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- Title
Urinary Eosinophil Protein X in Children with Atopic Asthma.
- Authors
Nuijsink, M.; Hop, W. C. J.; Sterk, P. J.; Duiverman, E. J.; Hiemstra, P. S.; De Jongste, J. C.
- Abstract
The aim of this study was to investigate the relationship between urinary eosinophil protein X (uEPX) and asthma symptoms, lung function, and other markers of eosinophilic airway inflammation in asthmatic school children. Methods. A cross-sectional study was performed in 180 steroid dependent atopic children with stable moderately severe asthma, who were stable on 200 or 500µg of fluticasone per day. uEPX was measured in a single sample of urine and was normalized for creatinine concentration (uEPX/c). Symptom scores were kept on a diary card. FEV1 and PD20 methacholine were measured. Sputum induction was performed in 49 and FENO levels measured in 24 children. Results. We found an inverse correlation between uEPX/c and FEV1 (r = -.20, P = .01) and a borderline significant correlation between uEPX/c and PD20 methacholine (r -.15, P = .06). Symptom score, %eosinophils and ECP in induced sputum and FENO levels did not correlate with uEPX/c. Conclusion. uEPX/c levels did not correlate with established markers of asthma severity and eosinophilic airway inflammation in atopic asthmatic children.
- Subjects
PROTEINS; EOSINOPHILS; ASTHMA in children; LUNGS; CHOLINE
- Publication
Mediators of Inflammation, 2007, Vol 2007, Issue 1, p1
- ISSN
0962-9351
- Publication type
Article
- DOI
10.1155/2007/49240