挥发性分析可以区分Streptococcus pyogenes与其他呼吸道菌株菌株
Amalia Z Berna1,2, Joseph A Merriman3,4, Leah Mellett3
1Department of Pediatrics, Washington University School of Medicine , St. Louis, Missouri, USA.
mSphere
|October 4, 2023
概括
研究人员确定了特定的细菌挥发性有机化合物 (VOC),可以检测链球菌 pyogenes,链球菌喉炎的原因. 这一发现支持开发快速,非侵入性呼吸测试来诊断喉炎.
科学领域:
- 微生物学 微生物学
- 分析化学 分析化学
- 生物标志物发现发现
背景情况:
- 喉痛是一种常见的门诊病症,通常是由Streptococcus pyogenes引起的.
- 目前用于诊断喉炎的诊断方法,如喉拭子,耗时.
- 需要快速的,独立于培养的临床诊断来指导抗生素治疗.
研究的目的:
- 评估细菌挥发性有机化合物 (VOC) 作为Streptococcus pyogenes的生物标志物.
- 建立基于呼吸的诊断的概念验证,以治疗链球菌喉炎.
- 为了区分S. pyogenes的挥发性新陈代谢与其他殖民性链球菌物种.
主要方法:
- 在体外培养的S. pyogenes和相关的口腔菌杆菌物种.
- 使用气色谱-质谱分析挥发性代谢物.
- 使用统计分析 (q值<0.05) 识别出具有歧视性的VOC.
主要成果:
- 确定了27种有区别的挥发性有机化合物,包括化物,醇和.
- 发现了可以区分S. pyogenes与S. pneumoniae和S. intermedius的候选生物标志物.
- 检测到高产的VOCs表明S. pyogenes在体外.
结论:
- 细菌的VOC可以作为S. pyogenes的生物标志物.
- 基于呼吸的诊断是可行的检测链球菌喉炎.
- 这种方法可以带来更快,更准确的诊断和治疗链球性喉炎.
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