机构地区:[1]山西医科大学公共卫生学院流行病学教研室,山西太原030001 [2]太原市第三人民医院妇产科,山西太原030001
出 处:《中国临床研究》2017年第2期154-157,共4页Chinese Journal of Clinical Research
基 金:国家自然科学基金(81573212;81072341);山西省重点学科建设项目(C01201007);山西医科大学青年基金(02201407);山西省回国留学人员科研项目(2008-50)
摘 要:目的通过检测HBs Ag阳性母亲分娩的新生儿外周血中T/B淋巴细胞亚群水平,分析HBV宫内传播对新生儿免疫功能的影响。方法选择2011年1月至2014年12月太原市第三人民医院妇产科HBs Ag阳性母亲分娩新生儿220例作为研究对象。采用酶联免疫吸附试验(ELISA)方法检测HBs Ag阳性母亲及新生儿外周血HBV血清学标志物,实时荧光定量PCR检测HBs Ag阳性母亲及新生儿外周血HBVDNA含量,流式细胞术(FCM)检测新生儿外周血T/B淋巴细胞亚群水平。新生儿出生24 h内静脉血HBs Ag阳性或/和HBVDNA值>103copies/ml者判定为发生HBV宫内传播。结果 HBs Ag阳性母亲分娩新生儿HBV宫内传播发生率为11.36%。宫内传播新生儿组(n=25)与非宫内传播新生儿组(n=195)外周血T淋巴细胞亚群(CD3^+、CD4^+、CD8^+)相对计数[(60.71±13.64)%vs(60.04±15.06)%,(43.37±12.69)%vs(43.77±13.39)%,(15.03±6.32)%vs(15.14±6.14)%],CD4^+/CD8^+[(3.42±1.66)%vs(3.33±1.71)%]及B淋巴细胞中CD19^+相对计数[(6.64±3.63)%vs(6.39±3.99)%]差异均无统计学意义(P均>0.05)。依据HBs Ag阳性母亲分娩新生儿外周血HBVDNA不同载量,分为高载量组(HBVDNA≥107copies/ml)、低载量组(HBVDNA<107copies/ml)、阴性组(HBVDNA<103copies/ml)。随着HBs Ag阳性母亲分娩新生儿外周血HBVDNA载量增加,新生儿外周血CD3^+、CD4^+、CD8^+相对计数及CD4^+/CD8^+值逐渐增高,CD19^+相对计数比例逐渐减低。高载量组新生儿CD3^+、CD4^+相对计数高于低载量组和阴性组,差异有统计学意义(P均<0.05);3组新生儿CD8^+、CD19^+相对计数及CD4^+/CD8^+比较差异均无统计学意义(P均>0.05)。结论随着HBVDNA载量的增加,HBs Ag阳性母亲分娩的新生儿外周血中T淋巴细胞亚群(CD3^+、CD4^+)比例上升,新生儿细胞免疫功能处于活跃状态,易出现自身免疫反应,应采取相应措施防止自身免疫性疾病的发生。Objective To analyze the influence of hepatitis B virus( HBV) intrauterine transmission on neonates immune functions through detecting T/B lymphocyte subsets levels in peripheral blood of HBs Ag positive mothers delivered-neonates. Methods A total of 220 HBs Ag positive mothers delivered-neonates in department of gynecology and obstetrics of the third people' s hospital of Taiyuan from January 2011 to December 2014 were selected as research objects. Enzyme linked immunosorbent assay( ELISA) was used to detect HBV serological markers in peripheral blood of HBs Ag positive mothers and neonates. Real-time fluorescence quantitative PCR was used to detect HBVDNA contents in peripheral blood of HBs Ag positive mothers and neonates. Flow cytometry( FCM) was used to detect T/B lymphocyte subsets levels in neonates peripheral blood. The diagnostic criteria of neonate HBV intrauterine transmission was HBs Ag-positive and/or HBVDNA 103copies/ml in venous blood within 24 hours of birth. Results The incidence of HBV intrauterine transmission was11. 36%. There were no significant differences in relative counts of T-lymphocyte subsets( CD3~+,CD4~+,CD8~+) in peripheral blood[( 60. 71 ± 13. 64) % vs( 60. 04 ± 15. 06) %,( 43. 37 ± 12. 69) % vs( 43. 77 ± 13. 39) %,( 15. 03 ± 6. 32) %vs( 15. 14 ± 6. 14) % ],CD4~+/CD8~+in peripheral blood [( 3. 42 ± 1. 66) % vs( 3. 33 ± 1. 71) %]and relative count of CD19~+in B-lymphocytes in peripheral blood[( 6. 64 ± 3. 63) % vs( 6. 39 ± 3. 99) %]between groups of intrauterine transmission newborns( n = 25) and non intrauterine transmission newborns( n = 195)( all P 0. 05). According to HBVDNA load in peripheral blood,the HBs Ag-positive mothers delivered-neonates were divided into high load group( HBVDNA≥107copies/ml),low load group( HBVDNA 107 copies/ml) and negative group( HBVDNA 103 copies/ml). With the increase of HBVDNA load in peripheral blood of HBs Ag-positive mothers delivered-neonate
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