نتایج جستجو برای: virulence marker
تعداد نتایج: 172988 فیلتر نتایج به سال:
The parasite Entamoeba histolytica colonizes the large bowel where it may persist as an asymptomatic luminal gut infection, which changes to virulence. Parasite invasion of the intestine leads to dysentery and spreads to the liver, where amoebae form abscesses. We took advantage of changes in virulence that occurs after long-term in vitro culture of E. histolytica strains. Using microarrays, we...
We have previously shown that enteroaggregative Escherichia coli (EAEC) is an important pathogen among Brazilian infants. Most EAEC strains harbor a plasmid (pAA) from which a DNA fragment has been used as a probe (EAEC probe). To better understand the characteristics of EAEC in Brazil, 109 strains carrying and lacking the EAEC probe sequence were tested for the presence of pAA plasmid-borne an...
Multidrug-resistant Escherichia coli is an emerging clinical challenge in domestic species. Treatment options in many cases are limited. This study characterized MDR E. coli isolates from urinary tract infections in dogs, collected between 2002 and 2011. Isolates were evaluated in terms of β-lactamase production, phylogenetic group, ST type, replicon type and virulence marker profile. Compariso...
Repeated subculturing caused rapid changes in the spore surface properties and virulence of Metarhizium anisopliae. Of the two strains evaluated, M. anisopliae V245 attenuated more rapidly than V275. Electrophoretic mobility and Radial Flow Chamber assays were used for the first time to generate qualitative and quantitative information on the adhesive forces of M. anisopliae conidia. Independen...
Biofilm production has been implicated as a potential virulence factor of some candida species responsible for catheter related candidaemia in ICU patients with indwelling devices. Early detection of slime production by the candida species may be useful for clinical decisions. We therefore have aimed at demonstrating the formation of biofilm by candida species isolated from blood samples collec...
Annually, data are accumulating on the involvement of opportunistic microorganisms in development inflammatory diseases humans, maintaining a chronic response and, thus, adapting to conditions existence biotopes human body. This review provides information interactions medical importance, which affects virulence both pathogens and classical pathogens, probably underlie chronicity infection infl...
A novel protein translocation system, the type-6 secretion system (T6SS), may play a role in virulence of Campylobacter jejuni. We investigated 181 C. jejuni isolates from humans, chickens, and environmental sources in Vietnam, Thailand, Pakistan, and the United Kingdom for T6SS. The marker was most prevalent in human and chicken isolates from Vietnam.
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