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


METHODS
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.


CONCLUSIONS
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.
Bunt
Joy C
JC
Obesity and Clinical Diabetes Research Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 4212 North 16th Street, Room 541-A, Phoenix, Arizona 85016, USA. jbunt@mail.nih.gov
Tataranni
P Antonio
PA
Salbe
Arline D
AD
D001130:Arizona; D002648:Child; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D007198:Indians, North American; D011247:Pregnancy; D011254:Pregnancy in Diabetics / Q000503:physiopathology*; D011297:Prenatal Exposure Delayed Effects; D012189:Retrospective Studies; D013599:Systole / Q000502:physiology*
D006442:Glycated Hemoglobin