在检测MDR-TB和演变为XDR-TB的基因型和表型方法
Natalia Zaporojan1, Ramona Hodișan2, Carmen Pantiș3
1Doctoral School of Biomedical Sciences, University of Oradea, University Street 1, 410087 Oradea, Romania.
Antibiotics (Basel, Switzerland)
|July 29, 2025
概括
对耐药结核病的基因型检测是快速的,但可能会错过一些耐药性. 结合基因型和表型方法,改善了对多药耐药结核病 (MDR-TB) 的诊断.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 分子诊断学 分子诊断
背景情况:
- 准确诊断耐药结核病 (TB) 对于有效治疗和传播控制至关重要.
- 结核菌 (M. tuberculosis) 的耐药性需要快速的诊断方法.
研究的目的:
- 为了比较M.结核病的表型和基因型药物敏感性测试方法.
- 评估基因型MTBDRplus与结核病耐药性表型检测相比的准确性.
主要方法:
- 使用Löwenstein-Jensen介质进行表型药物敏感性测试.
- 使用基因型MTBDRplus测定进行基因型药物敏感性测试.
- 对一线和二线结核病药物耐药性的评估.
主要成果:
- 对异亚 (84.85%),利芬素 (46.97%),斯特雷普托米辛 (48.48%) 和乙ambutol (30.30%) 观察到的表型耐药性的高率.
- 显著比例的多耐药结核病 (MDR-TB) 隔离体对诺基诺和/或氨基糖化物产生了耐药性,其中一些被归类为广泛耐药性结核病 (XDR-TB).
- 基因型和表型方法之间具有很高的一致性 (RIF为94.74%,INH为95.16%),在基因型测试错过表型耐药性的情况下存在一些差异.
结论:
- 基因型MTBDRplus提供快速准确的基因型结核病耐药性检测.
- 基因型方法可能无法检测出所有表型耐药性的病例,突出限制.
- 建议结合表型和基因型测试,可能包括基因组测序,用于准确的MDR-TB诊断.
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