Persistent Strains
Mostrando 1-12 de 299 artigos, teses e dissertações.
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1. Study of tissue inflammatory response in different mice strains infected by dematiaceous fungi Fonsecaea pedrosoi
Abstract: Background: Diseases caused by melanized fungi include mycetoma, chromoblastomycosis and phaeohyphomycosis. This broad clinical spectrum depends on the dynamic interactions between etiologic agent and host. The immune status of the host influences on the development of the disease, as, an exemple. phaeohyphomicosis is more frequently observed in i
An. Bras. Dermatol.. Publicado em: 2019-02
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2. Quorum sensing LuxS/autoinducer-2 inhibits Enterococcus faecalis biofilm formation ability
Abstract Objective: To investigate the relation between biofilm formation ability and quorum sensing gene LuxS/AI-2. Materials and Methods: Enterococcus faecalis (E. faecalis) standard strain ATCC 29212 was used in the study. Long flanking homology polymerase chain reaction method was used to build the LuxS gene knockout strain. Sequential culture turbidit
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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3. Effect of sulfonylurea tribenuron methyl herbicide on soil Actinobacteria growth and characterization of resistant strains
ABSTRACT Repeated application of pesticides disturbs microbial communities and cause dysfunctions on soil biological processes. Granstar® 75 DF is one of the most used sulfonylurea herbicides on cereal crops; it contains 75% of tribenuron-methyl. Assessing the changes on soil microbiota, particularly on the most abundant bacterial groups, will be a useful a
Braz. J. Microbiol.. Publicado em: 2018-03
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4. Regional analysis of potential polychlorinated biphenyl degrading bacterial strains from China
ABSTRACT Polychlorinated biphenyls (PCBs), the chlorinated derivatives of biphenyl, are one of the most prevalent, highly toxic and persistent groups of contaminants in the environment. The objective of this study was to investigate the biodegradation of PCBs in northeastern (Heilongjiang Province), northern (Shanxi Province) and eastern China (Shanghai muni
Braz. J. Microbiol.. Publicado em: 2016-09
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5. Enterococcus spp. isolated from root canals with persistent chronic apical periodontitis in a Chilean population
Abstract Aim: To isolate and identify in a Chilean population,Enterococcus spp. from root canals with persistent chronic apical periodontitis (CAP) and to investigate the potential correlation between the bacteria and the observed clinical features. Methods: Twenty patients with indication for endodontic retreatment due to persistent CAP were selected. Dat
Braz. J. Oral Sci.. Publicado em: 2015-09
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6. Virulence factors and biofilm production by isolates of Bacteroides fragilis recovered from dog intestinal tracts
Bacteroides fragilis colonizes dog guts both as a commensal and as an opportunistic pathogen. This study aims to evaluate virulence factors of 13 B. fragilis strains isolated from dog intestinal tracts and their ability for biofilm formation. Capsules were detected in all the evaluated strains. A total of 61.5% of all strains were biofilm producers. These at
Braz. J. Microbiol.. Publicado em: 2014-06
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7. Myenteric plexus is differentially affected by infection with distinct Trypanosoma cruzi strains in Beagle dogs
Chagasic megaoesophagus and megacolon are characterised by motor abnormalities related to enteric nervous system lesions and their development seems to be related to geographic distribution of distinct Trypanosoma cruzi subpopulations. Beagle dogs were infected with Y or Berenice-78 (Be-78) T. cruzi strains and necropsied during the acute or chronic phase of
Mem. Inst. Oswaldo Cruz. Publicado em: 04/11/2013
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8. In vitro biofilm forming potential of Streptococcus suis isolated from human and swine in China
Streptococcus suis is a swine pathogen and also a zoonotic agent. The formation of biofilms allows S. suis to become persistent colonizers and resist clearance by the host immune system and antibiotics. In this study, biofilm forming potentials of various S. suis strains were characterized by confocal laser scanning microscopy (CLSM), scanning electron micr
Braz. J. Microbiol.. Publicado em: 2012-09
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9. Molecular identification and antimicrobial susceptibility of Staphylococcus aureus nasal isolates from medical students in Cartagena, Colombia
Staphylococcus aureus (SA) remains a major cause of nosocomial and community-acquired infections worldwide. Nasal carriage of this bacterium among hospital personnel constitutes an important source for nosocomial infections. A cross-sectional study enrolling the whole medical student population (n = 387) of the School of Medicine at the Universidad de Cartag
Brazilian Journal of Infectious Diseases. Publicado em: 2012-08
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10. Outbreaks, persistence, and high mortality rates of multiresistant Pseudomonas aeruginosa infections in a hospital with AIDS-predominant admissions
INTRODUCTION: Authors have reported increased incidence of multiresistant Pseudomonas aeruginosa (MR-PA) infections worldwide over the last decade. Researchers have proposed multifaceted approaches to control MR-PA infections, but none have been reported in the acquired immunodeficiency syndrome (AIDS) setting. OBJECTIVE AND METHODS: Herein we report the imp
Brazilian Journal of Infectious Diseases. Publicado em: 2011-08
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11. Aplicação do óleo essencial do orégano (Origanum vulgare) no tratamento da mastite bovina e presença de fungos no leite bovino in natura / Application of the essential oil of oregano (Origanum vulgare) in the treatment of bovine mastitis and fungi in fresh cow milk
The study aimed to identify the presence of fungi in mastitic milk and to evaluate the in vitro action of essential oil of O. vulgare against microorganisms isolated from milk and to study the toxicity of the oil and perform clinical trial of prepared herbal of essential oil of oregano to 3% in cows with mastitis. The survey was conducted in 1499 samples fro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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12. Selection of biosurfactan/bioemulsifier-producing bacteria from hydrocarbon-contaminated soil
Petroleum-derived hydrocarbons are among the most persistent soil contaminants, and some hydrocarbon-degrading microorganisms can produce biosurfactants to increase bioavailability and degradation. The aim of this work was to identify biosurfactant-producing bacterial strains isolated from hydrocarbon-contaminated sites, and to evaluate their biosurfactant p
Brazilian Journal of Microbiology. Publicado em: 2010-10