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Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR RS-PCR
Published on: November 4, 2016
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从人类和动物中分离出来的Staphylococcus saprophyticus的特征
Paulina Prorok1, Karolina Bierowiec1, Milena Skrok1
1Department of Epizootiology and Clinic of Birds and Exotic Animals, Division of Infectious Diseases and Veterinary Sciences, 50-365 Wrocław, Poland.
International journal of molecular sciences
|July 29, 2025
概括
造成尿路感染的葡萄球菌 (Staphylococcus saprophyticus) 在人类和伴侣动物中表现出显著的多药性耐药性和毒性. 这突显了从物传播动物性传染的可能性,强调了需要进一步研究的必要性.
科学领域:
- 微生物学 微生物学
- 兽医医学 兽医医学 兽医医学
- 传染性疾病 传染性疾病
背景情况:
- 葡萄球菌saprophyticus (S. saprophyticus) 是一种机会性病原体,在人类中引起尿路感染.
- 它在兽医中的作用和作为物种间传播的储存库的潜力尚未得到充分研究.
- 伴侣动物可能携带S. saprophyticus,有助于耐药病原体的传播.
研究的目的:
- 从流行病学上描述人类,狗和猫的S. saprophyticus菌株.
- 为了确定毒性因素和抗菌素耐药性概况.
- 评估动物传播的可能性.
主要方法:
- 分析了61种S. saprophyticus菌株,使用MALDI-TOF MS和PCR进行识别.
- 通过盘扩散,微稀释和PCR评估了抗微生物敏感性和耐药性基因 (blaZ,mecA, ermA, ermB,tetM,tetK).
- 通过使用Galleria mellonella感染模型和在不同温度下形成生物膜来评估致病潜力.
主要成果:
- 所有菌株都携带了blaZ和mecA基因;大多数携带了erMA,erMB,tetM和tetK抗性基因.
- 在34.4%的菌株中发现了多药耐药性 (MDR).
- 生物膜的形成取决于温度,在37°C时最强. 所有菌株都表现出G. mellonella的致病性,猫和狗分离的死亡率更高.
结论:
- 来自人类和伴侣动物的S. saprophyticus菌株表现出显著的毒性和多药性耐药性.
- 动物作为S. saprophyticus的潜在储存库,促进动物传播.
- 动物菌株的基因型和表型耐药性需要关注公共卫生监测.
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