银纳米粒子和REP-PCR类型定型对从各种来源中分离出来的金黄色葡萄球菌的影响
Eman M Elghazaly1, Helmy A Torky2, Rasha Gomaa Tawfik2
1Microbiology Department, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt. emanmoneer1@gmail.com.
Scientific reports
|September 23, 2024
概括
来自COVID-19患者,食物和动物的多药耐药黄金葡萄球菌菌株表现出生物膜形成. 银纳米颗粒诱导细菌细胞损伤,突出显示了对这些动物传染病原体的潜在治疗应用.
科学领域:
- 微生物学 微生物学
- 抗微生物耐药性 抗微生物耐药性
- 纳米技术纳米技术
背景情况:
- 黄金葡萄球菌 (Staphylococcus aureus) 是一个重要的病原体,抗生素耐药性越来越强.
- 了解S. aureus在人类,动物和食物之间传播的动态至关重要.
- 多药耐药 (MDR) 菌株的出现需要新的治疗策略.
研究的目的:
- 研究抗生素耐药性,生物膜形成,以及银纳米颗粒 (Ag-NPs) 对黄金菌株的影响.
- 分析从COVID-19患者,受污染的食物和生病的牲畜中分离出来的金黄色细菌的遗传关系.
- 探索S. aureus在马特鲁省的动物感染潜力.
主要方法:
- 从各种来源分离和识别金黄色葡萄球菌.
- 抗生素敏感性测试和生物膜测试.
- 扫描电子显微镜检测Ag-NP诱导的形态变化.
- 用于分子类型定型的重复性外原蛋白巴林德罗姆PCR (REP-PCR).
主要成果:
- 所有15种S. aureus菌株都具有多药耐药性,并且能够形成生物膜.
- 电子显微镜揭示了Ag-NPs导致细菌细胞表面损伤和破裂.
- REP-PCR分析确定了4个不同的群,表明食物,COVID-19患者和牲畜之间的遗传关系和潜在的动物传播.
结论:
- 来自马特鲁省不同来源的金黄色葡萄球菌菌株表现出显著的多药耐药性和生物膜形成能力.
- 银纳米颗粒显示出作为一种抗菌剂的潜力,用于对抗S. aureus.
- 分子类型测定证实了黄金杆菌的动物传播,强调了需要"一个健康"的方法.
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