Measurement of some serum cytokines in nasal polyp and evaluation of its correlation with disease severity.

Purpose: Nasal polyp is originating from the nasal mucosa or paranasal sinus mucosa. In our study, it was aimed to investigate the possible effects of inflammatory cytokines Interleukin-13 (IL-13), IL-25, IL-33 and Syndecan-1 (SDC-1) in the pathogenesis process of nasal polyp and relationship between these parameters and disease severity.

Methods: Our study was designed as a prospective case-control study. Patients diagnosed with nasal polyp were included in the patient group. The control group comprised volunteers with age and gender compatibility who does not have the disease. IL-13, IL-25, IL-33 and SDC-1 levels were detected in serum samples using enzyme-linked immunosorbent assay method. Nasal polyp disease severity was evaluated by means of "Sino-Nasal Outcome Test-22", "Lund-Mackay Score" and "Lund-Kennedy Score".

Results: In this study, 35 patients, 29 controls, a total of 64 participants were included. Our evaluation revealed that all cytokine levels in the patient group were statistically significantly higher than the control group (p < 0.05). However, there was no correlation found between scoring methods and cytokine levels (p > 0.05).

Conclusion: The increase in cytokine levels in the patient group suggested that cytokine-mediated inflammation processes may be effective in nasal polyp pathogenesis.