Ultraestrutura, expressão gênica e imunomarcação da caspase-3, XIAP, IGF-1R do córtex cerebelar de ratos UChA (consumidores voluntários de etanol)

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Oliveira, Suelen Alves de [UNESP]
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual Paulista (Unesp)
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://hdl.handle.net/11449/132736
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/18-12-2015/000855558.pdf
Resumo: Introduction: The cerebellum is susceptible to the harmful effects of ethanol in acute or chronic exposures at different ages, which may cause motor, learning and cognitive disorders and promote apoptotic cell death (PCD) as well. Our objective was to evaluate apoptosis in Golgi and Purkinje neurons and in granular cell disease of the cerebellum of adult rats of the type UChA. Methodology: The rats were divided in two experimental groups (20 rats per group): a control group, consisting of abstinent UChA animals and the experimental group, formed by UChA rats, volunteers consumers of 10% ethanol (˂ 2g ethanol / kg weight body / day). From 65 day-age to the 120 day-age, the animals received 10% ethanol solution. After 120 days, the rats were anesthetized and prepared for euthanasia. The cerebellum was then analyzed by transmission electron microscopy (TEM), immunohistochemistry to apoptosis, caspase-3 (pro-apoptotic), XIAP (anti-apoptotic) and IGF-1R in Golgi, Purkinje neurons and granular as well. It was also evaluated by RT-PCR (Reverse transcription polymerase chain reaction) the regulatory genes caspase-3, XIAP and IGF-1R in the cerebellar cortex of groups. Results: The UChA animals showed accumulation of lipid droplets, presence of electron-nuclei in granule neurons and Purkinje, disorganization of the medullary body of the cerebellum with some changes in the myelin sheath of the cortex. It was also identified significant increase in the Immunostaining caspase-3 and XIAP in Purkinje neurons and granular. The DNA fragmentation was significant in Purkinje cells. The IGF-1R didn't have any change though. There were no significant differences in the formulation of caspase-3 genes, XIAP and IGF-1R. Conclusion: Ethanol induces apoptosis in granular and Purkinje cells of the cerebellum of adult UChA rats