Growth Hormone-Binding Protein in Normal and Pathologic Gestation: Correlations with Maternal Diabetes and Fetal Growth1

Autor: H. D. McIntyre, Ross Barnard, F. Y. Chan
Rok vydání: 1997
Předmět:
Zdroj: The Journal of Clinical Endocrinology & Metabolism. 82:1879-1884
ISSN: 1945-7197
0021-972X
Popis: To date, measurements of GH-binding protein (GHBP) during human pregnancy have been carried out using assays susceptible to interference by the elevated levels of human placental GH typical of late gestation. We recruited a large cohort of pregnant women (n = 140) for serial measurements of GHBP and used the ligand immunofunctional assay for GHBP. For normal gravidas, GHBP levels fell throughout gestation. Mean levels were 1.07 nmol/L (se = 0.18) in the first trimester, 0.90 nmol/L (se = 0.08) at 18–20 weeks, 0.73 nmol/L (se = 0.05) at 28–30 weeks, and 0.62 nmol/L (se = 0.06) at 36–38 weeks. GHBP levels in the first trimester correlated significantly with maternal body mass index (r = 0.58; P < 0.01). GHBP levels in pregnancies complicated by noninsulin-dependent diabetes mellitus (NIDDM) were substantially elevated at all gestational ages. The mean value in the first quarter (2.29 nmol/L) was more than double the normal mean (P < 0.01). In contrast, patients with insulin-dependent diabetes mellitus (IDDM...
Databáze: OpenAIRE