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| Registros recuperados: 148 | |
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| Paes,P.R.O.; Lopes,S.T.A.; Lopes,R.S.; Kohayagawa,A.; Takahira,R.K.; Langoni,H.. |
| O trabalho teve por objetivo estudar os efeitos da administração de vitamina E sobre a contagem de células somáticas e a infecção da glândula mamária de cabras primíparas desafiadas com a inoculação intramamária de Staphylococcus aureus ao 10º dia pós-parto. Vinte e oito animais foram divididos em quatro grupos, cada um composto por sete cabras primíparas da raça Saanen, como segue: grupo-controle, grupo de animais suplementados com vitamina E, grupo de animais desafiados com S.aureus inoculados na glândula mamária e grupo de animais suplementados com vitamina E e desafiados com S.aureus na glândula mamária. Na segunda e terceira semanas de lactação, a inoculação de S.aureus na glândula mamária permitiu a recuperação do microrganismo no leite e elevou a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caprino; Mastite; Staphylococcus aureus; Contagem de células somáticas; Vitamina E. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100003 |
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| Bazzaz,Bibi Sedigheh Fazly; Memariani,Zahra; Khashiarmanesh,Zahra; Iranshahi,Mehrdad; Naderinasab,Mahbobeh. |
| Galbanic acid, a sesquiterpene coumarin from Ferula szowitsiana roots, was investigated for its potentiating effect on the antimicrobial activity of antibiotics as well as ethidium bromide, in 6 multidrug resistance (MDR) clinical isolates of Staphylococcus aureus. Galbanic acid had inhibitory effect on none of the isolated bacteria tested (up to 800 µg /ml). The MIC range of ciprofloxacin, tetracycline and ethidium bromide, against all tested S. aureus were 10-80, 10-80 and 4-16 µg/ml, respectively. These were reduced to ≤2.5-5, 2.5-5 and 0.5-2 µg/ml in the presence of galbanic acid (300 µg /ml) or verapamil (100 µg /ml). The rate of ethidium bromide (2 µg /ml) accumulation in clinical isolates was enhanced with galbanic acid (300 µg /ml). There is also a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Efflux pump inhibitor; Ferula szowitsiana; Galbanic acid; Staphylococcus aureus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300006 |
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| Rahimi,Ebrahim. |
| This study was conducted to determine the prevalence rate, enterotoxigenecity, and antimicrobial resistance of S. aureus isolated from dairy products in Iran. From September 2010 to July 2011, a total of 347 samples from various dairy products, traditional and commercial, were collected from randomly selected retail stores. Overall, 20 samples (5.8%) were found to be contaminated with S. aureus. The highest prevalence of S. aureus was found in traditional cheese (11.1%), followed by traditional ice-cream (5.9%), cream (5.6%), and butter (5.3%). The ability to synthesize classical staphylococcal enterotoxins (SEA-E) was determined in 7 of 20 (35%) isolates by using ELISA. SE type C was the most common enterotoxin found in the isolated S. aureus (42.9%),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial resistance; Dairy products; SE genes; Staphylococcal enterotoxins; Staphylococcus aureus. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200008 |
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| Assumpção,E.G.; Piccoli-Valle,R.H.; Hirsch,D.; Abreu,L.R.. |
| Com o objetivo de identificar as principais fontes de contaminação por Staphylococcus aureus e Staphylococcus produtores de coagulase (SC+), avaliou-se o processo de fabricação de queijo prato em um laticínio de Lavras, MG, durante os meses de outubro de 2000 a abril de 2001. As análises microbiológicas foram feitas no leite cru, no leite pasteurizado resfriado, nas mãos e antebraços dos funcionários, na salmoura, na água de imersão das fôrmas e no queijo embalado. Contagens elevadas de SC+ e de S. aureus (4x10³ a 4,8x10(6) UFC/ml e 4x10³ a 3,3x10(5) UFC/ml, respectivamente) foram encontradas em quatro avaliações no leite cru. Após a pasteurização, as contagens foram reduzidas a <1 UFC/ml. Em três das cinco avaliações, o queijo prato apresentou... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Queijo prato; Staphylococcus aureus; Condição higienico-sanitária. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300019 |
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| Marques,Simone Cristina; Rezende,Jaíne das Graças Oliveira Silva; Alves,Lizandra Aparecida de Freitas; Silva,Belami Cássia; Alves,Eduardo; Abreu,Luiz Ronaldo de; Piccoli,Roberta Hilsdorf. |
| The objectives of this work were to verify the capability of Staphylococcus aureus of forming bio-film on stainless steel and glass surfaces; to evaluate the efficiency of sodium dichloroisocyanurate, hydrogen peroxide and peracetic acid in inactivating Staphylococcus aureus cells adhered onto these surfaces; and to visualize biofilm development by scanning electron microscopy before and after sanitizer treatment. The surfaces studied consisted of 10x20mm chips immersed in Petri dishes containing BHI broth inoculated with S. aureus ATCC 25923. Biofilm formation was observed after 15-day incubation, when the cells were removed using the swab technique, followed by Baird Parker agar plating. Also, the efficiency of the chemical sanitizers on the chip... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofilm; Stainless steel; Glass; Staphylococcus aureus; Sanitizers; Scanning electron microscopy. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000300029 |
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| Primo,Mariusa Gomes Borges; Guilarde,Adriana Oliveira; Martelli,Celina M. Turchi; Batista,Lindon Johnson de Abreu; Turchi,Marília Dalva. |
| This study aimed to determine the excess length of stay, extra expenditures, and attributable mortality to healthcare-associated S. aureus bloodstream infection (BSI) at a teaching hospital in central Brazil. The study design was a matched (1:1) case-control. Cases were defined as patients > 13 years old, with a healthcare-associated S. aureus BSI. Controls included patients without an S. aureus BSI, who were matched to cases by gender, age (± 7 years), morbidity, and underlying disease. Data were collected from medical records and from the Brazilian National Hospital Information System (Sistema de Informações Hospitalares do Sistema Único de Saúde - SIH/SUS). A Wilcoxon rank sum test was performed to compare length of stay and costs between cases... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; Bloodstream infection; Attributable mortality; Length of stay; Extra costs. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000600001 |
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| Korn,Gustavo P.; Martino,Marinês D. V.; Mimica,Igor M.; Mimica,Lycia J.; Chiavone,Paulo A.; Musolino,Luiz R. de S.. |
| Colonization of hospitalized patients with methicillin-resistant Staphylococcus aureus (MRSA) is of increasing concern. To evaluate this problem in Intensive Care Units (ICUs) in Brazil, we studied 100 patients admitted to two ICUs from April to June, 1997. Of the 100 patients, 70 were male, 53 were age 60 years or older, 55 were previously hospitalized, 78 were transferred to the ICU from other hospital units, 49 had received antibiotic therapy, and 66 had undergone recent surgery. Nasal and axillary swab cultures were obtained on admission and every 48 hours thereafter until discharge. MRSA were identified by plating any cultured S. aureus on Mueller-Hinton agar containing 6mug/ml of oxacillin. At the time of admission, 46 (46%) of the patients were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; Methicillin resistance; Hospital infections. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702001000100001 |
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| Cavalcante,F.S.; Abad,E.D.; Lyra,Y.C.; Saintive,S.B.; Ribeiro,M.; Ferreira,D.C.; Santos,K.R.N. dos. |
| Staphylococcus aureus is highly prevalent among patients with atopic dermatitis (AD), and this pathogen may trigger and aggravate AD lesions. The aim of this study was to determine the prevalence of S. aureus in the nares of pediatric subjects and verify the phenotypic and molecular characteristics of the isolates in pediatric patients with AD. Isolates were tested for antimicrobial susceptibility, SCCmec typing, and Panton-Valentine Leukocidin (PVL) genes. Lineages were determined by pulsed-field gel electrophoresis and multilocus sequence typing (MLST). AD severity was assessed with the Scoring Atopic Dermatitis (SCORAD) index. Among 106 patients, 90 (85%) presented S. aureus isolates in their nares, and 8 also presented the pathogen in their skin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atopic dermatitis; Staphylococcus aureus; Nasal colonization; Skin lesions; SCORAD. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000700588 |
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| Sá,Marcos Eielson Pinheiro de; Cunha,Maria de Lourdes Ribeiro de Souza da; Elias,Acacia Orieth; Victória,Cassiano; Langoni,Helio. |
| O Staphylococcus aureus é um dos principais agentes das mastites consideradas contagiosas, apresentando elevada incidência na maioria dos rebanhos leiteiros em vários países. Além de perdas econômicas é importante salientar o aspecto de saúde pública para cepas produtoras de enterotoxinas e da toxina do choque tóxico. A enterotoxina A, relacionada com maior ênfase nos casos de toxinfecções alimentares, pode ser veiculada pelo leite cru, pasteurizado e subprodutos lácteos. A síndrome do choque tóxico é determinada mais freqüentemente pela toxina do choque tóxico, porém as enterotoxinas do tipo B e C também podem ser implicadas. O objetivo deste estudo foi verificar a ocorrência de S.aureus produtores de enteroxinas e da toxina do choque tóxico em amostras... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mastite; Subclinica; Bovino; Staphylococcus aureus; Enterotoxinas. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962004000500005 |
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| dos Santos,D.P.; Muniz,I.P.R.; Queiroz,A.F.; Pereira,I.S.; Souza,M.P.A.; Lima,L.J.; Sousa,L.R.O.; Ribeiro,I.S.; Galantini,M.P.L.; Marques,L.M.; Figueiredo,T.B.; da Silva,R.A.A.. |
| Bacterial infections occur worldwide and are a major public health problem. Among pathogens, Staphylococcus aureus is the main causative agent of bacterial diseases in the world. This study aimed to evaluate which components of the immune system could act protectively against a S. aureus infection in intradermally immunized mice. C57BL/6 and A/j mice were immunized intradermally with S. aureus inactivated by heat and then challenged with viable strains in an air pouch model. At 6, 12, and 24 h after the challenge, euthanasia was performed, and the cellular profile of the inflammatory infiltrate, cytokines, and the bacterial load were evaluated in the air pouch lavages. Immunized mice demonstrated that the intradermal immunization with S. aureus promoted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immunization; Staphylococcus aureus; Mice; Air pouch; Antibodies. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000500616 |
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| Registros recuperados: 148 | |
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