在中国上海,从不同食品样本中鉴定出聚胺抗性基因mcr-10
Zhang Hongzhi1, Chen Wenjie1, Lu Xiaoyu2
1Shanghai Municipal Center for Disease Prevention and Control, Shanghai, People's Republic of China.
Foodborne pathogens and disease
|September 27, 2024
概括
在上海食品样本中检测到的Escherichia kobei和大肠杆菌中,发现了新型mcr-10基因,它赋予了高水平的多素B耐药性. 持续监测食品中的抗菌素耐药性基因至关重要.
科学领域:
- 微生物学 微生物学
- 食品安全 食品安全
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 抗微生物药物耐药性的出现对公共卫生构成重大威胁.
- 聚米克辛是关键的最后手段抗生素,耐药性是一个日益关注的问题.
- 全球范围内越来越多地检测到等离子体介导的胆固醇抗性基因 (mcr).
研究的目的:
- 调查来自上海的食品样本中的等离子体介导的mcr基因的存在和特征.
- 为了识别携带mcr-10基因的宿主细菌和质粒.
- 评估对食品安全和公共卫生的影响.
主要方法:
- 在2019年至2022年期间收集的6800个食品样本的回顾性分析.
- 对mcr-10基因的分子检测和表征.
- 使用全基因组测序和结合实验进行等离子体定位和细菌鉴定.
主要成果:
- 在食品样本中发现了两例等离子体介导的mcr-10病例.
- 在Escherichia kobei中从即食食品中发现的结合性等离子体 (pEC1918-mcr10) 上发现了mcr-10基因,使其具有高水平的多素B耐药性.
- 一种携带mcr-10的非结合性等离子体 (pEC2001-mcr10) 被鉴定为来自的大肠杆菌;这两种基因与ISEc36相邻.
结论:
- 这项研究报告了中国上海食品中mcr-10基因的出现.
- 这些发现强调了积极监测关键耐药基因在整个食品生产链中的重要性.
- 持续监测对于缓解抗菌素耐药性的传播至关重要.
关键词:
埃舍里希亚大肠杆菌 (Escherichia coli) 是一个大肠杆菌.埃斯赫里希亚科贝伊 (Escherichia kobei) 是一种植物.结合性等离子体mcr-10-10的使用情况.聚氨酸是多种类型的.更多相关视频
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