Comparative experimental infection of Lacazia loboi in BALB/c and B10.A mice

Both hind foot pads of BALB/c and B10.A mice strains, were inoculated with a fungal suspension of Lacazia loboi obtained from a Jorge Lobo's disease patient. The suspension had 9 × 105 cells/ml and its viability index was 45%. The animals were sacrificed at different time periods varying from 24 h to 18 months after inoculation. The BALB/c mice developed an extensive granulomatous infiltrate, similar to the disease in humans, that progressively evolved. The number of fungal elements also increased as the disease progressed, and after the seventh month of inoculation, macroscopic changes of the foot pads were evident. Although the B10.A mice developed an exuberant granulomatous infiltrate, macroscopic changes were not detected. The number of fungal cells in the infected tissues increased in number, but they were lower then the numbers found in the BALB/c strain. The viability indexes were also lower for the B10.A strain. Considering the histopathological findings, the presence of macroscopic changes and the great amount of fungal cells in the infected tissues, the authors concluded that the BALB/c mice strain was more susceptible to L. loboi infection than the B10.A strain.

Cinqüenta anos de pensamento na CEPAL

Incluye Bibliografía

Outbreak of fungemia caused by Candida parapsilosis in a neonatal intensive care unit: Molecular investigation through microsatellite analysis

Background: Opportunistic infections are an increasingly common problem in hospitals, and the yeast Candida parapsilosis has emerged as an important nosocomial pathogen, especially in neonatal intensive care units (NICUs) where it has been responsible for outbreak cases. Risk factors for C. parapsilosis infection in neonates include prematurity, very low birth weight, prolonged hospitalization, indwelling central venous catheters, hyperalimentation, intravenous fatty emulsions and broad spectrum antibiotic therapy. Molecular methods are widely used to elucidate these hospital outbreaks, establishing genetic variations among strains of yeast. Aims: The aim of this study was to detect an outbreak of C. parapsilosis in an NICU at the Hospital das Clinicas , Faculty of Medicine of Botucatu, a tertiary hospital located in São Paulo, Brazil, using the molecular genotyping by the microsatellite markers analysis. Methods: A total of 11 cases of fungemia caused by C. parapsilosis were identified during a period of 43 days in the NICU. To confirm the outbreak all strains were molecularly typed using the technique of microsatellites. Results: Out of the 11 yeast samples studied, nine showed the same genotypic profile using the technique of microsatellites. Conclusions: Our study shows that the technique of microsatellites can be useful for these purposes. In conclusion, we detected the presence of an outbreak of C. parapsilosis in the NICU of the hospital analyzed, emphasizing the importance of using molecular tools, for the early detection of hospital outbreaks, and for the introduction of effective preventive measures, especially in NICUs. © 2012 Revista Iberoamericana de Micología.

Estratégias de relativização e classe de palavra: um estudo tipológico-funcional

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Acessibilidade semântica nas construções relativas em línguas indígenas brasileiras: um estudo tipológico-funcional

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ocorrência do diabetes mellitus tipo 2 em Presidente Pudente-SP

Pós-graduação em Biociências e Biotecnologia Aplicadas à Farmácia - FCFAR

Um estudo acerca dos estados mentais: o debate internalismo versus externalismo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito da bidestilação na qualidade sensorial da cachaça

Pós-graduação em Alimentos e Nutrição - FCFAR

Compostos voláteis da uvaia (Eugenia pyriformis cambess)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O emprego da metodologia de superfície de resposta no desenvolvimento de um novo produto simbiótico, fermentado com Enterococcus faecium CRL 183 e Lactobacillus helveticus ssp jugurti 416, à base de extratos aquosos de soja e de Yacon (Smallanthus sonchifolius)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito do processamento industrial para obtenção de goiabada sobre os compostos antioxidantes e cor

Pós-graduação em Alimentos e Nutrição - FCFAR

Glicerol quinase de levedura de panificação

Pós-graduação em Alimentos e Nutrição - FCFAR

Seleção de um suporte sintético para imobilizar células do Botryospaheria rhodina e comparação da produção de lacase por células livres e imobilizadas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Duas formas da recepção das idéias de Lukács no Brasil: estética e ontologia

Pós-graduação em Ciências Sociais - FFC

Acúmulo de saberes e experiência formativa

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)