双可以通过诱导代谢适应和自然转变来促进抗生素耐药性
Jingyu Qin1, Xin Qi2, Yuejiao Li2
1College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; School of Life Sciences, Department of Immunology and Microbiology, Department of Chemical Biology, Southern University of Science and Technology, No. 1088, Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong, China.
Journal of hazardous materials
|March 30, 2024
概括
双醇通过促进等离子体吸收和细胞变化,显著增加细菌中抗生素耐药性基因 (ARG) 的传播. 这发生在氧化应激以外的其他机制中,导致水生环境中的耐药微生物组.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 毒理学 毒理学 毒理学
背景情况:
- 抗生素耐药性基因 (ARG) 构成了严重的全球健康威胁.
- 环境化学物质,如双在ARG传播中的作用尚不清楚.
- 双是广泛使用的塑化剂,具有潜在的环境影响.
研究的目的:
- 调查双醇是否影响细菌对ARG的吸收.
- 阐明双可能影响ARG传播的潜在机制.
- 评估双对水生生态系统中的微生物群落的长期影响.
主要方法:
- Acinetobacter baylyi ADP1暴露于四种常见双醇 (BPA,BPS,BPF,BPAF) 的环境相关度.
- 对ARG传播率和细菌适应机制的分析.
- 长期暴露水生鱼对双醇,以检查对肠道微生物群的影响.
主要成果:
- 双醇显著促进了A. baylyi ADP1中的ARG传播的2.97-3.56倍.
- 获得耐药性涉及等离子体的吸收和代谢适应,包括增强的囊生产和DNA吸收机械,非活性氧物种.
- 鱼类长期暴露导致肠道细菌群落由耐药微生物主导.
结论:
- 双醇通过涉及细胞适应的新机制增强了ARG的自然转化.
- 这些发现揭示了由于环境化学物质而导致抗生素耐药性升高的低估风险.
- 需要进一步研究结构相关化学物质对ARG传播的影响.
更多相关视频
相关概念视频
Antibiotic Selection
53.4K
Overview
53.4K
Drug Biotransformation: Overview
2.4K
Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
2.4K
Defense Against Bacterial Pathogens
1.4K
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...
1.4K
Factors Affecting Drug Biotransformation: Physicochemical and Chemical Properties of Drugs
241
A drug's physicochemical properties fundamentally influence its metabolism. For instance, a drug's molecular size and shape critically determine its interaction with enzymes and transporters — larger drugs may face difficulty reaching enzyme active sites, altering their metabolic pathways. The pKa of a drug, which establishes its ionization state, can impact its solubility and absorption, thereby influencing metabolism.
The drug's acidity or basicity is essential in...
The drug's acidity or basicity is essential in...
241
Mismatch Repair
40.1K
Overview
40.1K
Genomic DNA in Prokaryotes
43.8K
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...
43.8K


