在韩国从猪肉生产链中分离出来的新兴多药耐药Clostridium perfringens的分子特征
Yeona Kim1, Hyeonwoo Cho2, Beomsoon Jang2
1Department of Digital Anti-aging and Healthcare, Inje University, Gimhae, 50834, Republic of Korea.
Food microbiology
|February 14, 2025
概括
在韩国猪肉生产中,Clostridium perfringens是普遍存在的,显示出多种药物耐药性和潜在的动物传染. 这项研究强调了病原体通过质粒传播,强调了食品安全的"One Health"方法.
科学领域:
- 微生物学 微生物学
- 食品安全 食品安全
- 基因组学就是基因组学.
背景情况:
- 杆菌是人类和动物中食源性疾病和胃肠道疾病的重要原因.
- 猪肉生产链内的有效监测对于管理病原体传播风险至关重要.
研究的目的:
- 确定Clostridium perfringens在韩国猪肉生产中的流行率,抗微生物耐药性和基因组特征.
- 评估Clostridium perfringens从猪传播到人类的动物传播潜力.
主要方法:
- 在猪场,屠宰场和零售市场进行流行调查.
- 毒素类型和抗菌素敏感性测试.
- 全基因组测序和遗传学分析.
主要成果:
- 总体而言,Clostridium perfringens的流行率为23.6%,农场的发病率更高 (48.8%).
- 大多数隔离物是A型 (98.9%),其中29.1%携带β-2毒素基因.
- 确定了多药耐药的分离物,对四环素有很高的耐药性 (65.1%). 全基因组测序揭示了关键的抗微生物耐药性和毒性基因.
- 遗传学分析将韩国分离物与来自中国的人类临床菌株联系起来,这表明OPTRA基因通过等离子体介导传播.
结论:
- 这项研究提供了关于韩国猪肉生产中Clostridium perfringens的关键基线数据.
- 这些发现表明动物传播的潜力,以及在东亚各地传播抗微生物药物耐药性基因 (如optrA) 中特定塑的作用.
- 一个个个个个个的.
- 一个健康,一个健康.
- 这种方法对于控制食品生产系统中的Clostridium perfringens至关重要.
相关概念视频
Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Clinical Significance of Antibiotic Resistance
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...


