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Registros recuperados: 66 | |
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Jouault, Albane; Gobet, Angelique; Simon, Marjolaine; Portier, Emilie; Perennou, Morgan; Corre, Erwan; Gaillard, Fanny; Vallenet, David; Michel, Gurvan; Fleury, Yannick; Bazire, Alexis; Dufour, Alain. |
The aim was to identify and study the antibiofilm protein secreted by the marine bacterium Pseudoalteromonas sp. 3J6. The latter is active against marine and terrestrial bacteria, including Pseudomonas aeruginosa clinical strains forming different biofilm types. Several amino acid sequences were obtained from the partially purified antibiofilm protein, named alterocin. The Pseudoalteromonas sp. 3J6 genome was sequenced and a candidate alt gene was identified by comparing the genome-encoded proteins to the sequences from purified alterocin. Expressing the alt gene in another non-active Pseudoalteromonas sp. strain, 3J3, demonstrated that it is responsible for the antibiofilm activity. Alterocin is a 139-residue protein including a predicted 20-residue... |
Tipo: Text |
Palavras-chave: Antibiofilm protein; Pseudoalteromonas; Pseudomonas aeruginosa; Biofilm. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75517/76405.pdf |
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Sánchez,Lilian; Tromps,Jeannette. |
Las propiedades beneficiosas de las bacterias ácido lácticas (BAL) posibilitan su uso como probióticas en animales y humanos. El objetivo del presente trabajo fue caracterizar, mediante pruebas in vitro, cepas BAL procedentes de fuente animal para considerar su posterior aplicación como probiótico en animales. Se evaluaron 72 cepas, identificadas hasta el nivel de género, de Lactobacillus spp., Leuconostoc spp., Lactococcus spp., Streptococcus spp. y Pediococcus spp. A todas las cepas se les determinó su estabilidad de crecimiento a diferentes pH, temperatura y tolerancia a altas concentraciones de cloruro de sodio. De ellas se seleccionaron 14 cepas que presentaron las mejores características como candidatos a probióticas por sus resultados a las pruebas... |
Tipo: Journal article |
Palavras-chave: Bacterias ácido-láctica; Probióticos; Bacillus cereus; Staphylococcus aureus; Salmonella spp.; Pseudomonas aeruginosa. |
Ano: 2014 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2014000200008 |
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F. LUCENA,Bruno F; TINTINO,Saulo R; FIGUEREDO,Fernando G; DE M. OLIVEIRA,Cícera Datiane; DOS S. AGUIAR,José J; DO N. CARDOSO,Edmilson; A. DE AQUINO,Pedro E; ANDRADE,Jacqueline C; M. COUTINHO,Henrique D; F. MATIAS,Ednardo F. |
Vários trabalhos vêm demonstrando a importância do estudo de produtos naturais como fonte alternativa para novos antimicrobianos ou que venham potencializar os já existentes. Neste contexto este trabalho teve como objetivo investigar a atividade antibacteriana e as possíveis interações entre o óleo essencial de Cymbopogon citratus combinados a aminoglicosídeos frente a linhagens padrões e multirresistentes de S. aureus, E. coli e de P. aeruginosa provenientes de isolados clínicos. Um ensaio de microdiluição foi realizado para verificar a atividade antibacteriana e as possíveis interacções entre o produto natural e os antibióticos, utilizando uma concentração sub-inibitória. Através dos resultados foi constatado a interferência sinérgica dos... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cymbopogon citratus; Escherichia coli; Óleo essencial; Pseudomonas aeruginosa; Staphylococcus aureus. |
Ano: 2015 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100005 |
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González Rizo,Aileen; Salazar Rodríguez,Daniel; López Sierra,Odalis; Barrios Martínez,Zoyla; Martínez Izquierdo,Alicia. |
Los pacientes portadores de enfermedad fibroquística presentan manifestaciones respiratorias a repetición o crónicas, las cuales se acompañan de infecciones bacterianas. Pseudomonas aeruginosa es la especie bacteriana que se aísla con mayor frecuencia en estos pacientes a partir de muestras de origen respiratorio. Teniendo en cuenta que las infecciones por esta bacteria son difíciles de tratar y que la terapia usualmente empleada es la combinación de un aminoglucósido con un antibiótico beta-lactámico, se analizó el comportamiento por el método de microdilución en caldo de 54 cepas aisladas de pacientes con fibrosis quística frente a cuatro beta-lactámicos (carbenicilina, azlocilina, cefotaxima, ceftazidima), y se observó que el 85% de las cepas fueron... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pseudomonas aeruginosa; Fibrosis quística; Beta-lactámicos; Sensibilidad in vitro.. |
Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572007000100009 |
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Ribeiro,M.G.; Siqueira,A.K.; Langoni,H.; Paes,A.C.; Victória,C.; Silva,A.V. Da; Listoni,F.J.P.; Souza,A.H.. |
A concentração inibitória mínima-MIC em 30 estirpes de Pseudomonas aeruginosa isoladas de mastite bovina foi avaliada utilizando o E-test padrão e o método modificado, pela adição de Tris-EDTA e DMSO. Os métodos modificados apresentaram redução significativa da MIC das estirpes utilizando a gentamicina, a ciprofloxacina e a norfloxacina. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine; Mastitis; Pseudomonas aeruginosa; Minimal inhibitory concentration. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000500017 |
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Lima,L.A.; Lima,C.D.L.C.; Carvalho,L.R.; Margutti-Pinto,M.E.B.. |
The heteroantagonism between Enterobacter agglomerans, isolated from the gastrointestinal tract of American vulture Coragyps atratus, and Pseudomonas aeruginosa isolated from a hospital environment was evaluated. The slow (layer) and the wells (direct) techniques were tested, using agar and soy tryptone broth pH 7.3 at 37ºC. Through the slow method from 196 tests, inhibition growth halos, related heteroantagonism phenomenon observed in 118, corresponding to 60.2% positive results. Equivalent positive results were detected using wells (direct) methodology. The seven samples of E. agglomerans tested were capable of revealing heteroantagonism in the experimental conditions; antagonism reveled by the presence of a clear growth inhibition halo. The added 1%... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heteroantagonism; Culture; Enterobacter agglomerans; Pseudomonas aeruginosa. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300010 |
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Tanaka,E.M.; Ribeiro,M.G.; Megid,J.; Listoni,F.J.P.. |
In vitro antimicrobial susceptibility of strains of Pseudomonas aeruginosa by standard diffusion disk test and a modified method, by the addition Tris-EDTA, was evaluated. Increase in sensitivity of agent using modified method was observed mainly in aminoglycosides (amikacin, gentamicin, tobramycin), quinolones (ofloxacin and norfloxacin) and cephalosporins (cefoperazone and ceftazidime) groups. by standard diffusion disk test and a modified method, by the addition Tris-EDTA, was evaluated. Increase in sensitivity of agent using modified method was observed mainly in aminoglycosides (amikacin, gentamicin, tobramycin), quinolones (ofloxacin and norfloxacin) and cephalosporins (cefoperazone and ceftazidime) groups. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pseudomonas aeruginosa; Sensibilidade antimicrobiana; Tris-EDTA. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352002000300020 |
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Rocha,Antônio José; Barsottini,Mario Ramos de Oliveira; Rocha,Renan Rhonalty; Laurindo,Maria Vitória; Moraes,Francisco Leandro Laurindo de; Rocha,Soraya Lília da. |
Abstract In this review, we explore some aspects of Pseudomonas aeruginosa virulence factors that are related to disease development in healthy organisms and resistance to antibiotics. This pathogen is one of the most clinically and epidemiologically important bacteria in Brazil, being the major cause of opportunistic infections. Among the virulence factors, biofilm formation acting of manner different in the organism. Furthermore, we review several P. aeruginosa genes that act in antimicrobial resistance, such as β-lactamases against β-lactamers. The resistance to pied-lactamases in P. aeruginosa is associated to resistance to the broad-spectrum cephalosporin. On the other hand, there is a group of synthetic broad-spectrum antibiotics acting on DNA... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pseudomonas aeruginosa; Virulence factors; Antimicrobial activities; Biofilms; Β-lactamase. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100902 |
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Sousa,Letícia Pinheiro de; Silva,Annelisa Farah da; Calil,Natalia Oliveira; Oliveira,Murilo Gomes; Silva,Silvio Silvério da; Raposo,Nádia Rezende Barbosa. |
This study evaluated, in vitro, the antimicrobial activity and the anti-adherent property of xylitol (0.5, 2.5 and 5.0%, w/v) on two Pseudomonas aeruginosa strains (ATCC 9027 and clinical). The assay of antimicrobial activity was performed to determine a minimum inhibitory concentration (MIC) and the adhesion test was performed, by which the parameters regarding, growth in the culture medium, number of colony forming units (CFUs) released and slide evaluation by scanning electron microscopy (SEM) were analyzed. The Statistical Package for the Social Sciences (SPSS) was employed for statistical analysis. Results showed that xylitol had no antimicrobial activity on these strains; however, the inhibition of bacterial adherence was observed in microphotographs... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial adhesion; Pseudomonas aeruginosa; Prevention and control; Xylitol. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500004 |
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Fortaleza,Carlos Magno Castelo Branco; Figueiredo,Lígia Castellon; Beraldo,Carolina Contador; Melo,Edson Carvalho de; Póla,Patrícia Maria Sales; Aragão,Valéria Drummond Nagem. |
Oropharyngeal carriage of Pseudomonas aeruginosa is associated with increased risk of infection and may provide a source for spread of drug-resistant strains. In order to assess the incidence and risk factors of oropharyngeal carriage, we conducted a retrospective cohort study based on results of surveillance cultures (oropharyngeal swabs) from a medical-surgical intensive care unit, collected from March 2005 through May 2006. Variables investigated included demographic characteristics, comorbid conditions, invasive procedures, use of devices and use of antimicrobials. Thirty case patients with P. aeruginosa carriage were identified. Other 84 patients with surveillance cultures negative to P. aeruginosa were enrolled as control subjects. Case patients were... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pseudomonas aeruginosa; Colonization; Oropharyngeal carriage; Surveillance cultures; Intensive care unit. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000300004 |
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Nagaya,Leonardo Hideto; Salles,Mauro José Costa; Takikawa,Lucas Sadawo Chagas; Fregoneze,Marcelo; Doneux,Pedro; Silva,Luciana Andrade da; Sella,Guilherme do Val; Miyazaki,Alberto Naoki; Checchia,Sergio Luiz. |
ABSTRACT Purposes: Shoulder arthroplasty (SA) has been performed by many years for the treatment of several conditions, including osteoarthritis and proximal humeral fractures following trauma. Surgical site infection (SSI) following Shoulder arthroplasty remains a challenge, contributing to increased morbidity and costs. Identification of risk factors may help implementing adequate strategies to prevent infection. We aimed to identify pre- and intra-operative risk factors associated with deep infections after Shoulder arthroplasty. Methods: An unmatched case-control study was conducted to describe the prevalence, clinical and microbiological findings, and to evaluate patient and surgical risk factors for prosthetic shoulder infection (PSI), among 158... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orthopedic infection; Hemiarthroplasty; Total shoulder arthroplasty; American Society of Anesthesiologists score; Risk factor; Pseudomonas aeruginosa. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702017000600613 |
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Registros recuperados: 66 | |
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