ABSTRACT Introduction: Plasma-polymerized film deposition was created to modify metallic orthodontic brackets surface properties in order to inhibit bacterial adhesion. Methods: Hexamethyldisiloxane (HMDSO) polymer films were deposited on conventional (n = 10) and self-ligating (n = 10) stainless ste...
Adhesión Bacteriana/efectos de los fármacos,
Biopelículas/efectos de los fármacos,
Diseño de Aparato Ortodóncico,
Soportes Ortodóncicos/microbiología,
Plasma,
Polimerizacion,
Siloxanos/farmacología,
Streptococcus mutans/efectos de los fármacos,
Streptococcus mutans/aislamiento & purificación,
Streptococcus mutans/fisiología,
Propiedades de Superficie
Abstract Bacterial endotoxin (LPS) adhesion to orthodontic brackets is a known contributing factor to inflammation of the adjacent gingival tissues. Objective The aim of this study was to assess whether LPS adheres to orthodontic adhesive systems, comparing two commercial brands. Material and Methods ...
Abstract The pathogenic bacterium Listeria monocytogenes can persist in food processing plants for many years, even when appropriate hygienic measures are in place, with potential for contaminating ready-to-eat products and, its ability to form biofilms on abiotic surfaces certainly contributes for the e...
Yu, Yi;
Chang, De;
Xu, Huiwen;
Zhang, Xuelin;
Pan, Lei;
Xu, Chou;
Huang, Bing;
Zhou, Hong;
Li, Jia;
Guo, Jun;
Liu, Changting.
Abstract Streptococcus pneumoniae is one of the most frequent opportunistic pathogens worldwide. DNA processing protein A (DprA) is an important factor involved in bacterial uptake and DNA integration into bacterial genome, but its role in S. pneumoniae virulence remains unclear. The aim of this study wa...
Adhesión Bacteriana,
Proteínas Bacterianas/metabolismo,
Proteínas de la Membrana/metabolismo,
Infecciones Neumocócicas/patología,
Streptococcus pneumoniae/patogenicidad,
Factores de Virulencia/análisis,
Proteínas Bacterianas/análisis,
Proteínas Bacterianas/genética,
Línea Celular,
Modelos Animales de Enfermedad,
Células Epiteliales/microbiología,
Técnicas de Inactivación de Genes,
Ratones,
Infecciones Neumocócicas/microbiología,
Streptococcus pneumoniae/genética,
Análisis de Supervivencia,
Factores de Virulencia/genética,
Proteínas de la Membrana/genética
ABSTRACT BACKGROUND The diarrheal syndrome is considered a serious public health problem all over the world and is considered a major cause of morbidity and mortality in developing countries. The high incidence of enteroaggregative Escherichia coli in diarrheal syndromes classified as an emerging patho...
Adhesión Bacteriana/fisiología,
Colon/microbiología,
Colon/ultraestructura,
Escherichia coli/fisiología,
Infecciones por Escherichia coli/microbiología,
Íleon/microbiología,
Íleon/ultraestructura,
Mucosa Intestinal/microbiología,
Mucosa Intestinal/ultraestructura,
Microscopía Electrónica de Rastreo,
Filogenia,
Conejos,
Factores de Virulencia
Resumen Los factores de adhesión son determinantes de virulencia que se expresan en microorganismos que tienen la capacidad de formar biopelícula, contribuyendo a la gravedad de infecciones intrahospitalarias. Dentro de estos componentes de la superficie microbiana que reconocen moléculas de adhesión...
Abstract The aim was to evaluate the surface roughness and bacterial adhesion on enamel irradiated with high intensity lasers, associated or not to a fluoride varnish. Eighty fragments of bovine enamel were equally divided in 8 groups (n=10). Group 1 was not treated and Group 2 received only a 5% fluorid...
Abstract The objective of this study was to evaluate the effects of Cymbopogon citratus essential oil and its main compound (citral) against primary dental colonizers and caries-related species. Chemical characterization of the essential oil was performed by gas chromatography/mass spectroscopy (GC/MS), ...
Actinomyces/efectos de los fármacos,
Actinomyces/crecimiento & desarrollo,
Análisis de Varianza,
Antiinfecciosos/farmacología,
Antiinfecciosos Locales/farmacología,
Adhesión Bacteriana/efectos de los fármacos,
Biopelículas/efectos de los fármacos,
Supervivencia Celular/efectos de los fármacos,
Clorhexidina/análogos & derivados,
Clorhexidina/farmacología,
Recuento de Colonia Microbiana,
Cymbopogon/química,
Caries Dental/microbiología,
Caries Dental/prevención & control,
Esmalte Dental/efectos de los fármacos,
Esmalte Dental/microbiología,
Cromatografía de Gases y Espectrometría de Masas,
Queratinocitos/efectos de los fármacos,
Lactobacillus acidophilus/efectos de los fármacos,
Lactobacillus acidophilus/crecimiento & desarrollo,
Pruebas de Sensibilidad Microbiana,
Aceites Volátiles/farmacología,
Valores de Referencia,
Reproducibilidad de los Resultados,
Estadísticas no Paramétricas,
Streptococcus/efectos de los fármacos,
Streptococcus/crecimiento & desarrollo,
Factores de Tiempo
Campylobacter fetus is extracellular bacteria of the genital tract of cattle. They cause infertility and abortion, but there is no documented information on the susceptibility of bovine sperm cells to this bacteria. The aim of this present work was to study the effects provoked by Campylobacter fetus sub...
This work demonstrates that the addition of metronidazole together with a ubiquitous quinone compound reduces adherence of Lactobacillus acidophilus to ovine vaginal cells. Spectrophotometric and voltammetric studies have shown that neoformed compounds were observed in these systems; there were also chan...
