Expressions and clinical significance of interleukin-1β and cyclooxygenase-2 in serum and synovia of patients with gouty arthritis

Abstract

Abstract Background: To explore the expressions and clinical significance of interleukin-1β (IL-1β) and cyclooxygenase-2 (COX-2) in serum and synovia of patients with gouty arthritis (GA). Materials and Methods: A total of 110 GA patients hospitalized from January 2016 to September 2019 were selected as observation group, with 55 at remission stage (observation group I) and 55 at acute attack stage (observation group II). Another 55 healthy volunteers were selected as control group. The correlations of IL-1β and COX-2 with uric acid (UA) were explored by Spearman’s analysis. IL-1β and COX-2 expression levels were compared at different time points after treatment. Results: IL-1β, COX-2 and UA levels of patients were significantly higher in observation group I and II than those in the control group, and higher in the observation group II than those in observation group I. IL-1β and COX-2 were positively correlated with UA (P<0.05). ROC curve analysis showed that the optimal cut-off values of IL-1β and COX-2 for predicting GA were 18.23 and 9.12 pg/mL, and AUC values were 0.702 and 0.714 (P<0.001), respectively. On admission and after treatment for 3, 7, and 10 days, IL-1β and COX-2 levels of observation group II significantly exceeded those of observation group I (P<0.05). Compared with the efficacy group, after treatment for 14 days, IL-1β and COX-2 levels in serum and synovia significantly increased in the non-efficacy group (P<0.05). Conclusion: IL-1β and COX-2 levels in serum and synovia of GA patients are evidently higher than those in the control group, which rise with the aggravation of disease.