目的 分析新发活动期全身型幼年特发性关节炎(SJIA)患儿血清细胞因子水平,探讨细胞因子在其发生发展中的作用.方法 采用流式细胞术检测2010年1月至2013年12月新发活动期74例SJIA患儿血清白介素(IL)-2、-4、-6、-10、肿瘤坏死因子(TNF)和γ-干扰素(IFN-γ)水平,202例健康体检儿童为对照组;并同时检测患儿白细胞、中性粒细胞、血红蛋白、血小板、超敏C反应蛋白和血沉等常规实验室指标.结果 74例SJIA患儿的白细胞、中性粒细胞比例、超敏C反应蛋白和血沉等均明显高于正常范围,血小板在正常范围,血红蛋白水平低于正常范围.与健康对照相比,SJIA组患儿血清IL-6明显升高(P<0.01),IL-4、IL-10和TNF明显降低(均P<0.01),IL-2和IFN-γ无明显变化(均P>0.05).SJIA患儿IL-6水平明显升高,血红蛋白明显降低,两者呈负相关(r=-0.244,P<0.05).结论 SJIA患儿血清IL-6水平明显升高,且与贫血呈负相关.
Abstract
Objective To study the changes in serum cytokines levels in children with newly diagnosed active systemic juvenile idiopathic arthritis (SJIA) and to explore the role of cytokines in the development and progression of SJIA. Methods Seventy-four pediatric patients with active SJIA between January 2010 and December 2013 were included in the study. Serum levels of interleukin-2 (IL-2), interleukin-4 (IL-4), interleukin-6 (IL-6), interleukine-10 (IL-10), tumor necrosis factor (TNF), and interferon gamma (IFN-γ) were measured by flow cytometry in these patients. The levels of cytokines were also determined in 202 healthy children as the control group. Routine laboratory parameters including white blood cell (WBC) count, percentage of neutrophils, hemoglobin level, platelet count, hypersensitive C-reactive protein (hs-CRP), and erythrocyte sedimentation rate (ESR) were monitored in the patient group. Results The WBC count, percentage of neutrophils, hs-CRP, and ESR in 74 cases of SJIA were significantly above the normal range, their platelet counts were within the normal range, whereas hemoglobin levels were below the normal range. Compared with the control group, the patient group showed a significantly increased level of IL-6 (P<0.01) and significantly reduced levels of IL-4, IL-10, and TNF (P<0.01). However, there were no significant changes in serum levels of IL-2 and IFN-γ in the patient group (P>0.05). In SJIA children, IL-6 level, which was significantly elevated, was negatively correlated with hemoglobin level, which was significantly reduced (r=-0.244, P<0.05). Conclusions Serum level of IL-6 is significantly increased in children with SJIA, and it has a negative correlation with anemia.
关键词
全身型幼年特发性关节炎 /
细胞因子 /
儿童
Key words
Systemic juvenile idiopathic arthritis /
Cytokine /
Child
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基金
浙江省医药卫生科技计划项目(2011KYA096).
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