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| Massironi,S.M.G.; Reis,B.L.F.S.; Carneiro,J.G.; Barbosa,L.B.S.; Ariza,C.B.; Santos,G.C.; Guénet,J.L.; Godard,A.L.B.. |
| When compared to other model organisms whose genome is sequenced, the number of mutations identified in the mouse appears extremely reduced and this situation seriously hampers our understanding of mammalian gene function(s). Another important consequence of this shortage is that a majority of human genetic diseases still await an animal model. To improve the situation, two strategies are currently used: the first makes use of embryonic stem cells, in which one can induce knockout mutations almost at will; the second consists of a genome-wide random chemical mutagenesis, followed by screening for mutant phenotypes and subsequent identification of the genetic alteration(s). Several projects are now in progress making use of one or the other of these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mouse; Ethylnitrosourea; Mutation; Co-isogenic mutations; Mutagenesis. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000900009 |
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| Massironi,S.M.G.; Giacóia,M.R.; Maiorka,P.C.; Kipnis,T.L.; Dagli,M.L.Z.. |
| The morphology of the skin of the mutant hairless USP mouse was studied by histological, histochemical and immunohistochemical methods and compared to the skin of BALB/c mice. Representative sections of the dorsal skin from mice of both strains aged 18 days, and 1, 3, 6, and 8 months were studied. Sections stained with hematoxylin and eosin showed cystic formations called utricles and dermal cysts in the dermis that increased in size and number during growth. Skin thickness increased significantly at 8 months. Sections stained with picrosirius and examined with polarized light, displayed different colors, suggesting different thicknesses of dermal collagen fibers (probably types I and III). Weigert, Verhoeff and resorcin-fuchsin stains revealed fibers of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mutant mice; HrUSP mutants; Hairless mice; BALB/c mice; Ethyl-nitrosourea. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100006 |
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