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. 2005 Jun;90(6):3225-9.
doi: 10.1210/jc.2005-0007. Epub 2005 Mar 29.

Intrauterine exposure to diabetes is a determinant of hemoglobin A(1)c and systolic blood pressure in pima Indian children

Joy C Bunt  1 , P Antonio Tataranni, Arline D Salbe
Affiliations

Intrauterine exposure to diabetes is a determinant of hemoglobin A(1)c and systolic blood pressure in pima Indian children

Joy C Bunt et al. J Clin Endocrinol Metab. 2005 Jun.

Abstract

Context/objective: Given the increasing rates of both childhood obesity and type 2 diabetes (T2DM), we investigated whether maternal diabetes status during pregnancy is a determinant of risk factors associated with T2DM or cardiovascular disease in offspring during childhood.

Design/participants: Forty-two Pima Indians, aged 7-11 yr, were identified retrospectively from maternal oral glucose tolerance tests as offspring of a diabetic pregnancy (22 ODM, eight males, 14 females) or offspring born before the mother developed diabetes (20 PRE, 12 males, eight females). SETTING/MAIN OUTCOME MEASURES: Weight, height, body mass index, percent body fat, blood pressure, and fasting concentrations of glucose, insulin, hemoglobin A1c (HbA1c), total cholesterol, triglycerides, and high-density lipoprotein-cholesterol were measured while staying in an in-patient clinical research unit and compared in cross-sectional analyses.

Results: After adjustment for age and gender, ODM had significantly higher concentrations of HbA1c (ODM = 5.7 +/- 0.4, PRE = 5.0 +/- 0.4%, P = 0.002), higher systolic (SBP) blood pressure (ODM = 118 +/- 13, PRE = 107 +/- 10 mm Hg; P = 0.02), and lower concentrations of high-density lipoprotein (ODM = 41 +/- 9, PRE = 48 +/- 6 mg/dl, P = 0.03) than PRE. Maternal diabetes status during pregnancy persisted as a significant determinant of SBP (beta = 7.50, P = 0.03) and HbA1c (beta = 0.43, P = 0.002), independent of age, gender, and percent body fat.

Conclusion: Intrauterine exposure to diabetes is a significant determinant of higher SBP and HbA1c during childhood, independent of adiposity and a genetic predisposition to T2DM. These data suggest that in utero exposure to diabetes confers an additional independent risk for the development of T2DM and/or cardiovascular disease later in life.

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Figures

Fig. 1
Fig. 1
Scatter plots of individual HbA1c values in children born before their mothers developed type 2 diabetes (PRE) and in offspring of diabetic pregnancies (ODM). A, Unadjusted values. B, Values after adjustment for gender and age. X, PRE; O, ODM; solid bars, group means.
Fig. 2
Fig. 2
Relationships between gender- and age-adjusted measures of SBP and percent body fat in children born before their mothers developed type 2 diabetes (PRE) and offspring of diabetic pregnancies (ODM).▵, solid line, PRE;•, dashed line, ODM.
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