Total Body Irradiation
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Effect of ozone oxidative preconditioning in preventing early radiation-induced lung injury in rats
Ionizing radiation causes its biological effects mainly through oxidative damage induced by reactive oxygen species. Previous studies showed that ozone oxidative preconditioning attenuated pathophysiological events mediated by reactive oxygen species. As inhalation of ozone induces lung injury, the aim of this study was to examine whether ozone oxidative pre
Braz J Med Biol Res. Publicado em: 27/09/2013
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2. Implementação da irradiação de corpo inteiro em radioterapia / Implementation of total body irradiation in radiotherapy
Ao implementar uma técnica de tratamento, as características do feixe nas condições de irradiação precisam ser bem conhecidas e estudadas. Cada um dos parâmetros utilizados para cálculo de dose deve ser medido e validado antes da utilização dos mesmos na rotina clínica. Isso se torna ainda mais necessário quando se tratam de técnicas especiais.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/10/2010
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3. Effect of melatonin and time of administration on irradiation-induced damage to rat testes
The effect of ionizing irradiation on testes and the protective effects of melatonin were investigated by immunohistochemical and electron microscopic methods. Eighty-two adult male Wistar rats were divided into 10 groups. The rats in the irradiated groups were exposed to a sublethal irradiation dose of 8 Gy, either to the total body or abdominopelvic region
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-07
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4. Adequacy of cytogenetic dosimetry to evaluate partial and total body irradiation / AdequaÃÃo da dosimetria citogenÃtica para avaliaÃÃo de irradiaÃÃo parcial e de corpo inteiro
The majority of human exposures to ionizing radiation involves partial human body irradiation. Thus, the use of cytogenetic dosimetry, when this aspect is not taken into account, can result in dose underestimation to the irradiated subject. In this context, this research studied methodological parameters of biodosimetry, such as cell culture time, time of Co
Publicado em: 2009
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5. The effects of low power laser irradiation on the regeneration of the common fibular nerve in rat submitted to a crush lesion. / Os efeitos da irradiação com laser de baixa potência na regeneração do nervo fibular comum do rato submetido a lesão por esmagamento
Peripheral nerve regeneration is a natural process, which requires a long period to complete, with a few evidences that physical agents including laser, can speed it up. The main objective of this investigation was to analyze the influence of low power laser (AsGaAL) irradiation on nerve regeneration, in a model of crush injury of the common fibular nerve of
Publicado em: 2009
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6. AVALIAÇÃO DO ESTRESSE OXIDATIVO E DA ATIVIDADE DA ENZIMA d-AMINOLEVULINATO DESIDRATASE EM PACIENTES TRANSPLANTADOS DE MEDULA ÓSSEA / EVALUATION OF OXIDATIVE STRESS AND d-AMINOLEVULINIC ACID DEHYDRATASE IN BONE MARROW TRANSPLANTATION PATIENTS
Bone marrow transplantation (BMT) has been used in the treatment of a number of diseases. Before BMT, patients are submitted to a conditioning regime (CR) that consists of administration of high doses of chemo- or radiotherapy. This CR has the objective of eradicating the residual disease and inducing an immunosuppression that will allow the engraftment of c
Publicado em: 2008
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7. Melatonin prevents inflammation and oxidative stress caused by abdominopelvic and total body irradiation of rat small intestine
We investigated the day-night differences in intestinal oxidative-injury and the inflammatory response following total body (TB) or abdominopelvic (AP) irradiation, and the influence of melatonin administration on tissue injury induced by radiation. Rats (male Wistar, weighing 220-280 g) in the irradiated groups were exposed to a dose of 8 Gy to the TB or AP
Brazilian Journal of Medical and Biological Research. Publicado em: 31/07/2007
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8. Uso do laser de baixa intensidade (GaAlAs) na prevenção de mucosite bucal em pacientes submetidos a transplante de medula óssea / Use of low intensity laser (GaAlAs) in the prevention of oral mucositis in patients undergoing bone marrow transplantation
Oral mucositis is one of the most debilitating complications in patients undergoing bone marrow transplants, occurring 50 to100% in these patients. The oral mucositis treatment and prevention is not completely defined, although the low intensity laser is widely used. The aim of the current study was to investigate the use of low intensity laser (GaAlAs) in t
Publicado em: 2006
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9. Avaliação ultra-estrutural do efeito radioprotetor do selenito de sodio em glandulas submandibulares de ratos
The radioprotective effect of sodium selenite in the secretory cells of submandibular glands of rats was assessed by ultrastructural analysis. A total of 57 rats were used, which were divided into four experimental groups: control, irradiated, sodium selenite and sodium selenite/irradiated. The animals belonging to the irradiated and sodium selenite /irradia
Publicado em: 2005
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10. Estudo clinico-epidemiologico das infecções fungicas em receptores de transplante de medula ossea no Hospital das Clinicas na Universidade Estadual de Campinas
Bone marrow transplant (BMT) recipients are at high risk for developing invasive fungal infections. Deep and prolonged immunosupression have been associated conditions to increase the number of invasive fungal infections in this population. The study of the local and specific epidemiology of these immunosuppressive patients has been an important issue for th
Publicado em: 2001
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11. THE EFFECTS OF TOTAL BODY IRRADIATION ON SOME ASPECTS OF HUMAN IRON METABOLISM
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12. Inhibition of the development of radiation-induced leukemia in mice by reduction of food intake.
We have reported previously that the incidence of tumors induced in Sprague-Dawley rats by total-body gamma-ray irradiation can be considerably reduced by restriction of food intake [Gross, L. & Dreyfuss, Y. (1984) Proc. Natl. Acad. Sci. USA 81, 7596-7598]. In experiments reported here we investigated the influence of reduced food intake on the development o