检验医学 ›› 2017, Vol. 32 ›› Issue (11): 1043-1045.DOI: 10.3969/j.issn.1673-8640.2017.011.023

• 技术研究与评价_论著 • 上一篇    下一篇

实时荧光核酸恒温扩增技术在解脲脲原体检测中的临床应用价值

石瑛, 王云凤, 路璐, 任静静, 马丹, 李琳   

  1. 郑州大学第三附属医院检验科,河南 郑州 450052
  • 收稿日期:2016-12-19 出版日期:2017-11-30 发布日期:2017-12-07
  • 作者简介:null

    作者简介:石 瑛,女,1971年生,博士,副主任技师,主要从事分子生物学检验研究。

  • 基金资助:
    河南省科技厅基础研究项目(132300410128)

Determination of Ureaplasma urealyticum by real-time fluorescence isothermal RNA amplification assay

SHI Ying, WANG Yunfeng, LU Lu, REN Jingjing, MA Dan, LI Lin   

  1. Department of Clinical Laboratory,the Third Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,Henan,China
  • Received:2016-12-19 Online:2017-11-30 Published:2017-12-07

摘要:

目的 初步探讨利用实时荧光核酸恒温扩增技术(SAT)检测解脲脲原体(UU)RNA的临床应用价值。方法 对200例捐精体检者采集尿道拭子,分别采用SAT检测UU RNA和实时荧光定量聚合酶链反应(qRT-PCR)检测UU DNA,并采用培养法检测UU病原体;对UU阳性者进行抗菌药物治疗后,再次采用qRT-PCR和SAT进行病原体检测,并对结果进行比较分析。结果 培养法、qRT-PCR和SAT检测UU的阳性率分别为20.0%(40/200)、23.0%(46/200)和22.5%(45/200);三者间一致性比较显示,Kappa值>0.75。对于首次筛查UU DNA阳性者进行抗菌药物治疗,15 d后qRT-PCR和SAT的阳性率分别为39.1%(18/46)和32.6%(15/46),2种方法阳性率差异尽管不具有统计学意义,但有用药后SAT检测UU的阳性率低于qRT-PCR的趋势。结论 UU培养法、SAT和qRT-PCR均可以用于UU的筛查,但用SAT检测UU RNA在判断治疗是否有效上具有更高的临床应用价值。

关键词: 解脲脲原体, 实时荧光核酸恒温扩增技术, RNA, 细菌培养

Abstract:

Objective To evaluate the determination of Ureaplasma urealyticum(UU) by real-time fluorescence isothermal RNA amplification assay(SAT). Methods A total of 200 cases of urethral swabs from sperm donors were collected and determined by SAT for UU RNA,real-time fluorescence quantitation polymerase chain reaction(qRT-PCR) for UU DNA and culturing for UU pathogens. UU-positive sperm donors were treated with antibiotics,then they were determined again for UU by qRT-PCR and SAT. Results The positive rates by culturing,qRT-PCR and SAT for UU were 20.0%(40/200),23.0%(46/200) and 22.5%(45/200),respectively. The Kappa value was >0.75 for the consistency of culturing,qRT-PCR and SAT. After antibiotics were given for UU-positive sperm donors for 15 d,the positive rates of qRT-PCR and SAT were 39.1%(18/46) and 32.6%(15/46),respectively. Although there was no statistical significance,the positive rate of SAT was lower than that of qRT-PCR after treatment. Conclusions Culturing,SAT and qRT-PCR can be used for UU screening. However,UU RNA determination by SAT for patients after being given antibiotics is potential.

Key words: Ureaplasma urealyticum, Real-time fluorescence isothermal RNA amplification assay, RNA, Culturing

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