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Ann Pediatr Endocrinol Metab > Volume 12(2); 2007 > Article
Relationship with Eosinophil Cationic Protein (ECP)/Eosinophil-derived Neurotoxin (EDN) Levels and Growth Status among Asthmatic Children.
Kyoung Huh, Hyo Bin Kim, Chang Keun Kim, Mi Jung Park
1Department of Pediatrics, Inje University Sanngye Paik Hospital, Seoul, Korea. pmj@sanggyepaik.ac.kr
2Asthma Allergy Center, Inje University Sanngye Paik Hospital, Seoul, Korea.
Abstract
PURPOSE
Short statue or obesity has been reported in asthmatic children, but the results are inconsistent. Recently eosinophil cationic protein (ECP), eosinophil-derived neurotoxin (EDN) levels has been known as important markers of airway inflammation and reflect asthma severity as well. The aim of this study is to evaluate the growth status and to analyze the possible relation with serum EDN and ECP levels. METHODS: A total of 90 children (57 boys and 33 girls, 4 to 16 years old) who had been admitted for bronchial asthma were included. To standardize the data for age and sex, standard deviation scores (SDS) were calculated for height and weight. Values less than -2 SDS below the mean were considered to be extremely low, -1 SDS to 1 SDS as normal, values higher than 2 SDS considered very high. Serum EDN and ECP levels were measured.
RESULTS
The mean height SDS was 0.33+/-0.85 and weight SDS was 0.23+/-1.20. The prevalence of short stature was 2.2%, normal stature 75.5%, and tall stature 22.2%. The prevalence of underweight was 7.8%, normal weight 71.1%, and overweight 21.1%. Height SDS was negatively correlated with serum ECP (r=-0.27, P=0.01) and EDN (r=-0.27, P=0.009) and weight SDS was negatively correlated with serum ECP (r=-0.20, P=0.05). Height SDS were significantly lower in high ECP and EDN groups compared to normal ECP and EDN groups (P<0.01 and P<0.009, respectively). Weight SDS was lower in high ECP group compared to normal ECP group (P<0.05).
CONCLUSION
Growth (height and weight) was inversely correlated with serum EDN and ECP levels. These results suggest that high ECP and EDN levels might be related with growth retardation of asthmatic children.
Keywords: Growth;Eosinophil cationic protein;Eosinophil-derived neurotoxin;Asthma;Children
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