200 resultados para Neoplasias de tecidos moles
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Pós-graduação em Biologia Animal - IBILCE
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Pós-graduação em Medicina Veterinária - FCAV
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Pós-graduação em Medicina Veterinária - FCAV
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The effect in the gingival tissue of four distinctive types of relationships between the major conector and the gingival margin was investigated in eight subjects in association with the experimental gingivitis model. The subjects wore appliances constructed in acrylic resin (retained by means of embrasure hooks) throughout the day an night, except during meals. After the appliances had been placed, the subjects were abstained from any oral hygiene for twenty-one days. Records of the Plaque Index, Gingival Index and probing deplh were taken at baseline and at each week. Data showed that there was a small increase in the Plaque Index and Gingival Index for the four areas and that the degree of inflammation of the covered areas was higher in the area without relief
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Com o objetivo de avaliar as características de carcaça e a alometria dos cortes comerciais e dos tecidos de cabritos F1 Boer × Saanen, 35 animais foram abatidos ao atingirem 5, 10, 15, 20 e 25 kg de peso vivo (PV). A dieta dos animais foi composta de leite de vaca nos primeiros 49 dias e ração à vontade do sétimo dia até o abate. Os cortes foram obtidos após o resfriamento da carcaça e a perna foi dissecada em músculo, osso e gordura. O PV teve efeito linear decrescente no rendimento de carcaça fria e na área de olho-de-lombo por kg de carcaça. Os pesos de perna, paleta e pescoço em relação à carcaça fria decresceram linearmente, mas houve efeito quadrático sobre o rendimento de costelas e lombo. O crescimento de paleta, pescoço e perna foi isométrico (b=1) ao do corpo, enquanto o das costelas e do lombo foi mais lento (b¹ 1). Os músculos da perna cresceram igualmente, a gordura mais lenta e os ossos mais rapidamente que a perna, enquanto o desenvolvimento da gordura subcutânea foi mais tardio que o da intermuscular. Para obtenção de carcaça de 8 a 11 kg com rendimento superior a 44%, boa proporção de músculo e gordura com menor perda durante o resfriamento, recomenda-se abater os animais com PV entre 20 e 25 kg, mas, se o objetivo for carcaça de menor peso, o abate dos animais deve ser feito ao final do aleitamento com aproximadamente 10 kg de peso corporal.
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Introduction: much studies regarding risk factors associated with oral cancer. Factors such as smoking and alcohol and solar radiation are well established, but others, such as bacterial influence in the development or progression of a tumor still remain unexplained. Interest in the possible relationship between bacteria and different stages of cancer development has increased since the classification of H. pylori by the WHO as a definite carcinogen. Subsequently, links between infection and the onset of cancer in various sites in the body were discovered. Review of literature: this literature review attempts to show the influence of poor oral hygiene, with consequent bacterial accumulation as a possible important risk factor for the initiation and development of mouth cancer, and correlate the possible mechanisms by which bacteria can initiate or promote carcinogenesis. Conclusion: there is much evidence that bacteria in the oral cavity and periodontopathic are present in tumor tissue, however, still can not affirm that these bacteria initiate or promote carcinogenesis.
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This study evaluated the oral conditions of 50 cancer patients undergoing head and neck radiotherapy (RT). Clinical examinations were performed before treatment, immediately after 30 days after RT and 6 months after conclusion of RT. Periodontal conditions were evaluated using the criteria of the Periodontal Screening and Recording (SRP) and the need for dental treatment were determined. The presence of xerostomia, mucositis and other side effects of RT were also evaluated. Soon after the beginning of RT, the irradiated patients of radiotherapy developed severe mucositis, dermatitis, dysgeusia, xerostomia and, to a lesser extent, candidosis. After completion of radiotherapy, 68% of patients had level III or IV mucositis. It was found that the development of mucositis hinders oral hygiene and these factors contribute to exacerbate inflammation of periodontal tissues. The data from this study evidenced that the main cause of desertion of RT and of severity of sequelae of RT depends on the oral conditions of patients before starting treatment and the absence of previous dental treatment prior RT.
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Introduction: much studies regarding risk factors associated with oral cancer. Factors such as smoking and alcohol and solar radiation are well established, but others, such as bacterial influence in the development or progression of a tumor still remain unexplained. Interest in the possible relationship between bacteria and different stages of cancer development has increased since the classification of H. pylori by the WHO as a definite carcinogen. Subsequently, links between infection and the onset of cancer in various sites in the body were discovered. Review of literature: this literature review attempts to show the influence of poor oral hygiene, with consequent bacterial accumulation as a possible important risk factor for the initiation and development of mouth cancer, and correlate the possible mechanisms by which bacteria can initiate or promote carcinogenesis. Conclusion: there is much evidence that bacteria in the oral cavity and periodontopathic are present in tumor tissue, however, still can not affirm that these bacteria initiate or promote carcinogenesis.
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A cinomose é uma doença de desafio diagnóstico, especialmente quando não há histórico de vacinação. O objetivo deste estudo foi detectar e quantificar partículas virais de cinomose em diferentes fluidos e tecidos biológicos de um cão, determinando o melhor tecido para diagnóstico viral ante mortem na fase de viremia. Atendeu-se um cão adulto com manifestações clínicas inespecíficas e corpúsculos de Sinegaglia Lentz em linfócitos. Amostras post mortem foram submetidas a PCR em tempo real (qPCR), que demonstrou RNA viral em concentrações de (x105) em líquor (1.216), bexiga (1.009), cérebro (605), sangue (572), cerebelo (523), rins (373), fígado (257), pulmões (191), estômago (154), terceira pálpebra (70) e urina (2,1). A técnica de qPCR permitiu confirmar a infecção pelo vírus, descartando vacinação recente. A amostra de líquor mostrou-se representativa para diagnóstico molecular de fase aguda de cinomose no animal estudado.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Computed tomography (CT) can be considered an important test to identify the presence of primary brain neoplasias in dogs. CT results can help define the type of brain tumor when associated with clinical findings. It allows the identification of lesions and their features, such as size, location, compression and invasion of adjacent tissue. One must analyze the density, mass effect, peritumoral edema, calcification, and image enhancement after intravenous injection of contrast medium. Gliomas, meningiomas and tumors of the choroid plexus and pituitary are the most common primary brain neoplasms diagnosed by CT in dogs. The aim of this paper is to review the literature related to primary brain tumors and report their most important tomographic features, in order to help clinicians achieve a presumptive diagnosis of tumor type.