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Amniotic fluid insulin concentration as a predictor of obesity

B E Metzger1, B L Silverman, N Freinkel

  • 1Center for Endocrinology, Metabolism, and Nutrition, Northwestern University Medical School, Chicago, Illinois 60611-3008.

Archives of Disease in Childhood
|October 1, 1990
PubMed

Insights

High amniotic fluid insulin in diabetic pregnancies may predict childhood obesity. Intrauterine insulin exposure is linked to relative obesity in children by age 6, suggesting a predisposition to weight gain.

Area of Science:

  • Endocrinology
  • Pediatric Obesity
  • Prenatal Metabolism

Background:

  • Maternal diabetes can impact fetal development.
  • Intrauterine metabolic environment may influence long-term health outcomes.
  • Childhood obesity is a significant public health concern.

Purpose of the Study:

  • To investigate the correlation between prenatal amniotic fluid insulin levels and childhood anthropometrics.
  • To determine if intrauterine insulin exposure predicts later obesity in children of diabetic mothers.

Main Methods:

  • Longitudinal study of 56 children born to diabetic mothers.
  • Measured amniotic fluid insulin concentration between 32-38 weeks' gestation.
  • Assessed anthropometric characteristics (relative obesity) at 6 years of age, adjusting for maternal factors.

Main Results:

  • Higher amniotic fluid insulin correlated with increased relative obesity at age 6.
  • This association remained significant after adjusting for maternal obesity and birth macrosomia.
  • Children with the highest prenatal insulin exposure showed the greatest weight gain relative to height.

Conclusions:

  • Prenatal exposure to high insulin levels may predispose children to childhood obesity.
  • Amniotic fluid insulin concentration can serve as a predictor of future obesity.
  • Intrauterine metabolism plays a role in long-term anthropometric development.

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