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中国防痨杂志 ›› 2009, Vol. 31 ›› Issue (4): 227-229.

• 论著 • 上一篇    下一篇

荧光定量PCR测定支气管肺泡灌洗液中TbDNA对涂阴肺结核的诊断价值

张红漫;李志惠;赵杰;刘朋冲;耿书军;李毅;宋韬   

  1. 河北省胸科医院 石家庄 050041
  • 出版日期:2009-04-10 发布日期:2011-11-03

The clinical value of Tb-DNA in BALF detected by FQ-PCR in diagnosing smear-negative pulmonary tuberculosis

Zhang Hongman, Li Zhihui, Zhao Jie, Liu Pengchong, Geng Shujun, Li Yi, Song Tao   

  1. Chest Hospital in Hebei Province,Shijiazhuang 050041, China
  • Online:2009-04-10 Published:2011-11-03

摘要: 目的探讨纤支镜肺泡灌洗液中结核分枝杆菌DNA在涂阴肺结核诊断中的价值。方法应用荧光定量聚合酶链反应(FQ-PCR)技术对300例涂阴肺结核,178例菌阳肺结核及119例肺炎或肺癌患者的纤支镜肺泡灌洗液标本进行结核分枝杆菌DNA检测。结果3种病因肺泡灌洗液结核分枝杆菌DNA阳性检出率分别为:74.3%(223/300)、94.9%(169/178)、17.6%(21/119)。结论荧光定量聚合酶链反应检测肺泡灌洗液结核分枝杆菌DNA,用于肺结核诊断可提高肺结核诊断的敏感性和准确性,明显优于痰抗酸染色,亦较痰结核菌培养诊断灵敏、快速,可作为肺结核诊断较可靠指标。

关键词: 结核, 肺/诊断, 支气管肺泡灌洗液, 分枝杆菌, 结核, DNA, 细菌, 聚合酶链反应

Abstract: ObjectiveTo study the value of M.tuberculosis (MTB) DNA(MTB-DNA) in bronchoalveolar lavage fluid (BALF) detected by fluorescence quantitative polymerase chain reaction (FQ-PCR) in diagnosing smear-negative pulmonary tuberculosis.MethodsFQ-PCR was uesd to detect the MTB-DNA in BALF from 300 smear-negative pulmonary TB patients,178 smear-positive pulmonary TB patients and 119 patients with pneumonia or lung cancer.ResultsThe positive rates of MTB-DNA in 3 groups patients mentioned above were 74.3%(223/300), 94.9%(169/178), and 17.6%(21/119), respectively. ConclusionDetecting MTB-DNA in BALF by FQ-PCR could significantly improve the sensitivity of the diagnosis of TB, might become a helpful method for the diagnosis of TB.

Key words: tuberculosis,pulmonary/diagnosis, bronchoalveolar lavage fluid, Mycobacterium tuberculosis, DNA,bacterial, polymerase chain reaction