Objective To explore children infected immune functional state and change .Methods using nephelometry in 58 ca‐ses of EBV‐IgM positive children serum immunoglobulin ,T lymphocyte subsets CD3+ ,CD4+ ,CD8+ ,CD19+ blood flow cytometry peripheral detection at the same period ,50 cases of healthy children as control group in the same index .Results EBNA‐IgG nega‐tive group of children IgG ,IgA was EBNA‐IgG positive group and control group decreased significantly ,the difference was statisti‐cally significant(P< 0 .05) ,The EBNA‐IgG negative group ,EBNA‐IgG positive group serum total IgM and control group com‐pared ,the difference was not statistically significant (P> 0 .05) .The EBNA‐IgG negative group of CD3+ ,CD4+ ,CD4+ /CD8+ , CD19+ in children with EBNA‐IgG positive group and control group decreased significantly ,the difference was statistically signifi‐cant(P<0 .05) ,while CD8+ was the EBNA‐IgG positive group and the control group increased significantly ,the difference was sta‐tistically significant(P<0 .05) .Conclusion EBNA‐IgG positive immune function of children with close to healthy group is better than that of EBNA‐IgG negative group ,the emergence of EBNA‐IgG status on immune function of children do preliminary assess‐ment ,through the detection of immunoglobulin and T cell subsets ,B lymphocyte ratio can understand the immune state of children′s infection ,further evaluation of infection phase .

Objective To study the role of serum Hcy level change in predicting the effects of pemetrexed (PEM ) chemotherapy for treating the patients with advanced lung adenocarcinoma .Methods Fifty‐seven cases of lung adenocarcinoma treated by the PEM chemotherapy were retrospectively analyzed .The fasting venous blood was collected for detecting serum Hcy level before chemotherapy and at the end of 2‐week chemotherapy .The clinical characteristics ,Hcy level before and after chemotherapy and the relation between the Hcy level with clinical effect were statistically analyzed .Results In the therapeutic effects evaluated by the im‐aging examination during treatment process ,there were no case of complete remission (CR) ,19 cases of partial remission (PR) ,22 cases of stable diseases(SD) and 16 cases of progressed diseases(PD) ,the objective response rate(ORR) was 33 .3% and disease control rate (DCR) was 71 .9% .Different clinical factors had no significant influence on the efficacy of PEM chemotherapy (P>0 .05) .In comparing the influence of Hcy level and Hcy level change on the effect of PEM chemotherapy ,the results showed that serum Hcy level before treatment had no obvious influence on curative effect ,DCR in the patients with normal serum Hcy level after treatment was significant higher than that with abnormal Hcy level ,ORR and DCR in the patients with decreased Hcy level after chemotherapy were significantly higher than those with increased Hcy level (P<0 .05) .Conclusion Monitoring the serum Hcy lev‐el change during the PEM chemotherapeutic process in the patients with advanced lung adenocarcinoma may be used in the predic‐tion of the chemotherapeutic effect .