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Registros recuperados: 14
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Neurological and epidemiological aspects of a BoHV-5 meningoencephalitis outbreak BABT
Lunardi,Michele; Claus,Marlise Pompeo; Lisbôa,Júlio Augusto Naylor; Amude,Alexandre Mendes; Headley,Selwyn Arlington; Alfieri,Alice Fernandes; Alfieri,Amauri Alcindo.
Bovine herpesvirus 5 is a DNA virus that has been associated with meningoencephalitis in young cattle. While its clinical diagnosis is obscured by other major diseases that also produce similar neurological disease in cattle, the use of conventional virological techniques is hampered by the establishment of a lifelong latent infection in the host and the difficulty in differentiating BoHV-1 and BoHV-5. The aim of the current report is to describe the clinical and epidemiological aspects observed in a natural outbreak of BoHV-5 meningoencephalitis in a dairy cattle herd from Brazil. In the outbreak, the affected animals consisted of nine calves, which presented three possible forms of the neurological disease, subjectively classified as peracute, acute, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Central nervous system; Bovine herpesvirus 5; Multiplex-PCR.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700011
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Histopathological and molecular characterization of encephalitic listeriosis in small ruminants from northern Paraná, Brazil BJM
Headley,Selwyn Arlington; Bodnar,Lívia; Fritzen,Juliana T.T.; Bronkhorst,Dalton Evert; Alfieri,Alice Fernandes; Okano,Werner; Alfieri,Amauri Alcindo.
Listeriosis is a disease primarily of ruminants caused by the Gram-positive bacterium Listeria monocytogenes. Ruminants either demonstrate manifestations of the encephalitic, septicemic, or reproductive form of listeriosis. The pathological and molecular findings with encephalitic listeriosis in a 5.5-month-old, male, mixed-breed goat and a 3-year-old Texel-crossed sheep from northern Paraná, Brazil are described. Clinically, the kid demonstrated circling, lateral protrusion of the tongue, head tilt, and convulsions; the ewe presented ataxia, motor incoordination, and lateral decumbency. Brainstem dysfunctions were diagnosed clinically and listeriosis was suspected. Necropsy performed on both animals did not reveal remarkable gross lesions; significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brainstem dysfunctions; Rhombencephalitis; Neuropathology; Listeriolysin gene; Epidemiology; Listeria monocytogenes.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000300036
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Simultaneous canine distemper encephalitis and canine parvovirus infection with distemper-associated cardiac necrosis in a pup Ciência Rural
Headley,Selwyn Arlington; Saito,Taís Berelli.
Simultaneous infection of canine distemper virus and canine parvovirus associated with distemper myocardial degeneration and necrosis is described in a pup. The dog demonstrated myoclonus, nystagmus, enamel hypoplasia, abdominal pustules, and bilateral corneal ulceration clinically. Demyelinating encephalitis, myocardial degeneration and necrosis with mineralization, and necrosis, hemorrhage and fusion of intestinal villi were observed. The lesions observed in this dog are characteristic of a dual infection of canine distemper virus and canine parvovirus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canine distemper virus; Canine parvovirus; Encephalitis; Cardiac necrosis.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000600023
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Use of metaphylactic protocols based on the risk to develop bovine respiratory diseases in feedlot cattle Ciência Rural
Magalhães,Layane Queiroz; Baptista,Anderson Lopes; Fonseca,Pedro de Almeida; Menezes,Guilherme Lobato; Nogueira,Geison Morel; Headley,Selwyn Arlington; Fritzen,Juliana Torres Tomazi; Alfieri,Amauri Alcindo; Saut,João Paulo Elsen.
ABSTRACT: Bovine respiratory diseases (BRD) affect production rates negatively because it compromise health and well-being of the affected animal. The hypothesis of this study was that the use of metaphylactic protocols based on the risk to develop BRD would reduce morbidity and pulmonary lesions. For this purpose, the aims of this study were to evaluate the effect of two metaphylactic protocols on the morbidity of feedlot cattle with a known sanitary history, occurrence of pulmonary lesions at slaughter, and the possible participation of Mannheimia haemolytica, Histophilus somni, Bovine alphaherpesvirus 1 (BoHV-1) and bovine respiratory syncytial virus (BRSV) in the development of BRD. An experimental study was designed in which 3,094 adult, male, cattle,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histophilus somni; Mannheimia haemolytica; Pulmonary lesions.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800454
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Intoxicação experimental por sementes de Crotalaria spectabilis (Leguminosae) em suínos Ciência Rural
Torres,Márcia Bersane Araújo de Medeiros; Salles,Mônica Weissmann Seabra; Headley,Selwyn Arlington; Barros,Claudio Severo Lombardo de.
Para estudar os efeitos da ingestão de sementes de Crotalaria spectabilis em suínos, 14 porcos foram divididos em 5 grupos; quatro (A-D) eram formados por 3 porcos e um (Grupo E) por dois porcos. Com exceção do grupo A, que serviu como controle, os porcos foram alimentados com ração contendo 0,3 e 0,5% (Grupos B e C) e 1% (Grupos D e E) de sementes moídas de C. spectabilis por 32 (Grupo D), 44 (Grupo E) e 120 (Grupo B e C) dias. Um suíno do Grupo D e 2 suínos do Grupo B, morreram 8, 70 e 137 dias após o início do experimento; os restantes 11 suínos foram sacrificados em períodos que variaram entre 52 e 159 dias após o início do experimento. Dez dos 11 suínos tratados apresentaram perda do apetite e subdesenvolvimento. Outros sinais clínicos observados...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plantas tóxicas; Crotalaria spectabilis; Leguminosae; Doenças de suínos; Alcalóides pirrolizidínicos.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000200023
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Leishmaniose visceral (Calazar): cinco casos em cães de Santa Maria, Rio Grande do Sul, Brasil Ciência Rural
Pocai,Emersson Augusto; Frozza,Luciano; Headley,Selwyn Arlington; Graça,Dominguita Lühers.
Leishmaniose visceral foi diagnosticada no exame pós-morte de cinco cães da região de Santa Maria, RS. Todos os animais mostraram sinais de doença crônica com icterícia, anorexia, vômito, febre intermitente e emaciaçâo. Os achados macroscópicos à necropsia foram de gastrenterite hemorrágica, pneumonia intersticial e esplenomegalia. Histologicamente foram detectadas formas livres e intracelulares de Leishmania spp em macrófagos e células endoteliais em todos os tecidos investigados. Estudos epidemiológicos, realizados na região onde a maioria dos casos ocorreu, foram negativos para a detecção do agente e do vetor biológico.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmaniose visceral; Cães; Leishmania spp; Calazar.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781998000300025
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Seroepidemiology ofLeishmaniaspp. in equids from Uberlândia, Minas Gerais, Brazil Ciência Rural
Oliveira,Patrícia Magalhães de; Garcia,Felipe; Evers,Fernanda; Barbosa,Vinícius de Morais; Obando,Diego Camilo Mora; Nasciutti,Nayara Resende; Garcia,João Luis; Nogueira,Geison Morel; Headley,Selwyn Arlington; Saut,João Paulo Elsen.
ABSTRACT: This study evaluated the occurrence of Leishmania spp. in equids from Uberlândia, Minas Gerais, Southeastern Brazil. Serum samples from 257 healthy equids of Uberlândia were assessed for the presence of antibodies against Leishmania spp. by using the indirect fluorescent-antibody test. Additionally, an epidemiological survey was done to evaluate the possible risk factors (species of equids, age, gender, economic activity, and contact with domestic and wild animals) associated with the presence of antibodies against Leishmania spp. The total seroprevalence against Leishmania spp. was 24.1% (62/257); representing seroprevalence levels of 22.7% (55/242) in horses, 50% (4/8) in mules, and 42.9% (3/7) in ponies from all regions evaluated. The species...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Equids; Serology; Epidemiology..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000500501
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AGENTES INFECCIOSOS ISOLADOS DE Chinchilla laniger Ciência Rural
Lazzari,Andrea Maria; Vargas,Agueda Castagna de; Dutra,Valéria; Graça,Dominguita Lühers; Headley,Selwyn Arlington; Costa,Mateus Matiuzzi da.
Este relato descreve a infecção por Pseudomonas aeruginosa e surtos ocasionados por Bordetella bronchiseptica em chinchilas pertencentes a criatórios da região de Santa Maria, RS, Brasil. Os animais afetados apresentavam apatia, anorexia e dificuldade respiratória, acompanhada de secreção nasal mucopurulenta. O isolamento de Pseudomonas aeruginosa foi realizado pela cultura de amostra de tecido pulmonar, enquanto a Bordetella bronchiseptica foi isolada de pulmão, fígado e swab de secreção traqueal. São relatados e discutidos os dados clínicos e achados patológicos, assim como o isolamento e identificação desses agentes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chinchilla laniger; Bordetella bronchiseptica; Pseudomonas aeruginosa; Roedores.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782001000200025
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Canine distemper virus infection with secondary Bordetella bronchiseptica pneumonia in dogs Ciência Rural
Headley,Selwyn Arlington; Graça,Dominguita Lühers; Costa,Mateus Matiuzzi da; Vargas,Agueda Castagna de.
Canine distemper virus infection and secondary Bordetella bronchiseptica pneumonia are described in mongrel dogs. Canine distemper was characterised by nonsuppurative demyelinating encephalitis with typical inclusion bodies in astrocytes. B. bronchiseptica was isolated from areas of purulent bronchopneumonia.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dogs; Canine distemper virus; Bordetella bronchiseptica; Nonsuppurative demyelinating encephalitis.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781999000400030
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Equine cutaneous pythiosis: a report of four cases Ciência Rural
Headley,Selwyn Arlington; Arruda Junior,Homero Neves.
Cutaneous pythiosis is described in four horses in Northern Paraná, Brazil. All animals presented ulcerative, granulomatous, cutaneous lesions that did not invade adjacent muscular tissues. Histopathological evaluations revealed eosinophilic granulomatous reactions associated with intralesional hyphae suggestive of Pythium insidiosum observed at the margins of coagula. P. insidiosum hyphae were visualized by Gomori’s methenamine silver stain.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Pythiosis; Pythium insidiosum; Horses.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000100047
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Canine hypertrophic osteopathy associated with extra-thoracic lesions Ciência Rural
Headley,Selwyn Arlington; Ribeiro,Eduardo Alcântara; Santos,Gustavo José Von G. dos; Bettini,Carlos Maia; Mattos Júnior,Ewaldo.
Canine hypertrophic osteopathy is described in a dog that presented extra-thoracic lesions, mainly in the liver. Hepatic lesions were characterized by necrosis, hemorrhage, severe hydropic degeneration of centrolobular hepatocytes, proliferation of epithelial cells of bile ducts, and mild biliary stasis. The disease syndrome was diagnosed based on clinical signs, radiological evaluation, and inspection of macerated bones.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hypertrophic osteopathy; Dog; Pathology; Radiology; Liver.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782005000400033
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Bartholin’s gland adenoma in a Saanen goat Ciência Rural
Moreira,Jessica Regina; Oliveira,Thalita Evani Silva de; Tongu,Eriky Akio de Oliveira; Leite,Raissa Oliveira; Nogueira,Geison Morel; Michelazzo,Mariana de Mello Zanim; Delfiol,Diego José Zanzarini; Saut,João Paulo Elsen; Headley,Selwyn Arlington.
ABSTRACT: Tumors affecting Bartholin’s gland are considered rare in human medicine; there are few reports in the veterinary literature, with descriptions occurring only in cows. This article described the clinical and pathological findings associated with Bartholin’s gland adenoma in a goat. Clinically, a 7-year-old pregnant Saanen goat presented bilateral enlargement of the vulva that did not regress spontaneously after parturition. Grossly, these vulvar masses were multilobulated, contained cystic areas from which oozed a whitish fluid. Histopathology revealed an adenoma characterized by the proliferation of irregularly shaped neoplastic epithelial cells that formed tubular to glandular-like structures. These neoplastic cells demonstrated moderate...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histopathology; Ki-67 protein; Adenoma; Major vestibular glands.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100501
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Aortic body tumors in dogs from Northern Paraná, Brazil Ciência Rural
Headley,Selwyn Arlington; Bracarense,Ana Paula; Nakagawa,Tizianne; Moreno,Kleber; Pereira,Patrícia Mendes; Reis,Antônio Carlos Faria dos.
This article describes the occurrence of aortic body tumors in four dogs from Southern Brazil. All dogs were males, more than 9 year of age; most of these were from the Boxer breed of dogs. The animals had large neoplastic growths at the base of the heart, which demonstrated histologic characteristics consistent with that of aortic body tumor. By immunohistochemistry, tissue sections from all dogs reacted positively to neuron specific enolase. These cases might represent the first description of this tumor in dogs from Brazil, as confirmed by immunohistochemistry.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Heart; Aortic body tumor; Immunohistochemistry; Neuron specific enolase.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000600045
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Vaginal leiomyosarcoma in a cow from Uberlândia, Minas Gerais, Brazil Ciência Rural
Saut,João Paulo Elsen; Oliveira,Patrícia Magalhães de; Nasciutti,Nayara Resende; Medeiros,Alessandra Aparecida; Magalhães,Geórgia Modé; Tsuruta,Suzana Akemi; Hanna,Paul; Headley,Selwyn Arlington.
The clinical, pathological, and immunohistochemical findings associated with a vaginal leiomyosarcoma in a 12-year-old, Senepol breed of cow from Uberlândia, Minas Gerais are described. The animal had a large ulcerative neoplastic growth that originated between the base and the left-lateral vaginal wall. Histopathology revealed a tumor formed by muscle-like cells that demonstrated cellular pleomorphism, anisokaryosis, prominent and multiple nucleoli, with rare tumor giant cells. The neoplastic growth invaded adjacent adipose tissue, and contained areas of hemorrhage with discrete accumulations of inflammatory cells. By immunohistochemistry, most neoplastic cells expressed actin, while immunoreactivity to desmin was weakly expressed. These findings support...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bovine diseases; Immunohistochemistry; Reproductive pathology; Smooth muscle tumor.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000500024
Registros recuperados: 14
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