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  • Title: Inhaled corticosteroid therapy reduces cytokine levels in sputum from very preterm infants with chronic lung disease.
    Author: Honda R, Ichiyama T, Sunagawa S, Maeba S, Hasegawa K, Furukawa S.
    Journal: Acta Paediatr; 2009 Jan; 98(1):118-22. PubMed ID: 19086942.
    Abstract:
    AIM: To evaluate the effects of inhaled corticosteroid therapy and high-frequency oscillatory ventilation (oscillation) on preterm infants with chronic lung disease (CLD). METHODS: Ten infants with CLD who received inhaled corticosteroid therapy were enrolled. Week 1 was defined as the first week of therapy. The concentrations of interleukin (IL)-8, tumour necrosis factor-alpha (TNF-alpha), IL-1beta, IL-6, IL-10 and IL-12p70 in serial sputum specimens from the infants were determined using a cytometric bead array. RESULTS: The sputum concentrations of IL-8 obtained from the infants during week 3-4 were significantly lower than those obtained before therapy and during week 1-2. The sputum concentrations of TNF-alpha, IL-6 and IL-10 during week 3-4 were significantly lower than the concentrations during week 1-2. The ratio of IL-8 levels during week 1-2 to those before therapy in infants who received oscillation (n = 4) was significantly lower than in those who received intermittent mandatory ventilation (n = 6). CONCLUSION: Inhaled corticosteroids may be associated with a decrease in pro-inflammatory cytokine levels in sputum from infants with CLD from 2 weeks after the start of therapy. Our further investigations suggest that therapy with oscillation modulated airway inflammation earlier than therapy with intermittent mandatory ventilation.
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