在伊朗的多药耐药黄金葡萄球菌分离物中研究1,2,3等级的整合子:一项多中心研究
Abolfazl Rafati Zomorodi1,2, Mohammad Motamedifar3, Karamatollah Rahmanian4
1Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
BMC infectious diseases
|December 19, 2024
概括
耐甲基西林黄金葡萄球菌 (MRSA) 和多药耐药 (MDR) 菌株在伊朗越来越令人担忧. 虽然整体素1类 (intI1) 患病率低于预期,但几乎所有intI1-阳性菌株都是MRSA和MDR.
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 是一个遗传学.
背景情况:
- 甲素耐药黄金葡萄球菌 (MRSA) 由于其高死亡率,对全球健康构成了重大挑战.
- 集成子是促进多药耐药 (MDR) 菌株传播的关键遗传元素.
- 这项研究研究了来自伊朗四个城市的黄金菌的1,2和3类整合子.
研究的目的:
- 为了确定Staphylococcus aureus分离物中1,2和3类整体素的流行率.
- 评估这些隔离品中的抗生素耐药性模式,包括MRSA和MDR表型.
- 为了将整合子存在与MRSA和MDR特征相关联.
主要方法:
- 对来自伊朗的雪拉兹,德黑兰,伊斯法罕和雅兹德的183个S. aureus分离物的分析.
- 使用生化和分子试验识别分离物.
- 抗生素敏感性测试 (Kirby-Bauer,微乳汁稀释) 和MLSB耐药性的D-测试.
- 对intI1,intI2和intI3基因的分子检测.
主要成果:
- 观察到的高耐药率:86.3%的红红素,66.1%的西普罗夫洛克萨,61.7%的克林达米. 所有的分离物都对线索利德和万科米敏感.
- 59.6%的分离物是MRSA,而78.1%是MDR.
- 在7.6%的隔离物中检测到intI1基因;intI2和intI3缺席. 所有intI1-阳性分离物 (14/183) 都是MRSA和MDR.
结论:
- 伊朗MRSA和MDR黄金杆菌的流行是令人担忧的.
- 虽然intI1的患病率低于之前的一些研究,但其存在与MRSA和MDR表型有很强的相关性.
- 需要进一步的研究来了解整合子在伊朗抵抗传播中的作用.
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