蛋白质分离的某些病毒性相关基因可以预测抗生素敏感性,甚至感染源
Narges Jafari1, Roya Ahmadrajabi1, Omid Tadjrobehkar1,2
1Department of Medical Bacteriology & Virology, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.
International journal of microbiology
|November 19, 2025
概括
这项研究调查了Proteus细菌中的毒性相关基因,发现一些基因可以预测抗生素耐药性,并区分社区获得和医院获得的菌株. 还确定了有效的抗生素对抗蛋白质分离物.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 研究了与毒性相关的基因 (VAG),抗生素耐药性和Proteus分离物中的样本来源之间的联系.
- 专注于Proteus mirabilis和Proteus vulgaris,它们是常见的细菌病原体.
研究的目的:
- 为了确定VAGs和Proteus物种抗生素耐药性模式之间的关系.
- 探索VAG作为生物标志物的潜力,以根据获取来源 (社区与医院) 来区分临床隔离物.
- 为了确定有效的抗生素对抗蛋白菌感染.
主要方法:
- 使用磁盘扩散方法进行抗生素敏感性测试.
- 使用组合双盘协同试验检测扩展光谱β-乳酸酶.
- 通过聚合酶链反应 (PCR) 和ERIC-PCR指纹检测识别了八种VAG,用于P. mirabilis.
主要成果:
- 对三甲胺-硫甲醇 (P. mirabilis) 和素 (P. vulgaris) 观察到高耐药率.
- 6%的P.奇迹菌分离物是多药耐药 (MDR).
- 社区获得的 (CA) 隔离体比医院获得的 (HA) 隔离体具有更高的毒性,zapA和atfA分别是最常见和最不常见的VAG. mrpA和atfA基因预测了抗生素敏感性,rsbA区分了CA和HA分离物.
结论:
- 与HA分离物相比,CA Proteus分离物具有更高的毒性潜力.
- 推使用阿米卡辛,托布拉米辛和美罗作为有效的抗生素对抗Proteus.
- 某些VAG作为预测抗生素易感性和区分Proteus分离物的生物标志物具有前景,需要进一步调查.
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