ABSTRACT
Objective To investigate the expression of serum Neurensin 2 (NRSN2) in patients with nasopharyngeal carcinoma (NPC),and to analyze its relationships with epstein-barr virus (EBV) antibody and EBV-DNA.Methods 120 patients with NPC admitted to our hospital from April 2016 to May 2018 were selected as the study group,and 56 healthy people in the physical examination center were selected as the control group.Enzyme linked immunosorbent assay (ELISA) was used to detect the expressions of serum viral capsid antigen-IgA (VCA-IgA),nuclear related tumor antigen-IgA (EBNA-IgA) and early antigen-IgG (EA-IgG).The expression of serum NRSN2 and EBV-DNA were detected by fluorescence quantitative polymerase chain reaction (qPCR).Receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of serum NRSN2 level for NPC.Spearman was used to analyze the relationship between serum NRSN2 and EBV antibody with EBV-DNA in nasopharyngeal carcinoma,multivariate logistic regression analysis was used to analyze the risk factors of NPC.Results The positive rates of serum VCA-IgA,EBNA-IgA and EA-IgG in the study group were significantly higher than those in control group (P ＜0.05);the level of serum NRSN2 and the positive expression rate of EBV-DNA in the study group was significantly higher than that in the control group (P ＜ 0.05);ROC curves showed that the area under curve (AUC) of serum NRSN2 level in diagnosing NPC disease was 0.759,with sensitivity 63.33％,specificity 80.36％;there were significant positive correlations between serum NRSN2 with VCA-IgA,EBNA-IgA,EA-IgG and EBV-DNA in NPC patients (P ＜ 0.05);multivariate regression analysis showed that VCA-IgA,EBNA-IgA,EA-IgG,EBV-DNA and NRSN2 expressions were supportive predictive value for diagnostic NPC (P ＜ 0.05).Conclusions Up-regulation of serum NRSN2 levels in NPC patients is positively correlated with serum VCA-IgA,EBNA-IgA,EA-IgG and EBV-DNA levels,which may provide a reference for the prediction,diagnosis and treatment of NPC.
ABSTRACT
Objective@#To investigate the expression of serum Neurensin 2 (NRSN2) in patients with nasopharyngeal carcinoma (NPC), and to analyze its relationships with epstein-barr virus (EBV) antibody and EBV-DNA.@*Methods@#120 patients with NPC admitted to our hospital from April 2016 to May 2018 were selected as the study group, and 56 healthy people in the physical examination center were selected as the control group. Enzyme linked immunosorbent assay (ELISA) was used to detect the expressions of serum viral capsid antigen-IgA (VCA-IgA), nuclear related tumor antigen-IgA (EBNA-IgA) and early antigen-IgG (EA-IgG). The expression of serum NRSN2 and EBV-DNA were detected by fluorescence quantitative polymerase chain reaction (qPCR). Receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of serum NRSN2 level for NPC. Spearman was used to analyze the relationship between serum NRSN2 and EBV antibody with EBV-DNA in nasopharyngeal carcinoma, multivariate logistic regression analysis was used to analyze the risk factors of NPC.@*Results@#The positive rates of serum VCA-IgA, EBNA-IgA and EA-IgG in the study group were significantly higher than those in control group (P<0.05); the level of serum NRSN2 and the positive expression rate of EBV-DNA in the study group was significantly higher than that in the control group (P<0.05); ROC curves showed that the area under curve (AUC) of serum NRSN2 level in diagnosing NPC disease was 0.759, with sensitivity 63.33%, specificity 80.36%; there were significant positive correlations between serum NRSN2 with VCA-IgA, EBNA-IgA, EA-IgG and EBV-DNA in NPC patients (P<0.05); multivariate regression analysis showed that VCA-IgA, EBNA-IgA, EA-IgG, EBV-DNA and NRSN2 expressions were supportive predictive value for diagnostic NPC (P<0.05).@*Conclusions@#Up-regulation of serum NRSN2 levels in NPC patients is positively correlated with serum VCA-IgA, EBNA-IgA, EA-IgG and EBV-DNA levels, which may provide a reference for the prediction, diagnosis and treatment of NPC.