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2166-P: Association between Maternal Prenatal Glycated Hemoglobin and Fetal Long and Intermediate-Term Glycemic Markers
 

2166-P: Association between Maternal Prenatal Glycated Hemoglobin and Fetal Long and Intermediate-Term Glycemic Markers

Sourav Choudhury, David Sacks, Robert Hanson, Maureen Sampson, Rachel Caballero, Dorota Wasak, Zaqueena Coleman, Yunhua Muller Madhumita Sinha
Diabetes (New York, N.Y.), Vol.75, p.2166-P
06/01/2026
Adiponectin Adipose tissue Biomarkers Cord blood Fetuses Glucose Hemoglobin Hyperglycemia Insulin Intrauterine exposure Leptin Prenatal experience
Introduction and Objective: Hyperglycemia in pregnancy is associated with maternal-fetal adverse outcomes. Examined associations between prenatal and fetal cord blood glycemic biomarkers. Methods: Clinical data, biosamples from 85-Hispanic and American Indian pregnant women and their neonate were examined (Aug 2022-Aug 2025). Biomarkers measured in matched prenatal, and fetal cord blood included total glycated hemoglobin (GlyHB), fructosamine, insulin, Cpeptide, cortisol, hsCRP, APOC3, RBP4, FGF21, leptin, adiponectin. Results: Maternal-GlyHB was positively correlated with fetal biomarkers GlyHB (r=0.44, P<0.001), fructosamine (r=0.28, P<0.05), insulin (r=0.22, P<0.05), Cpeptide (r=0.35, P<0.01), leptin (r=0.33, P<0.01) (Fig1). Multiple linear regression analysis showed that prenatal-GlyHB (β: 0.385; [ 95% CI: 0.076-0.693], P=0.015) was significantly associated with fetal-GlyHB, pregestational BMI did not moderate this relationship. Correlation between maternal and fetal-GlyHB did not differ significantly from that between fetal-GlyHB and 1-hr glucose, following 50 gm oral glucose loading test (Δr=0.17; Z=1.83; p=0.067). Conclusion: Maternal-fetal long and intermediate term biomarker associations were significant, and independent of maternal adiposity. Prenatal-GlyHB and 1-hr glucose showed comparable correlations with fetal-GlyHB, indicating the role of prenatal-GlyHB as viable marker of sustained in utero glycemic exposure.
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