Original Article

Journal of Perinatology (2006) 26, 115–119. doi:10.1038/sj.jp.7211422; published online 12 January 2006

Lipopolysaccharide-binding protein in noninfected neonates and those with suspected early-onset bacterial infection

T W Orlikowsky1, C Trüg1,2, F Neunhoeffer1, M Deperschmidt3, M Eichner4 and C F Poets1

  1. 1Department of Neonatology, University Children's Hospital, Tübingen, Germany
  2. 2Department of Surgery, Loretto Hospital, Freiburg, Germany
  3. 3University Women's Hospital, Tübingen, Germany
  4. 4Department of Medical Biometry, Tübingen, Germany

Correspondence: Dr CF Poets, Univ.-Kinderklinik Tübingen, Germany, Calwerstr. 7, 72076 Tübingen, Germany. E-mail:cfpoets@med.uni-tuebingen.de

Received 11 April 2005; Revised 11 April 2005; Accepted 21 October 2005; Published online 12 January 2006.

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Abstract

Objectives:

 

To investigate postnatal lipopolysaccharide-binding protein (LBP) kinetics in term neonates and to test its diagnostic accuracy for early-onset bacterial infection (EOBI).

Study design:

 

A total of 99 neonates with clinical and serological signs of EOBI comprised the study group; 198 neonates with risk factors, but without EOBI, served as controls. LBP, C-reactive protein (CRP) and interleukin-8 (IL-8) were determined.

Results:

 

LBP in the noninfected group increased until 24 h after birth (P<0.05 vs 6 h). LBP and CRP correlated strongly in neonates with suspected EOBI (r=0.63). Although LBP reached a higher sensitivity than CRP 6 and 12 h after clinical suspicion (45 (24–68) and 79% (54–94) vs 9 (0–24) and 39% (17–64); P<0.05)), EOBI was most reliably detected by IL-8.

Conclusion:

 

LBP kinetics were age-dependent. LBP was not sufficiently sensitive in the prediction of EOBI.

Keywords:

newborn, infection, lipopolysaccharide-binding protein, interleukin-8, C-reactive protein

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