克隆重复元素聚合酶的连锁反应模式
Niloofar Ghahari1, Arezoo Mirzaei1, Bahram Nasr Esfahani1
1Department of Bacteriology and Virology, Faculty of Medicine, Isfahan University of Medical Science, Isfahan, Iran.
IJID regions
|February 10, 2025
概括
Pseudomonas aeruginosa 在糖尿病足部感染中很普遍,通常表现为多种药物耐药性和生物膜形成. 医院卫生监测对于控制这些耐药菌株的传播至关重要.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 遗传学 遗传学 是一个
背景情况:
- 糖尿病足部感染 (DFU) 是一个重大的临床挑战.
- Pseudomonas aeruginosa 是一个关键的病原体,使DFU治疗复杂化.
- 了解P. aeruginosa的流行和耐药性对于有效的DFU管理至关重要.
研究的目的:
- 为了确定P. aeruginosa在糖尿病足的流行率.
- 评估P. aeruginosa分离物的抗菌耐药性,生物膜形成和毒性基因配置文件.
- 调查DFU的P. aeruginosa菌株的克隆性和与医院相关的传播.
主要方法:
- 从66名DFU患者收集了样本.
- 评估P. aeruginosa的流行,抗菌敏感性和生物膜生成,使用磁盘扩散和晶体紫色测定.
- 利用聚合酶链反应来检测耐药性和毒性基因 (blaTEM, blaSHV, toxA, alg44, mucA) 和重复元素聚合酶链反应进行克隆性分析.
主要成果:
- 对西普洛素 (58.6%),托布拉米辛 (57.1%) 和伊米佩内姆 (55.1%) 观察到高耐药率.
- 多种药物耐药性 (62.5%) 和强大的生物膜生成 (41.3%) 是常见的.
- 毒性基因toxa (82%),alg44 (93.1%),muca (75.8%) 和blaTEM (65.5%) 的患病率显著;blaSHV没有 (0%).
- 在同一医院的分离物中确定了克隆关系.
结论:
- 在DFU中的P. aeruginosa菌株表现出显著的多药性耐药性和生物膜形成能力.
- 特定毒性基因的存在有助于这些菌株的致病性.
- 与医院相关的克隆传播突出了加强感染控制和卫生实践监督的必要性,以防止传播.
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