在接受抗微生物药物治疗的住院患者中,从菌素敏感的菌体中出现抗菌素耐药的菌体
Jessin Janice1, Theresa Maria Wagner2, Karina Olsen3
1Research Group for Host-Microbe Interactions, Department of Medical Biology, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway; Norwegian National Advisory Unit on Detection of Antimicrobial Resistance, Department of Microbiology and Infection Control, University Hospital of North Norway, Tromsø, Norway.
抗生素治疗可以驱动患者的抗万科米辛抗性肠球菌 (VRE) 的演变. 这项研究表明,移动遗传元素在抗生素压力下,在肠道微生物群中转移万科米辛耐药性基因.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 传染性疾病 传染性疾病
背景情况:
- 肠球菌是一种机会性病原体,已知会进化抗菌素耐药性.
- 抗菌素的肠球菌 (VRE) 是重要的医院病原体.
- 在肠球菌中失去万科胺素敏感性的机制尚不清楚.
研究的目的:
- 为了调查患者内部的进化,万科米辛耐药性在Enterococcus faecium.
- 为了确定驱动菌素敏感肠球菌 (VSE) 转化为VRE.的遗传机制.
主要方法:
- 两名重症患者的VSE和VRE分离物的比较基因组学.
- 对经过多次抗生素治疗的Enterococcus faecium基因组的分析.
主要成果:
- 在两位患者的万科米辛治疗后,出现了VRE菌株.
- 观察到携带vanB基因的移动遗传元素的水平传播.
- 广泛的抗生素压力似乎促进了耐药性决定因素的转移.
结论:
- 这项研究说明了通过在抗生素压力下的移动遗传元件对万科米辛耐药性的患者内部演变.
- 这些发现突出了抗生素压力的作用,推动了肠道微生物群内的耐药性基因传播.
- 为进一步研究抗生素应激动态和微生物相互作用提供了基础.
更多相关视频
12:03Antimicrobial Synergy Testing by the Inkjet Printer-assisted Automated Checkerboard Array and the Manual Time-kill Method
Published on: April 18, 2019
08:58Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
相关概念视频
Antibiotic Selection
Healthcare Associated Infections II: Preventive Measures
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic
HAIs significantly increase the cost of health care. Extended stays in healthcare institutions, increased disability, increased costs of medications, including specialized antibiotics, and prolonged recovery times add to the patient's expenses and the healthcare institution and funding bodies.
Combined Effects of Drugs: Synergism
Such synergistic combinations...
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
