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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Investigação de tipos e origem celular neurogênicos em áreas diversas do sistema nervoso central da espécie Cebus apella

SANTOS, Adriano Guimarães 27 July 2015 (has links)
Submitted by Cássio da Cruz Nogueira (cassionogueirakk@gmail.com) on 2017-03-20T12:34:00Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_InvestigacaoTiposOrigem.pdf: 1391309 bytes, checksum: 5489258045ea8fe8c6fb1e8c52769d2b (MD5) / Approved for entry into archive by Edisangela Bastos (edisangela@ufpa.br) on 2017-03-22T15:38:29Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_InvestigacaoTiposOrigem.pdf: 1391309 bytes, checksum: 5489258045ea8fe8c6fb1e8c52769d2b (MD5) / Made available in DSpace on 2017-03-22T15:38:29Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_InvestigacaoTiposOrigem.pdf: 1391309 bytes, checksum: 5489258045ea8fe8c6fb1e8c52769d2b (MD5) Previous issue date: 2015-07-27 / CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico / A identificação de populações de precursores neuronais, e células-tronco geradas pelo próprio Sistema Nervoso Central tem sustentado debates sobre seu possível uso na reparação de danos causados por desordens agudas do Sistema Nervoso Central. Contudo, no caso do cérebro mamífero adulto, tal geração é considerada evolutivamente restrita a duas áreas: a zona subgranular do giro denteado do hipocampo, e as paredes dos ventrículos laterais onde novos neurônios são continuamente gerados. Utilizamos 6 primatas não-humanos, adultos, machos, da espécie Cebus apella (Macaco-prego, 10 anos de idade), com pesos entre 2,1 e 2,8 Kg (média 2,5 Kg) pré-tratados com BrdU que após sacrifício e devido processamento histológico, tiveram seus tecidos analisados em imuno-histoquímica para análises por meio de anti-BrdU, Anti-Nestina, anti-sox2 e DCX em diversas áreas do Sistema Nervoso Central. As paredes ventriculares apresentaram presença de neuroblastos similar àquela já observada em trabalhos anteriores, porém resultados inesperados também foram observadas em áreas como o córtex frontal. / Identifying populations of neuronal precursors and stem cells generated by own central nervous system has held discussions on its possible use in the repair of damage caused by acute disorders of the central nervous system. However, in the case of adult mammalian brain, such generation is considered evolutionarily restricted to two areas: subgranular zone of the dentate gyrus of the hippocampus, and the walls of the lateral ventricles where new neurons are continuously generated. We used 6 non-human primates, adults, males of the species Cebus (capuchin monkey, 10 years old), weighing between 2.1 and 2.8 kg (mean 2.5 kg) pretreated with BrdU that after sacrifice and because histological processing, their tissues were analyzed for immunohistochemical analysis using anti-BrdU anti-Nestin, and Sox2 anti-DCX in diverse areas of the Central Nervous System. The ventricular walls showed the presence of neuroblasts similar to that observed in previous studies, but unexpected results were also observed in areas such as the frontal cortex.

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