检验医学 ›› 2017, Vol. 32 ›› Issue (9): 757-759.DOI: 10.3969/j.issn.1673-8640.2017.09.003

• 临床应用研究·论著 • 上一篇    下一篇

上海地区血清胆碱酯酶检测情况调查

欧元祝, 唐立萍, 虞啸炫, 王美娟, 刘文彬   

  1. 上海市临床检验中心,上海 200126
  • 收稿日期:2016-11-25 出版日期:2017-09-30 发布日期:2017-09-30
  • 作者简介:null

    作者简介:欧元祝,女,1975年生,硕士,副主任技师,主要从事临床生化标准化工作。

  • 基金资助:
    上海市卫生和计划生育委员会面上课题(20134301)

Investigation on the determination of serum cholinesterase in Shanghai

OU Yuanzhu, TANG Liping, YU Xiaoxuan, WANG Meijuan, LIU Wenbin   

  1. Shanghai Center for Clinical Laboratory,Shanghai 200126,China
  • Received:2016-11-25 Online:2017-09-30 Published:2017-09-30

摘要:

目的 通过对上海地区各临床实验室胆碱酯酶(CHE)检测情况的调查,了解上海地区CHE检测的整体情况,为开展上海地区CHE的室间质量评价提供相关依据。方法 将4个不同水平的CHE人血清基质调查质控品发放给上海地区69家不同等级、不同类型的临床实验室,所有实验室均在规定的时间内进行检测并统一反馈检测结果。对各实验室的检测结果按检测方法和试剂品牌进行统计。结果 69家临床实验室共涉及3种检测方法,共分为4个方法组:德国临床化学协会(DGKC)推荐的以丁酰硫代胆碱/六氰高铁酸钾(Ⅲ)为底物的比色法(简称DGKC法)、以丁酰硫代胆碱/5,5'-二硫双(2-硝基苯甲酸)(DTNB)为底物的比色法(简称DTNB法)、日本临床化学协会(JSCC) 推荐的酶偶联法(简称JSCC法)以及干化学法(反应原理同DGKC法)。4个方法组检测结果的组内变异情况较好[变异系数(CV)均<10%],JSCC法的检测结果与其他3个方法组有很大差异。干化学法的检测结果与DGKC法有明显差异,而DGKC法与DTNB法的差异较小,各样本间检测结果的偏差均<3%。上海地区CHE检测试剂的原理以DGKC法和DTNB法为主(约占85%),2种方法的试剂品牌数量比例相当,但使用DGKC法试剂的临床实验室数(38家)明显多于使用DTNB法试剂的临床实验室数(14家)。结论 此次调查结果为上海地区开展CHE的室间质量评价提供了相关依据。

关键词: 胆碱酯酶, 检测方法, 室间质量评价

Abstract:

Objective To know the status of serum cholinesterase(CHE) determination in Shanghai through investigation,and to provide a reference for the external quality assessment of CHE determination in Shanghai.Methods Quality control samples with 4 different levels basing on human serum matrix were delivered to 69 laboratories with different grades and types in Shanghai. All samples were determined within prescribed time,and determination results were reported in unified time. The results of laboratories were classified according to determination methods and reagent brands. Results The 69 laboratories used 3 determination methods,and were classified into 4 determination method groups,German Society for Clinical Chemistry(Deutsche Gesellschaft für Klinische Chemie,DGKC) colorimetric method with butyrylthiocholine/potassium hexacyanochromate(Ⅲ) as substrate,colorimetric method with butyrylthiocholine /5,5'-dithiobis(2-nitrobenzoic acid)(DTNB) as substrate,enzyme coupling method recommended by Japan Society of Clinical Chemistry(JSCC) and dry chemical DGKC method. The intra-group variation of the 4 groups was good [coefficients of variation(CV)<10%]. The results of JSCC method group were different from those of the other 3 groups,and the results of DGKC method and dry chemical DGKC method group had difference,but the results' difference between DGKC method and DTNB method groups was small,and the bias was <3%. CHE determination in Shanghai mainly(about 85%) was based on DGKC method and DTNB method as reaction principle,the numbers of reagent brands of the 2 methods was equal,however,the number of laboratories using DGKC method reagents(38) was more than the number of laboratories using DTNB method reagents(14).Conclusions The results of this investigation provide a reference for the external quality assessment of CHE determination in Shanghai.

Key words: Cholinesterase, Determination method, External quality assessment

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