Fetal RhD genotyping by real time quantitative PCR in maternal plasma of RhD-negative pregnant women from the Sahel of Tunisia

被引：3

作者：

Moussa, Hajer ^{[1
,2
]}

Tsochandaridis, Marthe ^{[1
]}

Jemni-Yacoub, Saloua ^{[2
]}

Hmida, Slama ^{[3
]}

Khairi, Hedi ^{[4
]}

Gabert, Jean ^{[1
]}

Levy-Mozziconacci, Annie ^{[1
]}

机构：

[1] Aix Marseille Univ, AP HM Hop Nord, Lab Biochim & Biol Mol, Unite Fonct Biol Materno Foetale, Marseille, France

[2] Ctr Reg Transfus Sanguine, Unite Rech UR06SP05, Sousse, Tunisia

[3] Ctr Natl Transfus Sanguine, Tunis, Tunisia

[4] Hop Farhat Hached, Serv Gynecol Obstetr, Sousse, Tunisia

来源：

ANNALES DE BIOLOGIE CLINIQUE | 2012年 / 70卷 / 06期

关键词：

maternal plasma; fetal DNA; cell-free DNA; RhD gene; real-time quantitative PCR; RhD genotyping; PRENATAL-DIAGNOSIS; DNA; AFRICANS; SERUM;

D O I：

10.1684/abc.2012.0769

中图分类号：

R446 [实验室诊断]; R-33 [实验医学、医学实验];

学科分类号：

1001 ;

摘要：

Objective: The aim of this study was to evaluate the diagnostic value of RhD fetal genotyping from the plasma of RhD-negative pregnant women. Methods: We analysed the plasma samples of 65 pregnant women. DNA quantification was done using real time quantitative PCR (RQ-PCR) in multiplex targeting multiple RhD exons 5, 7 and 10, with a standardized pool of plasmid calibrators. Results were compared with serological analysis of cord blood after delivery. Results: Fetal RhD status was predicted with 95.38% accuracy from maternal plasma of pregnant women in the 11th to 40th weeks of gestation. One false positive but no false negative results were found. Thus the sensitivity of the assay was 100% and the specificity was 94.44 %. Conclusion: The present data demonstrates that the fetal RhD genotyping approach could be achieved efficiently with RQ-PCR for RhD-negative tunisian pregnant women.

引用

页码：683 / 688

页数：6

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