ArticleBMC pulmonary medicine2024
Release of sputum neutrophil granules is associated with pulmonary function and disease severity in childhood asthma.
Article in BMC pulmonary medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Type 2-low Asthma: Epidemiology, Multiomics, and Emerging Therapies.Current allergy and asthma reports · 2026Review
- Neutrophil Secretory Proteins Inhibit Calcium Oxalate Crystallisation and Crystal Growth, but Promote Crystal Aggregation.Immunology · 2026Article
- A Multilevel Redox-Based Prognostic Model for Asthma Severity: From Genotype to Serum Biomarkers.Biomedicines · 2026Review
- Harnessing neutrophils for tissue repair and regeneration: mechanisms, biomaterial engineering strategies and translational potential.Regenerative biomaterials · 2026Review
- From gut microbiota dysbiosis to immune dysregulation: pathogenic mechanisms and emerging therapeutic perspectives in pediatric asthma.Frontiers in immunology · 2026Review
- Elevated lipocalin-2, matrix matalloproteinase-9 and mmp-9/lcn-2 complex serum levels in hospitalized infants with severe bronchiolitis.Scientific reports · 2025Article
- Neutrophils and NETs in Pathophysiology and Treatment of Inflammatory Bowel Disease.International journal of molecular sciences · 2025Review
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Authors and funding
7 authors.
Funding
Abstract
backgroundMyeloperoxidase (MPO) and human neutrophil lipocalin or neutrophil gelatinase-associated lipocalin (HNL/NGAL) are stored in neutrophil granulocytes and secreted upon activation of the cells. They have been proposed to reflect the degree of inflammation in the airways. However, their role as potential markers of disease severity in childhood asthma remains unknown. This study investigated the relationship between the expression of MPO and HNL/NGAL and childhood asthma.
methodsA total of 83 pediatric patients with asthma and 59 controls were enrolled. Using enzyme-linked immunosorbent assays, the human MPO and HNL/NGAL levels were measured in sputum supernatants. Assessments including spirometry, methacholine challenge test, and atopy test were conducted.
resultsNo difference in sputum neutrophil counts was observed between pediatric patients with asthma and controls. However, sputum MPO and HNL/NGAL levels were significantly higher in patients with asthma than in controls (p = 0.021 and p < 0.001, respectively), especially in patients with moderate-to-severe persistent asthma. In patients with asthma, sputum MPO and HNL/NGAL levels showed a positive correlation with sputum neutrophil counts (MPO, r = 0.433, p < 0.001; HNL/NGAL, r = 0.584, p < 0.001) and with each other (r = 0.628, p < 0.001). Moreover, sputum HNL/NGAL level demonstrated better ability to accurately reflect current pulmonary function, airway inflammation, and limitations than MPO level in this study.
conclusionsSputum MPO and HNL/NGAL levels, which reflect neutrophil activation in airways, were increased in pediatric patients with asthma. Moreover, sputum MPO and HNL/NGAL may serve as appropriate assessment indicators of asthma severity in pediatric patients.
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