Prothrombotic State, Cardiovascular, and Metabolic Syndrome Risk Factors in Prepubertal Children Born Large for Gestational Age.

OBJECTIVE- To evaluate metabolic syndrome and cardiovascular disease risk factors in prepubertal children born large for gestational age (LGA) to nondiabetic, nonobese mothers. RESEARCH DESIGN AND METHODS-- At 6-7 years of age, the comparison of various factors was made between 31 LGA and 34 appropriate-for-gestational-age (AGA) children: fibrinogen, antithrombin III, protein C and S, fasting insulin, glucose, homeostasis assessment model of insulin resistance (HOMA-IR) index, adiponectin, leptin, visfatin, IGF-1, IGF-binding protein (IGFBP)-1, IGFBP-3, lipids, and the genetic factors V Leiden G1691A mutation, prothrombin 20210A/G polymorphism, and mutation in the enzyme 5,10-methylenetetrahydrofolate-reductase gene (MTHFR-C677T). RESULTS -- LGA children had higher levels of leptin (P < 0.01), fasting insulin (P < 0.01), and HOMA-IR (P < 0.01), but lower IGFBP-3 (P = 0.0001), fibrinogen (P = 0.0001), and lipoprotein(a) (P < 0.001) than AGA children. Significantly more LGA children were homozygous for the MTHFR-C677T mutation (P = 0.0016). CONCLUSIONS-- Being born LGA to nondiabetic, nonobese mothers is associated with diverse effects on cardiometabolic risk factors at prepuberty. [ABSTRACT FROM AUTHOR]