Results: 45

Influence of iron deprivation on virulence traits of mycobacteria

Braz. j. infect. dis; 20 (6), 2016
ABSTRACT Novel strategies to combat the ever increasing burden of drug resistance in Mycobacterium tuberculosis (MTB) causing tuberculosis (TB) remains a global concern. The ability of MTB to sense and adapt to restricted iron conditions in the hostile environment is essential for their survival and conf...

Curli fimbria: an Escherichia coli adhesin associated with human cystitis

Braz. j. microbiol; 47 (2), 2016
Abstract Escherichia coli is the major causative agent of human cystitis. In this study, a preliminary molecular analysis carried out by PCR (polymerase chain reaction) demonstrated that 100% of 31 E. coli strains isolated from patients with recurrent UTIs (urinary tract infections) showed the presence o...

Lactobacillus rhamnosus could inhibit Porphyromonas gingivalis derived CXCL8 attenuation

J. appl. oral sci; 24 (1), 2016
ABSTRACT An increasing body of evidence suggests that the use of probiotic bacteria is a promising intervention approach for the treatment of inflammatory diseases with a polymicrobial etiology. P. gingivalis has been noted to have a different way of interacting with the innate immune response of the hos...

Antiseptics and microcosm biofilm formation on titanium surfaces

Braz. oral res. (Online); 30 (1), 2016
Abstract Oral rehabilitation with osseointegrated implants is a way to restore esthetics and masticatory function in edentulous patients, but bacterial colonization around the implants may lead to mucositis or peri-implantitis and consequent implant loss. Peri-implantitis is the main complication of oral...

Interrogantes en la tecnología de la inoculación de semillas de soja con Bradyrhizobium spp
Queries related to the technology of soybean seed inoculation with Bradyrhizobium spp

Rev. argent. microbiol; 47 (3), 2015
With the aim of exploiting symbiotic nitrogen fixation, soybean crops are inoculated with selected strains of Bradyrhizobium japonicum, Bradyrhizobium diazoefficiens or Bradyrhizobium elkanii (collectively referred to as Bradyrhizobium spp.). The most common method of inoculation used is seed inoculation...

Apoptosis in HEp-2 cells infected with Ureaplasma diversum

Biol. Res; 47 (), 2014
BACKGROUND: Bacterial pathogens have many strategies for infecting and persisting in host cells. Adhesion, invasion and intracellular life are important features in the biology of mollicutes. The intracellular location ofUreaplasma diversum may trigger disturbances in the host cell. This includes activat...

Biofilm prevención en implantes mamarios
Biofilm prevention in breast implants

Rev. argent. cir. plást; 20 (2), 2014
Se describen las etapas recomendadas para evitar la formación del biofi lm alrededor de los implantes mamarios. Se traza el protocolo usado, con la fi nalidad de disminuir las posibilidades de adhesión bacteriana a la superfi cie del implante. La pretensión es disminuir las complicaciones que conlleva...

Avaliação da aderência de biofilme bacteriano em bráquetes metálicos, plásticos e cerâmicos

As diferentes superfícies dos acessórios ortodônticos podem demonstrar impacto microbiológico distinto quando expostos à cavidade bucal. Esse trabalho discute os aspectos relacionados à aderência de biofilme em bráquetes de diferentes composições estruturais e com os tipos de amarração normal...

Hydrophobicity test in mutans Streptococci

Acta odontol. latinoam; 23 (3), 2010
Kinetic hydrophobic measurements were performed by confronting 40 mutans streptococci from thirty 10- to 20-year-old patients with 200 ml hexadecane (Sigma). Fourteen patients had high dental caries risk (Group A), dmft + DMFT >5 with 3 or more active caries, and 16 had low dental caries risk (Group B...

Glucanos extracelulares bacterianos: estructura, biosíntesis y función
Extreacellular bacterial glucans: structure, biosynthesis and function

Rev. cuba. estomatol; 45 (3/4), 2008
La caries dental es una de las enfermedades más frecuentes en el ser humano. En su etiología multifactorial, desempeñan un papel importante determinadas bacterias cariogénicas, que en interacción con la superficie del diente promueven su desmineralización. Dentro de los mecanismos mediadores de la ...