Avian Pathology
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Europe: history, current situation and control measures for infectious bronchitis
The emergence and nature of different strains of infectious bronchitis virus (IBV) in Europe are described. Infectious bronchitis (IB) is the most important endemic viral respiratory disease where highly pathogenic Newcastle disease and avian influenza are not present. IB was first described in the UK in 1948 and identified as Massachusetts type. In the 1970
Revista Brasileira de Ciência Avícola. Publicado em: 2010-06
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2. Laryngotracheitis : reproducibility of the disease and comparison of diagnostic methods / Laringotraqueíte: reprodutibilidade da doença e comparação de métodos de diagnóstico
O vírus da laringotraqueíte (VLT) causa de leve a severa doença respiratório em galinhas, o propósito do nosso estudo foi usar um isolado brasileiro de VLT para reproduzir a doença em frangos através da infecção experimental e comparar três métodos de diagnóstico (nested PCR, isolamento viral e histopatologia) para detectar o VLT. Quarenta e oito
Publicado em: 2010
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3. Detecção de Ornithobacterium rhinotracheale (ORT) por meio da reação em cadeia da polimerase (PCR) / Polymerase chain reaction (PCR) detection of Ornthobacterium rhinotracheale (ORT)
Ornithobacterium rhinotracheale (ORT) é uma bactéria Gram negativa recentemente descrita que se encontra associada às doenças do trato respiratório em criações de aves comerciais e silvestres em vários países do mundo. No Brasil, foram detectados anticorpos em um pequeno número de frangos de corte e suas matrizes dos Estados de São Paulo e Minas G
Publicado em: 2010
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4. Neoplasms in domestic and wild birds kept in captivity: anatomopatologic and immunohistochemistry evaluation / Neoplasias em aves domésticas e silvestres mantidas em domicílio: avaliação anatomopatológica e imunoistoquímica
Neoplastic diseases are generally seen in some avian species, nevertheless, in Brazil, there are no reports regarding cause and classification of these diseases in birds. As keeping birds as pets is increasing, it is important to upgrade knowledge in this area. This report, made retrospectively in 2000 to 2004 and prospectively in 2005 and 2006 in the Avian
Publicado em: 2008
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5. Pathology and first report of natural infections of the eye trematode Philophthalmus lachrymosus Braun, 1902 (Digenea, Philophthalmidae) in a non-human mammalian host
The avian eye trematode Philophthalmus lachrymosus Braun, 1902 is for the first time referred naturally occurring in a non-human mammalian host. Previously, natural infections with P. lachrymosus and other species of Philophthalmus have been occasionally reported from man, with few data on experimental infections of non-human mammals. Results presented here
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-10
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6. Pathogenesis of type II avian adenovirus infection in turkeys: in vivo immune cell tropism and tissue distribution of the virus.
Hemorrhagic enteritis virus (HEV), a type II avian adenovirus, causes intestinal hemorrhages and immunosuppression in turkeys. In this study, we exposed turkeys to virulent HEV and examined fractionated spleen cells for the presence of viral DNA by in situ hybridization and amplification of DNA extracted from virus-infected cells by PCR. HEV replication was
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7. De novo purine nucleotide biosynthesis: cloning of human and avian cDNAs encoding the trifunctional glycinamide ribonucleotide synthetase-aminoimidazole ribonucleotide synthetase-glycinamide ribonucleotide transformylase by functional complementation in E. coli.
The trifunctional enzyme encoding glycinamide ribonucleotide synthetase (GARS)-aminoimidazole ribonucleotide synthetase (AIRS)-glycinamide ribonucleotide transformylase (GART) was cloned by functional complementation of an E. coli mutant using an avian liver cDNA expression library. In E. coli, genes encoding these separate activities (purD, purM, and purN,
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8. Regulation of Host Cell Transcriptional Physiology by the Avian Pneumovirus Provides Key Insights into Host-Pathogen Interactions
Infection with a viral pathogen triggers several pathways in the host cell that are crucial to eliminating infection, as well as those that are used by the virus to enhance its replication and virulence. We have here used suppression subtractive hybridization and cDNA microarray analyses to characterize the host transcriptional response in an avian pneumovir
American Society for Microbiology.
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9. Reemerging H5N1 Influenza Viruses in Hong Kong in 2002 Are Highly Pathogenic to Ducks
Waterfowl are the natural reservoir of all influenza A viruses, which are usually nonpathogenic in wild aquatic birds. However, in late 2002, outbreaks of highly pathogenic H5N1 influenza virus caused deaths among wild migratory birds and resident waterfowl, including ducks, in two Hong Kong parks. In February 2003, an avian H5N1 virus closely related to one
American Society for Microbiology.
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10. Pathology of chickens infected with avian nephoblastoma virus MAV-2(N).
A neophroblastoma-inducing myeloblastosis-associated virus, MAV-2(N), derived from avian myeloblastosis virus was characterized with respect to biochemical composition and avian pathogenesis. Purified fibroblast-grown virus contained the same size 35S ribonucleic acid and the same relative amounts of viral polypeptides as another myeloblastosis-associated vi
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11. Isolation of an avian erythrocyte protein possessing ADP-ribosyltransferase activity and capable of activating adenylate cyclase
An ADP-ribosyltransferase was purified ∼500-fold from the supernatant fraction of turkey erythrocytes. The enzyme hydrolyzed [carbonyl-14C]NAD to ADP-ribose and [carbonyl-14C]nicotinamide at a low rate. Nicotinamide formation from NAD was enhanced by arginine methyl ester > D-arginine ∼ L-arginine > guanidine; lysine, histidine, and citrulline were ineff
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12. De novo induction of a gene product during heterologous epithelial-mesenchymal interactions in vitro
Mesenchymal specification of epithelial cytodifferentiation and morphogenesis has been considered to be a general feature of various epithelial-mesenchymal interacting systems (e.g., salivary gland, mammary gland, feather, hair, and tooth morphogenesis). In contrast, we have demonstrated that a mesenchyme can be induced by a heterologous epithelium to synthe