Subjects stratified into four groups using the median sputum neutrophil

Diagnostic Value of NLR in COVID-19 Patients

Biomarker surrogates do not accurately predict sputum eosinophil and neutrophil percentages in asthmatic subjects - ScienceDirect

Elastase activity on sputum neutrophils correlates with severity of lung disease in cystic fibrosis

Host protease activity classifies pneumonia etiology

Longitudinal Impact of Sputum Inflammatory Phenotypes on Small Airway Dysfunction and Disease Outcomes in Asthma - ScienceDirect

Leptin/obR signaling exacerbates obesity-related neutrophilic airway inflammation through inflammatory M1 macrophages, Molecular Medicine

Bronchial inflammation biomarker patterns link humoral immunodeficiency with bronchiectasis‐related small airway dysfunction - Zissler - 2022 - Clinical & Experimental Allergy - Wiley Online Library

IL18R1-Related Molecules as Biomarkers for Asthma Severity and Prognostic Markers for Idiopathic Pulmonary Fibrosis

Plasma proteins elevated in severe asthma despite oral steroid use and unrelated to Type-2 inflammation

Evaluation of active neutrophil elastase in sputum of bronchiectasis and cystic fibrosis patients: A comparison among different techniques - ScienceDirect

Correlation Between Neutrophil-Lymphocyte Ratio, Platelets-Lymphocyte Ratio, and High-Resolution CT in Patients with COVID-19 - European Medical Journal

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Sputum cell characteristics, CXC3R ligands, and IL-8 stratified by