检验医学 ›› 2014, Vol. 29 ›› Issue (8): 813-816.DOI: 10.3969/j.issn.1673-8640.2014.08.007

• 临床应用研究·论著 • 上一篇    下一篇

HbA1c在三种检测系统及不同储存条件下结果的稳定性

索明环, 温冬梅, 张秀明, 周甲思, 陈亚琼, 吴剑杨, 徐全中, 胡婷, 阚丽娟   

  1. 中山大学附属中山医院检验中心,广东中山 528403
  • 收稿日期:2013-10-09 出版日期:2014-08-30 发布日期:2014-09-05
  • 通讯作者: 通讯作者:温冬梅,联系电话:0760-89880477。
  • 作者简介:索明环,女,1982年生,硕士,主管技师,主要从事临床生化检验工作。
  • 基金资助:
    中山市科技局资助课题(20122A034)

ThestabilityofHbA1cmeasurementbythreedetectionsystemsunderdifferentstorageconditions

SUOMinghuan, WENDongmei, ZHANGXiuming, ZHOUJiasi, CHENYaqiong, WUJianyang, XUQuanzhong, HUTing, KANLijuan   

  1. CenterofClinicalLaboratory,ZhongshanHospitalofSunYat-senUniversity,GuangdongZhongshan 528403,China
  • Received:2013-10-09 Online:2014-08-30 Published:2014-09-05

摘要: 目的 探讨在3种不同检测系统及不同的储存条件下全血糖化血红蛋白A1c(HbA1c)检测结果的稳定性差异。方法 选取3支用乙二胺四乙酸二钾(EDTA-K2)抗凝的不同HbA1c浓度的全血样本,分装后分别置常温(20~25 ℃)、4 ℃、-30 ℃、-70 ℃保存。分别于第1、3、5、7、14、21、28、35、42、56、84天用3种HbA1c检测系统[Bio-Rad variant ⅡTurbo HbA1c检测仪(阳离子离子交换高效液相色谱法),简称Bio-Rad variant ⅡTurbo;Primus Ultra2 HbA1c检测仪(亲和层析高效液相色谱法),简称Primus Ultra2;Roche Modular PPI全自动生化分析仪及配套试剂(免疫抑制比浊法),简称Roche Modular PPI]进行测定。结果 -70 ℃保存样本不同时间测定结果的差异较小,其中Bio-Rad variant ⅡTurbo测定样本的变异系数(CV)为2.12%~2.80%;Primus Ultra2CV为2.19%~2.71%;Roche Modular PPI的CV为2.28%~2.91%。Bio-Rad variant ⅡTurbo测定的样本常温可稳定7 d,4 ℃可稳定14 d,-30 ℃可稳定35 d;Primus Ultra2测定的样本常温可稳定14 d,4 ℃可稳定56 d,-30 ℃可稳定84 d;Roche Modular PPI测定的样本常温可稳定14 d,4及-30 ℃可稳定84 d。结论 不同的检测系统及不同的样本存放条件HbA1c检测结果存在差异。

关键词: 糖化血红蛋白A1c, 时间, 温度

Abstract: Objective To investigate the stability differences of glycosylated hemoglobin A1c(HbA1c) measurement by 3 detection systems under different storage conditions. Methods Three whole blood samples anti-coagulated by ethylene diamine tetraacetic acid-K2(EDTA-K2) at 3 HbA1c levels were collected and stored at room temperature(20-25℃), 4℃,-30℃ and -70℃. One aliquot from each temperature was analyzed by each method on day 1, 3, 5, 7, 14, 21, 28, 35, 42, 56 and 84. The 3 detection systems were Bio-Rad variant Ⅱ Turbo HbA1c analyzer (positive ion exchange high performance liquid chromatography, Bio-Rad variant Ⅱ Turbo), Primus Ultra2 HbA1c analyzer (affinity high performance liquid chromatography, Primus Ultra2) and Roche Modular PPI automatic biochemistry analyzer and its reagents (inhibition immunoturbidimetry, Roche Modular PPI). Results The results of samples stored at -70℃ were similar at different days. The coefficient of variation (CV) for Bio-Rad variant ⅡTurbo was 2.12%-2.80%. The CV for Primus Ultra2 was 2.19%-2.71%. The CV for Roche Modular PPI was 2.28%-2.91%. The Bio-Rad variant Ⅱ Turbo showed having stabilities at room temperature for 7 d, 4 ℃ for 14 d and -30℃ for 35 d. The Primus Ultra2 showed having stabilities at room temperature for 14 d, 4℃ for 56 d and -30℃ for 84 d. The Roche Modular PPI showed having stabilities at room temperature for 14 d, 4℃ for 84 d and -30℃ for 84 d. Conclusions The HbA1c measurement is differently detected by different systems under different storage conditions.

Key words: Glycosylated hemoglobin A1c, Time, Temperature

中图分类号: