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Low postnatal serum IGF-I levels are associated with bronchopulmonary dysplasia (BPD)

Chatarina Löfqvist1, Gunnel Hellgren, Aimon Niklasson

  • 1Department of Ophthalmology, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden. chatarina.lofqvist@gu.se

Acta Paediatrica (Oslo, Norway : 1992)
|August 29, 2012
PubMed

Insights

Low insulin-like growth factor-1 (IGF-I) levels in the early weeks after birth are linked to the development of bronchopulmonary dysplasia (BPD) in very preterm infants. These findings highlight IGF-I as a potential biomarker for BPD risk.

Area of Science:

  • Neonatal Medicine
  • Pediatric Pulmonology
  • Endocrinology

Background:

  • Bronchopulmonary dysplasia (BPD) is a significant cause of morbidity in very preterm infants.
  • Insulin-like growth factor-1 (IGF-I) plays a crucial role in lung development and repair.
  • Understanding factors influencing BPD development is critical for improving infant outcomes.

Purpose of the Study:

  • To investigate the relationship between postnatal serum insulin-like growth factor-1 (IGF-I) levels and the development of bronchopulmonary dysplasia (BPD).
  • To identify early predictors of BPD in very preterm infants.

Main Methods:

  • A longitudinal study was conducted on 108 very preterm infants (mean gestational age 27.2 weeks).
  • Serum IGF-I levels were measured weekly from birth until 36 weeks postmenstrual age (PMA).
  • Multivariate regression models were used to determine independent predictors of BPD.

Main Results:

  • Infants who developed BPD had significantly lower mean serum IGF-I levels during postnatal days 3-21 and PMA 30-33 weeks compared to infants without BPD.
  • The rate of postnatal IGF-I increase was also lower in infants with BPD.
  • Lower gestational age, male gender, and lower mean serum IGF-I levels during the first three weeks were the strongest predictors of BPD.

Conclusions:

  • Lower serum IGF-I concentrations in the early postnatal period are associated with an increased risk of developing BPD in very preterm infants.
  • IGF-I may serve as an early biomarker for predicting BPD development.
  • These findings suggest potential therapeutic targets for preventing or mitigating BPD.
Abstract

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