salmonella is one of the most important zoonotic pathogens with many virulence factors playing a major role in its pathogenesis. the aims of this study were to detect spva, int2 and invc virulence genes of different salmonella serotypes isolated from various clinical animal and human sources, and to investigate antibiotic resistance patterns among these serotypes. using a pcr assay, a total of ...

conclusions overall, except for pcvd432 and aggr, we detected high heterogeneity of virulence factors among eaec isolates causing diarrhea in children. one set of genes, in the combination, pic- sepa- agg4a, was associated with strong biofilm. results among the 322 e. coli isolated, 23 were identified as eaec. all eaec carried a 630-bp fragment of the plasmid (paa) encoded pcvd432 and aggr gene...

pertussis is still endemic and the recently resurgence of the disease caused by bordetella pertussis has been shown in many countries. the polymorphism of the virulence genes of b. pertussis and lack of any information about the allelic variation between the iranian isolates promotes us to analysis of the genes encoded virulence factors including ptxs1, prn, fim3 and cya to understand the diffe...

conclusions the results of the current study designate the important role of medical samples as reservoirs of resistance inducing elements. early detection of vre with their virulence trait will help to prevent the spread of vancomycin resistant enterococcus species. supervision for antibiotic usage in hospitals, especially for last option antibiotics, can prevent the spread of resistant isolat...

Objective(s): Escherichia coli strains are common pathogens that can cause urinary tract infections (UTI). This study aimed to assess E. coli phylogroups and virulence types in male and female UTI patients.Materials and Methods: In the present study, 160 uropathogenic E. coli (UPEC) isolates (from both sexes) were assigned to phylogroups/types and some extraintestinal virulence factors were det...

Resumen. El trabajo presenta una metodología básica con los pasos a efectuar previamente al desarrollo de Sistemas de Información Interorganizacionales (SIOs). Ellos conforman el soporte para la ejecución de procesos en las Redes Interorganizacionales (RIOs), nuevas estructuras conformadas por varias organizaciones. Uno de los pasos críticos para el éxito de este tipo de proyectos es el Análisi...

El dolor es una experiencia subjetiva difícilmente evaluable de forma objetiva por su variada expresión. Se define como una compleja experiencia sensorioemocional, modulada por factores cognitivos y que involucra un amplio sistema neural. La neuroimagen funcional ha contribuido a definir este circuito neural en controles sanos y en pacientes con un síndrome de dolor agudo o crónico implicado en...

Para conocer las propiedades computacionales del sistema nervioso central es importante comprender cómo están conectadas entre śı las neuronas. Para ello pueden emplearse diferentes estrategias (fisiológicas, anatómicas, etc.), siendo también posible seguir un enfoque computacional. En este trabajo se llevan a cabo simulaciones de circuitos neuronales, para lo que se ha desarrollado un nuevo mo...

pasteurella multocida is an opportunistic pathogen responsible for pneumonia of lambs and goats, respiratory atrophic rhinitis of swine. although the molecular basis of the pathogenicity and host specificity of p. multocida is not well understood, several studies have reported that a number of proteins are correlated with the pathogenic mechanisms. adhesins have a crucial role in mediating colo...

background: the aim of this study was to determine the prevalence of virulence-associated genes and enterobacterial repetitive intergenic consensus pcr (eric-pcr) analysis of campylobacter spp. isolated from children with diarrhea in iran. methods: a total of 200 stool specimens were obtained from children under 5 years during july 2012 to july 2013. detection of c. jejuni and c. coli was perfo...