a fixed 10% false-positive rate, respectively [area under the receiver operating characteristic curve 0.832 (95% CI 0.689-0.928) for PE; 0.751 (0.607-0.863) for HDP].<bold>Discussion: </bold>The study demonstrates the potential utility of combined first-trimester cffDNA, cfDNA, and PAPP-A for the early prediction of PE.
- Subjects
PREECLAMPSIA diagnosis; PROTEIN metabolism; CARDIOVASCULAR diseases in pregnancy; ALPHA fetoproteins; CHORIONIC gonadotropins; DNA; GESTATIONAL age; GLYCOPROTEINS; HYPERTENSION in pregnancy; POLYMERASE chain reaction; FIRST trimester of pregnancy; SECOND trimester of pregnancy; PREGNANCY proteins; PRENATAL diagnosis; PROTEINS; CASE-control method; EARLY diagnosis; ESTRIOL; EPIGENOMICS; DIAGNOSIS
- Publication
Fetal Diagnosis & Therapy, 2016, Vol 40, Issue 4, p255
- ISSN
1015-3837
- Publication type
journal article
- DOI
10.1159/000444524