Resultado da pesquisa (3)
Termo utilizado na pesquisa Coutinho S.D.
#1 - Phenotypical characterization of Candida spp. isolated from crop of parrots (Amazona spp.), p.452-456
Abstract in English:
ABSTRACT.- Renata G. Vieira R.G. & Acqua Coutinho S.D. 2009. Phenotypical characterization of Candida spp. isolated from crop of parrots (Amazona spp.). Pesquisa Veterinária Brasileira 29(6):452-456. Curso de Pós-Graduação em Imunopatologia Veterinária da Universidade Paulista, Rua Agariba 48, São Paulo, SP 05053-010, Brazil. E-mail: selene@uol.com.br
The purpose of this study was to characterize Candida isolates from crop of parrots. Forty baby parrots of genus Amazona, species aestiva and amazonica that were apprehended from wild animal traffic were used: 18 presented ingluvitis and 22 other alterations, but showing general debilitation. Samples were seeded on Sabouraud dextrose agar with chloramphenicol after be obtained by the introduction of urethral probe through the esophagus. Based on morphology and biochemical reactions (API 20C) Candida was confirmed; it was still searched the production of proteinase and phospholipase, virulence factors for Candida species. Candida spp. were isolated from 57.5% parrots, being 72.2% from birds with ingluvitis and 45.5% from without ones. Twenty-five strains of Candida were isolated, 60% and 40%, respectively from parrots with and without ingluvitis, and were speciated: 28% C. humicola, 24% C. parapsilosis, 20% C. guilliermondii, 20% C. famata, and 8% C. albicans. These results demonstrate that C. albicans is not the most frequent species isolated, and it is the first report that shows C. guilliermondii, C. famata, and C. humicola causing infection in parrots. Many isolates presented filamentation (76%), 100% produced proteinase and 68% phospholipase. The observation of Candida spp. producing virulence factors reinforce the pathogenic role of these yeasts in the cases studied.
Abstract in Portuguese:
ABSTRACT.- Renata G. Vieira R.G. & Acqua Coutinho S.D. 2009. Phenotypical characterization of Candida spp. isolated from crop of parrots (Amazona spp.). Pesquisa Veterinária Brasileira 29(6):452-456. Curso de Pós-Graduação em Imunopatologia Veterinária da Universidade Paulista, Rua Agariba 48, São Paulo, SP 05053-010, Brazil. E-mail: selene@uol.com.br
The purpose of this study was to characterize Candida isolates from crop of parrots. Forty baby parrots of genus Amazona, species aestiva and amazonica that were apprehended from wild animal traffic were used: 18 presented ingluvitis and 22 other alterations, but showing general debilitation. Samples were seeded on Sabouraud dextrose agar with chloramphenicol after be obtained by the introduction of urethral probe through the esophagus. Based on morphology and biochemical reactions (API 20C) Candida was confirmed; it was still searched the production of proteinase and phospholipase, virulence factors for Candida species. Candida spp. were isolated from 57.5% parrots, being 72.2% from birds with ingluvitis and 45.5% from without ones. Twenty-five strains of Candida were isolated, 60% and 40%, respectively from parrots with and without ingluvitis, and were speciated: 28% C. humicola, 24% C. parapsilosis, 20% C. guilliermondii, 20% C. famata, and 8% C. albicans. These results demonstrate that C. albicans is not the most frequent species isolated, and it is the first report that shows C. guilliermondii, C. famata, and C. humicola causing infection in parrots. Many isolates presented filamentation (76%), 100% produced proteinase and 68% phospholipase. The observation of Candida spp. producing virulence factors reinforce the pathogenic role of these yeasts in the cases studied.
#2 - Importance of Corynebacterium bovis in bovine mastitis aetiology in the State of São Paulo, Brazil
Abstract in English:
Data on the isolation of Corynebacterium bovis from a study realized in dairy herds from 17 municipalities in the Sta te of São Paulo, Brazil, are presented and discussed. The rnicrotsrganism was isolated from 954 (32.5%) of the 2935 samples examined. The percentage of isolation in the different municipalities varied from 0.0 to 73.6. Pure cultures were obtained from 28.2% of the quarters showing clinical mastitis and from 27.5% of those with sub-clinical mastitis as detected by the Califomia Mastitis Test (CMT) and modified Whiteside test. In addition to pure cultures, C. bovis was isolated together with Staphylococcus sp., Streptococcus sp., Pseudomonas sp., Enterobacteriaceae, Actinomycetales and others from 58.3% ofthe samples, predominantely fr_om quarters with mastitis. In outbreaks of C. bovis in three dairy herds, the microtsrganism was isolated from more than 70% of the samples, 78.8% of the isolations corning from quarters with clinical or sub-clinical mastitis.
Abstract in Portuguese:
São apresentados e discutidos dados sobre o isolamento de Corynebacterium bovis no estudo realizado em propriedades de exploração leiteira, de 17 municípios do Estado de São Paulo, Brasil. Este microrganismo foi isolado de 954 das 2935 amostras examinadas (32,50%). A porcentagem de isolamento variou de 0,00% a 73,57% nos diferentes municípios. Foi obtido em cultura pura em 28,18% de quartos com mastite clínica e 27 ,45% daqueles com mastite sub-clínica (detectados pelas provas de CMT e Whiteside modificado). Além dos isolamentos em cultura pura, foi encontrado associado a outros microrganismos, como Staphylococcus sp., Streptococcus sp., Pseudomonas sp., Enterobacteriaceae, Actinomicetales e outros, em 58,27% das amostras, predominantemente de quartos com mastite. No presente trabalho são também relatados surtos por Corynebacterium bovis em três propriedades. Nestes surtos esse microrganismo foi isolado em mais de 70,00% das amostras, correspondendo 78,75% desses isolamentos a quartos com processos de mastite clínica e sub-clínica.
#3 - Sensitivity of microorganisms isolated from bovine mastitis to antibiotics and chemotherapeutic drugs
Abstract in English:
Antibiotic and chemotherapeutic drug sensitivity of 951 cultures of Staphylococcus sp., 590 cultures of Streptococcus sp. and 550 cultures of Corynebacterium sp., isolates of bovine mastites were studied. Staphylococcus sp. showed the highest levels of sensitivity (75-90%) to Cephalothin, Nitrofurantoin Vancomycin and Novobiocion: Complete resistance was seen against Phosphomycin, Polymyxin B, Colestin Sulphate and Rifamycin. In relation to Streptococcus sp., the most effective antibiotics were Chloramphenicol, Novobiocin and Vancomycin (72-77%). High levels of resistance (90-100%) were seen with Rifamycin, Streptomycin, Colestin Sulfate, Sulfomethoxazole, Phosphomycin and Polymyxin B. As for the cultures of Corynebacterium sp., the greatest sensitivity was seen with Cephalosporin (100%), followed by Erythromycin, Chloramphenicol, Gentamycin, Kanamycin, Tetracycline, Carbenicillin and Tobramycin (80-97%). None of the samples of Corynebacterium sp. studied showed complete resistance to any of the drugs tested.
Abstract in Portuguese:
Estudou-se in vitro a sensibilidade a antimicrobianos de 951 amostras de bactérias do gênero Staphylococcus, 590 amostras do gênero Streptococcus e 550 do gênero Corynebacterium, isoladas de mastites bovinas. Obtiveram-se os seguintes resultados em relação às bactérias do gênero Staphylococçus: os maiores índices de sensibilidade (75 a 90%) foram os observados frente à cefalosporina, nitrofurantoína, vancomicina e novobiocina. Observou-se 100% de resistência frente à fosfomicina, polimixina B, sulfato de colistina e rifamicina. Em relação a Streptococcus sp., os antimicrobianos mais efetivos foram cloranfenicol, novobiocina e vancomicina (sensibilidade de 72 a 77%). Altos índices de resistência (90 a 100%) foram observados frente à rifamicina, estreptomicina, sulfato de colistina, sulfametoxazol, fosfomicina e polimixina B. Quanto às amostras de Corynebacterium sp., a maior sensibilidade foi observada frente à cefalosporina (100%), seguida da eritromicina, cloranfenicol, gentamicina, canamicina, tetraciclina, carbenicilina e tobramicina (97 a 80%). Não foi observada resistência máxima (100%) aos antimicrobianos nas amostras de Corynebacterium sp. estudadas.
