RESUMO
Objective@#To determine the changes in peripheral plasma concentrations of interleukin-10 (IL-10), interleukin -12 (IL-12) and interfoeron-γ(IFN-γ) in the patients with chronic hepatitis B virus (HBV) infection and their correlations with HBV infection stage or HBV DNA load of HBV carriers.@*Methods@#Data of 135 patients with chronic HBV infection from March 2016 to March 2017 were collected, the patients included 32 chronic HBV carriers, 61 with chronic hepatitis and 42 with cirrhosis. Forty healthy subjects served as controls. The concentrations of IL-10, IL-12 and IFN-γ were determined using enzyme-linked immunosorbent assay (ELISA). Correlation analysis was performed using the Pearson correlation test, which was performed to analyze the correlation between IL-10, IL-12, IFN-γ and HBV infection stage, HBV DNA load of HBV carriers.@*Results@#Compared with those in healthy controls, plasma IL-10 and IL-12 levels in patients with chronic hepatitis and cirrhosis increased significantly (F=22.06, 15.67, P=0.013, 0.021), plasma IL-10 and IL-12 levels in cirrhosis cases were higher than those in chronic hepatitis (all P<0.001), plasma IL-10 and IL-12 levels in chronic hepatitis were higher than those in chronic HBV carriers (all P<0.001). Plasma IFN-γ level in chronic HBV carriers, chronic hepatitis and cirrhosis were significantly higher than those in healthy controls (F=18.36, P=0.017). There were statistically significant differences in IFN-γ levels among the three groups in the chronic HBV carriers, chronic hepatitis and cirrhosis. IL-10, IL-12 and IFN-γ levels of the low, medium and high HBV DNA load groups were statistically significant (all P<0.05). There was no correlation between IL-10 and HBV DNA. IFN-γ, IL-12 and HBV DNA load were negatively correlated. There was no correlation between IL-10 and IFN-γ (r=0.103, P>0.05), IL-12 and IFN-γ were significantly positively correlated (r=0.687, P<0.05).@*Conclusions@#IL-10, IL-12 and IFN-γ may play an important role in the chronic HBV infection.