Leptin may enhance hepatic insulin sensitivity in children and women born small for gestational age

Anna Kistner1, Mireille Vanpée, Kerstin Hall

  • 1Department of Molecular Medicine and Surgery Karolinska Institutet SE-171 76, Stockholm Sweden.

Endocrine Connections
|June 20, 2013
PubMed

Insights

Small for gestational age (SGA) girls and women exhibit elevated leptin levels, potentially offering protection against insulin resistance. Insulin and leptin influence insulin-binding protein 1 (IGFBP1) levels in children born SGA.

Area of Science:

  • Endocrinology
  • Pediatrics
  • Metabolic Health

Background:

  • Children born small for gestational age (SGA) face increased risks for type 2 diabetes.
  • Leptin, a hormone, can reverse metabolic issues associated with early type 2 diabetes.
  • Low insulin-binding protein 1 (IGFBP1) levels are predictive of type 2 diabetes development.

Purpose of the Study:

  • To investigate leptin, insulin, and IGFBP1 levels in preterm and SGA children and adult women.
  • To assess the role of leptin as a compensatory mechanism in the development of insulin resistance.

Main Methods:

  • Studied 76 children (8.5-10 years) and 45 women (23-30 years).
  • Participants included those born appropriate for gestational age, SGA at term, and preterm.
  • Measured fasting levels of IGFBP1, leptin, insulin, IGF1, and total adiponectin (in women).

Main Results:

  • Term SGA girls and women showed higher leptin levels relative to BMI SDS.
  • Leptin and insulin explained over half of the IGFBP1 variability in children.
  • Term SGA women had lower IGFBP1 levels compared to controls.

Conclusions:

  • Elevated leptin levels were observed in term SGA girls and women, particularly adults.
  • IGFBP1 was lower in term SGA women, with leptin and insulin significantly impacting IGFBP1 in children.
  • Higher leptin may serve a protective role in enhancing hepatic insulin sensitivity.
Abstract

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