Visceral adiposity without overweight in children born small for gestational age

Lourdes Ibáñez1, Abel Lopez-Bermejo, Larisa Suárez

  • 1Endocrinology Unit, Hospital Sant Joan de Déu, University of Barcelona, Passeig de Sant Joan de Déu, 2, Esplugues, Barcelona, Spain. libanez@hsjdbcn.org

Insights

Children born small for gestational age (SGA) often experience catch-up growth but may develop visceral fat and low adiponectin levels. Weight control alone may not be enough to prevent these metabolic issues.

Area of Science:

  • Pediatric Endocrinology
  • Metabolic Health
  • Body Composition Analysis

Background:

  • Children born small for gestational age (SGA) typically exhibit catch-up growth and may become overweight by age six.
  • Current weight control strategies' effectiveness in preventing visceral fat accumulation and hypoadiponectinemia in SGA children is unclear.

Purpose of the Study:

  • To investigate whether weight control is sufficient to prevent visceral fat excess and hypoadiponectinemia in children born SGA with spontaneous catch-up growth.
  • To compare body composition and metabolic markers between SGA and appropriate for gestational age (AGA) children at age six.

Main Methods:

  • A university hospital setting was used for the study.
  • Sixty-four children (32 SGA, 32 AGA), matched for gender, height, weight, and BMI at age six, were included.
  • Measurements included lean and fat mass via absorptiometry, and abdominal subcutaneous and visceral fat via MRI. Fasting insulin, IGF-I, adiponectin, leptin, and visfatin were also assessed.

Main Results:

  • Despite comparable total lean and fat mass, leptin, and visfatin levels, SGA children exhibited higher fasting insulin and IGF-I.
  • SGA children presented significantly lower high molecular weight adiponectin levels.
  • A notable shift towards increased visceral fat and decreased subcutaneous abdominal fat was observed in SGA children, with fasting insulin being a key determinant.

Conclusions:

  • Children born SGA remain prone to visceral adiposity and hypoadiponectinemia, even without being overweight.
  • Interventions beyond standard weight control are necessary to normalize body composition and metabolic homeostasis in SGA children.
Abstract

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