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| Registros recuperados: 13 | |
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| Silva,Rodrigo Otávio Silveira; Oliveira Junior,Carlos Augusto; Diniz,Amanda Nádia; Alves,Guilherme Guerra; Guedes,Roberto Maurício Carvalho; Vilela,Eduardo Garcia; Lobato,Francisco Carlos Faria. |
| The objective of this study was to evaluate antimicrobial susceptibility in Clostridium difficile strains isolated from animals and humans in Brazil. The 54 C. difficile strains used were isolated from stool samples from piglets (n=16), dogs (n=13), humans (n=13), foals (n=8) calves (n=2), an ocelot (n=1) and a maned wolf (n=1). Antimicrobial susceptibility was determined using the serial plate agar dilution method for penicillin, florfenicol, oxytetracycline, erythromycin, vancomycin, metronidazole and tylosin. The C. difficile strains assessed were susceptible to metronidazole and vancomycin. Florfenicol resistance was rarely observed; 52 (96.4%) strains were sensitive to this antimicrobial. Five (9.3%), five (9.3%), 14 (25.9%) and 20 (37.0%) strains... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nosocomial diarrhea; Pseudomembranous colitis; Resistance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000500013 |
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| Silva,Rodrigo Otávio Silveira; Oliveira Junior,Carlos Augusto; Guedes,Roberto Maurício Carvalho; Lobato,Francisco Carlos Faria. |
| Clostridium perfringens is a gram-positive, anaerobic, fermentative, spore-forming bacillus that may be found in the environment but is more commonly found as part of the microbiota of humans and animals. The bacterium is considered a common enteric pathogen; however, the pathogenesis and predisposing factors of the disease can differ among species. Therefore, specific studies are necessary for understanding the role of this pathogen, how to diagnose it and which control measures are applicable. The aim of this paper is to review the current knowledge regarding C. perfringens infections in pigs, horses and broiler chickens |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diarrhea; Enteritis; Equine; Swine; Poultry. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601027 |
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| Silva,Rodrigo Otávio Silveira; Gabardo,Michelle de Paula; Oliveira,Juliana Saes Vilaça de; Lobato,Francisco Carlos Faria; Guedes,Roberto Maurício Carvalho. |
| Lawsonia intracellularisis an obligate intracellular bacterium that is responsible for proliferative enteropathy, an enteric disease endemic in swine and common in foals. However, few studies have investigated this disease in dogs, and there are no reports of dogs infected with L. intracellularisin Latin America. The aim of this study was to evaluate the fecal shedding of L. intracellularisin diarrheic and non-diarrheic dogs in Minas Gerais, Brazil. A total of 58 dogs, 18 apparently healthy and 40 diarrheic, were examined in this study. DNA extracted from feces was analyzed using a nested PCR reaction to detect L. intracellularis.Three out of 40 (7.5%) diarrheic samples, all from 3-month-old puppies, were positive for L. intracellularis. These results... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lawsonia intracellularis; Canine; Proliferative enteropathy; Diarrhea. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000901619 |
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| Carvalho,Ciro José Sousa de; Melo,Marília Martins; Michell,Ana Flávia Ribeiro Machado; Torres,Bruno Benetti Junta; Riet-Correa,Franklin; Guedes,Roberto Maurício Carvalho; Ferraz,Vany Perpetua; Soto-Blanco,Benito; Silva,Silvana Maria Medeiros de Sousa. |
| ABSTRACT: In Brazil, at least 16 poisonous plant species can affect the central nervous system of livestock. Recently in the state of Piauí, Northeastern Brazil, Brunfelsia uniflora was reported as a cause of nervous signs in donkeys, cattle, and small ruminants. In order to assess the toxicity of B. uniflora extracts, 20 Swiss mice were distributed into four groups (n=5) receiving by gavage alkaloids, flavonoids, saponins, or saline (control group). After administration of the extracts in a single dose (5g kg-1), all mice were observed daily for clinical signs. Mice that received the extracts showed moderate to severe clinical signs, including piloerection, vocalization, and seizures. All mice dosed with saponins died between 10 and 20min after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxicity; Alkaloids; Saponins; Flavonoids; Brunfelsia; Solanaceae. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100552 |
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| Macêdo,Núbia Resende de; Al-Ghamdi,Ghanem; Gebhart,Connie Jane; Guedes,Roberto Maurício Carvalho. |
| Enteropatia proliferativa (EP), causada pela Lawsonia intracellularis, tem sido descrita em eqüinos jovens. A maioria dos relatos de EP em eqüinos é proveniente da América do Norte. Não existe ainda relato desta enfermidade em eqüinos na América Latina, apesar de a distribuição mundial da enfermidade em suínos. Portanto, é bastante provável que a EP esteja sendo negligenciada no diagnóstico de diarréias em potros desmamados. Esta revisão enfoca aspectos gerais sobre a infecção, abrangendo desde a etiologia, a epidemiologia, a patogenia, os sinais clínicos, as lesões anátomo e histopatológicas, o diagnóstico e o tratamento, alertando sobre a potencial importância de L. intracellularis como possível agente causal de diarréia em potros desmamados. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enteropatia proliferativa; Eqüinos; Lawsonia intracellularis. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000300049 |
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| Silva,Rodrigo Otávio Silveira; Guedes,Roberto Maurício Carvalho; Gabardo,Michelle de Paula; Oliveira Junior,Carlos Augusto; Salvarani,Felipe Masiero; Pires,Prhiscylla Sadanã; Alves,Guilherme Guerra; Lobato,Francisco Carlos Faria. |
| O objetivo do presente trabalho foi padronizar um modelo de infecção por Clostridium difficile (ICD) em hamsters sírios (Mesocricetus auratus). Para seleção dos isolados capazes de causar letalidade, cinco animais por grupo receberam uma dose de clindamicina (30mg kg-1) por gavagem. Após 48 horas, administraram-se 107 unidades formadoras de colônia (UFC), por animal, de quatro diferentes isolados toxigênicos de C. difficile. Selecinou-se um dos isolados capazes de causar diarreia e letalidade e administrou-se 4x102; 4x104; 4x106; 4x108UFC por animal, novamente com cinco hamsters por grupo. Em todas as diluições testadas, foi possível observar a ocorrência de diarreia e morte. A maior concentração testada (4x108UFC por animal) causou óbito de 100% dos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clostridium difficile; Diarreia nosocomial; Modelo animal; Infecção hospitalar. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000801415 |
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| Registros recuperados: 13 | |
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