نتایج جستجو برای: entrococcus faecalis
تعداد نتایج: 7469 فیلتر نتایج به سال:
Enterococcus faecalis is becoming an increasingly important opportunistic pathogen worldwide, especially because it can cause life-threatening nosocomial infections. Treating E. faecalis infections has become increasingly difficult because of the prevalence of multidrug-resistant E. faecalis strains. Because bacteriophages show specificity for their bacterial hosts, there has been a growth in i...
Clustered, Regularly Interspaced Short Palindromic Repeats and their associated Cas proteins (CRISPR-Cas) provide prokaryotes with a mechanism for defense against mobile genetic elements (MGEs). A CRISPR locus is a molecular memory of MGE encounters. It contains an array of short sequences, called spacers, that generally have sequence identity to MGEs. Three different CRISPR loci have been iden...
INTRODUCTION The purpose of this study was to compare the antimicrobial efficacy of sodium hypochlorite (SH) and calcium hypochlorite (CH) against Enterococcus faecalis (E. faecalis) using quantitative real-time polymerase chain reaction (qPCR) analysis and also to compare their cytocompatibility on L929 murine fibroblasts using Mossman's tetrazolium toxicity (MTT) assay. METHODS AND MATERIAL...
Ampicillin-ceftriaxone combination therapy has become a predominant treatment for serious Enterococcus faecalis infections, such as endocarditis. Unfortunately, ceftriaxone use is associated with future vancomycin-resistant enterococcus colonization. We evaluated E. faecalis in an in vitro pharmacodynamic model against simulated human concentration-time profiles of ampicillin plus ceftaroline, ...
The aim of this study was to evaluate the antibacterial efficacy copper added chitosan nanoparticles (CU-CNPs) as an irrigation solution with different irrigants in terms eliminating Enterococcus Faecalis (E. faecalis) from root canals. Fifty mandibular premolar teeth were prepared and infected E. faecalis for 21 days. After incubation period, samples randomly divided into a control group irrig...
مقدمه و هدف: گیاه چویر با نام علمی Frulago angolata متعلق به خانواده چتریان و دارای حدود سی و پنج گونه در سرتاسر دنیاست که حدود هفت گونه از آن در ایران رویش دارد. این گیاه که بومی ایران و خاص منطقه غرب است از دیرباز به صورت سنتی و با افزودن به مواد لبنی به خصوص روغن، با ایجاد طعم بسیار مطبوع از فاسد شدن آن جلوگیری و با قرار دادن آن در لابلای گوشت برای مدتی آن را نگهداری می کرده است. موا...
The initiation of protein synthesis by Streptococcus faecalis R grown in folate-free culture occurs without N-formylation or N-acylation of methionyl-tRNA(f) (Met). Methionyl-tRNA synthetase and methionyl-tRNA formyltransferase were partially purified from S. faecalis grown under normal culture conditions in the presence of folate (plus-folate); the general properties of the enzymes were determ...
Sir, Vancomycin-resistant enterococci constitute an increasing clinical problem in the USA, and clonal dissemination of vancomycin-resistant isolates among hospitals, especially Enterococcus faecium, has been described. In Europe, detection of vanA enterococci in the clinical setting is less frequently reported and few reports exist of clonal dissemination of resistant isolates among different ...
BACKGROUND Enterococcus faecalis plays a dual role in human ecology, predominantly existing as a commensal in the alimentary canal, but also as an opportunistic pathogen that frequently causes nosocomial infections like bacteremia. A number of virulence factors that contribute to the pathogenic potential of E. faecalis have been established. However, the process in which E. faecalis gains acces...
A recurrent case of left-sided endocarditis caused by high-level aminoglycoside-resistant Enterococcus faecalis was successfully treated with ceftaroline and daptomycin. This combination demonstrated excellent synergy in vitro. Mechanistically, ceftaroline enhanced binding of daptomycin to the cell membrane and sensitized E. faecalis to killing by human cathelicidin LL-37, a cationic innate hos...
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