论文部分内容阅读
[摘要] 目的 本研究旨在探讨血管生成素2(angiopoietin-2,Ang2)与抗中性粒细胞胞浆抗体(anti-neutrophil cytoplasmic antibodies,ANCA)相关性血管炎(ANCA-associated vasculitis,AAV)活动的关系。 方法 本研究纳入2012年5月~2016年5月间在我院住院的AAV患者共52例,所有AAV患者行伯明翰系统性血管炎活动评分(BVAS),选取BVAS<3分为非活动组,BVAS≥3分为活动组,选取我院同期健康体检者20名作为健康对照组。收集AAV患者血清,检测Ang2、血沉(ESR)、C反應蛋白(CRP)、循环内皮细胞(CECs)等,对Ang2 水平与血清学指标进行相关性分析。用特征性曲线(ROC)及曲线下面积(AUC)对Ang2、CRP 及 ESR 区分活动期及非活动期的准确度进行评价。 结果 活动组患者的血Ang2、ESR、CRP、CECs 及 BVAS 评分较非活动组患者明显升高,差异有统计学意义(P<0.05)。Ang2 水平与24 h 尿总蛋白(r=0.461,P<0.05)、BVAS(r=0.745,P<0.05)、CECs(r=0.657,P<0.05)分别呈正相关。ROC 分析显示 Ang2 的曲线下面积明显高于CRP和ESR,用外周血 Ang2 的濃度来区分 AAV 患者的非活动组与活动组准确度明显高于 ESR 和 CRP(P<0.05)。 结论 Ang2 不仅可以作为ANCA相关性血管炎活动性的指标,还有望成为一些内皮细胞疾病的靶向治疗药物。
[关键词] 血管生成素2;抗中性粒细胞胞浆抗体相关性血管炎;活动性;循环内皮细胞
[中图分类号] R446.11 [文献标识码] A [文章编号] 1673-9701(2017)25-0015-04
The relationship between angiopoietin-2 and anti-neutrophil cytoplasmic antibody-associated vasculitis activity
ZHANG Fengxia1 XU Ruiquan2
1.Department of Nephrology,the First Affiliated Hospital of Gannan Medical University,Ganzhou 341000,China;2.Department of Urology,the First Affiliated Hospital of Gannan Medical University,Ganzhou 341000, China
[Abstract] Objective To investigate the relationship between angiopoietin-2(Ang2) and anti-neutrophil cytoplasmic antibodies(ANCA) ANCA-associated vasculitis(AAV) activity. Methods A total of 52 AAV patients who were hospitalized in our hospital from May 2012 to May 2016 were enrolled in the study. All AAV patients were given Birmingham systemic vasculitis activity score(BVAS). The patients with BVAS<3 were divided into the non-active group, and the patients with BVAS≥3 were divided into the active group. 20 healthy volunteers who received physical examination in our hospital were selected as the healthy control group. The serum of AAV patients was collected, and Ang2, ESR, C-reactive protein(CRP), circulating endothelial cells(CECs) were detected. Correlation analysis was carried out on Ang2 level and serological parameters. The accuracy of Ang2, CRP and ESR in differentiating the active and non-active phases was evaluated by the ROC and AUC. Results The levels of Ang2, ESR, CRP, CECs and BVAS scores in the active group were significantly higher than those in the non-active group, and the differences were statistically significant(P<0.05). Ang2 level was correlated with 24 h urinary total protein(r=0.461, P<0.05), BVAS(r=0.745,P<0.05) and CECs(r=0.657,P<0.05). ROC analysis showed that the AUC of Ang2 was significantly higher than CRP and ESR. The accuracy of the concentration of Ang2 in peripheral blood in differentiating the active and non-active group was significantly higher than that in ESR and CRP in AAV patients(P<0.05). Conclusion Ang2 can not only serve as an indicator of the activity of ANCA-associated vasculitis, but also is expected to be the drug of targeted therapy for some endothelial cell diseases. [Key words] Angiopoietin-2(Ang2); ANCA-associated vasculitis(AAV); Activity; Circulating endothelial cells(CECs)
抗中性粒细胞胞浆抗体(anti-neutrophil cytoplasmic antibodies,ANCA)相关性系统性血管炎(ANCA-associated vasculitis,AAV)是一组累及中、小血管的抗中性粒细胞胞浆抗体阳性的自身免疫性疾病。ANCA相关性血管炎近年发病率逐年攀升,且迄今缺乏早期诊断及特效治疗的方法[1]。因此,探寻早期诊断指标具有重要意义。血管生成素2(angiopoietin-2,Ang2)是人体重要的血管特异性酪氨酸激酶感受器,对血管的稳定起着重要的作用。研究表明 Ang2 可促进血管内皮细胞的凋亡[2]。本文对 Ang2 与 ANCA 相关性血管炎活动的相关性进行分析,旨在探讨Ang2在ANCA 相关性血管炎活动性评价中的意义。现报道如下。
1 资料与方法
1.1 一般資料
收集2012年5月~2016年5月间在我院肾内科住院的AAV患者共52例。纳入标准:(1)确诊为AAV,诊断标准参照1994年美国Chapel Hill会议关于系统血管炎命名分类法及美国风湿病学会的分类标准[3]。(2)合并慢性肾脏病:①肾损害病程超过3个月,表现为不同程度的蛋白尿、血尿,无论有无肾功能的下降;②肾小球滤过率(GFR)<60 mL/(min·1.73 m2)持续超过3个月,无论有无肾损害表现。(3)血清ANCA阳性。排除标准:合并严重感染;合并恶性肿瘤疾病;其他自身免疫性疾病(包括系统性红斑狼疮、类风湿关节炎、硬皮病、皮肌炎、混合性结缔组织病等)。其中男34例,女18例,平均年龄(61.10±13.75)岁。采用伯明翰系统性血管炎活动评分(BVAS)计算活动性评分,非活动组21例(BVAS评分<3分),活动组31例(BVAS评分≥3分)。另选取我院健康体检者20例为对照组,其中男10例,女10例,平均年龄(60.50±12.79)岁,无相关免疫性疾病。
1.2 方法
1.2.1 标本采集 在治疗之前,清晨空腹采集外周血,注入含枸橼酸钠的抗凝管中,混匀后用离心半径为10 cm 的离心机2000 r/min 离心10 min,分离血清,取上清分装Eppendorf 管,置入-80℃冰箱冷藏。
1.2.2 相关指标的测定 采用全自动生化分析仪测定ESR、CRP、血肌酐、血分析、C3水平,收集并测量24 h 尿蛋白定量(均由赣南医学院第一附属医院检验科进行操作完成)。
1.2.3 Ang2的测定 运用ELISA检测血清中的Ang2,ELISA kit由R
[关键词] 血管生成素2;抗中性粒细胞胞浆抗体相关性血管炎;活动性;循环内皮细胞
[中图分类号] R446.11 [文献标识码] A [文章编号] 1673-9701(2017)25-0015-04
The relationship between angiopoietin-2 and anti-neutrophil cytoplasmic antibody-associated vasculitis activity
ZHANG Fengxia1 XU Ruiquan2
1.Department of Nephrology,the First Affiliated Hospital of Gannan Medical University,Ganzhou 341000,China;2.Department of Urology,the First Affiliated Hospital of Gannan Medical University,Ganzhou 341000, China
[Abstract] Objective To investigate the relationship between angiopoietin-2(Ang2) and anti-neutrophil cytoplasmic antibodies(ANCA) ANCA-associated vasculitis(AAV) activity. Methods A total of 52 AAV patients who were hospitalized in our hospital from May 2012 to May 2016 were enrolled in the study. All AAV patients were given Birmingham systemic vasculitis activity score(BVAS). The patients with BVAS<3 were divided into the non-active group, and the patients with BVAS≥3 were divided into the active group. 20 healthy volunteers who received physical examination in our hospital were selected as the healthy control group. The serum of AAV patients was collected, and Ang2, ESR, C-reactive protein(CRP), circulating endothelial cells(CECs) were detected. Correlation analysis was carried out on Ang2 level and serological parameters. The accuracy of Ang2, CRP and ESR in differentiating the active and non-active phases was evaluated by the ROC and AUC. Results The levels of Ang2, ESR, CRP, CECs and BVAS scores in the active group were significantly higher than those in the non-active group, and the differences were statistically significant(P<0.05). Ang2 level was correlated with 24 h urinary total protein(r=0.461, P<0.05), BVAS(r=0.745,P<0.05) and CECs(r=0.657,P<0.05). ROC analysis showed that the AUC of Ang2 was significantly higher than CRP and ESR. The accuracy of the concentration of Ang2 in peripheral blood in differentiating the active and non-active group was significantly higher than that in ESR and CRP in AAV patients(P<0.05). Conclusion Ang2 can not only serve as an indicator of the activity of ANCA-associated vasculitis, but also is expected to be the drug of targeted therapy for some endothelial cell diseases. [Key words] Angiopoietin-2(Ang2); ANCA-associated vasculitis(AAV); Activity; Circulating endothelial cells(CECs)
抗中性粒细胞胞浆抗体(anti-neutrophil cytoplasmic antibodies,ANCA)相关性系统性血管炎(ANCA-associated vasculitis,AAV)是一组累及中、小血管的抗中性粒细胞胞浆抗体阳性的自身免疫性疾病。ANCA相关性血管炎近年发病率逐年攀升,且迄今缺乏早期诊断及特效治疗的方法[1]。因此,探寻早期诊断指标具有重要意义。血管生成素2(angiopoietin-2,Ang2)是人体重要的血管特异性酪氨酸激酶感受器,对血管的稳定起着重要的作用。研究表明 Ang2 可促进血管内皮细胞的凋亡[2]。本文对 Ang2 与 ANCA 相关性血管炎活动的相关性进行分析,旨在探讨Ang2在ANCA 相关性血管炎活动性评价中的意义。现报道如下。
1 资料与方法
1.1 一般資料
收集2012年5月~2016年5月间在我院肾内科住院的AAV患者共52例。纳入标准:(1)确诊为AAV,诊断标准参照1994年美国Chapel Hill会议关于系统血管炎命名分类法及美国风湿病学会的分类标准[3]。(2)合并慢性肾脏病:①肾损害病程超过3个月,表现为不同程度的蛋白尿、血尿,无论有无肾功能的下降;②肾小球滤过率(GFR)<60 mL/(min·1.73 m2)持续超过3个月,无论有无肾损害表现。(3)血清ANCA阳性。排除标准:合并严重感染;合并恶性肿瘤疾病;其他自身免疫性疾病(包括系统性红斑狼疮、类风湿关节炎、硬皮病、皮肌炎、混合性结缔组织病等)。其中男34例,女18例,平均年龄(61.10±13.75)岁。采用伯明翰系统性血管炎活动评分(BVAS)计算活动性评分,非活动组21例(BVAS评分<3分),活动组31例(BVAS评分≥3分)。另选取我院健康体检者20例为对照组,其中男10例,女10例,平均年龄(60.50±12.79)岁,无相关免疫性疾病。
1.2 方法
1.2.1 标本采集 在治疗之前,清晨空腹采集外周血,注入含枸橼酸钠的抗凝管中,混匀后用离心半径为10 cm 的离心机2000 r/min 离心10 min,分离血清,取上清分装Eppendorf 管,置入-80℃冰箱冷藏。
1.2.2 相关指标的测定 采用全自动生化分析仪测定ESR、CRP、血肌酐、血分析、C3水平,收集并测量24 h 尿蛋白定量(均由赣南医学院第一附属医院检验科进行操作完成)。
1.2.3 Ang2的测定 运用ELISA检测血清中的Ang2,ELISA kit由R