Document Detail


Soluble receptor for advanced glycation end products (sRAGE) in tracheobronchial aspirate fluid and cord blood of very low birth weight infants with chorioamnionitis and funisitis.
MedLine Citation:
PMID:  20727688     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: A systemic fetal inflammatory response, reflected by histological funisitis is associated with pulmonary morbidity and increased mortality after premature birth. The receptor for advanced glycation end products (RAGE) is a membrane-bound multiligand receptor with a key role in inflammation. Soluble RAGE (sRAGE) is created by alternative mRNA splicing or shedding of the receptor's extracellular domain and can inhibit RAGE-activation.
AIMS: To assess the association of funisitis with airway and systemic concentrations of sRAGE in very premature infants.
METHODS: Forty-two ventilated infants (gestational age: 27.4 +/- 1.8weeks, birth weight: 1017 +/- 229 g [mean +/- SD]) were studied. sRAGE concentrations were measured in tracheobronchial aspirate fluid (TAF) on days of life 1, 3, 5, 7 and 10 and in umbilical cord serum of 28 infants by ELISA. The secretory component for IgA (SC) served as reference protein in TAF. Placental tissue, membranes and umbilical cords were examined microscopically to distinguish three groups: chorioamnionitis (n=9), funisitis (n=17) and controls (n=16).
RESULTS: The funisitis group had lower sRAGE concentrations than both other groups in cord blood serum (median: 0.52 ng/ml [25th-75th centile: 0.32-0.91]; control, 1.72 [1.02-2.69]; chorioamnionitis, 1.44 [0.92-1.63], p<0.01) and TAF on day 1 (290 ng/ngSC [140-400]; control, 2750 [1470-28920]; chorioamnionitis, 2150 [1220-7140], p<0.01). sRAGE in TAF remained lower in the funisitis than in the chorioamnionitis group on days 3 and 10, p<0.01 respectively.
CONCLUSIONS: Decreased sRAGE in airways and circulation after funisitis may contribute to an imbalance between pro- and anti-inflammatory factors priming very premature infants for pulmonary injury and increasing the risk of adverse outcome.
Authors:
Wolfgang Thomas; Silvia Seidenspinner; Natalia Kawczyńska-Leda; Johannes Wirbelauer; Marta Szymankiewicz; Christian P Speer
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2010-08-21
Journal Detail:
Title:  Early human development     Volume:  86     ISSN:  1872-6232     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-09     Completed Date:  2011-01-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  593-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
University Children's Hospital, University of Würzburg, Germany. Thomas_w@klinik.uni-wuerzburg.de
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MeSH Terms
Descriptor/Qualifier:
Body Fluids / chemistry*
Chorioamnionitis / blood*
Enzyme-Linked Immunosorbent Assay
Female
Fetal Blood / chemistry*
Humans
Infant, Newborn
Infant, Very Low Birth Weight / blood*
Pregnancy
Receptors, Immunologic / blood*
Chemical
Reg. No./Substance:
0/Receptors, Immunologic; 0/advanced glycosylation end-product receptor

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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