与赫西丁相比,juglone对Enterococcus faecalis的抗菌和抗病毒活性较高
Rawan Yassin Nimir1, Homa Darmani2
1Department of Applied Biological Sciences and Genetic Engineering, Faculty of Science and Arts, Jordan University of Science and Technology, Irbid, Jordan.
Archives of oral biology
|January 11, 2026
概括
植物化合物juglone通过抑制酶和生物膜有效地对抗Enterococcus faecalis毒性,显示出治疗口腔感染的前景.
科学领域:
- 微生物学 微生物学
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 菌 (Enterococcus faecalis) 是持续性口腔和内牙感染的关键病原体.
- 目前的消毒剂,如化 (CHX) 有局限性.
- 植物性纳夫托基的Juglone需要对其抗微生物和抗病毒性质进行研究.
研究的目的:
- 为了比较juglone和CHX对E. faecalis的抗菌和抗病毒活性.
- 评估juglone作为替代品或辅助剂在管理E. faecalis感染中的潜力.
主要方法:
- 抗微生物测定:井扩散,MIC,MBC.
- 抗病毒性检测:酶抑制,生物膜形成,代谢活性,EPS产生,氧化应激标志物 (LDH,MDA,SOD,T-AOC).
- 相互作用研究:棋盘方法.
主要成果:
- 朱格隆表现出与CHX相当的抗菌活性,没有协同作用.
- 朱格隆显著抑制了E. faecalis病毒性因子 (caseinase,gelatinase,hemolysin),比CHX更有效.
- 与CHX相比,juglone在破坏成熟的生物膜和减少氧化应激标志物方面表现出更好的疗效.
结论:
- 朱格隆通过向酶活性,氧化应激和生物膜活力,有效地降低了E. faecalis的毒性.
- 尤格隆对已建立的生物膜特别有希望,这表明它有可能用于口腔感染管理.
- 进一步研究juglone的治疗潜力是有必要的.
相关概念视频
Hand hygiene
5.5K
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Hand washing...
5.5K
Antimicrobial Effectiveness
894
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...
894
Surface Membrane Barriers
2.6K
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...
2.6K
Gene Regulation in Microbial Communities: Quorum Sensing
497
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,...
497
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
Antimicrobial Proteins
12.9K
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
12.9K


