相关实验视频
Updated: May 21, 2025

08:40
Establishment and Characterization of UTI and CAUTI in a Mouse Model
Published on: June 23, 2015
19.9K
复杂标准配方作为协同作用和改善抗菌活性对尿路感染的尿病原菌大肠杆菌的例子
Steffen Boertz1, Madhubani Dey2, Fabian Herrmann1
1Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Germany.
Planta medica
|March 20, 2025
概括
这项研究表明,结合特定的草药,如树和金,通过减少细菌粘附,增强其预防尿路感染的能力. 改进的提取方法释放了这些天然化合物的抗粘合潜力.
科学领域:
- 植物化学 植物化学
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 传统上,草药混合物用于尿路感染 (UTI).
- 一个特定的德国配方结合了Betula sp.,Agropyron repens,Solidago gigantea和Ononis spinosa. 这种植物的种类.
研究的目的:
- 为了研究一个结合的草本提取物与单独提取的成分的抗粘合作用.
- 确定负责抗UTI效应的活性化合物和机制.
主要方法:
- 组合和单独的草本提取物的制备和比较.
- 使用UPEC菌株和膀细胞系 (T24,RT4) 的体外试验.
- 液体染色学-质谱学 (LC-MS) 用于化合物识别.
- 基因表达分析 (RT-qPCR) 用于研究细菌机制.
主要成果:
- 结合的提取物,但不是单独的提取物,在UPEC CFT073.3.中降低了1型的活性.
- 由Solidago sp.增强的Betula spp.的马洛尼化达马兰三烯被确定为关键的抗粘性化合物.
- 一个用达马兰增强的部分 (DEF) 显示出显著的抗粘性作用和调节的UTI89基因表达 ( fimC, fimD, fimH的下调; fliC的上调).
结论:
- 特定植物成分的组合,特别是Betula sp. 和 Solidago gigantea,对于有效的抗尿路感染特性至关重要.
- 树叶成分的提取改善增强了抗粘性作用,验证了组合草药制剂的使用.
相关概念视频
Combined Effects of Drugs: Synergism
3.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
3.7K
Surface Membrane Barriers
794
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
794
Drug Elimination by Renal Route: Tubular Secretion
2.1K
Once the process of glomerular filtration is completed, blood carrying unfiltered drug molecules traverses through efferent arterioles and makes its way into the peritubular capillaries in the proximal tubule. A variety of carriers play a pivotal role in actively secreting drugs from these peritubular capillaries into the tubular fluid. The organic anion transporter transfers acidic drugs, against an electrochemical gradient, from the peritubular capillaries into the renal tubule cells and...
2.1K
Antibiotic Selection
52.1K
Overview
52.1K

