Browsing by Subject "Enterococcus faecalis"
Now showing items 21-40 of 44
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Efeito de inibidores teciduais e endotoxina sobre a atividade antibacteriana de soluções irrigadoras
(2014) [Work completion of graduation]O presente estudo in vitro avaliou o possível efeito inibitório da dentina humana pulverizada (DH), albumina sérica bovina (ALB) e de endotoxina (LPS) na ação antimicrobiana de soluções de hipoclorito de sódio (NaOCl), gel ... -
Efetividade da terapia fotodinâmica associada à soluções irrigadoras frente a dois modelos de biofilme
(2015) [Thesis]O objetivo deste estudo foi avaliar o efeito antibacteriano e a dissolução de biofilme promovido pela terapia fotodinâmica (PDT) associada com o hipoclorito de sódio (NaOCl) 2,5% e a clorexidina (CHX) sobre biofilmes ... -
Effect of human, dentin, albumin and lipopolysaccharide on the antibacteerial activity of endodontic activity of endodontic irrigants
(2017) [Journal article]Context: Human dentin powder (HD), bovine serum albumin (BSA) and endotoxin (LPS) may affect the antimicrobial activity of irrigating solutions. Aim: To evaluate the inhibitory effect of HD powder, BSA, and LPS on the ... -
Effect of reciprocating instrumentation on chlorhexidine substantivity on human dentin: chemical analysis followed by confocal laser microscopy
(2021) [Journal article]The present research analyzed the reciprocating instrumentation associated to chlorhexidine (CHX) substantivity as its correlation with E. faecalis viabilityin ex vivoroot canals. Eighty extracted single-rooted human teeth ... -
Estudo in vitro da ação de diferentes concentrações de hipoclorito de sódio sobre Enterococcus faecalis
(2011) [Work completion of graduation]Enterococos são cocos Gram-positivos, membros da microbiota humana e animal, sendo também encontrados em alimentos, solo e água. A resistência de enterococos a antibióticos têm sido muito estudada em amostras alimentares, ... -
Evaluation antibacterial and antibiofilm activity of the antimicrobial peptide P34 against Staphylococcus aureus and Enterococcus faecalis
(2018) [Journal article]The adhesion ability of bacteria to abiotic surfaces has important implications in food industries, because these organisms can survive for long periods through the biofilm formation. They can be transferred from one place ... -
Evaluation of the antimicrobial effect of super-oxidized water (Sterilox®) and sodium hypochlorite against Enterococcus faecalis in a bovine root canal model
(2010) [Journal article]Ideally root canal irrigants should have, amongst other properties, antimicrobial action associated with a lack of toxicity against periapical tissues. Sodium hypochlorite (NaOCl) is a widely used root canal irrigant, ... -
Evaluation of the pH, calcium release and antibacterial activity of MTA Fillapex
(2013) [Journal article]Objective: This study evaluated, in several analysis periods, pH and calcium release and antibacterial activity provided by MTA Fillapex sealer compared to Sealapex and AH Plus sealers. Material and method: Polyethylene ... -
Fatores de virulência de Enterococcus faecalis associados ao câncer colorretal : revisão de literatura
(2022) [Work completion of graduation]O câncer está entre as maiores causas de mortalidade global, sendo o câncer de colorretal (CCR) um dos mais prevalentes em número de casos e mortes. Estudos ao longo das últimas décadas estão demonstrando que a microbiota ... -
Frequency of Clustered Regularly Interspaced Short Palindromic Repeats (CRISPRs) in non-clinical Enterococcus faecalis and Enterococcus faecium strains
(2019) [Journal article]The fidelity of the genomes is defended by mechanism known as Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) systems. Three Type II CRISPR systems (CRISPR1-cas, CRISPR2 and CRISPR3-cas) have been ... -
How do phages disrupt the structure of Enterococcus faecalis biofilm?
(2023) [Journal article]Biofilms are composed of multicellular communities of microbial cells and their self-secreted extracellular polymeric substances (EPS). The viruses named bacteriophages can infect and lyze bacterial cells, leading to ... -
Influence of a subinhibitory concentration of vancomycin on the in vitro expression of virulence-related genes in the vancomycin-resistant enterococcus faecalis
(2015) [Journal article]Introduction: Exposure to subinhibitory concentrations (SICs) of antimicrobials may alter the bacterial transcriptome. Methods: Here, we evaluated the expression of nine virulence-related genes in vancomycin-resistant ... -
In vitro antibacterial activity of a silicone-based endodontic sealer and two conventional sealers
(2016) [Journal article]: The aim of this study was to evaluate whether the modification in the silver component is capable of providing GuttaFlow 2 with antibacterial activity against Enterococcus faecalis compared with epoxy resin-based (AH ... -
A Model system to study antimicrobial strategies in endodontic biofilms
(2009) [Journal article]The purpose of this work was to develop a model system to study antimicrobial strategies in endodontic biofilms. Enterococcus faecalis suspension was colonized in 10 human root canals. Five milliliters of Brain Heart ... -
Molecular detection of virulence factors among food and clinical Enterococcus faecalis strains in South Brazil
(2014) [Journal article]The present report aimed to perform a molecular epidemiological survey by investigating the presence of virulence factors in E. faecalis isolated from different human clinical (n = 57) and food samples (n = 55) in Porto ... -
Ocorrência de Enterococcus faecalis em infecções endodônticas persistentes : revisão de literatura
(2020) [Work completion of specialization]Fatores microbianos são considerados a principal causa de infecção persistente após o tratamento do canal radicular. As infecções endodônticas persistentes podem ser causadas por diversos grupos bacterianos. Enterococcus ... -
Oxidative stress enhances the expression of sulfur assimilation genes: preliminary insights on the Enterococcus faecalis iron-sulfur cluster machinery regulation
(2014) [Journal article]The Firmicutes bacteria participate extensively in virulence and pathological processes. Enterococcus faecalis is a commensal microorganism; however, it is also a pathogenic bacterium mainly associated with nosocomial ... -
Por que as lesões endodônticas persistem? : uma revisão da literatura com enfoque biológico da questão
(2012) [Work completion of specialization]Periodontite apical é um processo inflamatório agudo ou crônico dos tecidos perirradiculares causado por agentes etiológicos de origem endodôntica. Após o tratamento endodôntico, quando o mesmo é realizado adequadamente, ... -
Potentiation of the action of calcium hydroxide on Enterococcus faecalis by proton pump inhibitor omeprazole
(2015) [Journal article]Purpose: Calcium hydroxide is not fully effective against Enterococcus faecalis (E. faecalis), a facultative anaerobic bacterium proven to be resistant to most conventional disinfection processes. The aim of this in vitro ... -
Resposta do biofilme de Enterococcus faecalis frente a diferentes protocolos de irrigação durante o preparo do canal radicular : análise em microscopia confocal
(2013) [Work completion of graduation]O objetivo deste estudo in vitro foi avaliar o efeito de diferentes soluções irrigadoras endodônticas auxiliares sobre um biofilme de Enterococcus Faecalis (Ef) através de Microscopia Confocal de Varredura a Laser (MCVL). ...