نتایج جستجو برای: faecalis

تعداد نتایج: 7448  

Journal: :Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics 2005
Fábio Roberto Dametto Caio Cezar Randi Ferraz Brenda Paula Figueiredo de Almeida Gomes Alexandre Augusto Zaia Fabricio Batista Teixeira Francisco José de Souza-Filho

OBJECTIVE The aim of this study was to assess in vitro the antimicrobial activity of 2% chlorhexidine gel against Enterococcus faecalis , comparing it to other endodontic irrigants (2% chlorhexidine liquid and 5.25% sodium hypochlorite). STUDY DESIGN Eighty roots of human mandibular premolars were prepared by serial instrumentation technique, autoclaved, and contaminated for 7 days with E fae...

2017
Anil Chandra Rakesh Kumar Yadav Vijay Kumar Shakya Suaib Luqman Simith Yadav

Aim: the aim of the present ExVivo study was to check the antimicrobial efficacy of silver nanoparticles with and without different antimicrobials against E. faecalis. Material and Methods: 126 recently extracted single rooted human teeth were contaminated with E. faecalis. The teeth were randomly divided into 5 experimental (n=21) and 1 control group (n=21). Each subgroup was then exposed to d...

2009
Selcuk M. Ozbek Ahmet Ozbek Aziz S. Erdogan

OBJECTIVE The aims of this study were to investigate the presence of Enterococcus faecalis in primary endodontic infections and failed endodontic treatments using real-time PCR and to determine the statistical importance of the presence of E. faecalis in a Turkish population with endodontic infections. MATERIAL AND METHODS E. faecalis was investigated from 79 microbial samples collected from ...

Journal: :Applied and environmental microbiology 2002
Charles M A P Franz Alexandra Grube Anette Herrmann Hikmate Abriouel Joachim Stärke Angiolella Lombardi Bernhard Tauscher Wilhelm H Holzapfel

The structural genes for the two-peptide bacteriocin enterocin 1071 (Ent1071) in Enterococcus faecalis FAIR-E 309 were cloned. DNA sequence analysis showed that the enterocin 1071A (Ent1071A) peptide of strain FAIR-E 309 differed by two amino acids from the Ent1071A reported for E. faecalis BFE 1071 (E. Balla, L. M. T. Dicks, M. Du Toit, M. J. van der Merwe, and W. H. Holzapfel, Appl. Environ. ...

2013
Tomasz K. Prajsnar Stephen A. Renshaw Nikolay V. Ogryzko Simon J. Foster Pascale Serror Stéphane Mesnage

Enterococcus faecalis is an opportunistic pathogen responsible for a wide range of life-threatening nosocomial infections, such as septicemia, peritonitis, and endocarditis. E. faecalis infections are associated with a high mortality and substantial health care costs and cause therapeutic problems due to the intrinsic resistance of this bacterium to antibiotics. Several factors contributing to ...

Journal: :Letters in applied microbiology 2011
R Vidana A Sullivan H Billström M Ahlquist B Lund

AIMS Enterococcus faecalis is associated with a significant number of refractory endodontic infections. Previous studies report a prevalence of Ent. faecalis ranging from 24% up to 77% in teeth with failed endodontic treatment. The origin of the micro-organism remains unclear, as enterococci do not belong to the normal oral microflora. The aim of this study was to determine whether these entero...

2013
Lei Zhu Hongkai Bi Jincheng Ma Zhe Hu Wenbin Zhang John E. Cronan Haihong Wang

UNLABELLED Enoyl-acyl carrier protein (enoyl-ACP) reductase catalyzes the last step of the elongation cycle in the synthesis of bacterial fatty acids. The Enterococcus faecalis genome contains two genes annotated as enoyl-ACP reductases, a FabI-type enoyl-ACP reductase and a FabK-type enoyl-ACP reductase. We report that expression of either of the two proteins restores growth of an Escherichia ...

2014
Deng-Jye Yang Hsin-Yi Chen Shih-Chuan Liu

The research was undertaken to determine the bacteriostatic effects of the concentrate of Japanese apricot juice (bainiku-ekisu), which is a popular health food in Taiwan and Japan, on Enterococcus faecalis ATCC 29212, Staphylococcus aureus ATCC 25923, and Escherichia coli ATCC 25922. The results show that E. faecalis, S. aureus, and E. coli could be killed or inhibited by bainiku-ekisu at conc...

2016
Lei Lei Meiying Shao Yan Yang Mengying Mao Yingming Yang Tao Hu

Objective: Enterococcus faecalis is the dominant microbial species responsible for persistent apical periodontitis with ability to deeply penetrate into the dentin. Exopolysaccharides (EPS) contribute to the pathogenicity and antibiotic resistance of E. faecalis. Our aim was to investigate the antimicrobial activity of calcium hydroxide (CH), camphorated parachlorophenol (CMCP), and chlorhexidi...

Journal: :The new microbiologica 2008
Chiara Pirani Angelica Bertacci Francesca Cavrini Federico Foschi Giovanni Luca Acquaviva Carlo Prati Vittorio Sambri

The presence of Enterococcus faecalis in root canal teeth affected by primary and secondary periapical lesions was studied using polymerase chain reaction (PCR) assays. The association between presence of E. faecalis with clinical signs of apical lesions was assessed to evaluate a possible relationship between clinical findings. Microbial samples were obtained from healthy patients affected by ...

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