RÉSUMÉ
Objective To explore the value of serum circulating immune complex C 1q(CIC-C1q),comple-ment C3and C4in the diagnosis and treatment of patients with rheumatoid arthritis(RA).Methods From June 2014 to June 2016,60 cases of rheumatoid arthritis treated in Luoyang Central Hospital Affiliated to Zhengzhou University were selected as the observation group.Meanwhile,60 cases who under went healthy physical examination were chosen as control group.The levels of CIC-C1q,C3and C4in serum of two groups were detected by C1q solid-phase ELISA and immunoturbidimetry respectively,and the differences were com-pared.Results The level of CIC-C1q in the observation group was significantly higher than that in the control group,the level of C4was lower than control group,and there was statistical significance in the differences (P<0.05).But there was no statistical difference between the two groups of the C3level(P>0.05).The level of CIC-C1q was ascending in control group,quiescent phase RA group and active phase RA group,the statisti-cal significance was existed(P<0.05).The level of C4was successively decrease in the three groups,and there was a statistically significant difference(P<0.05).There was no significant difference in the level of C3the three groups(P> 0.05).Conclusion The detection of CIC-C1q and C4has a good application value in the treatment evaluation for patients with RA.