抗生素暴露下的益生菌细菌中的纳米机械变化:对Lactobacillus生物膜形成的影响
1Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland.
概括
这项研究揭示了5 - 尼托福抗生素如何改变益生菌Lactobacillus细菌的作用.
科学领域:
- 微生物学 微生物学
- 生物物理学的生物物理.
- 纳米技术 纳米技术
背景情况:
- 了解微生物细胞表面特性对于预测行为至关重要.
- 益生菌细菌如乳杆菌在健康中起着至关重要的作用.
- 抗生素对有益微生物的影响需要研究.
研究的目的:
- 为了研究在暴露于5-尼托福兰抗生素下的Lactobacillus中的纳米机械变化.
- 分析尼托福兰,法拉佐利和尼托福拉对细菌性质的影响.
- 阐明这些抗生素对益生菌细菌的作用机制.
主要方法:
- 原子力显微镜 (AFM) 被用来探测细菌的纳米力学.
- 分析细胞形态,地形和粘附参数.
- 在96小时内测量模和粘附能.
主要成果:
- 抗生素暴露增加了细胞的长度和高度,同时降低了粘附力.
- 的模量和粘附能降低,但不影响细胞完整性.
- 在Lactobacillus菌株中观察到显著的形态和纳米机械变化.
结论:
- 5 - 尼托夫抗生素会影响非向益生菌,可能会损害生物膜的形成.
- 观察到的修改表明,在对抗生素的反应中存在多层次的适应机制.
- 抗生素诱导的表面与体积比率的变化可能会将细胞事件与生物膜结果联系起来.
相关概念视频
Development of Antibiotic Resistance
42
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...
42
Microorganisms in Medicine and Therapeutics
64
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
64
Biofilms
60
Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...
60


