检验医学 ›› 2017, Vol. 32 ›› Issue (9): 806-808.DOI: 10.3969/j.issn.1673-8640.2017.09.013

• 技术研究与评价·论著 • 上一篇    下一篇

微阵列ELFA和IBT 2种过敏原筛查方法临床应用评价

赵凌旭, 赵婕, 胡晓波   

  1. 上海中医药大学附属龙华医院检验科,上海 200032
  • 收稿日期:2016-09-19 出版日期:2017-09-30 发布日期:2017-09-30
  • 作者简介:null

    作者简介:赵凌旭,男,1986年生,学士,主管技师,主要从事临床免疫学检验工作。

Evaluation of microfluidic cartridge ELFA and IBT for allergen testing

ZHAO Lingxu, ZHAO Jie, HU Xiaobo   

  1. Department of Clinical Laboratory,Longhua Hospital,Shanghai University of Traditional Chinese Medicine,Shanghai 200032,China
  • Received:2016-09-19 Online:2017-09-30 Published:2017-09-30

摘要:

目的 比较微阵列酶联免疫荧光法(ELFA)和免疫印迹法(IBT)在过敏原筛查中的差异。方法 选取225例于上海中医药大学附属龙华医院皮肤科就诊患者,采用IBT和微阵列ELFA进行吸入性及食物性过敏原特异性IgE(sIgE)检测。结果 在225例患者中,IBT阳性51例,阳性率为22.7%,抗原阳性率从高到低位于前4位的依次为屋尘螨/粉尘螨、鳕鱼/龙虾/扇贝、屋尘、猫毛;微阵列ELFA阳性82例,阳性率为36.4%,抗原阳性率从高到低位于前4位的依次为螨虫组合(粉尘螨/屋尘螨/热带无爪螨)、蟑螂组合(德国蟑螂/亚洲蟑螂)、蟹、猫毛。2种方法对尘螨、蟑螂、猫毛、海鱼组合、蟹的分级一致性Kappa值分别为38.2%、6.04%、32.1%、22.2%、13.4%。结论 微阵列ELFA与IBT在临床检测中有较大差异,微阵列ELFA包含更多的过敏原,具有更高的阳性率,2种方法应互为补充以提高阳性率。

关键词: 过敏原筛查, 特异性IgE, 微阵列酶联免疫荧光法, 免疫印迹法

Abstract:

Objective To evaluate the performance of microfluidic cartridge enzyme-linked fluorescent immunoassay(ELFA)and immunoblotting test(IBT)for allergen testing.Methods A total of 225 patients from Shanghai University of Traditional Chinese Medicine Longhua Hospital Dermatological Department were enrolled. Allergen-specific IgE(sIgE)was determined by IBT and microfluidic cartridge ELFA. Results Specific allergens had been determined in 51 cases by IBT,the positive rate was 22.7%,and the top 4 common allergens were dermatophagoides pteronyssinus/dermatophagoides farinae,codfish/lobster/scallop,house dust and cat fur. Specific allergens had been determined in 82 cases by microfluidic cartridge ELFA,the positive rate was 36.4%,and the top 4 common allergens were mite mix(dermatophagoides farinae/dermatophagoides pteronyssinus/blomia tropicalis),cockroach mix(blattella germanica/blattella asahinai),crab and cat fur. The Kappa values for the consistency of the 2 methods were 38.2%,6.04%,32.1%,22.2% and 13.4% for mite mix,cockroach mix,cat fur,seafish mix and crab.Conclusions There is difference between IBT and microfluidic cartridge ELFA for allergen testing. Comparing with IBT,there are more allergens and higher positive rate of microfluidic cartridge ELFA. The 2 methods should be a complement for each other .

Key words: Allergen testing, Specific IgE, Microfluidic cartridge enzyme-linked fluorescent immunoassay, Immunoblotting test

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