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- W4366830554 abstract "OBJECTIVES/GOALS: Fetal glucose dynamics mediate many of the adverse outcomes seen in infants of diabetic mothers (IDM). The goals of this study are to identify: (1) rates of blood glucose change in normoglycemic and hypoglycemic IDM; (2) their relation to in-utero insulin exposure; and (3) their transcriptional impacts on placental and umbilical vasculature. METHODS/STUDY POPULATION: Using a longitudinal prospective study design, placental/umbilical cord tissue and maternal hemoglobin A1c (HbA1c) are being collected from mothers diagnosed with Type 1, Type 2, or gestational diabetes mellitus. Blood glucose levels are also collected from their infants at birth, and every 3-4 hours for up to 9 hours to determine the rate of change. Linear regression modeling will be used to determine associations between placental and umbilical endothelial RNA expression, umbilical cord insulin levels, and maternal HbA1c within each diabetic sub-type. Gene expression from endothelial specimens will be compared between diabetic sub-types and between normoglycemic and hypoglycemic infants via paired t-tests using Benjamini-Hochberg procedure for false discovery rate correction. RESULTS/ANTICIPATED RESULTS: We hypothesize the following; (1) glucose levels will have a steeper rate of change in hypoglycemic infants; (2) maternal HbA1c and in-utero insulin levels will correlate with the level of transcriptional change identified in placental and umbilical endothelial samples; (3) a negative association will exist between cord insulin levels and the rate of change in infant glucose levels; and (4) a positive association will exist between cord insulin level and transcriptional change on the placental and umbilical endothelium. DISCUSSION/SIGNIFICANCE: Identifying gene expression changes in diabetic placental/umbilical endothelium, and the role of insulin/glucose in these changes, is key to managing diabetic vasculopathy and its adverse outcomes. Understanding infant insulin response may also guide management of hypoglycemia and decrease the risk for neonatal intensive care unit admission." @default.
- W4366830554 created "2023-04-25" @default.
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- W4366830554 date "2023-04-01" @default.
- W4366830554 modified "2023-09-26" @default.
- W4366830554 title "418 A CTS Team Approach to Fetal Hyperinsulinemia in Diabetic Pregnancy and its Effects on Vasculature and Early Life Metabolism" @default.
- W4366830554 doi "https://doi.org/10.1017/cts.2023.451" @default.
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