检验医学 ›› 2014, Vol. 29 ›› Issue (2): 153-157.DOI: 10.3969/j.issn.1673-8640.2014.02.015

• 技术研究与评价·论著 • 上一篇    下一篇

BioPlexTM 2200全自动免疫分析仪检测抗环瓜氨酸肽抗体的性能评估

赵瀛, 黄斐, 宋斌斌, 郭玮, 潘柏申   

  1. 上海复旦大学医学院附属中山医院检验科, 上海 200032
  • 收稿日期:2013-01-28 出版日期:2014-02-20 发布日期:2014-02-20
  • 通讯作者: 潘柏申, 联系电话:021-64041990-2376
  • 作者简介:赵 瀛, 女, 1980年生, 学士, 主管技师, 主要从事临床免疫工作。
  • 基金资助:

    “十二五”国家科技支撑计划课题(2012BAI37B01);国家临床重点检验专科建设项目

The analytical performance evaluation of BioPlexTM 2200 automatic immunoassay analyzer for the determination of anti-cyclic citrullinated peptide antibodies

ZHAO Ying, HUANG Fei, SONG Binbin, GUO Wei, PAN Baishen.   

  1. Department of Clinical Laboratory, Zhongshan Hospital, Fudan University School of Medicine, Shanghai 200032, China
  • Received:2013-01-28 Online:2014-02-20 Published:2014-02-20

摘要:

目的 评估BioPlexTM 2200全自动免疫分析仪(简称BioPlexTM 2200)检测抗环瓜氨酸肽(CCP)抗体的分析性能和临床应用价值。方法 采用BioPlexTM 2200检测65例类风湿关节炎(RA)患者、46例非RA患者(自身免疫疾病31例、骨关节炎15例)及20名表面健康者血清抗CCP抗体, 评价其分析性能和初步临床应用价值, 并与Roche检测系统进行一致性比较。结果 高、中、低浓度混合血清的批内精密度分别为2.4%、3.3%、4.4%;天间精密度分别为4.5%、3.5%、5.6%。经多项式回归分析, BioPlexTM 2200在0.5~294.6 U/mL范围内呈线性。BioPlexTM 2200与Roche检测系统结果的一致性较好(kappa值为0.873)。受试者工作特征(ROC)曲线显示抗CCP抗体诊断RA的最佳诊断Cut-off值为2.3 U/mL, 诊断灵敏度和特异性分别为80.0%和98.5%。结论 BioPlexTM 2200检测抗CCP抗体的分析性能较好, 能够适用于临床对于RA的诊断和疗效评估。

关键词: 抗环瓜氨酸肽抗体, 类风湿关节炎, 精密度, 线性, 受试者工作特征曲线

Abstract:

Objective To evaluate the analytical performance of BioPlexTM 2200 automatic immunoassay analyzer (Bio PlexTM 2200) for the determination of anti-cyclic citrullinated peptide (CCP) antibodies, and assess its clinical application significance. Methods Serum samples from 65 patients with rheumatoid arthritis(RA), 46 non-RA patients(31 patients with various autoimmune diseases and 15 patients with osteoarthritis)and 20 healthy subjects were collected. Their anti-CCP antibodies were determined by Bio PlexTM 2200.The analytical performance and preliminary clinical application significance of BioPlexTM 2200 were evaluated. The consistency was evaluated between BioPlexTM 2200 and Roche Elecsys assay. Results The within-run and inter-day precisions of high, moderate and low concentrations of sera were 2.4% / 4.5%, 3.3% / 3.5% and 4.4%/5.6%, respectively. BioPlexTM 2200 could be evaluated as liner in the range of 0.5-294.6 U/mL through polynomial regression analysis. The consistency between BioPlexTM 2200 and Roche Elecsys assay was good (kappa value was 0.873). The optimal cut-off valuefor the diagnosis of anti-CCP antibodies was 2.3 U/mL by receiver operating characteristic (ROC) curve, the diagnostic sensitivity was 80.0%, and the diagnostic specificity was 98.5%. Conclusions BioPlexTM 2200 has a good analytical performance, and it can be applied to the clinical diagnosis of RA and the monitoring of treatment efficacy.

Key words: Anti-cyclic citrullinated peptide antibody, Rheumatoid arthritis, Precision, Linearity, Receiver operating characteristic curve

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