The clinical significance of the detection of serum uric acid and serum cytokine levels in patients with chronic obstructive pulmonary disease

Abstract

Objective To investigate the clinical significance of the detection of the levels of serum uric acid (UA) and serum eytokine tunor necrosis factor-oα (TNF-α),soluble intercellular adhesion molecule-1 (sICAM-1),interleukin (IL)-6 and IL-8 in patients with chronic obstructive pulmonary disease (COPD).Methods UA of 40 healthy people (control group) and 158 COPD patients (COPD group) in acute exacerbation and remission stage was detected respectively by automatic biochemical analyzer,and the levels of serum TNF-α,sICAM-1,IL-6 and IL-8 were detected by ELISA.The percentage of first second forced expiratory volume in expected value (FEV1％) of COPD patients in acute exacerbation and remission stage were detected.Results TNF-α,sICAM-1,IL-6,IL-8 and UA of COPD group in acute exacerbation were significantly higher than those of control group (P＜ 0.01 ),and FEV1％ was significantly lower than that of control group (P＜ 0.01 ).TNF-α,sICAM-1 and UA of COPD group in remission stage were significantly higher than those of control group (P ＜0.01 or ＜0.05),IL-6 and IL-8 had no statistical significance compared with those of control group (P ＞ 0.05),and FEV1％ was significantly lower than that of control group (P ＜ 0.01 ).Correlation analysis showed that TNF- α,sICAM-1,IL-6,IL-8,UA of COPD patients in acute exacerbation were negatively conrelated with FEV1％ (r =-0.681,-0.579,-0.545,-0.652,-0.357,respectively,P ＜ 0.01 or ＜ 0.05 ).In remission stage,TNF- α,sICAM-1,IL-6 and IL-8 of COPD patients were negatively correlated with FEV1％ (r =-0.623,-0.335,-0.349,-0.623,P＜0.01 or ＜0.05),and UA had no significant correlation with FEV1％ (r =-0.092,P ＞0.05).Conclusions The serum UA and cytokines TNF-α,sICAM-1,IL-6,IL-8 are involved in the progression of COPD and correlated with lung function.They can be used as the judge indexes of COPD. Key words: Pulmonary disease,chronic obstructive; Uric acid; Cytokines