Maternal serum levels of total activin-A in first-trimester trisomy 21 pregnancies

被引：12
作者：
Spencer, K
Liao, AW
Skentou, H
Ong, CYT
Nicolaides, KH
机构：
[1] Harold Wood Hosp, Dept Clin Biochem, Endocrine Unit, Romford RM3 0BE, Essex, England
[2] Kings Coll Hosp London, Harris Birthright Res Ctr Fetal Med, London SE5 8RX, England
来源：
PRENATAL DIAGNOSIS | 2001年 / 21卷 / 04期
关键词：
prenatal screening; Down syndrome; inhibin; free beta-hCG; PAPP-A;
D O I：
10.1002/pd.53
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
Maternal serum total activin-A concentration was measured in 45 pregnancies affected by trisomy 21 and il 93 control unaffected pregnancies at 10-14 weeks of gestation. In the trisomy 21 pregnancies total activin-A concentration was significantly higher (1.36 MoM of the unaffected pregnancies) and in 16% of cases the level was above the 95th centile of normal. The log(10) SD for the control group and the trisomy 21 group were 0.17 and 0.22. respectively. The median pregnancy associated plasma protein-A (PAPP-A) in this trisomy 21 series was 0.49 and for free beta -hCG was 2.05. In the trisomy group there were significant positive associations between total activin-A and PAPP-A (0.6071) and free beta -hCG (0.4255). The low median difference and the high overlap in values between trisomic and unaffected pregnancies make total activin-A of little practical use in first-trimester screening for trisomy 21. Copyright (C) 2001 John Wiley & Sons, Ltd.
引用
收藏
页码：270 / 273
页数：4
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