欧基尼亚单花:对抗多药耐药细菌的一种有希望的天然替代品
M R A Ferreira1, L B Lima1, E C F Santos1
1Universidade Federal de Pernambuco, Departamento de Ciências Farmacêuticas, Laboratório de Farmacognosia, Recife, PE, Brasil.
Brazilian journal of biology = Revista brasleira de biologia
|August 16, 2023
概括
尤金尼亚单花叶提取物显示出抗氧化和抗菌性质. 它的丰富分量增强了抗生素对抗多药耐药细菌的有效性,提供了一个有前途的天然替代品.
科学领域:
- 植物化学 植物化学
- 药理学 药理学是指药理学的学科.
- 微生物学 微生物学
背景情况:
- 多药耐药 (MDR) 细菌构成了严重的全球健康威胁.
- 天然产品,如尤金尼亚单一花的提取物,正在探索新型抗菌剂.
- 了解植物提取物的化学成分和生物活性对于药物发现至关重要.
研究的目的:
- 为了评估Eugenia uniflora Linn.的化学成分,抗氧化剂和抗菌活性. 叶子提取物. 叶子提取物.
- 为了研究Eugenia uniflora提取物与抗生素结合对抗MDR细菌的潜力.
- 确定负责观察到的生物活性的关键化合物.
主要方法:
- 通过轮提取进行原油提取,然后进行分化.
- 用于化合物识别的染色学分析 (酸,酸,米里素).
- 使用DPPH•和ABTS•+试验评估的抗氧化能力.
- 通过最小抑制/杀菌度 (MIC/MBC) 确定对22种细菌菌株的抗菌活性.
- 协同效应使用检查板和模块化试验与抗生素对抗MDR菌株进行评估.
主要成果:
- 尤金亚单花生原料提取物和乙酸盐分离物 (EAF) 显示出抗氧化活性,与黄含量有关.
- 在EAF表现出抗微生物活性,特别是针对格拉姆阳性菌株.
- EAF与西普罗素和热胺素的组合显示出对抗耐药菌株的协同作用,包括Pseudomonas aeruginosa.
- 鉴定出了酸,酸和基,在EAF中进行缩.
结论:
- 尤金尼亚单花叶提取物及其EAF具有显著的抗氧化和抗菌特性.
- 在EAF显示潜在的辅助疗法,以对抗MDR细菌感染.
- 黄酸和酸有助于观察到的生物活性,突出了尤金尼亚单花作为天然治疗剂的来源.
相关概念视频
Development of Antibiotic Resistance
40
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...
40
Combined Effects of Drugs: Synergism
4.0K
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...
4.0K
Gene Regulation in Microbial Communities: Quorum Sensing
40
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
40
Antimicrobial Effectiveness
48
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
48
Antibiotic Selection
54.7K
Overview
54.7K
Biological Methods for Microbial Control
64
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
64


