Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/61088
Type: Artigo de periódico
Title: LAMININ AND COLLAGEN-IV DISTRIBUTION AND ULTRASTRUCTURE OF THE BASEMENT-MEMBRANE OF THE GINGIVA OF THE RAT INCISOR
Author: GRANER, E
LINE, SRP
JORGE, J
LOPES, MA
ALMEIDA, OP
Abstract: The continuous growth of the rat incisor is associated with renovation of the junctional epithelium and resorption of the periodontal ligament. The circumdental papilla separates the connective tissue suffering resorption from the rest of the gingiva. Laminin and collagen IV were detected by the immunoperoxidase technique on the basement membrane of all regions of the gingival epithelium of the rat incisor, except the internal basal lamina and the internal surface of the circumdental papilla. The internal basal lamina is formed by a granular electron-dense material, without the organization of a typical basal lamina. Areas of the internal surface of the circumdental papilla, negative for laminin and collagen IV, lack the basal lamina. These data suggest that these molecules are not components of the dento-epithelial junction of the distal surface of the rat incisor. In addition, the basal lamina is absent or fragmented on the internal surface of the circumdental papilla, adjacent to the areas of the connective tissue undergoing resorption.
Subject: RAT INCISOR
BASEMENT MEMBRANE
LAMININ
ULTRASTRUCTURE
Country: Dinamarca
Editor: Munksgaard Int Publ Ltd
Rights: fechado
Identifier DOI: 10.1111/j.1600-0765.1995.tb01286.x
Date Issue: 1995
Appears in Collections:Unicamp - Artigos e Outros Documentos

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