2.4 Cytometric Bead Array
CBA was used to detect chemokine content in all polyps and mucosal specimens. The selected markers included neutrophil chemokines: IL-6, IL-8, IFN-γ, MCP-1; chemotactic factor for eosinophil: IL-4, IL-5, IL-13, RANTES, GMCSF and IgE. Testing was performed using the BD kit.