Evaluation of IgA measurements as a method for detecting maternal blood contamination of cord blood samples

被引：33

作者：

Ownby, DR

McCullough, J

Johnson, CC

Peterson, EL

机构：

[1] HENRY FORD HLTH SYST,DEPT PEDIAT,DIV CLIN IMMUNOL & ALLERGY,DETROIT,MI

[2] HENRY FORD HLTH SYST,DIV BIOSTAT & RES EPIDEMIOL,DETROIT,MI

来源：

PEDIATRIC ALLERGY AND IMMUNOLOGY | 1996年 / 7卷 / 03期

关键词：

cord blood; IgE; IgA; predicting allergies; infants;

D O I：

10.1111/j.1399-3038.1996.tb00119.x

中图分类号：

R392 [医学免疫学];

学科分类号：

100102 ;

摘要：

Several studies have evaluated the value of cord blood IgE concentrations for predicting the risk of allergic disease in children. In an of these studies it is necessary to exclude cord blood samples in which the IgE may be falsely elevated due to admiring of maternal and fetal blood during parturition. The most common method for detecting mixing of fetal and maternal blood is measurement of cord blood IgA concentrations. We have examined the theoretical basis of IgA measurements for detecting maternal blood contamination and reexamined our own data to evaluate IgA measurements. Our data suggest that the average IgA concentration of 28.2 mu g/ml used in previous studies may not adequately exclude contaminated cord blood sample. Failure to reject contaminated cord blood samples would reduce the positive predictive value of cord blood IgE measurements.

引用

页码：125 / 129

页数：5

共 23 条

[1] DETERMINANTS OF CORD-BLOOD IGE CONCENTRATIONS IN 6401 GERMAN NEONATES [J].