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Registros recuperados: 19
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4-Hydroxy-pyran-2-one and 3-hydroxy-N-methyl-2-oxindole derivatives of Salinispora arenicola from Brazilian marine sediments. Repositório Alice
SILVA, A. B. DA; PINTO, F. DAS C. L.; LOTUFO, L. V. COSTA; COSTA, W. S.; AYALA, A. P.; CANUTO, K. M.; BARROS, A. B.; ARAÚJO, A. J.; FILHO, J. D. B. M.; PESSOA, O. D. L..
bitstream/item/209173/1/ART19131.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Antimicrobial activity; Salinispora arenicola; Análise; Enterococcus faecalis.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119005
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Aplicação da PCR na identificação de Enterococcus faecium e Enterococcus faecalis em queijos artesanais. Infoteca-e
SOARES, C. M.; KABUKI, D. Y.; KUAYE, A. Y..
2010
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Enterococcus faecium; Enterococcus faecalis; Metodologia; Queijo.
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/874458
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Avaliação de características fenotípicas de virulência de estirpes de Enterococcus spp isoladas de queijos de coalho. Repositório Alice
FUJIMOTO, G.; KUAYE, A. Y.; BORGES, M. de F.; BRUNO, L. M.; CARVALHO, J. D. G..
2010
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Gelatinase; Hémolise; Enterococcus faecium; Enterococcus faecalis.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/877453
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Characterization of bacteriocin production, safety and technological potential of two Enterococcus faecium stains isolated from Brazilian Artisanal Cheeses. Repositório Alice
SANTOS, K. M. O. dos; VIEIRA, A. D. S.; OLIVEIRA, J. da; ROCHA, C. R. C.; LOPES, A. C. S.; BRUNO, L. M.; BORGES, M. de F.; FRANCO, B. D. G. M.; TODOROV, S..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Produção artesanal; Queijo artesanal; Anti-Listeriamonocytogenes activity; Bacteriocin-like substance; Bactérias láticas; Tecnologia de alimento; Coalho; Cheese; Bacteriocin; Enterococcus faecalis; Enterococcus faecium; Lactic acid bacteria.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/977456
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Clinical, epidemiological, and microbiological characteristics of bacteremia caused by high-level gentamicin-resistant Enterococcus faecalis BJMBR
Vigani,A.G.; Macedo de Oliveira,A.; Bratfich,O.J.; Stucchi,R.S.B.; Moretti,M.L..
Enterococcus spp bacteremia is associated with high mortality and the appearance of high-level gentamicin resistance (HLGR) created additional challenges for the treatment of these infections. We evaluated the epidemiological and clinical characteristics of patients with bacteremias caused by HLGR and non_HLGR Enterococcus faecalis isolates at a teaching hospital in the State of São Paulo, Brazil. Patients with bacteremia due to E. faecalis diagnosed between January 1999 and December 2003 were included in the study. We collected clinical, epidemiological, and microbiological data from medical records. Banked isolates were typed using pulsed-field gel electrophoresis. We identified 145 cases of E. faecalis bacteremia: 66 (45.5%) were caused by HLGR isolates...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Enterococcus faecalis; Bacteremia; High-level gentamicin resistance; Infection control; Enterococcus faecalis genotyping.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001000010
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Clonal dissemination of VanA-type glycopeptide-resistant Enterococcus faecalis between hospitals of two cities located 100 km apart BJMBR
Moretti,M.L.; Bratfich,O.J.; Stucchi,R.B.; Levi,C.; Levin,A.S.; Duboc,G.M.; Vormittag,E.; Blum-Menezes,D..
Nosocomial dissemination of glycopeptide-resistant enterococci represents a major problem in hospitals worldwide. In Brazil, the dissemination among hospitals in the city of São Paulo of polyclonal DNA profiles was previously described for vancomycin-resistant Enterococcus faecium. We describe here the dissemination of VanA phenotype E. faecalis between two hospitals located in different cities in the State of São Paulo. The index outbreak occurred in a tertiary care university hospital (HCUSP) in the city of São Paulo and three years later a cluster caused by the same strain was recognized in two patients hospitalized in a private tertiary care hospital (CMC) located 100 km away in the interior of the state. From May to July 1999, 10 strains of...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Vancomycin-resistant Enterococcus; Enterococcus faecalis; Tn1546; Nosocomial transmission; São Paulo.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000900008
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Clonal diversity and antimicrobial resistance of Enterococcus faecalis isolated from endodontic infections Electron. J. Biotechnol.
Suliman Al-Badah,Abdulhakim; S.S. Ibrahim,Abdelnasser; Al-Salamah,Ali A; Ibrahim,Shebl Salah S.
Background Enterococcus faecalis is considered to be one of most prevalent species in the oral cavity, particularly in endodontic infections. The aim of the present study was to investigate the prevalence of E. faecalis in dental root canals, clonal diversity by restriction fragment length polymorphism (RFLP) and randomly amplified polymorphic DNA (RAPD-PCR) analysis, and the antibiotic susceptibility of E. faecalis isolates. Results Among the bacterial strains isolated from dental root canal specimens (n = 82), E. faecalis was determined to have the highest prevalence followed by Streptococcus viridians, Leuconostoc mesenteroides, Staphylococcus aureus, Streptococcus mitis, and Pediococcus pentosaceus. Cluster analysis of RAPD-PCR and RFLP patterns of the...
Tipo: Journal article Palavras-chave: Antimicrobial susceptibility; Endodontic infection; Enterococcus faecalis; Genotype; RAPD; RFLP.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300006
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Clustering of Enterococcus faecalis infections in a cardiology hospital neonatal intensive care unit BJID
Strabelli,Tânia Mara Varejão; Cais,Daiane P.; Zeigler,Rogério; Siciliano,Rinaldo; Rodrigues,Cristhieni; Carrara,Dirceu; Neres,Suzi; Lessa,Sarita; Uip,David Everson.
Early identification of an outbreak is one of the main advantages of routine epidemiological surveillance. Enterococcus spp. used to be regarded as microorganisms of low pathogenicity, because they are part of the normal microbial flora of the gastrointestinal and genitourinary tract. Recently, they have emerged as important pathogenic agents, sometimes causing infections with high mortality rates. We studied a clustering of primary bloodstream infections caused by Enterococcus faecalis in a cardiology hospital neonatal intensive care unit (NICU). Four cases of primary bloodstream infection by E. faecalis were detected from April 15 to May 13, 2004, during active infection surveillance. The isolates were sensitive to glycopeptides. Some aspects of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Clustering; Neonatal intensive care unit; Bloodstream; Infection.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000200008
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Enterococcus faecalis resistant to vancomycin and teicoplanin (VanA phenotype) isolated from a bone marrow transplanted patient in Brazil BJID
Cereda,Rosangela F.; Sader,Helio S.; Jones,Ronald N.; Sejas,Lilian; Machado,Antônia M.; Zanatta,Yara P.; Rego,Sinaida T. M. S.; Medeiros,Eduardo A. S..
We report for the first time in Brazil, a patient from whom an Enterococcus faecalis VanA phenotype was isolated. Glycopeptide resistance is not commonly observed in Enterococcus faecalis, so this finding is of great concern since this species is responsible for 90% of enterococcal infections in Brazil. The isolate was recovered from a surveillance rectal swab culture from a patient with acute lymphocytic leukemia (ALL). Identification to the species level was performed by conventional biochemical tests and Vitek GPI cards. Antimicrobial susceptibility testing was evaluated by use of broth microdilution and Etest (AB BIODISK, Solna, Sweden) methods. The isolate was identified as E. faecalis and was considered resistant to both vancomycin (MIC, > 256...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Enterococcus faecalis; Glycopeptide resistance; VanA; Initial case report; Transplant.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000100007
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First report of vancomycin-resistant Enterococcus faecalis in Uberaba, Minas Gerais state BJM
Conceição,Natália; Darini,Ana Lúcia da Costa; Palazzo,Izabel Cristina Vanzato; Oliveira,Cristina da Cunha Hueb Barata de; Oliveira,Adriana Gonçalves de.
In this study we report the first isolation of VanA-type vancomycin-resistant Enterococcus faecalis strains from two different patients hospitalized in the same intensive care unit at the hospital of Universidade Federal do Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Vancomycin resistance; Enterococcus faecalis; VanA genotyping.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100007
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In vitro activity of Amazon plant extracts against Enterococcus faecalis BJM
Castilho,Adriana Lígia de; Silva,Juliana Paola Correa da; Saraceni,Cintia Helena Coury; Díaz,Ingrit Elida Collantes; Paciencia,Mateus Luís Barradas; Varella,Antonio Drauzio; Suffredini,Ivana Barbosa.
Previous studies analyzing 2,200 plant extracts indicated anti-enterococcal activity in 25 extracts obtained from Brazilian forests' plants. In the present study, these extracts were subjected to microdilution broth assay (MDBA) and disk diffusion assay (DDA) using planktonic Enterococcus faecalis ATCC® 29212TM and were submitted to phytochemical analysis in TLC and HPLC. Three extracts obtained from Ipomoea alba (MIC < 40 µg/mL), Diclinanona calycina (MIC < 40 µg/mL) and Moronobea coccinea (40 < MIC < 80 µg/mL; MBC = 80 µg/mL) showed significant bactericidal activity in the MDBA and four extracts obtained from I. alba (14.04 ± 0.55 mm diameter) S. globulifera (14.43 ± 0.33 mm and 12.18 ± 0.28 mm diameter) and Connarus ruber var. ruber (13.13 ±...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Endodontitis; Antibacterial activity; Amazon rain forest; Bioprospection.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300002
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In vitro fosfomycin activity in vancomycin-resistant Enterococcus faecalis BJID
Superti,Silvana; Dias,Cícero Armídio Gomes; d'Azevedo,Pedro Alves.
Enterococci are part of the endogenous flora of human beings, are naturally resistant to several classes of antimicrobials, and are able to acquire resistance with relative ease. Currently the vancomycin-resistant enterococci are spread all over the world and treatment options for infections caused by it are often extremely limited. We assessed 193 vancomycin-resistant Enterococcus faecalis isolates collected from four different hospitals in Porto Alegre for their susceptibility to fosfomycin using the E-test and agar diffusion. Fosfomycin proved to be active in vitro against the great majority of isolates, indicating that it is a valid option in the treatment of these infections.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Vancomycin-resistance; VRE; Fosfomycin.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000200010
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Incidence of virulence determinants in clinical Enterococcus faecalis and Enterococcus faecium isolates collected in Bulgaria BJID
Strateva,Tanya; Atanasova,Daniela; Savov,Encho; Petrova,Guergana; Mitov,Ivan.
Abstract Objectives To evaluate the prevalence of some virulence genes among 510 clinical Enterococcus spp. isolates and to assess the association of those genes with the species, infection site, and patient group (inpatients/outpatients). Methods Adhesins genes (aggregation substances agg and asa1 of Enterococcus faecalis and Enterococcus faecium, respectively), enterococcal surface protein (esp), endocarditis-specific antigen A (efaA), collagen-binding proteins (ace/acm)); invasins (hyaluronidase (hyl) and gelatinase (gelE)); cytotoxines (activation of cytolysin (cylA) in E. faecalis); and modulators of the host immunity and inflammation (enhanced expression pheromone (eep) in E. faecalis) were detected by polymerase chain reaction. Results The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Enterococcus faecium; Virulence genes; Prevalence.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000200127
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Perfil de resistência a antibióticos de estirpes de Enterococcus spp isoladas de queijo de coalho. Repositório Alice
FUJIMOTO, G.; KUAYE, A. Y.; BORGES, M. de F.; CARVALHO, J. D. G.; KABUKI, D. Y..
2010
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Disco-difusão; Antimicrobianos; Enterococcus faecium; Enterococcus faecalis.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/877727
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Screening of enzymatic activities for the depolymerisation of the marine bacterial exopolysaccharide HE800 ArchiMer
Rigouin, Coraline; Delbarre-ladrat, Christine; Ratiskol, Jacqueline; Sinquin, Corinne; Colliec-jouault, Sylvia; Dion, Michel.
Tipo: Text Palavras-chave: Polysaccharide; Enzymatic depolymerisation; Low-molecular-weight derivatives; Enterococcus faecalis; Endo-N-acetyl-galactosaminidase.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00098/20907/18741.pdf
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Soy Protein Isolate-Alginate Microspheres for Encapsulation ofEnterococcus faecalis HZNU P2 BABT
Zhang,Yu; Zheng,Wei; Gu,Jian-Fei; Ni,Jian; Wang,Ling; Tang,Zhen-Xing; Shi,Lu-E.
ABSTRACTIn this work, the mixture of alginate and soy protein isolate used as a wall material was developed to encapsulateEnterococcus faecalis HZNU P2 (E. faecalis HZNU P2). The survival ability in the simulated gastric fluid (SGF) and bile salt solution, storage stability at different temperatures and release properties in the simulated intestinal fluid (SIF) of encapsulated cells were assessed. The results showed that encapsulation could offer sufficient protection toE. faecalis HZNU P2. The viability of encapsulatedE. faecalis HZNU P2 did not decrease in SGF at pH 2.5 or 2.0 after 2 h incubation, while free cells were reduced from 11 to 9.85 log CFU/mL in SGF (pH 2.5) at the same exposure time. Only minor viability of encapsulatedE. faecalis HZNU P2...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Encapsulation; Soy protein isolate; Alginate; Stability; Viability.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500805
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Study on the susceptibility of Enterococcus faecalis from infectious processes to ciprofloxacin and vancomycin J. Venom. Anim. Toxins incl. Trop. Dis.
Genaro,A.; Cunha,M. L. R. S.; Lopes,C. A. M..
Enterococcus faecalis is considered a pathogen responsible for hospital infections and, due to its frequent multi-resistant profile, has caused preoccupations among many medical authorities. The objective of this study was to determine the antimicrobial susceptibility of 74 strains isolated from blood cultures and purulent secretions to vancomycin and ciprofloxacin through the Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) by using the Microdilution test. The results showed a greater efficacy of vancomycin compared to ciprofloxacin (98.6% of the strains were inhibited by vancomycin at lower concentrations: 0.06 - 1 µg/ml). However, in the MBC analysis 73% of the strains showed a MBC of vancomycin only at high...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Vancomycin; Ciprofloxacin; Resistance; Spontaneous mutation.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992005000300004
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Virulence factors in vancomycin-resistant and vancomycin - susceptible Enterococcus faecalis from Brazil BJM
Camargo,I. L. B. C.; Zanella,R. C.; Gilmore,M. S.; Darini,A. L. C..
Enterococci are members of commensal flora of animals and insects, but are also important opportunistic pathogens. Our objective was to observe if there was any difference of virulence in several groups of E. faecalis, mainly between vancomycin-resistant E. faecalis (VREFS) of colonization and infection. VREFS and vancomycin-sensitive E. faecalis from Brazil were screened for the presence of virulence factor genes. Phenotypic assays were used to assess in vitro expression, to understand the pathogenic potential of these isolates and to determine whether a correlation exists between virulence and antibiotic resistance. Different virulence profiles were found suggesting that the disseminating clone may have generated several variations. However, our study...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; VRE; Esp; Gelatinase; Aggregation substance.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200014
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Virulence-associated characteristics of Enterococcus faecalis strains isolated from clinical sources BJM
Furumura,Márcia T.; Figueiredo,Patricia M.S.; Carbonell,Gleize V.; Darini,Ana Lucia da Costa; Yano,Tomomasa.
Thirty-two clinical isolates of Enterococcus faecalis were screened for virulence factors. Twenty-four (75%) isolates produced hemolysin on Mueller-Hinton blood agar plates with sheep erythrocytes. However, the cell free heat-stable hemolysin was detected in all isolates (100%) of E. faecalis when grown in BHI-GA (BHI medium supplemented with 1% glucose and 0.03% L-arginine), but not in BHI broth alone. Twenty-four isolates (75%) produced caseinase and 23 (71.9%) lipase, but none of the isolates produced gelatinase. Fifteen (46.9%) culture filtrates caused rounding and membrane alterations with blebbing formation followed by death in HeLa and HEp-2 cells, but not in Vero cells. Thirteen isolates (40.6%) agglutinated rabbit erythrocytes, but did not produce...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Enterococcus faecalis; Virulence factors; Hemolysin; Proteases; Lipase; Cytotoxin; Biofilm.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300007
Registros recuperados: 19
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