Data/hora: 08/06/2024 15:34:42

Provedor de dados: | Brazilian Journal of Medical and Biological Research
País: | Brazil
Título: | Skin morphology of the mutant hairless USP mouse
Autores: | Massironi,S.M.G.; Giacóia,M.R.; Maiorka,P.C.; Kipnis,T.L.; Dagli,M.L.Z.
Data: | 2005-01-01
Ano: | 2005
Palavras-chave: | Mutant mice; HrUSP mutants; Hairless mice; BALB/c mice; Ethyl-nitrosourea.
Resumo: | 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 the elastic system. The PAS and Alcian blue methods revealed neutral and acid glycosaminoglycans in the skin ground substance of both mouse strains. Immunohistochemical staining for fibronectin and laminin did not show differences between the mutant and BALB/c mice. Mast cells stained by the Gomori method and macrophages positive for HAM 56 antibodies were observed in both mouse strains. Except for the presence of enlarged cysts in the hairless strain, no qualitative differences were found during development of the skin of BALB/c and the mutant hairless mice.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100006
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2005000100006
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.38 n.1 2005
Fonte: | info:eu-repo/semantics/openAccess