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Simultaneous multiple breath washout and oxygen-enhanced magnetic resonance imaging in healthy adultsLung function testing and lung imaging are commonly used techniques to monitor respiratory diseases, such as cystic fibrosis (CF). The nitrogen (N2) multiple-breath washout technique (MBW) has been shown to detect ventilation inhomogeneity in CF, but the underlying pathophysiological processes that are altered are often unclear.
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Airway macrophages display decreased expression of receptors mediating and regulating scavenging in early cystic fibrosis lung diseaseCystic fibrosis (CF) airway disease is characterized by chronic inflammation, featuring neutrophil influx to the lumen. Airway macrophages (AMs) can promote both inflammation and resolution, and are thus critical to maintaining and restoring homeostasis. CF AM functions, specifically scavenging activity and resolution of inflammation, have been shown to be impaired, yet underlying processes remain unknown.
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Prevalence of tracheobronchomalacia is higher than previously reported in children with cystic fibrosisTracheobronchomalacia (TBM) is estimated to be present in 1 in 2100 children. Previous reports suggest the prevalence is higher in children with cystic fibrosis (CF). This has clinical implications with potential to influence airway clearance and lung health.
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BEAT CF pulmonary exacerbations core protocol for evaluating the management of pulmonary exacerbations in people with cystic fibrosisCystic fibrosis (CF) is a rare, inherited, life-limiting condition predominantly affecting the lungs, for which there is no cure. The disease is characterized by recurrent pulmonary exacerbations (PEx), which are thought to drive progressive lung damage. Management of these episodes is complex and generally involves multiple interventions targeting different aspects of disease. The emergence of innovative trials and use of Bayesian statistical methods has created renewed opportunities for studying heterogeneous populations in rare diseases.
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Survival of people with cystic fibrosis in AustraliaSurvival statistics, estimated using data from national cystic fibrosis (CF) registries, inform the CF community and monitor disease progression. This study aimed to estimate survival among people with CF in Australia and to identify factors associated with survival.
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The effect of azithromycin on structural lung disease in infants with cystic fibrosis (COMBAT CF): a phase 3, randomised, double-blind, placebo-controlled clinical trialStructural lung disease and neutrophil-dominated airway inflammation is present from 3 months of age in children diagnosed with cystic fibrosis after newborn screening. We hypothesised that azithromycin, given three times weekly to infants with cystic fibrosis from diagnosis until age 36 months, would reduce the extent of structural lung disease as captured on chest CT scans.
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Macrophage PD-1 associates with neutrophilia and reduced bacterial killing in early cystic fibrosis airway diseaseMacrophages are the major resident immune cells in human airways coordinating responses to infection and injury. In cystic fibrosis, neutrophils are recruited to the airways shortly after birth, and actively exocytose damaging enzymes prior to chronic infection, suggesting a potential defect in macrophage immunomodulatory function.
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Posaconazole-induced hypertension in children with cystic fibrosisPosaconazole is a triazole antifungal with a broad spectrum of activity against moulds including Aspergillus spp. Emerging data suggest posaconazole may be effective in the treatment of allergic bronchopulmonary aspergillosis complicating cystic fibrosis.
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Cystic fibrosis clinical isolates of aspergillus fumigatus induce similar muco-inflammatory responses in primary airway epithelial cellsAspergillus is increasingly associated with lung inflammation and mucus plugging in early cystic fibrosis disease during which conidia burden is low and strains appear to be highly diverse. It is unknown whether clinical Aspergillus strains vary in their capacity to induce epithelial inflammation and mucus production.
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Early surveillance of infants and preschool children with cystic fibrosisSensitive and non-invasive surveillance tools are needed for the clinical management of infants and preschool children with cystic fibrosis (CF). The lung clearance index from the multiple breath washout and functional and morphological outcomes from magnetic resonance imaging provide promising alternatives to current gold standard techniques. Early detection and treatment of lung disease during this important period offers the opportunity to improve the quality of life for individuals with CF.