基础医学与临床 ›› 2020, Vol. 40 ›› Issue (4): 523-527.

• 研究论文 • 上一篇    下一篇

液相芯片技术与实时荧光定量PCR在检测儿童感染性腹泻病原体的比较

汉聪慧1, 曹广进2, 张福真1, 胡亮杉3, 曹东林3*, 李凌1*   

  1. 1.南方医科大学 公共卫生学院 三级生物安全实验室,广东 广州 510515;
    2.广州市番禺区疾病预防控制中心,广东 广州 511400;
    3.广东省第二人民医院 临床检验中心, 广东 广州 510317
  • 收稿日期:2019-11-12 修回日期:2020-01-15 出版日期:2020-04-05 发布日期:2020-04-06
  • 通讯作者: *liling@smu.edu.cn; caodl@126.com
  • 基金资助:
    2013年度广东省级财政技术研究开发与推广应用专项资金项目(粤财工[2013]401)

Comparison of liquid-phase chip and real-time fluorescent quantitative PCR for the detection of infectious diarrhoeal pathogens in children

HAN Cong-hui1, CAO Guang-jin2, ZHANG Fu-zhen1, HU Liang-shan3, CAO Dong-lin3*, LI Ling1*   

  1. 1. Biosafety Level 3 Laboratory, School of Public Health, Southern Medical University, Guangzhou 510515;
    2. Panyu District Center for Disease Control and Prevention, Guangzhou 511400;
    3. Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou 510317, China
  • Received:2019-11-12 Revised:2020-01-15 Online:2020-04-05 Published:2020-04-06
  • Contact: *liling@smu.edu.cn; caodl@126.com

摘要: 目的 研究液相芯片检测儿童感染性腹泻病原体的效率,为感染性腹泻病的临床快速诊断提供依据。方法 收集96例婴幼儿及儿童腹泻患者粪便样本,运用Luminex液相芯片进行检测,并与实时荧光定量PCR检测结果比较。结果 液相芯片技术共检测出7种病原体,阳性检出率为65.63%(63/96),其中沙门氏菌的检出率最高,为50.00%(48/96);单病原感染的阳性率为39.58%(38/96),混合感染的阳性率为26.04%(25/96)。与实时荧光定量PCR相比,液相芯片检测腹泻病原体的敏感度和特异度分别为100.00%和71.74%,阴性预测值和阳性预测值分别为100.00%和79.37%(P<0.05)。结论 与实时荧光定量PCR相比,液相芯片技术具有高通量、快速、可靠等特点,有利于感染性腹泻病原体的临床检测。

关键词: 液相芯片, 实时荧光定量PCR, 感染性腹泻病, 病原体检测

Abstract: Objective To investigate the efficiency of liquid-phase chip on the detection of infectious diarrhea pathogens in children, and provide reference for rapid clinical diagnosis of infectious diarrhea diseases. Methods Stool samples of 96 infants and children with diarrhea were collected and detected by xTAG®Gastrointestinal Pathogen Panel (GPP), and the results were compared with the real-time PCR method. Results Total of 7 pathogens were detected by liquid-phase chip technology, with a positive detection rate of 65.63%(63/96), and the Salmonella detection rate was highest as 50%(48/96). The positive rate of single pathogen infection was 39.58%(38/96), and the positive rate of mixed infection was 26.04%(25/96). Overall, compared with the results of real-time PCR, the sensitivity and specificity of the liquid-phase chip in the detection of diarrhea pathogens were 100% and 71.74%, respectively, and negative predictive value and positive predictive value were 100.00% and 79.37%, respectively(P<0.05). Conclusions Compared with real-time PCR, liquid-phase chip is a character-ized by high throughput, rapid and reliable so support laboratory diagnosis of contagious diarrhea

Key words: liquid-phase chip, real-time PCR, infectious diarrhea diseases, pathogen detection

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