探测菌素的潜力:一项关于从假肢关节感染中检测Staphylococcus epidermidis的敏感性和耐药性的研究
Rebecka Widerström1, Mia Aarris2, Susanne Jacobsson3
1Department of Laboratory Medicine, Region Västmanland, Västerås, Sweden.
The Journal of antimicrobial chemotherapy
|September 6, 2024
概括
素 (FOF) 显示出治疗多药耐药性葡萄球菌表皮病 (MDRSE) 引起的假肢关节感染 (PJI) 的潜力. 在这项研究中,表型耐药性和fosB基因是罕见的,这表明FOF是一个可行的选择.
科学领域:
- 传染性疾病 传染性疾病
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 假肢关节感染 (PJI) 具有有限的治疗选择,特别是那些由多药性耐药性葡萄球菌表皮菌 (MDRSE) 引起的.
- 菌素 (FOF) 是一种潜在的治疗方法,但对S. epidermidis (包括MDRSE) 的敏感性数据很少.
研究的目的:
- 评估S. epidermidis从PJIs分离到斯福米辛 (FOF) 的表型和基因型敏感性.
- 评估商业阿加稀释 (AD) 面板和全基因组测序 (WGS) 对于确定FOF耐药性的有用性.
主要方法:
- 使用内部和商业AD面板进行MIC确定.
- 通过全基因组测序 (WGS) 分析与FOF耐药性相关的基因和变异.
主要成果:
- 多重耐药性的高流行率 (83%的MDRSE).
- 斯福米辛 (FOF) 除了一种隔离物外,抑制了所有隔离物 (MIC>256 mg/L).
- 基因组分析表明,与FOF耐药性相关的fosB仅存在于耐药性隔离物中.
结论:
- 对FOF的表型耐药性和FOB的存在在PJI的S. epidermidis中是罕见的,支持FOF作为治疗选择.
- 商业AD面板显示出良好的可重现性,但基本一致性低于最佳.
- 来自WGS的基因型耐药性发现需要对像FosB. fosB.这样的特定耐药性基因进行批判性评估.
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