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| Registros recuperados: 148 | |
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| Cunha,M.N.C; Silva,N.M.V; Teixeira,M.F.S; Mota,R.A; Lima-Filho,J.L; Porto,T.S; Porto,A.L.F. |
| Avaliou-se a capacidade de 71 actinomicetos isolados de líquens da região amazônica em produzir inibidores de β-lactamases com atividade antimicrobiana sobre Staphylococcus aureus, resistentes à penicilina, isolados de mastite bovina do estado de Pernambuco. A seleção dos actinomicetos produtores de inibidores de β-lactamases foi realizada pela técnica de bloco de gelose contra Klebsiella pneumoniae ATCC 29665, e os actinomicetos selecionados foram testados frente a 17 linhagens de Staphylococcus aureus resistentes à penicilina. Os melhores produtores de inibidores de β-lactamases foram Streptomyces sp. DPUA 1542 e Nocardia sp. DPUA 1571, os quais foram submetidos ao cultivo submerso para determinação da curva de crescimento, pH e atividade antimicrobiana.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mastite bovina; Inibidor de β-lactamase; Actinomiceto; Atividade antimicrobiana; Staphylococcus aureus. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000600003 |
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| Chapaval,L.; Moon,D.H.; Gomes,J.E.; Duarte,F.R.; Tsai,S.M.. |
| This study describes a rapid procedure for the isolation of genomic DNA from Staphylococcus aureus that yielded a good amount of high quality DNA for the amplification of staphylococcal enterotoxins genes (A, B, C, D, and E) and the TSST-1 gene as well as enzymatic restriction (HaeIII) from environmental isolates. With this method, it was possible to detect these genes in a sample containing as little as 10(5) cells with positive PCR reactions obtained from approximately 10pg of DNA in a final reaction volume of 25µl. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; Genomic DNA; DNA isolation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000200004 |
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| Cunha, A. L. F. S.; Paiva, V. N.; Cabrini, C. C.; Vieira, P.; Pinto, M. S.. |
| Os queijos Minas artesanais possuem grande importância econômica, social, ambiental e política para o estado de Minas Gerais, sendo responsáveis pelo sustento direto e indireto de mais de 35 mil famílias. Até o presente momento não existem estudos envolvendo a utilização do fermento natural na fabricação de queijos Minas artesanais. Sabe-se apenas que o mesmo é utilizado de forma indiscriminada em algumas regiões produtoras tradicionais onde alguns produtores utilizam poucos mililitros para cada 100 litros de leite enquanto outros utilizam até um litro para os mesmos 100 litros. Além disso, segundo os produtores, as perdas de produção são atribuídas à qualidade desse fermento natural. O presente trabalho avaliou o efeito da adição de fermento natural sobre... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Segurança Alimentar; Coliformes; Escherichia coli; Staphylococcus aureus. |
| Ano: 2016 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/34810 |
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| Abolhassani,Mohsen. |
| Borage (Echium amoenum) is a large annual plant of the Boraginaceae family, which grows in most of Europe and in northern Iran. The borage flower is used as a medicinal herb in France and other countries. Iranian borage is used in traditional medicine for infectious diseases, flu and as an anti-febrile. We tested the aqueous extract of borage dried flowers in vitro for its antibacterial activity. The extract showed concentration-dependent antibacterial activity against Staphylococcus aureus 8327. This activity was heat resistant, but the activity of freeze-dried extract gradually diminished during a 90-day period. The traditional use of Iranian borage flowers for infectious diseases and for controlling fever appears to be justified. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Borago; Echium amoenum; Antibacterial activity; Staphylococcus aureus. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702004000500008 |
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| Mendes,C.; Marin,M. E.; Quiñones,F.; Sifuentes-Osornio,J.; Cuilty Siller,C.; Castanheira,M.; Zoccoli,C. M.; López,H.; Súcari,A.; Rossi,F.; Barriga Angulo,G.; Segura,A.J.A.; Starling,C.; Mimica,I.; Felmingham,D.. |
| PROTEKT (Prospective Resistant Organism Tracking and Epidemiology for the Ketolide Telithromycin) is a global surveillance study established in 1999 to monitor antibacterial resistance of respiratory tract organisms. Thirteen centers from Argentina, Brazil and Mexico participat ed during 1999-2000; they collected 1,806 isolates (Streptococcus pneumoniae 518, Haemophilus influenzae 520, Moraxella catarrhalis 140, Staphylococcus aureus 351, S. pyogenes 277). Overall, 218 (42.1%) of the S. pneumoniae isolates had reduced susceptibility to penicillin, 79 (15.3%) were penicillin-resistant and 79 (15.3%) were erythromycin-resistant. Mexico had the highest prevalence of penicillin (76.5%) and erythromycin (31.2%) resistance. Of 77 erythromycin-resistant S.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PROTEKT; Latin America; Resistance; Respiratory tract infections; Streptococcus pneumoniae; Haemophilus influenzae; Moraxella catarrhalis; Streptococcus pyogenes; Staphylococcus aureus. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702003000100006 |
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| NASCIMENTO,FERNANDA R.; ALBUQUERQUE,KAMYLLA R.S.; OLIVEIRA,MARCOS R.; PIZZIOLO,VIRGINIA R.; BRASILEIRO,BEATRIZ G.; DIAZ,GASPAR; DIAZ,MARISA A.N.. |
| ABSTRACT The dichloromethane extract of Plectranthus ornatus Codd., a tradicional medicinal plant, showed antibiotic activity with minimum inhibitory concentration (MIC) values of 0.4 mg.mL-1 and 100 percent of biofilm inhibition against Staphylococcus aureus strains isolated from animals with mastitis infections. Based on these antibacterial activities, in addition to ethnopharmacological reports from healing men and farmers in Brazil, an herbal soap was produced from this active extract and was tested both in vitro and in vivo. In vivo assays conducted on these herbal soaps led to results similar to those previously conducted with the active extract. These results indicated the great potential of this plant for use as an excipient by preparing herbal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine mastitis; Herbal soaps; Plectranthus ornatus; Staphylococcus aureus. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502461 |
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| Souza,Jeana M.E.; Chang,Marilene R.; Brito,Daniela Z.; Farias,Katyuce S.; Damasceno-Junior,Geraldo A.; Turatti,Izabel C.C.; Lopes,Norberto P.; Santos,Edson A.; Carollo,Carlos A.. |
| Abstract We evaluated the antimicrobial activity of Aspilia latissima - an abundant plant from the Brazilian Pantanal region - against Candida albicans, Candida parapsilosis, Candida krusei, Candida tropicalis, Pseudomonas aeruginosa, Enterococcus faecalis, Escherichia coli and Staphylococcus aureus. The crude extracts and fractions showed activity in all tested microorganisms. The chloroform fraction of the leaves and roots showed the most antimicrobial activity against S. aureus, with an MIC of 500 μg/mL. This fraction was submitted to bioautographic assays to characterize the activity of the compounds. Two bands from the leaves (L-A and L-B) and three bands from the roots (R-C, R-D and R-E) were bioactive. Within the root-derived bands, the terpene... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspilia latissima; Staphylococcus aureus; Bioautographic; MIC; Terpenes. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000401103 |
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| Lourenço,TC; Mendonça,EP; Nalevaiko,PC; Melo,RT; Silva,PL; Rossi,DA. |
| The aim of this study was to evaluate the efficacy of turmeric (Curcuma longa), also known in Brazil as saffron, on the reduction of Staphylococcus aureus and Escherichia coli counts in chicken meat. Forty breast meat samples were divided in two groups (A and B). In group A, 10³-10(4)E. coli (ATCC 25922) cells were inoculated and group B samples were inoculated with 10(4)-10(5)S. aureus (ATCC 9801) cells, after which each group was divided in three samples. The first sample was analyzed immediately after inoculation. The second sample (control group) was stored at 4 ºC for 48 hours and turmeric at 1% (w/w) was added to the third sample, which was homogenized and then stored under the same conditions as the second sample. E. coli and S. aureus were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Turmeric; Bacterial growth; Escherichia coli; Staphylococcus aureus. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200002 |
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| Yu,Fangyou; Liu,Yunling; Lv,Jinnan; Qi,Xiuqin; Lu,Chaohui; Ding,Yu; Li,Dan; Liu,Huanle; Wang,Liangxing. |
| ABSTRACT A better understanding of the antimicrobial susceptibility, carriage of virulence determinants and molecular characteristics of Staphylococcus aureus isolates associated with skin and soft tissue infections (SSTIs) may provide further insights related to clinical outcomes with these infections. From January 2012 to September 2013, a total of 128 non-duplicateS. aureus isolates were recovered from patients with SSTIs. All 128 S. aureus SSTI isolates carried at least five virulence genes tested. Virulence genes detected among at least 70% of all tested isolates included hld (100%), hla (95.3%),icaA (96.9%), clf (99.2%),sdrC (79.7%), sdrD (70.3%), andsdrE (72.7%). The prevalence of MRSA isolates with 10 virulence genes tested (54.4%, 31/56) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; Skin and soft tissue infections; Molecular characteristic; Virulence genes. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000600614 |
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| Adesida,Solayide A.; Abioye,Olusegun A.; Bamiro,Babajide S.; Brai,Bartholomew I.C.; Smith,Stella I.; Amisu,Kehinde O.; Ehichioya,Deborah U.; Ogunsola,Folasade T.; Coker,Akitoye O.. |
| Staphylococcus aureus infections are growing problems worldwide with important implications in hospitals. The organism is normally present in the nasal vestibule of about 35% of apparently healthy individuals and its carriage varies between different ethnic and age groups. Staphylococcal nasal carriage among health workers is particularly important to establish new clones and track origin of infections during outbreak situations. To determine the carriage rate and compare the pulsed field gel patterns of the strains, nasal swabs were collected from 185 medical students in a teaching hospital in Lagos, Nigeria. Isolates of S. aureus were tested for heamolysin production, methicillin sensitivity and Pulsed Field Gel Electrophoresis (PFGE) was performed. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Staphylococcus aureus; PFGE; Nasal isolates; Carriage rate. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000100016 |
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| Registros recuperados: 148 | |
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