objectives we investigated the potential relationships between biofilm formation and prevalence of virulence genes (asa1, esp, cyla, and gele/spre), and antimicrobial resistance genes (aac (6’)/aph (2”) in enterococcus faecalis isolated from patients with urinary tract infection. patients and methods in this survey 95 e. faecalis isolates from patients with urinary tract infections staying at s...

introduction: this in vitro study compared the antibacterial efficacy of 2.5% sodium hypochlorite gel and 2.5% and 5.25% sodium hypochlorite solutions on enterococcus faecalis ( e. faecalis ) biofilm. methods and materials: the root canals of 60 extracted human single-rooted teeth were contaminated with e. faecalis and incubated for 6 weeks. the samples were randomly assigned to three experimen...

introduction: root canal treatment is based on elimination of intraradicular microorganisms. calcium hydroxide ca(oh) 2 is the most widely used material for canal dressing, however, enterococcus faecalis has been reported to be resistant bacteria in persistent apical periodontitis . the purpose of this study was to evaluate the efficacy of ca(oh) 2 on the elimination of intraluminal and intratu...

introduction: enterococcus faecalis ( e. faecalis ) has the ability to invade the dentinal tubules and resist high ph levels. as a result, calcium hydroxide (ch) is not much effective on this bacterium. in theory, nanoparticle calcium hydroxide (nch) has smaller size and high surface area that enables it to penetrate into the deeper layers of dentin and be more effective on e. faecalis. this in...

introduction: sodium hypochlorite (naocl) is an effective antimicrobial irrigant, however its toxic effects and deterrent odor are not ideal. carvacrol is an edible plant extract with anti-inflammatory and anti-bacterial properties that is effective against enterococcus ( e ) faecalis . the aim of this study was to evaluate carvacrol's antibacterial efficacy against e. faecalis bacteria as a fi...

introduction: all instrumentation techniques have been reported to be associated with extrusion of infected debris. the aim of this study was to evaluate the number of bacteria extruded apically from extracted teeth ex vivo after canal instrumentation using the two engine-driven techniques utilizing nickel-titanium instruments (flex master and mtwo). materials and methods: seventy extracted max...

A total of 154 enterococcal isolates from 95 stored-product insects collected from a feed mill, a grain storage silo, and a retail store were isolated and identified to the species level using PCR. Enterococcus casseliflavus represented 51% of the total isolates, followed by Enterococcus gallinarum (24%), Enterococcus faecium (14%), Enterococcus faecalis (7%), and Enterococcus hirae (5%). Many ...

Despite the increasing importance of Enterococcus as opportunistic pathogens, their virulence factors are still poorly understood. This study determines the frequency of virulence factors in clinical and commensal Enterococcus isolates from inpatients in Porto Alegre, Brazil. Fifty Enterococcus isolates were analysed and the presence of the gelE, asa1 and esp genes was determined. Gelatinase ac...

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...

OBJECTIVE To assess the rate of faecal vancomycin-resistant Enterococcus colonisation in high-risk patients in a regional hospital. DESIGN Prospective observational surveillance study. SETTING Queen Elizabeth Hospital, Hong Kong. PATIENTS From September 2001 to December 2002, stool samples from patients in the intensive care unit and patients in whom Clostridium difficile testing was requ...