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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

Uso do meio Roswell Park Memorial Institute (RPMI) como conservante de córneas de camundongos swiss

LIRA, Fernando José Xavier de 29 February 2012 (has links)
Submitted by (edna.saturno@ufrpe.br) on 2016-10-07T12:50:23Z No. of bitstreams: 1 Fernando Jose Xavier de Lira.pdf: 728148 bytes, checksum: 8e97658a43081f68d2680e041cb05bf2 (MD5) / Made available in DSpace on 2016-10-07T12:50:23Z (GMT). No. of bitstreams: 1 Fernando Jose Xavier de Lira.pdf: 728148 bytes, checksum: 8e97658a43081f68d2680e041cb05bf2 (MD5) Previous issue date: 2012-02-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / An important function of corneal endothelial cells is to provide barrier and pump to maintain tissue transparency. Therefore the purpose of this study was to investigate the RPMI tissue culture medium for mouse cornea preservation kept under refrigeration. In order to evaluate endothelium cells integrity and shape, corneas were processed, immediately after removal from medium, for light and scanning electron microscopy. Corneas became unavailable as of day 4 of storage, exhibiting morphological alterations, with cellular death characteristics and increased stromal thickness, indicating severe edema. It was concluded that RPMI medium is not viable to preserve corneas for penetrating keratoplasty, nevertheless, we believe that it may be used as a preservation medium for corneal lamellar grafts because it is maintained sterile. / As células do endotélio corneal apresentam a importante função de bomba e barreira, mantendo assim a córnea transparente.. Portanto, o propósito deste estudo foi investigar o meio de cultura de tecidos RPMI como forma de preservação de córneas de camundongos mantidas sob refrigeração. Imediatamente após a retirada do meio de preservação, as córneas foram processadas para microscopia de luz e eletrônica de varredura para análise da integridade e forma da célula endotelial. As córneas tornaram-se inviáveis a partir do dia 4 de conservação, apresentando alterações morfológicas, sinais de morte celular e espessura estromal aumentada, indicando edema importante. Concluiu-se que o meio RPMI não é viável pra conservação de córneas com a finalidade de ceratoplastia penetrante, embora, acreditamos que por se manter estéril poderá ser usado para enxertos lamelares.

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