Interleukin-4 and interleukin-13 concentrations in bronchoalveolar lavage fluid in neonates with respiratory distress syndrome and concurrent ventilator-associated pneumonia
XIA Yao-Fang, LIU Cui-Qing, SHI Hui-Ju, MA Li.
Department of Neonatology, Hebei Province Children's Hospital, Shijiazhuang 050031, China.
Abstract OBJECTIVE: To study the concentrations of IL-4 and IL-13 in bronchoalveolar lavage fluid (BALF) in neonates with respiratory distress syndrome (RDS) and concurrent ventilator-associated pneumonia (VAP). METHODS: Sixty-eight neonates with RDS undergoing mechanical ventilation for over 48 hrs were enrolled. IL-4 and IL-13 levels in BALF were measured using ELISA 1, 72 and 96 hrs after mechanical ventilation. The results were compared between the neonates with concurrent VAP (n=37) and without (n=31). RESULTS: The levels of BALF IL-4 96 hrs after ventilation in the VAP group (35.34±1.78 ng/mL) were significantly higher than those in the non-VAP group (13.69±2.47ng/mL, P<0.05). The levels of BALF IL-13 96 hrs after ventilation in the VAP group (33.74±2.74 ng/mL) also increased significantly compared with those in the non-VAP group (13.50±3.81 ng/mL) (P<0.05). There were significant differences in BALF IL-4 and IL-13 levels between 1 hr and 96 hrs in the VAP group (P<0.05).ConclusionsBALF IL-4 and IL-13 levels increase in neonates with RDS and concurrent VAP. IL-4 and IL-13 may involve in the regulation of the inflammatory immue response.［Chin J Contemp Pediatr, 2009, 11 (8):645-648］
XIA Yao-Fang,LIU Cui-Qing,SHI Hui-Ju et al. Interleukin-4 and interleukin-13 concentrations in bronchoalveolar lavage fluid in neonates with respiratory distress syndrome and concurrent ventilator-associated pneumonia[J]. 中国当代儿科杂志, 2009, 11(08): 645-648.
XIA Yao-Fang,LIU Cui-Qing,SHI Hui-Ju et al. Interleukin-4 and interleukin-13 concentrations in bronchoalveolar lavage fluid in neonates with respiratory distress syndrome and concurrent ventilator-associated pneumonia[J]. CJCP, 2009, 11(08): 645-648.
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