Maternal plasma concentrations of IGF-1, IGFBP-1, and C-peptide in early pregnancy and subsequent risk of gestational diabetes mellitus
2005
Objective Insulin-like growth factor-1 (IGF-1) and IGF binding protein-1 (IGFBP-1) may be important determinants of glucose homeostasis. We examined the association between circulating concentrations of IGF-1, IGFBP-1 in early pregnancy and development of gestational diabetes mellitus (GDM). Study design Maternal plasma (collected at 13 weeks) IGF-1, IGFBP-1, and C-peptide were measured using immunoassay. Relative risks (RR) and 95% CIs were calculated. Results The percentage of the cohort that developed GDM was 5.8% (n = 804). Free IGF-1 and IGFBP-1 were inversely associated with GDM risk, while C-peptide was positively associated with GDM risk ( P for trend test Conclusion These associations may help to further elucidate the pathologic process of GDM.
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