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Updated: May 15, 2026

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development
08:50

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development

Published on: June 24, 2020

Intrauterine growth restriction and the innate immune system in preterm infants of ≤32 weeks gestation

Birte Tröger1, Thilo Müller, Kirstin Faust

  • 1Department of Paediatrics, University of Lübeck, Lübeck, Germany.

Neonatology
|January 9, 2013
PubMed

Insights

Small for gestational age (SGA) preterm infants show altered immune cell counts and reduced cytokine responses. These differences in innate immunity may contribute to adverse neonatal outcomes, warranting further investigation.

Area of Science:

  • Neonatal immunology
  • Perinatal medicine
  • Innate immune responses

Background:

  • Intrauterine growth restriction (IUGR) is linked to poor neonatal outcomes.
  • IUGR may affect the development of innate immune responses.
  • Investigating immune parameters in preterm small for gestational age (SGA) infants is crucial.

Purpose of the Study:

  • To investigate innate immune response parameters in preterm infants (≤32 weeks gestation) who are small for gestational age (SGA).
  • To compare clinical data and immune responses between SGA and appropriate for gestational age (AGA) preterm infants.

Main Methods:

  • Comparison of clinical data between SGA (n=20) and AGA (n=124) preterm infants (≤32 weeks gestation).
  • Analysis of full blood counts at birth, day 3, and day 7.
  • Assessment of cytokine immune responses using a whole cord blood assay stimulated with lipopolysaccharides.

Main Results:

  • SGA preterm infants faced higher risks of mortality or bronchopulmonary dysplasia.
  • Diminished white blood cells and neutrophils were observed in SGA infants at birth and day 3.
  • Lower concentrations of interleukin-6 and interleukin-10 were found in SGA infants post-stimulation.

Conclusions:

  • SGA preterm infants exhibit distinct differences in blood counts and innate immune response capabilities compared to AGA infants.
  • The role of quantitative deficiencies in innate immunity in adverse outcomes requires further study in larger trials.
Abstract

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