Pregnancy-associated plasma protein-A truncation limits in antenatal screening for trisomy 18
نویسندگان
چکیده
منابع مشابه
Screening for trisomy 18 by maternal age, fetal nuchal translucency, free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A.
OBJECTIVES To derive a model and examine the performance of first-trimester screening for trisomy 18 by maternal age, fetal nuchal translucency (NT) thickness, and maternal serum free beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein-A (PAPP-A). METHODS Prospective combined screening for trisomy 21 was performed at 11 + 0 to 13 + 6 weeks in 56 893 singleton ...
متن کاملRadioimmunoassay for pregnancy-associated plasma protein A.
A specific and highly sensitive radioimmunoassay for determination of pregnancy-associated plasma protein A in human serum is described. The minimum detection limit for this protein was 2.9 micrograms/L. The within- and between-assay coefficients of variation were 4.0 and 4.5%, respectively. The circulating protein was detected within 32 days of conception in eight normal pregnancies and within...
متن کاملFirst-trimester screening for trisomy 21 by free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A: impact of maternal and pregnancy characteristics.
OBJECTIVES To use multiple regression analysis to define the contribution of maternal variables that influence the measured concentration of free beta-human chorionic gonadotropin (beta-hCG) and pregnancy-associated plasma protein-A (PAPP-A), and the interaction between these covariates, in first-trimester biochemical screening for trisomy 21. METHODS This was a multicenter study of prospecti...
متن کاملPregnancy-associated plasma protein A in pregnancy-related gynaecologic emergency.
Serum concentrations of pregnancy-associated plasma protein A (PAPP-A) were measured in patients with pregnancy-related gynaecologic emergencies including ectopic pregnancy (n = 124) and intrauterine abortion (n = 40). The results were compared with those in normal pregnancy (n = 136) and non-pregnant women (n = 460). In ectopic pregnancy and intrauterine abortion, the PAPP-A levels were lower ...
متن کاملComparison of pregnancy-associated plasma protein-A, troponin and creatine kinase-MB levels in acute coronary syndrome
Background: Early diagnosis and proper treatment of patient with acute coronary syndrome (ACS) and ischemic heart disease are important in determining prognosis, preventing adverse effects, and may even save lives. In this study, the level of pregnancy-associated plasma protein-A (PAPP-A) in ACS patients was compared with the control group, in addition to cardiac Troponin (cTn) and creatine kin...
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ژورنال
عنوان ژورنال: Journal of Medical Screening
سال: 2017
ISSN: 0969-1413,1475-5793
DOI: 10.1177/0969141316688499