Cytotoxins
Mostrando 1-12 de 92 artigos, teses e dissertações.
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1. Citotoxina produzida por Achromobacter xylosoxidans isolados de pacientes com fibrose cística induz a produção de citocinas pró inflamatórias / Cytotoxin produced by Achromobacter xylosoxidans isolated from patients with cystic fibrosis induces the production of inflammatory cytokines
Fibrose cística (FC) é uma doença genética, autossômica recessiva, caracterizada por anormalidade no transporte eletrolítico. Achromobacter xylosoxidans é um bacilo Gram-negativo, não-fermentador e nos últimos anos tem sido encontrado em pacientes com FC, levando à doença pulmonar crônica. Neste estudo foram analisadas 17 amostras de A.xylosoxida
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/08/2011
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2. Estudo de genes do Sistema de Secreção tipo VI em uma linhagem de Escherichia coli patogênica para aves (APEC) / Study of Type VI Secretion System genes in an avian Escherichia coli pathogenic strain (APEC)
Avian pathogenic Escherichia coli (APEC) strains frequently cause extraintestinal infections and are responsible for significant economic losses in the poultry industry worldwide. APEC isolates are closely related to human extraintestinal pathogenic E. coli (ExPEC) strains and may also act as pathogens for humans. Known APEC virulence factors include adhesin
Publicado em: 2011
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3. Proteomic characterization of the thermostable toxins from Naja naja venom
Naja naja snake venom presents abundant thermostable peptides. Many of them possess useful pharmacological activity that may be employed for drug development. For the proteomic characterization of such toxins, in the present study, Naja naja venom solution was heated up to 100°C for 10, 30, 60, 120, 180 and 300 minutes and protein fractions of non-heated an
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2010
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4. Eterotoxin cytotoxic thermo stables produced by Aeromanas caviae isolated from diarrheic stools in children on the city of São Bento do Una - PE / Enterotoxina citotoxica termo estavel produzida por Aeromonas caviae isoladas de surto de diarreia aguda em crianças na cidade de São Bento do Una - PE
Neste estudo foram analisadas 20 amostras de Aeromonas caviae, isoladas no Estado de Pernambuco, de fezes diarréicas, quanto à produção de fatores de virulência. Os isolados bacterianos apresentaram atividade hemolítica quando crescidos em placas de ágar sangue, porém quando analisados os sobrenadantes de cultura destas bactérias, a presença de hem
Publicado em: 2009
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5. Detection of simplex herpesviruses, Citomegalovirus, Epstein - Barr virus and periodontal pathogens in periodontal pockets of chronic periodontitis and gingivitis patients / Detecção do herpes simples vírus, citomegalovírus, Epstein-Barr vírus e bactérias periodontopatogênicas em bolsas periodontais de pacientes com periodontite crônica e gengivite
Recently, studies have linked the presence of the virus family herpesviridae and periodontal disease, which may be involved in the occurrence and progression of different forms of periodontal disease through the suppression of the immune system of the periodontium, release of cytotoxins, pro-inflammatory mediators and immunopathological events, may promote g
Publicado em: 2009
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6. Purificação e caracterização de um citotoxina produzida por amostras de Enterobacter cloacae isoladas de pacientes com infecção hospitalar / Purification and characterization of a cytotoxin produced by Enterobacter cloacae strains isolated from patients with hospital infection
The bacterium Enterobacter cloacae has been recognized as an important infectious agent in hospitaIs, sometimes leading patients to obit. Studying its virulence properties in our laboratory, 18% of the strains were characterized as cytotoxic against Vero cells. The cytotoxin was purified from the most cytotoxic strain (118.9) by means ionic exchange and mole
Publicado em: 2008
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7. Citotoxinas e hemolisinas produzidas por Campylobacter jejuni isolados de diferentes origens / Citotoxins and hemolysins produced for Campylobacter jejuni isolated from different sources
Membros termofílicos do gênero Campylobacter são reconhecidos como importantes enteropatógenos para o homem e também para outros animais. A grande diversidade ecológica deste microrganismo, encontrado em diferentes habitat tais como: águas, animais e alimentos, indica que estudos sobre os diversos fatores de virulência poderiam contemplar este difere
Publicado em: 2006
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8. Citotoxinas e hemolisinas produzidas por Campylobacter jejuni isolados de diferentes origens / Citotoxins and hemolysins produced for Campylobacter jejuni isolated from different sources
Membros termofílicos do gênero Campylobacter são reconhecidos como importantes enteropatógenos para o homem e também para outros animais. A grande diversidade ecológica deste microrganismo, encontrado em diferentes habitat tais como: águas, animais e alimentos, indica que estudos sobre os diversos fatores de virulência poderiam contemplar este difere
Publicado em: 2006
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9. Cistite : fatores de virulencia da Escherichia coli em sua patogenese
This study investigated the correlation between the local mucosal response and the virulence factors of Escherichia coli strains isolated from the urine of 159 female patients with clinical symtoms of acute cystitis, Based on clinical analyses the patients had either leukocyturia (BL), leukocyturia and hematuria (BLH) or no of leukocyturia (B). The virulence
Publicado em: 1995
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10. Cancer cell injury by cytotoxins from cobra venom is mediated through lysosomal damage
Cytotoxins from cobra venom are known to manifest cytotoxicity in various cell types. It is widely accepted that the plasma membrane is a target of cytotoxins, but the mechanism of their action remains obscure. Using the confocal spectral imaging technique, we show for the first time that cytotoxins from cobra venom penetrate readily into living cancer cells
Portland Press Ltd..
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11. Simplified procedure for tissue culture in routine detection of cytotoxins.
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12. Quantitative analysis and partial characterization of cytotoxin production by Salmonella strains.
The pathogenesis of the wide-spectrum human disease caused by Salmonella species is poorly understood. Cytotoxin production by other enteric pathogens has been increasingly investigated recently, and data are accumulating regarding the role of cytotoxins in enteric infections and hemolytic uremic syndrome. We studied the cytotoxic activity of 131 Salmonella