透露了宏类耐药性的新机制,通过
Na Wang1,2,3, Xiaogang Xu1,2, Li Xiao4
1Institute of Antibiotics, Huashan Hospital, Fudan University, Shanghai, China.
Frontiers in cellular and infection microbiology
|June 7, 2023
概括
在Mycoplasma pneumoniae中对宏类耐药性的担忧越来越大. 与其他类化合物相比,米德卡米辛不太可能诱导耐药性,这表明它有可能作为对敏感菌株的第一线治疗.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 药理学 药理学是指药理学的学科.
背景情况:
- 肺炎菌会导致严重的呼吸道感染.
- 麦克罗利德是主要的治疗方法,但在全球范围内,耐药性正在增加.
- 对于儿科患者而言,存在有限的替代治疗方法.
研究的目的:
- 研究M. pneumoniae.中的新型宏类耐药机制.
- 评估不同宏类物质在诱导耐药性的潜力.
- 识别具有较低抗性选择倾向的宏类.
主要方法:
- 在实验室中,使用五种宏化物对M. pneumoniae突变的选择.
- 监测抗微生物敏感性和耐药性突变.
- 耐药突变的全基因组测序. 耐药突变的全基因组测序.
主要成果:
- 罗西胺素诱导耐药性最快;米德胺素是最慢的.
- 特定的23S rRNA突变与对14/15成员宏酸 (C2617A/T,A2063G,A2064C) 和16成员宏酸 (A2067G/C) 的耐药性相关.
- 米德卡米诱导的突变只对16个成员的宏类药物表现出耐药性,而不是14/15个成员的.
结论:
- 梅德卡米辛在诱导广泛的宏类耐药性方面具有较低的潜力.
- 诱导对米德卡米的耐药性是16个成员的宏化物特有的.
- 米德卡米辛可能是对易受M. pneumoniae感染的有价值的第一线治疗选择.
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