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Comparison between ultrasound images of the dog brain with and without the calvaria and its correlation with real anatomy | Comparação entre imagens ultrassonográficas do cérebro do cão com e sem a calota craniana e sua correlação com a anatomia real Полный текст
2013
Carla Aparecida Batista Lorigados | Ana Carolina Brandão Fonseca Pinto
<p>Bones are believed to be an effective barrier to obtain sonographic images. In fact, the large difference between acoustic impedances of surfaces of the soft and bone tissues generates significant image artifacts. However, transmission of the ultrasound beam depends on bone thickness and structure. Therefore, the temporal bone has been used as an acoustic window to access the brain of adult patients with ultrasonography. The purpose of this study was to assess the brain of adult dogs using ultrasonography with and without bone interposition, compare the images, and correlate them with the brain anatomy. Ten mesaticephalic adult dogs were used, and the ultrasound examination was performed through the magnum orifice and on the temporal, lateral parietal, and frontal bones. A small craniotomy was performed in the frontal bone for examination without bone interposition. We were able to acquire images of the brain with bone interposition. However, resolution of these images was lower than the ones obtained by craniotomy. Important anatomical structures were identified. Regarding the correlation and the wide availability of ultrasound equipment, it was concluded that ultrasound can be used as a tool for monitoring expansive intracranial lesions or in intraoperative procedures.</p> | <!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><span style="font-size: 11.0pt; line-height: 115%; font-family: 'Calibri','sans-serif'; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: Calibri; mso-fareast-theme-font: minor-latin; mso-hansi-theme-font: minor-latin; mso-bidi-font-family: 'Times New Roman'; mso-bidi-theme-font: minor-bidi; mso-ansi-language: PT-BR; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Os ossos são tidos como uma barreira intransponível para obtenção de imagens sonográficas, pois a grande diferença entre as impedâncias acústicas das superfícies de tecidos moles e ósseos gera importantes artefatos de reflexão, contudo, a transmissão do feixe ultrassônico depende da espessura e da estrutura óssea e neste caso o osso temporal tem sido usado como uma janela acústica para o acesso, por ultrassonografia, do encéfalo de pacientes adultos. O presente trabalho examinou o encéfalo de cães adultos com o emprego da ultrassonografia com e sem a interposição do crânio, comparou as imagens obtidas e as correlacionou com a anatomia encefálica. Foram examinados dez cães adultos, mesaticefálicos. O exame ultrassonográfico foi realizado através do orifício magno e dos ossos temporal, parietal (porção lateral) e frontal. No exame sem a interposição óssea foi realizada uma pequena craniotomia no osso frontal. As imagens do encéfalo com a interposição óssea apresentaram resolução inferior às obtidas por craniotomia. Importantes estruturas anatômicas foram identificadas. Devido à correlação e a sua ampla disponibilidade, concluiu-se que o aparelho de ultrassom pode ser usado para o acompanhamento de lesões intracranianas expansivas, bem como em procedimentos intraoperatórios.</span><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF/> <w:LidThemeOther>PT-BR</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:EnableOpenTypeKerning/> <w:DontFlipMirrorIndents/> <w:OverrideTableStyleHps/> 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Показать больше [+] Меньше [-]Clinical and epidemiological characterization of leishmaniasis in dogs in São Paulo State | Caracterização clínica e epidemiológica das leishmanioses em cães no Estado de São Paulo Полный текст
2013
Cauê Pereira Toscano | Claudio Nazaretian Rossi | Vítor Márcio Ribeiro | Marcia Dalastra Laurenti | Carlos Eduardo Larsson
<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><p class="MsoNormal"><span style="mso-ansi-language: EN-US;" lang="EN-US">The occurrence of visceral or cutaneous canine leishmaniasis cases among dermatophatic dogs admitted to the veterinary teaching hospital School of Veterinary Medicine and Animal Husbandry - University of São Paulo from 1997 to 2008 was retrospectively characterized. For the diagnosis of 427 animals, serological (Enzyme-Linked Immunosorbent Assay, Indirect Immunofluorescence and/or Complement Fixation), parasitological and molecular (Polymerase Chain Reaction) tests were performed, which resulted in 117 (27.4%) confirmed positive cases. Of these, 96 (82.1%) were pure breed dogs and the others 21 (17.9%) were cross breed, being 57 (48.7%) females and 60 (51.3%) males. In terms of age, 26 (22.2%) were younger than 36 months, 48 (41%) were between 36 and 84 months, and 43 (36.8%) were older than seven years old. Sixty-four (54.7%) dogs were considered oligosymptomatic, 44 (37.6%) symptomatic, and the remaining nine (7.7%) asymptomatic. The main clinical findings were, in descending order, dermal lesions, lymphadenopathy, anemia, dysorexia, prostration and splenomegaly. As for hematological disorders, relative and absolute lymphopenia was the most important findings. Ninety-six (82.1%) of the positive animals correspond to allochthonus cases from São Paulo municipality.</span></p> | <!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><p class="MsoNormal">Caracterizou-se retrospectivamente, a partir do ano de 1997 até março de 2008, a ocorrência de casos de leishmaniose, visceral ou tegumentar, dentre os cães dermatopatas atendidos em serviço especializado de hospital-escola veterinário de Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo. Para o diagnóstico em 427 animais, foram utilizados testes sorológicos (Ensaio Imunoenzimático Indireto, Imunofluorescência Indireta e/ou Fixação de Complemento), parasitológicos diretos e moleculares (Reação em Cadeia da Polimerase), que resultaram na confirmação de 117 (27,4%) casos positivos. Da amostragem, 96 (82,1%) eram cães de raça definida, os demais 21 (17,9%) não dispunham de plena definição racial, sendo 57 (48,7%) fêmeas e 60 (51,3%) machos. Quanto à faixa etária, 26 (22,2%) apresentavam idade inferior a 36 meses, 48 (41%) entre 36 e 84 meses e 43 (36,8%) ultrapassavam o sétimo ano de vida. Considerou-se 64 (54,7%) cães como oligossintomáticos, 44 (37,6%) sintomáticos e os nove (7,7%) remanescentes como assintomáticos. As principais alterações clínicas observadas foram, em ordem decrescente, lesões tegumentares, linfonodomegalia, anemia, disorexia, prostração e esplenomegalia. Quanto às alterações hematológicas, a mais importante foi a linfopenia relativa e absoluta. 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Показать больше [+] Меньше [-]Faillure in the effect of the analogue (hCG) of luteinizing hormone on the luteal angiogenesis in rats (Rattus novergicus) | Ausência de efeito do análogo (hCG) do hormônio luteinizante na angiogênese luteal em ratas (Rattus novergicus) Полный текст
2013
Diego Gonçalves Silva | Diego Marcondes Guerra | Vinicius José Moreira Nogueira | Mariana Andrade Torres | Diego Feitosa Leal | Carlos Henrique Cabral Viana | Caroline Martins
<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><p class="MsoNormal"><span style="mso-ansi-language: EN-US;" lang="EN-US">The knowledge of the mechanisms that affect the control of the ovarian activity is essential for the success of reproduction biotechnologies. Although a number of studies have been carried out in which the luteinizing hormone (LH) was used to control the ovarian activity, little is known about its influence in the morphology and vascular formation of the corpus luteum, aiming to increase the local blood flow. Thus, the objective of the present experiment was the quantification of the vascular density of corpora lutea (Cls) in animals treated with human chorionic gonadotropin (hCG) just after ovulation. Therefore, eighteen wistar rats were used in this experiment. Eight rats in the treated group and ten rats in the control group. Corpora lutea were divided into two groups: group (A) treated with hCG in the following morning after copulation, and group (B) control animals which received an injection of 0.9% sodium chloride solution. Ovaries from each group were used for preparation of histological sections for vascular density qualification. No statistical significance was found between the two groups tested.</span></p><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF/> <w:LidThemeOther>PT-BR</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:EnableOpenTypeKerning/> <w:DontFlipMirrorIndents/> <w:OverrideTableStyleHps/> </w:Compatibility> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac 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line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-fareast-language:EN-US;} </style> <![endif]--> | <!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><p class="MsoNormal">A compreensão dos mecanismos de controle da atividade ovariana é necessária para o sucesso das biotecnologias da reprodução. Embora existam inúmeros trabalhos a respeito da aplicação do hormônio luteinizante (LH) na função ovariana, pouco se sabe sobre a sua influência na morfologia e formação da vasculatura do corpo lúteo (CL). Diante disto, o presente projeto teve como objetivo a quantificação da densidade vascular dos CLs de animais tratados com Gonadotrofina Corionica Humana (hCG) após a ovulação. Para tanto, foram utilizados ratas wistar, cujos CLs foram divididos em dois grupos: (A) tratado com hCG na manhã seguinte a cópula e (B) controle (solução fisiológica a 0,9 % de NaCl). Foram confeccionadas lâminas dos ovários dos animais para a quantificação da densidade vascular. 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Показать больше [+] Меньше [-]Manifestações clínicas da cetose nervosa induzida por isopropanol em ovinos Полный текст
2013
Carolina Akiko Sato Cabral Araújo | Frederico Augusto Mazzocca Lopes Rodrigues | Antonio Humberto Hamad Minervino | Braulio Frateschi Trivelatto | Leonardo Frasson dos Reis | Clara Satsuki Mori | Enrico Lippi Ortolani
Doze ovelhas hígidas, não prenhes e não lactentes foram submetidas a um protocolo de indução experimental de cetose nervosa para a avaliação de sintomatologia nos quadros de cetose e Toxemia da Prenhez. Neste protocolo, oito animais foram submetidos a infusão de 150 mL de solução de isopropanol a 35% na veia jugular, constituindo o grupo Tratado (GT), e quatro ovinos foram tratados identicamente com solução salina isotônica (NaCl 0,9%), constituindo o grupo Controle (GC) no decorrer de 40 minutos. Os animais do GT apresentaram aumento da frequência cardíaca (FC) aos 40 minutos de infusão e redução no movimento ruminal a partir dos 10 minutos de infusão com isopropanol, o qual permaneceu diminuído ate 10 minutos do termino da infusão. A atonia ruminal ocorreu em três animais, que manifestaram em seguida leve meteorismo gasoso. A infusão de isopropanol provocou o surgimento de sintomas nervosos como, depressão e sonolência, cambaleios, adução de membros posteriores, pressão da cabeça em obstáculo, ranger de dentes e cegueira quase sempre acompanhada de diminuição do reflexo pupilar e nistagmo. Todos os animais exalaram forte odor cetótico com poucos minutos do inicio da indução, fato que ajudou a eliminação do isopropanol do organismo. Os presentes resultados sugerem que parte dos sintomas nervosos verificados na Toxemia da Prenhez possa ser oriunda da ação do isopropanol. Estes resultados abrem novas perspectivas para o melhor entendimento da patogenia da Toxemia da Prenhez em ovinos.
Показать больше [+] Меньше [-]Proteinograma sérico de bezerros recém-nascidos alimentados com colostro de vacas com mastite Полный текст
2013
Guilherme Gonçalves Fabretti Santos | Maurício Deschk | André Kielius Guedes Silva | Tatiane Silva Pólo | Márcia Marinho | Juliana Regina Peiró | Luiz Cláudio Nogueira Mendes | Francisco Leydson Formiga Feitosa
O objetivo do presente estudo foi o de avaliar o proteinograma sérico de bezerros alimentados com colostro oriundo de vacas sadias (n = 10), com mastite assintomática (n = 10 ) e mastite clínica (n =10 ). As vacas foram alocadas em seus respectivos grupos de acordo com o exame macroscópico da secreção colostral, contagem de células somáticas, CMT e isolamento microbiano. As amostras de sangue dos conceptos foram colhidas logo após o nascimento, 24 e 48 horas após a ingestão do colostro dos quartos infectados e dos sadios. Foi avaliada a concentração de proteína total pelo método do biureto e as concentrações de imunoglobulina A (IgA), imunoglobulina G (IgG), transferrina, albumina e haptoglobina por meio da eletrofoerese em gel de poliacrilamida contendo dodecil sulfato de sódio (SDS-PAGE). Não foram observadas diferenças entre os grupos nas concentrações de albumina, proteína total e IgA. Os bezerros alimentados com colostro de vacas com mastite assintomática e clínica apresentaram teores de haptoglobina superiores aos animais sadios. As concentrações de IgG e transferrina foram significativamente inferiores nos bezerros tratados com colostro de vacas com mastite clínica. Concluiu-se que a ingestão de colostro de quartos sadios e infectados de vacas que pariram com mastite (GII e GIII) não resulta em falha de transferência da imunidade passiva.
Показать больше [+] Меньше [-]Comparação entre imagens ultrassonográficas do cérebro do cão com e sem a calota craniana e sua correlação com a anatomia real Полный текст
2013
Carla Aparecida Batista Lorigados | Ana Carolina Brandão Fonseca Pinto
Os ossos são tidos como uma barreira intransponível para obtenção de imagens sonográficas, pois a grande diferença entre as impedâncias acústicas das superfícies de tecidos moles e ósseos gera importantes artefatos de reflexão, contudo, a transmissão do feixe ultrassônico depende da espessura e da estrutura óssea e neste caso o osso temporal tem sido usado como uma janela acústica para o acesso, por ultrassonografia, do encéfalo de pacientes adultos. O presente trabalho examinou o encéfalo de cães adultos com o emprego da ultrassonografia com e sem a interposição do crânio, comparou as imagens obtidas e as correlacionou com a anatomia encefálica. Foram examinados dez cães adultos, mesaticefálicos. O exame ultrassonográfico foi realizado através do orifício magno e dos ossos temporal, parietal (porção lateral) e frontal. No exame sem a interposição óssea foi realizada uma pequena craniotomia no osso frontal. As imagens do encéfalo com a interposição óssea apresentaram resolução inferior às obtidas por craniotomia. Importantes estruturas anatômicas foram identificadas. Devido à correlação e a sua ampla disponibilidade, concluiu-se que o aparelho de ultrassom pode ser usado para o acompanhamento de lesões intracranianas expansivas, bem como em procedimentos intraoperatórios.
Показать больше [+] Меньше [-]Estudo retrospectivo das afecções locomotoras em ruminantes atendidos na Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo entre 2000 e 2012 Полный текст
2013
Ronaldo Gomes Gargano | Fernando José Benesi | Eduardo Harry Birgel Junior | Alice Maria Melville Paiva Della Libera | Lilian Gregory | Maria Claudia Araripe Sucupira | Enrico Lippi Ortolani | Viviani Gomes | Fabio Celidonio Pogliani
Foi realizado o estudo retrospectivo das afecções do sistema locomotor de ruminantes atendidos no Serviço de Clínica de Bovinos e Pequenos Ruminantes da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP), no período de 2000 a 2012. Nesse período, foram atendidos 209 casos de animais com problemas locomotores, dos quais 62,7% localizados na região distal dos membros e 37,3% na região proximal. Na espécie bovina, com 121 (57,9%) casos atendidos, o comprometimento da região distal dos membros foi observado em 86 (71,07%) e da região proximal em 35 (28,93%) dos casos, respectivamente. A afecção mais frequente observada em bovinos foi a hiperplasia interdigital com 26,74% (23) dos casos atendidos. Entre as afecções na região proximal, houve maior ocorrência de fraturas, com 48,6% (17) dos casos. Foram atendidos 88 (42,1%) pequenos ruminantes, apresentando lesões na região distal em 51,1% (45) dos casos e 48,9% (43) com lesões na região proximal. Nessas espécies, as lesões de maior ocorrência nas regiões distais e proximais foram, respectivamente, o foot-rot (60%) e as fraturas (77,4%). As afecções do sistema locomotor dos ruminantes foram pouco frequentes entre os animais atendidos no período estudado. Quanto ao prognóstico, foi bom nos animais acometidos com doenças podais, diferentemente das afecções proximais dos bovinos, principalmente fraturas, que apresentaram prognóstico mau.
Показать больше [+] Меньше [-]Isolation of Leptospira borgpetersenii in synanthropic Didelphis albiventris in Jaboticabal, São Paulo, Brazil Полный текст
2013
Felipe Jorge da Silva | Talita Ribeiro Silva | Glaucenyra Cecília Pinheiro Silva | Carlos Eduardo Pereira dos Santos | José Roberto Ferreira Alves Júnior | Luis Antonio Mathias
Leptospirosis is a waterborne disease and, therefore, stands out for the possibility of environmental contamination, the cross transmission between domestic and wild animals and humans. Opossum species are important reservoirs of this disease making them potential pathogen spreaders. Aiming to verify the presence of Leptospira spp. and the antibodies against Leptospira spp. in the Campus of São Paulo State University, in Jaboticabal, São Paulo, Brazil, freeliving wild life opossum (Didelphis albiventris) were captured for blood and urine sampling. Serological analysis was performed Microscopic Agglutination Test (MAT). Aliquots of urine were seeded in media Ellinghausen-McCullough- Johnson-Harris (EMJH) and Fletcher without antibiotics. The samples in which there was growth of leptospires were forwarded to the Leptospirosis Laboratory of the Institute of Pathobiology in the National Institute of Agricultural Technology, Buenos Aires, Argentina and were genotyped using Multiple Locus Variable number tandem repeat Analysis (MLVA). Of the 15 analyzed animals, nine (60.0%) were reactant to Patoc serovar. The pathogenic specie Leptospira borgpetersenii was isolated and identified in three Didelphis albiventris. The isolation findings of pathogenic specie Leptopsira borgpetersenii in the urine culture of three Didelphis albiventris in a university campus are a major discovery in the area of preventive veterinary medicine and public health and open a discussion about the important role of free-living wild animals as reservoirs of this agent to domestic animals and humans, a condition that serves as a warning for the improvement of health practices.
Показать больше [+] Меньше [-]Padrões morfológicos e critérios de malignidade do tumor venéreo transmissível aos exames citopatológico e histopatológico Полный текст
2013
Caroline Rocha de Oliveira Lima | Rogério Elias Rabelo | Valcinir Aloisio Scalla Vulcani | Adriana Pereira Furtado | Panmera Almeida Helrigel | Luiz Augusto Batista Brito | Veridiana Maria Brianezi Dignani de Moura
Este estudo teve por objetivo identificar os padrões morfológicos e os critérios de malignidade do TVT aos exames citológico e histopatológico e relacionar essas características à evolução clínica e à resposta à quimioterapia. Dos animais estudados, dezesseis cães eram fêmeas e quatro machos. A idade dos animais variou entre um e dez anos de idade. Quanto à raça, 80% dos cães eram sem raça definida e 20% de outras raças. Constatou-se que as amostras citológicas permitiram melhor caracterização do tipo celular do que as histológicas. O TVT tipo plasmocitoide foi o de maior ocorrência, seguido pelos padrões linfocitoide e misto. Não houve diferença entre os escores estabelecidos para os critérios de malignidade e os tipos do TVT. Nenhum tipo morfológico do TVT diferiu quanto à resposta quimioterápica, mas o TVT apresenta particularidades morfológicas que podem interferir no comportamento tumoral, especialmente aquelas relacionadas à maior agressividade, e que são observadas no TVT plasmocitoide.
Показать больше [+] Меньше [-]Vírus da cinomose canina: detecção do RNA viral pelo Nested RT-PCR em cães com diagnóstico clínico Полный текст
2013
Rosana Alcalde | Marcia Mery Kogika | Vera A. Batistini Fortunato | Luciano Rodrigo Lopes | Paulo Bandeira Paiva | Edison Luiz Durigon
O vírus da cinomose canina (CDV) é um patógeno que afeta cães, causando doença grave e que pode levar a morte. Os cães infectados pelo CDV podem ser diagnosticados pela detecção do RNA utilizando-se a técnica de Nested-PCR. O presente estudo teve como objetivo avaliar o RNA do CDV no sangue, urina e saliva em cães com diagnóstico clínico de cinomose. A técnica de Nested-PCR foi capaz de detectar o RNA em diferentes tipos de amostras biológicas. Obteve-se um maior número de resultados positivos em amostras de urina.
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