反复呼吸道感染患儿血清T细胞亚群及相关细胞因子水平的变化

目的 观察反复呼吸道感染（RRTI）患儿T细胞亚群及相关细胞因子的变化。方法选择符合RRTI诊断标准的患儿和健康儿，应用APAAP酶联法和双抗体夹心法分别检测RRTI患儿及健康儿血清T淋巴细胞亚群和干扰素1（IFN-1）、白细胞介素10（IL-10）、白细胞介素6（IL-6）水平，并进行比较。结果RRTI患儿T淋巴细胞亚群CD3＋、CD4^＋降低，CD8＋增高；患儿血清IL-6（2.5±1．6）ku／L、IL-10（3．1±2．4）ku／L和IFN-γ（12．6±6．4）μg／L水平显著低于健康组[分别为（6．8±4．7）ku／L、（7．4±3．5）ku／L、（21．5±9．7）μg/L]（P〈0．01）。结论RRTI患儿机体的体液和细胞免疫存在着不同程度的功能缺陷。

T cell subsets and the related changes in cytokine in children with recurrent respiratory tract infection

Objectlve To investigate recurrent respiratory tract infection in children with T-cell subsets and related eytokines change.Methods Choose meet the RRTI diagnostic criteria for children and healthy infants,application APAAP double antibody ELISA method and the sandwich method ty detect RRTI other healthy infants and children with the T-lymphocyte subsets and cytokines interferon γ(IFN-γ),interleuldn 10(IL-IO),interleukin 6 (IL-6)levels,and compared,Results Children with recurrent respiratory tract infection of T lymphocyte subsets CD+3,CD+4decreased co;increased serum IL-6(2.5±1.6 ku/L),IL-10(3.1±2.4 ku/L)and IFN-γ(12.6±6.4μg/L)levels were significantly below the healthy group(6.8±4.7 ku/L、7.4±3.5 ku/L、21.5±9.7μg/L)(P＜0.01).Conclusion The boay of the RRTI children humoral and cellular immune existed varying degrees of functional defects.