Efficacy of PCR-reverse Dot Hybridization in Drug Resistance Gene Detection and Drug Sensitivity of BD960 Tuberculosis in Drug Resistance Tuberculosis Detection
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摘要:
目的 分析PCR-反向点杂交法耐药基因检测和BD960结核分枝杆菌药物敏感性试验在结核分枝杆菌耐药性方面的差异,并探讨其临床应用价值。 方法 收集356例昆明市第三人民医院结核科住院患者的痰和灌洗液标本,分别用2种方法检测异烟肼(H)、利福平(R)、链霉素(S)、乙胺丁醇(E)的药物敏感性,结果通过校正卡方检验对比分析。 结果 2种检测方法对单耐药、多耐药、耐多药结核菌检测,在99%的置信区间,校正χ2均是P < 0.01。 结论 可认为2种方法对3种耐药的检测有差异性。结核菌药敏试验耐多药PCR-反向点杂交法优于BD960检测;单耐药、多耐药BD960药敏优于PCR-反向点杂交法。 Abstract:Objective To analyze the difference between PCR-reverse dot hybridization drug resistance gene detection and BD960 Mycobacterium tuberculosis drug sensitivity test in identifying drug resistance of Mycobacterium tuberculosis, and to discuss its clinical efficacy. Methods The drug sensitivity of isoniazid (H), rifampicin (R), ethambutanol (E) and streptomycin (S) in sputum and lavage samples of 356 hospitalized TB patients were collected in The 3rd People's Hospital of Kunming were detected simultaneously by two testing methods. The results were compared and analyzed by correction χ2 test. Results Single drug resistance, multi-drug resistance and MDR were detected by the two testing methods. On the 99% confidence interval, the adjusted chi-square values are all P < 0.01. Conclusion The two methods have differences in the detection of three kinds of resistance. The multidrug resistance PCR-reverse dot blot hybridization method of Mycobacterium tuberculosis drug sensitivity test is better than BD960 detection. The drug sensitivity of single drug resistance and multi-drug resistance BD960 is better than PCR-reverse dot hybridization. -
Key words:
- Mycobacterium tuberculosis /
- Drug resistance /
- Gene detection /
- BD960 sensitivity
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表 1 PCR反向杂交法和BACTEC MGIT 960 System单耐药检测结果
Table 1. PCR Reverse Hybridization and BACTEC MGIT 960 System Single Drug Resistance Detection Results
PCR反向杂交法 BACTEC MGIT 960 合计(%) 检出单耐药(n) 未检出单耐药(n) 检出单耐药(n) 32 2 94.12 未检出单耐药(n) 4 324 1.22 合计(%) 88.89 0.61 表 2 PCR反向杂交法检和BACTEC MGIT 960 System多耐药检测结果
Table 2. PCR Reverse Hybridization and BACTEC MGIT 960 System Multidrug Resistance Detection Results
PCR反向杂交法 BACTEC MGIT 960 合计(%) 检出多耐药(n) 未检出多耐药(n) 检出多耐药(n ) 14 2 87.50 未检出多耐药(n) 3 342 0.86 合计(%) 82.35 0.58 表 3 PCR反向杂交法和BACTEC MGIT 960 System耐多药检测结果
Table 3. PCR Reverse Hybridization and BACTEC MGIT 960 System MDR Test Results
PCR反向杂交法 BACTEC MGIT 960 合计(%) 检出耐多药(n) 未检出耐多药(n) 检出耐多药(n) 45 3 93.75 未检出耐多药(n) 1 311 0.32 合计(%) 97.87 0.96 -
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