S-Space College of Medicine/School of Medicine (의과대학/대학원) Pediatrics (소아과학전공) Journal Papers (저널논문_소아과학전공)
Cord blood KL-6, a specific lung injury marker, correlates with the subsequent development and severity of atypical bronchopulmonary dysplasia
- Kim, Do-Hyun; Kim, Han-Suk; Shim, So-Yeon; Lee, Jin-A; Choi, Chang Won; Kim, Ee-Kyung; Kim, Beyong Il; Choi, Jung-Hwan
- Issue Date
- Neonatology. 2008;93(4):223-9. Epub 2007 Nov 16.
- Biological Markers/blood; Bronchopulmonary Dysplasia/*blood; C-Reactive Protein/analysis; Case-Control Studies; Female; Fetal Blood/*metabolism; Gestational Age; Humans; Infant, Newborn; Infant, Premature/*blood; Male; Mucin-1/*blood
- BACKGROUND: A considerable number of preterm infants may have been exposed to inflammation in utero and may be born with an inflamed lung. OBJECTIVES: To determine the impact of antenatal lung injury and inflammatory response on the pathogenesis of bronchopulmonary dysplasia (BPD) according to its clinical pattern, using KL-6 (as a lung injury marker) and C-reactive protein (CRP) (as a marker of inflammatory response). METHODS: In this case-control study, a total of 74 infants (<32 weeks of gestation) including BPD with minimal early lung disease ('atypical'; 21 infants), BPD with significant early lung disease ('classic'; 29 infants) and the non-BPD (24 infants) groups underwent KL-6 and CRP in cord blood determinations. RESULTS: The cord plasma KL-6 levels were significantly higher in the atypical and the total BPD groups than in the non-BPD group (median = 60.9 vs. 34.5 U/ml, p = 0.031; 43.5 vs. 34.5 U/ml, p = 0.02). However, the cord plasma CRP levels were not significantly different among the study groups. The cord plasma KL-6 levels in patients with atypical BPD were significantly higher in infants with moderate or severe BPD than in infants with mild BPD (median = 88.3 vs. 41.5 U/ml, p = 0.041) and were found to be significantly correlated with the duration of oxygen therapy (r = 0.502, p = 0.024). CONCLUSIONS: The present study shows that cord plasma KL-6, a specific lung injury marker, is increased and objectively reflects disease severity in atypical BPD.
- 1661-7819 (Electronic)
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