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Related Experiment Videos

Lipopolysaccharide binding protein in preterm infants.

D Behrendt1, J Dembinski, A Heep

  • 1Department of Neonatology, University Children's Hospital, University of Bonn, D-53113 Bonn, Germany. danibehrendt@01019freenet.de

Archives of Disease in Childhood. Fetal and Neonatal Edition
|October 23, 2004
PubMed
Summary

Lipopolysaccharide binding protein (LBP) levels are significantly elevated in preterm and term infants diagnosed with neonatal bacterial infection (NBI). This suggests LBP is a reliable biomarker for NBI, even in premature infants.

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Area of Science:

  • Neonatal medicine
  • Infectious diseases
  • Biomarker research

Background:

  • Neonatal bacterial infection (NBI) poses a significant threat to preterm infants.
  • Early and accurate diagnosis of NBI is crucial for timely intervention and improved outcomes.
  • Lipopolysaccharide binding protein (LBP) is an acute-phase protein involved in the innate immune response.

Purpose of the Study:

  • To evaluate serum lipopolysaccharide binding protein (LBP) concentrations in preterm infants suspected of neonatal bacterial infection (NBI).
  • To determine if LBP can serve as a diagnostic marker for NBI in this vulnerable population.

Main Methods:

  • Serum samples were collected from 57 preterm and 17 term infants within 72 hours of birth with suspected NBI.
  • LBP concentrations were measured at the time of initial suspicion and at 12 and 24 hours.

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  • NBI diagnosis was confirmed by elevated C-reactive protein and/or interleukin-6 levels.

    • Main Results:

    • Infants with confirmed NBI exhibited significantly higher maximum LBP concentrations compared to those without NBI.
    • Elevated LBP levels were not consistently detected at the initial suspicion of NBI in infected infants.
    • LBP concentrations in preterm infants were comparable to those in term infants, unaffected by gestational age or labor.

    Conclusions:

    • Increased serum LBP concentrations are indicative of NBI in both preterm and term neonates.
    • Preterm infants over 28 weeks gestation demonstrate efficient LBP production, similar to term infants.
    • LBP shows promise as a valuable diagnostic biomarker for identifying NBI in preterm infants.