Results: 72

Biopelículas microbianas y su impacto en áreas médicas: fisiopatología, diagnóstico y tratamiento

Resumen Las biopelículas son comunidades de microorganismos que crecen agregados y rodeados por una matriz extracelular que ellos mismos producen, la cual favorece la adhesión covalente sobre superficies inertes y vivas; además, les ayuda a desarrollar alta tolerancia a las moléculas con actividad an...

Removal and killing of multispecies endodontic biofilms by N-acetylcysteine

Braz. j. microbiol; 49 (1), 2018
ABSTRACT Removal of bacterial biofilm from the root canal system is essential for the management of endodontic disease. Here we evaluated the antibacterial effect of N-acetylcysteine (NAC), a potent antioxidant and mucolytic agent, against mature multispecies endodontic biofilms consisting of Actinomyces...

Combined effect of bacteriocin produced by Lactobacillus plantarum ST8SH and vancomycin, propolis or EDTA for controlling biofilm development by Listeria monocytogenes

Rev. argent. microbiol; 50 (1), 2018
The Listeria monocytogenes strains selected in the present study exhibited similar behavior in biofilm formation, independently of the tested conditions (bacteriocin from L. plantarum ST8SH, vancomycin, propolis (a natural antimicrobial product) and EDTA (chelating agent)), individual or in associations....

Biofilm production by clinical isolates of Pseudomonas aeruginosa and structural changes in LasR protein of isolates non biofilm-producing

Braz. j. infect. dis; 22 (2), 2018
ABSTRACT Introduction: Biofilm production is an important mechanism for the survival of Pseudomonas aeruginosa and its relationship with antimicrobial resistance represents a challenge for patient therapeutics. P. aeruginosa is an opportunistic pathogen frequently associated to nosocomial infections, es...

Evaluation antibacterial and antibiofilm activity of the antimicrobial peptide P34 against Staphylococcus aureus and Enterococcus faecalis

An. acad. bras. ciênc; 90 (1), 2018
ABSTRACT 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 to another in the industry causing contamination of the food processing e...

Haemophilus influenzae no tipificable: mecanismo de destrucción del biofilm

Rev. ANACEM (Impresa); 12 (1), 2018
INTRODUCCIÓN: Haemophilus influenzae tiene como hábitat el aparato respiratorio humano. No existe vacuna contra la variante no tipificable (NTHi) de este, por lo que se ha mostrado una tendencia al incremento de casos en los últimos años. La patogenicidad de NTHi se debe a su habilidad para formar bi...

Effect of Myracrodruon urundeuva and Qualea grandiflora extracts on viability and activity of microcosm biofilm and prevention of enamel demineralization in vitro

The objective of this study was to evaluate the antimicrobial and anti-caries effects of two plant extracts. The first chapter dealt with a review of the literature whose objective was to discuss the antimicrobial potential of Brazilian natural agents on the biofilm related to dental caries and gingiviti...

Do different strains of E. faecalis have the same behavior towards intracanal medications in in vitro research?

Abstract: The aim of this study was to evaluate the antimicrobial action of different endodontic pastes against Enterococcus faecalis ATCC 29212, isolated from the urinary tract, and compare the action with E. faecalis ATCC 4083, isolated from the root canal. For this purpose, dentin blocks were infected...

Antifungal, antibiofilm, and antiproliferative activities of Guapira graciliflora Mart

Abstract: The aim of this study was to evaluate in vitro the antifungal, antibiofilm and antiproliferative activities of the extract from the leaves of Guapira graciliflora Mart. The phytochemical characterization of the extract was performed using electrospray ionization mass spectrometry (ESI-MS). The ...

Analysis of the antimicrobial and anti-caries effects of TiF4 varnish under microcosm biofilm formed on enamel

J. appl. oral sci; 26 (), 2018
Abstract Titanium tetrafluoride (TiF4) is known for interacting with enamel reducing demineralization. However, no information is available about its potential antimicrobial effect. Objectives This study evaluated the antimicrobial and anti-caries potential of TiF4 varnish compared to NaF varnish, chlor...