Objective: To detect the expression levels of interleukin-4 (IL-4) and peroxisome proliferator activated receptor-γ (PPAR-γ) in serum of patients with allergic rhinitis, and analyze their correlation with the activity of allergic rhinitis. Methods: A total of 95 patients with allergic rhinitis treated in the Department of Otolaryngology Head and Neck Surgery of our hospital from March 2018 to July 2020 were selected as the research objects, including 31 cases in mild group, 35 cases in moderate group and 29 cases in severe group; at the same time, 90 patients with non allergic rhinitis confirmed by physical examination in our hospital were selected as the control group. Enzyme linked immunosorbent assay (ELISA) was used to detect the expression levels of IL-4 and PPAR-γ in serum; endpoint nephelometry was used to detect the level of serum IgE; Pearson method was used to analyze the relationship between serum IL-4, PPAR-γ and their relationship with IgE, Score For Allergic Rhinitis (SFAR), Visual Analogue Scale (VAS). Results: Compared with those in the control group, the level of serum IL-4 and IgE were significantly higher and the level of PPAR-γ was significantly lower in the allergic rhinitis group (P<0.05). There was no significant difference in serum IL-4, PPAR-γ and IgE levels between patients with intermittent allergic rhinitis and patients with persistent allergic rhinitis (P>0.05). There were significant differences in serum IgE, IL-4, PPAR-γ levels, SFAR and VAS scores among patients with allergic rhinitis of different disease activity, with the increase of disease activity, the levels of serum IgE and IL-4, scores of SFAR and VAS were significantly increased, while the level of PPAR-γ was significantly decreased (P<0.05). Pearson analysis showed that serum IL-4 and PPAR-γ levels were negatively correlated (r=-0.387, P<0.05), serum IgE, SFAR and VAS scores were positively correlated with IL-4 level, and negatively correlated with PPAR-γ level (P<0.05). Conclusion: The expression levels of serum IL-4 and PPAR-γ in patients with allergic rhinitis are related to disease activity, and they may participate in the occurrence and development of allergic rhinitis. |
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