ABSTRACT
Objective To explore the diagnostic value of the quantitative detection of serum NF-κB and TNF-α in children with Mycoplasma pneumoniae Pneumonia(MPP).Methods 150 MPP patients were enrolled in this study including 75 with wheeze and 75 without wheeze,and then collected the blood specimens.75 healthy children were recruited to the control group (NC group).The levels of NF-κB and TNF-α in different groups were detected by qRT-PCR.The performance of NF-κB and TNF-α were evaluated by receiver operating characteristic curves (ROC) and the area under the curve (AUC) (95 ％ CI).Results The relative expression of NF-κB and TNF-α in MPP children with wheeze were 3.09±0.15 and 2.14±0.11,respectively.They were significantly higher than NC group (t=11.03,6.987,P＜0.05).NF-κB and TNF-α in MPP children without wheeze were also significantly higher than control group (t =6.873,7.406,P＜ 0.05).The relative expression of NF-κB and TNF-α in children with wheeze were significantly higher than children without wheeze.The detection of NF-κB yielded an area under the curve of ROC of 0.826 5 (95％CI:0.772 8～0.880 2) in discriminating MPP patients from healthy group.The TNF-α was 0.818 3 (95％ CI:0.765 1～0.871 6) in discriminating MPP patients from healthy group.Conclusion The relative expression of NF-κB and TNF-α in children with MPP was significantly higher than that in NC group,NF-κB and TNF-a may prove to be non-invasive biomarkers for the auxiliary diagnosis of MPP.