检验医学 ›› 2016, Vol. 31 ›› Issue (1): 22-25.DOI: 10.3969/j.issn.1673-8640.2016.01.005

• 临床应用研究·论著 • 上一篇    下一篇

异常血红蛋白的筛查及其分子诊断

谢建红, 汪国庆, 肖奇志, 张永良, 周玉球, 胡利清   

  1. 珠海市妇幼保健院检验科,广东 珠海 519001
  • 收稿日期:2015-09-15 出版日期:2016-01-31 发布日期:2016-02-16
  • 作者简介:null

    作者简介:谢建红,男,1972年生,硕士,副主任技师,主要从事分子遗传研究。

    通讯作者:周玉球,联系电话:0756-2313059。

Screening and molecular diagnosis for abnormal hemoglobin

XIE Jianhong, WANG Guoqing, XIAO Qizhi, ZHANG Yongliang, ZHOU Yuqiu, HU Liqing   

  1. Department of Clinical Laboratory,Zhuhai Municipal Maternity and Child Healthcare Hospital,Zhuhai 519001,Guangdong,China
  • Received:2015-09-15 Online:2016-01-31 Published:2016-02-16

摘要: 目的应用高效液相色谱法(HPLC)检测异常血红蛋白(Hb)并对各异常Hb进行分子诊断。方法收集6 297例血样,采用HPLC检测各种异常Hb,应用Sanger测序法对各异常Hb进行DNA测序。结果共发现7种异常Hb,分别为Hb E(37例)、Hb Q(18例,其中3例为Hb Q-Hb H)、Hb S(2例)、Hb C(2例)、Hb D-Iran(3例)、Hb J-Bangkok(8例)、Hb J-Mexico(2例)。经DNA测序,Hb E、Hb Q、Hb C及Hb J-Bangkok得到确诊;2例Hb S中1例为Hb S纯合子,另1例为Hb G-Makassar;3例Hb D-Iran中2例为Hb G-Taipei,1例为Hb G-Coushatta;2例Hb J-Mexico被证实为Hb Ube-2。结论虽然HPLC能快速检测异常Hb,但只能进行“假设性诊断”,确诊还需通过分子生物学方法。

关键词: 异常血红蛋白, 高效液相色谱, DNA测序, 筛查, 分子诊断

Abstract:

Objective To screen abnormal hemoglobin(Hb) by high performance liquid chromatography(HPLC)and identify it by molecular diagnosis. Methods Abnormal Hb was detected by HPLC in 6 297 samples and identified by Sanger DNA sequencing. Results A total of 7 types of abnormal Hb were found,including Hb E(37 cases),Hb Q(18 cases,notably 3 cases of Hb Q-Hb H),Hb S(2 cases),Hb C(2 cases),Hb D-Iran(3 cases),Hb J-Bangkok(8 cases) and Hb J-Mexico(2 cases). Hb E,Hb Q,Hb C and Hb J-Bangkok were identified by DNA sequencing,however,1 of 2 cases of Hb S was Hb S homozygote,and another was Hb G-Makassar. The 3 cases of Hb D-Iran were diagnosed as Hb G-Taipei(2 cases) and Hb G-Coushatta(1 case). The 2 cases of Hb J-Mexico were validated as Hb Ube-2. Conclusions Though abnormal Hb can be rapidly detected by HPLC,hypothetical diagnosis can be performed,and the final diagnosis should be based on molecular biology analysis.

Key words: Abnormal hemoglobin, High performance liquid chromatography, DNA sequencing, Screening, Molecular diagnosis

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