儿童感染性肺炎患者血液中炎症因子,ECP,EOS,IgE,VEGF及其受体检测与临床意义分析

Detection of Inflammatory Factors,ECP,EOS,IgE,VEGF and Its Receptors in Children with Infectious Pneumonia

目的分析肿瘤坏死因子-α(TNF-α)、白细胞介素-5(IL-5)、白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、嗜酸性细胞阳离子蛋白(ECP)、嗜酸性粒细胞(EOS)、免疫球蛋白E(IgE)、血管内皮生长因子(VEGF)及其受体在感染性肺炎患儿血清中检测的临床意义。方法选择2016年3月~2017年3月来连云港市妇幼保健院就诊的80例感染性肺炎患儿,将其纳入观察组,按照病原体差异,分为病毒感染组、支原体感染组及细菌感染组。同时选择30例健康儿童作为对照组。采用全自动血细胞分析仪测定各组受试者血液中EOS数量,酶联免疫吸附测定法(ELISA)检测血清中TNF-α,IL-5,IL-6,IL-8,ECP,VEGF,VEGF-R1和VEGF-R2的水平,免疫散射比浊法测定血清中IgE的水平。结果观察组患儿血液中TNF-α,IL-5,IL-6,IL-8,ECP,VEGF,VEGF-R1,VEGF-R2,EOS及IgE的水平显著高于对照组儿童,差异均有统计学意义(t=2.325~3.593,P<0.05)。细菌感染组患儿血清中的TNF-α,IL-5,IL-6和IL-8水平显著高于病毒感染组及支原体感染组,差异有统计学意义(P<0.05)。支原体感染组患儿血清中的VEGF,VEGF-R1和VEGF-R2水平则显著高于细菌感染组与病毒感染组,差异有统计学意义(P<0.05)。血清IgE水平及外周血中EOS数量在细菌感染组、病毒感染组及支原体感染组中的差异无统计学意义(P>0.05)。结论血清TNF-α,IL-5,IL-6和IL-8可作为细菌感染性肺炎与病毒感染性肺炎及支原体感染性肺炎的鉴别指标。

Objective To analyse the clinical significance of（IL-5）,interleukin-6（IL-6）,interleukin-8（IL-8）,eosinophil cationic protein（ECP）,eosinophil（EOS）,immunoglobulin E（IgE）,vascular endothelial growth factor（VEGF）and its receptor in serum of children with infectious pneumonia.Methods 80 children with infectious pneumonia were enrolled in Lianyungang Maternal and Child Health Hospital from March 2016 to March 2017,and were included in the observation group.According to the pathogen type,these children in the observation group were divided into virus group,mycoplasma infection group and bacterial infection group.At the same time,30 healthy children were selected as the control group.The levels of TNF-α,IL-5,IL-6,IL-8,ECP,VEGF,VEGF-R1 and VEGF-R2 in serum were measured by enzyme-linked immunosorbent assay（ELISA）.The levels of EOS in blood were measured by automatic blood cell analyzer and the level of lgE in serum was detected by immunoturbidimetric turbidimetric assay.Results The levels of TNF-α,IL-5,IL-6,IL-8,ECP,VEGF,VEGF-R1,VEGF-R2,EOS and IgE in the blood of the observation group were significantly higher than those in the control group（t=2.325-3.593,all P〈0.05）.The levels of TNF-α,IL-5,IL-6 and IL-8 in the serum of the bacterial infection group were significantly higher than those in the virus group and mycoplasma group（all P〈0.05）.The levels of VEGF,VEGF-1 and VEGF-R2 in serum of patients with mycoplasma infection were significantly higher than those in the group of bacterial infection and virus infection（all P〈0.05）.Serum IgE levels and the number of peripheral blood EOS in the bacterial infection group,viral infection group and mycoplasma infection group had no significant difference（P〈0.05）.Conclusion The serum levels of TNF-α,IL-5,IL-6 and IL-8 can be used as markers for bacterial infectious pneumonia and viral infectious pneumonia and mycoplasma infectious pneumonia.