Type 1 diabetes-related antibodies in the fetal circulation: prevalence and influence on cord insulin and birth weight in offspring of mothers with type 1 diabetes.
Type 1 diabetes-related antibodies in the fetal circulation: prevalence and influence on cord insulin and birth weight in offspring of mothers with type 1 diabetes.
复制标题
胎儿循环中 1 型糖尿病相关抗体：1 型糖尿病母亲后代的患病率及其对脐带胰岛素和出生体重的影响。
DOI：
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发表时间：
2004
影响因子：
5.8
通讯作者：
James D. Walker
中科院分区：
文献类型：
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作者：
Robert Lindsay;Anette;B. Hamilton;Andrew A. Calder;Frank D. Johnstone;James D. Walker
During pregnancy, maternal type 1 diabetes-associated autoantibodies may cross the placenta. It is proposed that insulin antibodies (IA) allow transfer of insulin across the placenta, contributing to fetal hyperinsulinemia and macrosomia. We assessed the prevalence of IA, the tyrosine phosphatase IA-2, and glutamic acid decarboxylase (GADA) in cord blood from offspring of mothers with type 1 diabetes (ODM, n = 138) and control mothers (control, n = 47) and further assessed cross-sectional relationships of antibody titers to birth weight and fetal insulin. In ODM, antibodies were frequently present in cord blood; 124 ODM (95%) were positive for IA, 82 (59%) were positive for GADA antibodies, and 61 (44%) were positive for IA-2 antibodies. In controls, GADA and IA-2 antibodies were absent, whereas seven controls (15%) were positive for IA at low titers (P < 0.0001 ODM vs. controls for all).ODM with IA (IA positive) or without IA (IA negative) had similar birth weights (mean +/- sd: IA positive, 3.8 +/- 0.7 kg; IA negative, 4.0 +/- 0.6 kg; P = 0.31) and cord insulin concentrations (IA positive: median, 112 pmol/liter; interquartile range, 62-219 pmol/liter; IA negative: median, 114 pmol/liter; interquartile range, 59-194 pmol/liter; P = 0.96). Similarly, the presence of GADA and/or IA-2 autoantibodies (n = 103) was not associated with differences in birth weight or insulin concentrations. Antibody titers were not associated with birth weight or insulin as continuous variables in either controls or ODM. Islet autoantibodies and IA are a common finding in cord blood of ODM, but we found no evidence that they influence offspring insulin concentrations or weight at birth.
