نتایج جستجو برای: biofilm formation
تعداد نتایج: 540113 فیلتر نتایج به سال:
Introduction Biofilm can be called a bacterial community that often forms on living or non-living surfaces and is common in natural, industrial, and hospital environments. Klebsiella pneumoniae as a pathogen has the potential to produce biofilms. Understanding biofilm formation in biofilm-forming bacteria is important. The aim of this study was to investigate the biofilm formation in isolates ...
background and objectives: pseudomonas aeruginosais an important opportunistic pathogen. the mucoid strains of p. aeruginosa produce hyper viscous substances consisting mainly of alginate which have important roles in formation of biofilm.we investigated the effect of essential oil of matricaria chamomilla l. on biofilm production in p. aeruginosa. material and methods: p. aeruginosa 8821m was ...
Background and Objective: Microbial biofilms are responsible for 65% of human infections, and are resistance to antibiotics. Pseudomonas aeruginosa is one of the most important biofilm producing bacteria. This review tries to explain the last mechanisms of Pseudomonas aeruginosa biofilm formation, the reasons for its resistance to antimicrobial agents, as well as new preventive measures and a...
background: acinetobacter baumannii is commonly resistant to nearly all antibiotics due to presence of antibiotic resistance genes and biofilm formation. in this study we determined the presence of certain antibiotic-resistance genes associated with biofilm production and the influence of low iron concentration on expression of the biofilm-associated protein gene (bap) in development of biofilm...
Background & Aims: The antimicrobial effects of nickel nanoparticles on some bacterial strains such as S. aureus and E.coli have been shown in limited studies. The aim of this study was to investigate the inhibitory effects of nickel nanoparticles on biofilm formation by mupirocin resistant S. aureus isolates. Materials & Methods: In this study, 150 S. aureus isolates were collected fro...
Objective(s): Staphylococcus aureus can cause several infections. Its capability to form biofilm has been reported to be a vital property involved in the bacteria’s pathogenesis. Various genes contributing to biofilm formation have not yet been completely clarified. This study was designed to evaluate the factors influencing adherence and biofilm formation in S. aureus...
Background and purpose:Staphylococcus epidermidis is an opportunistic pathogen that is involved in the development of infections associated with the use of implants and medical devices. Biofilm formation is one of the most important virulence factors of this microorganism, which vastly depends on various factors, including different proteins. In the present study, the expression levels of three...
Background: Acinetobacter baumannii is commonly resistant to nearly all antibiotics due to presence of antibiotic resistance genes and biofilm formation. In this study we determined the presence of certain antibiotic-resistance genes associated with biofilm production and the influence of low iron concentration on expression of the biofilm-associated protein gene (bap) in development of biofilm...
Background: A few reports confirm the ability of Helicobacter pylori to form biofilm. However, conclusive data do not exist concerning the factors that favor this ability.Objectives: Evaluation of the factors associated with the biofilm formation ability of H. pylori including bacterial, physical and chemical, and environmental factors was the research’s aim.Materials and Methods: H...
Background: Klebsiella pneumoniae is an opportunistic microorganism causing nosocomial infection all over the world .This study aimed to investigate the prevalence of biofilm formation in K. pneumoniae isolated from patients and its correlation with the virulence factors. Materials and Methods: Biochemical tests were used for the identification of K. pneumonia isolated from patients referred to...
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