基因组流行病学和erm(B) 介导的Campylobacter中的宏化物耐药性的演变
Fen Gao1, Frances M Colles2, Seungwon Ko2
1Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, PR China.
Microbial genomics
|October 8, 2025
概括
坎比洛巴克特的宏类耐药性正在上升,这是由于 erm(B) 基因. 禽类是关键的储备,水平基因转移推动了传播,需要更好的抗菌药物管理和监测.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 流行病学 流行病学
背景情况:
- 坎比洛巴克是一个重要的食物传染病原体.
- 坎比洛巴克的抗菌素耐药性增加是一个全球性的健康问题.
- 特别令人担忧的是,Erm(B) 介导的宏化物耐药性的出现.
研究的目的:
- 调查带有 erm(B) 的临床坎皮洛巴克特菌分离体的基因组特征和流行病学.
- 分析上海的单独样本和全球数据集.
- 确定 erm(B) 传输的机制和储存库.
主要方法:
- 临床Campylobacter分离物的基因组测序.
- 遗传学和泛基因组的比较分析.
- 对公开可用的菌株的全球数据集的分析.
主要成果:
- 16%的临床隔离物是抗红素的;其中23.8%携带了erm.
- 横向基因转移是传播的主要机制.
- 禽类被确定为人类感染的关键储存库.
结论:
- 禽畜生产需要加强对抗微生物药物的管理.
- 有针对性的监测计划对于控制耐药性传播至关重要.
- 这些发现加深了对Campylobacter erm(B) 流行病学的理解.
相关概念视频
Development of Antibiotic Resistance
1.3K
Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.3K
Genomic DNA in Prokaryotes
48.3K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
48.3K
Antibiotic Selection
59.4K
Overview
59.4K
Genome Size and the Evolution of New Genes
9.0K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
9.0K
Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
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...
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...
2.6K
Mismatch Repair
43.5K
Overview
43.5K


