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| Registros recuperados: 11 | |
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| Della Libera,A.M.M.P; Blagitz,M.G; Souza,F.N; Batista,C.F; Azedo,M.R; Benites,N.R; Melville,P.A; Gomes,V. |
| Avaliou-se a sensibilidade antimicrobiana in vitro de 121 cepas de estafilococos coagulase-negativa isolada de leite de ovelhas Santa Inês, aos fármacos: penicilina, amoxicilina, ampicilina, estreptomicina, oxaciclina, neomicina, cefalotina, gentamicina e sulfonamida. A resistência à sulfonamida foi a mais frequente (27,3%), seguida pela estreptomicina (14,0%) e pela oxaciclina (14,0%), enquanto da gentamicina (1,6%) foi a menos frequente. Todas as cepas foram sensíveis a pelo menos um antimicrobiano, e 20,3% das cepas apresentaram resistência múltipla. Os resultados mostram a importância de Staphylococci coagulase-negativas como agentes causadores de mastite em ovinos, e o perfil de resistência múltipla indica a importância da determinação da resistência... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Ewe; Mastites; Coagulase-negative staphylococci. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000600030 |
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| Ferronatto,J.A.; Souza,F.N.; Libera,A.M.M.P. Della; Vliegher,S. De; Visscher,A. De; Piepers,S.; Blagitz,M.G.; Heinemann,M.B.. |
| RESUMO O objetivo do presente estudo foi avaliar a capacidade de estafilococos não aureus (NAS) isolados de diferentes nichos ecológicos (leite, ambiente e ápice do teto), associados a vacas leiteiras, de inibir os principais agentes etiológicos da mastite bovina (Staphylococcus aureus, Streptococcus agalactiae, Streptococcus uberis e Escherichia coli). Neste estudo, 38 isolados NAS de diferentes nichos ecológicos foram avaliados quanto à capacidade de inibir o crescimento in vitro de importantes patógenos causadores de mastite pelo método cross-streaking. No total, 19 (50%) isolados de NAS (oito isolados de S. chromogenes, 10 de S. fleurettii e um de S. haemolyticus) apresentaram inibição contra os principais patógenos causadores de mastite. No entanto, a... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Dairy cows; Coagulase-negative staphylococci; Intramammary infection. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501745 |
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| Martínez-Meléndez,Adrián; Morfín-Otero,Rayo; Villarreal-Treviño,Licet; Camacho-Ortíz,Adrián; González-González,Gloria; Llaca-Díaz,Jorge; Rodríguez-Noriega,Eduardo; Garza-González,Elvira. |
| Abstract The mechanisms contributing to persistence of coagulase-negative staphylococci are diverse; to better understanding of their dynamics, the characterization of nosocomial isolates is needed. Our aim was to characterize phenotypic and molecular characteristics of Staphylococcus epidermidis and Staphylococcus haemolyticus human blood isolates from two tertiary care hospitals in Mexico, the Hospital Universitario in Monterrey and the Hospital Civil in Guadalajara. Antimicrobial susceptibility was determined. Biofilm formation was assessed by crystal violet staining. Detection of the ica operon and Staphylococcal Cassette Chromosome mec typing were performed by PCR. Clonal relatedness was determined by Pulsed-fiel gel electrophoresis and Multi locus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linezolid resistance; Staphylococcal Cassette; Chromosome mec; Coagulase-negative staphylococci; Multilocus Sequence Typing. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702016000500419 |
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| Rall,V.L.M.; Sforcin,J.M.; Augustini,V.C.M.; Watanabe,M.T.; Fernandes Jr.,A.; Rall,R.; Silva,M.G.; Araújo Jr.,J.P. |
| Food handlers, an important factor in food quality, may contain bacteria that are able to cause foodborne disease. The present study aimed to research coagulase-negative (CNS) and -positive staphylococci (CPS) in 82 food handlers, analyzing nasal and hand swabs, with identification of 62 CNS (75.6%) and 20 CPS strains (24.4%). Staphylococcal enterotoxins genes were investigated by PCR. In 20 CPS strains, 19 were positive for one or more genes. The percentage of CNS presenting genes for enterotoxins was high (46.8%). Despite of the staphylococcal species, the most common gene was sea (35.4%), followed by seh and sej (29.2%). The detection of new staphylococcal enterotoxins (SEs) genes showed a higher pathogenic potential in this genus. The presence of these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcal enterotoxins; Coagulase-negative staphylococci; S. aureus; Food handler. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100011 |
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| D'Azevedo,P.A.; Secchi,C.; Antunes,A.L.S.; Sales,T.; Silva,F.M.; Tranchesi,R.; Pignatari,A.C.C.. |
| In the last decades, coagulase-negative staphylococci (CoNS), especially Staphylococcus epidermidis have become an important cause of bloodstream infections. In addition, rates of methicillin-resistance among CoNS have increased substantially, leading to the use of glicopeptides for therapy. The objective of this study was to evaluate eleven consecutives clinically relevant cases of oxacillin-resistant CoNS bacteremia in a general hospital localized in São Paulo city, Brazil. Five different species were identified by different phenotypic methods, including S. epidermidis (5), S. haemolyticus (3), S. hominis (1), S. warneri (1) and S. cohnii subsp urealyticus (1). A variety of Pulsed Field Gel Electrophoresis profiles was observed by macrorestriction DNA... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coagulase-negative staphylococci; Bacteremia; Oxacillin; PFGE. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000400006 |
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| Alcaráz,Lucía E.; Satorres,Sara E.; Lucero,Rodolfo M.; Centorbi,Olga N. Puig de. |
| Ninety-two coagulase negative staphylococci (CNS) (forty-five of clinical origin and forty-seven of environmental origin), collected in a hospital in San Luis, Argentina, from March to June, 1999, were identified to species level by the ID 32 Staph and API Staph System (bioMérieux). Slime production was investigated by the quantitative and qualitative methods. Oxacillin susceptibility was determined by the disk diffusion test (1 µg), the agar dilution method (0.125 to 4 mg/ml) and agar screen (6 µg/ml). The presence of mecA gene was investigated by PCR. The clinical CNS species most commonly isolated were S. epidermidis, S. haemolyticus, S. hominis and S. saprophyticus. The frequency of slime production by clinical and environmental isolates was similar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coagulase-negative staphylococci; Slime; MecA; Oxacillin-R. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100010 |
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| Oliveira,A; Cunha,MLRS. |
| In addition to their capacity to attach to surfaces, various groups of microorganisms also produce an extracellular polymeric substance known as "slime". This slime forms a thin layer around cells known as biofilm. Thus, biofilm structure comprises bacterial cells and an extracellular polymeric substance. It also presents a defined architecture, providing the microorganisms with an excellent protective environment and favoring the exchange of genetic material between cells as well as intercellular communication. The ability to produce biofilm is observed in a large group of bacteria, including coagulase-negative staphylococci (CNS) which are the predominant microorganisms of normal skin flora and have been implicated as the causative agents of hospital... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coagulase-negative staphylococci; Biofilm; Slime; Infection; Microbiology. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400003 |
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| Registros recuperados: 11 | |
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