440 resultados para Neoplasias colorretais - Radioterapia


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The use of ionizing radiation in the treatment of oncological diseases in veterinary medicine has grown in recent years. In general, these animals are very well tolerated by the treatment with radioactive elements; however, the harmful effects that may occur are not always able to be controlled, particularly those relating to skin burns. Then, the purpose of this study was to evaluate the effects of aqueous extract of Triticum vulgare in treat of 10 cats radiodermatitis with squamous cell carcinoma (SCC), which were treated with radiotherapy as single modality treatment. The drug was used topically and daily until complete healing of wounds. Based on the findings, it may concluded beneficial effects of the drug, because it allowed the formation of granulation tissue and epithelization of wounds with epidermal repair not exuberant, good-quality cosmetics and, considering the deleterious effects that can result from cancer treatments.

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Spontaneous tumors of the mammary gland in female dogs, represent the most frequent neoplasms observed in the small animal clinic, which explains the high interest of researchers in the study of this lesion. This study aimed to determine the frequency of mammary tumors in female dogs treated at HOSPMEV/UFBA, in Salvador, from January 2006 to April 2008, as well as to carry out the clinical characterization, histopathologic classification and the georeferencing of this pathology. The results showed a high prevalence of mammary tumors in female dogs, with most of the tumors in more advanced stages and the carcinomas in mixed tumors the predominant histologic type. There was maalso a.correlation between socioeconomic characteristics of the study population with known prognostic factors for mammary neoplasms in female dogs. These results reflect the delay in providing veterinary medical care. Thus, it's important to educate the population regarding the prevention and detection of mammary cancer in female dogs looking for an early diagnosis and appropriate therapy.

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Bovine enzootic hematuria is characterized by the development of hemangiomatous lesions from several types of neoplastic processes, from epithelial and mesenchymal origin. In this research the histogenesis of neoplastic lesions found in bladder of bovines with enzootic hematuria from Caparaó microregion in the state of Espírito Santo, Brazil was determined. To accomplish this objective, immunohistochemical analysis was performed with primary antibodies: anti-vimentin, anti-cytokeratin, anti-CD31 and anti-uroplakin. Neoplasms found included urothelial carcinoma, in situ carcinoma, adenocarcinoma, hemangioma, myxoma e hemangiosarcoma. Immunohistochemical staining of cytokeratin in epithelial neoplasms and vimentin in mesenchymal neoplasms was significant (p<0.05). CD31 was positive in all the vessels of all samples, however, the staining was significant (p<0.05) in the tumor endothelial cells of the vascular mesenchymal neoplasms, as in hemangiomas and hemangiosarcomas. Uroplakin III staining was uneven in several neoplastic types and showed no significant difference (p>0.05). Most neoplasms showed an atypical uroplakin staining on urothelium and, in the case of hemangiosarcomas there was no staining of the urothelium at all. The Spearman statistical analysis revealed a positive correlation (r= 0.63, p= 0.05) between CD31 and vimentin and between cytokeratin and uroplakin (rs= -0.61, p= 0.05). It was concluded that biomarkers anti-cytokeratin, anti-vimentin and anti-CD31 are important for the diagnosis of neoplasms epithelial, mesenchymal and vascular mesenchymal, respectively. It is possible to use vimentin and CD31 in association in vascular mesenchymal neoplasms and cytokeratin and uroplakin in epithelial neoplasms. The uroplakin is an effective marker, not only for tumor diagnosis, but also to evaluate the urothelial integrity.

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Pós-graduação em Bases Gerais da Cirurgia - FMB

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Bases Gerais da Cirurgia - FMB

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Pós-graduação em Ciência Animal - FMVA

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Pós-graduação em Ciência Animal - FMVA

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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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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Pós-graduação em Medicina Veterinária - FCAV

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