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CONA and UEA-I Ligands During Tooth Development Reveals Differences between Human and Rodents Models and Shows the Beginning of Mineral Extracelular Matrix Secretion International Journal of Morphology
Iglesias,Déborah Pitta Paraíso; Rego,Moacyr Jesus Barreto de Melo; Beltrão,Eduardo Isidoro Carneiro; Sobral,Ana Paula Veras.
Many of Glycobyological aspects of human development remain still unclear, mainly in oral science, and this could be observed in a lack of literature with few and old papers about this subject. During tooth histo-morphogenesis changes occur in basement membrane composition, expression of signaling molecules and in localization of cell surface components, where glyco components could be involved. In this sense, this work aimed to analyze the ConA ligands commonly founded in glycoproteins cores and UEA-I ligands since fucolization is a Key event in many physiological and pathological processes. Therefore 15 jaws of human fetuses were ethically obtained, histologicaly processed and then submitted to lectin histochemistry with appropriated controls. The...
Tipo: Journal article Palavras-chave: Odontogenesis; Carbohydrates; Lectin histochemistry.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300056
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Immunohistochemical Analysis of Human Homologue of Drosophila Patched (PTCH) in Dental Follicles of Impacted Third Molars International Journal of Morphology
Oliveira,David Moraes de; Silveira,Márcia Maria Ferreira da; Andrade,Emanuel Sávio de Souza; Sobral,Ana Paula Veras; Martins-Filho,Paulo Ricardo Saquete; Santos,Thiago de Santana; Oliveira,Patrícia Leimig Amorim de; Peixoto,Aline Carvalho; Santos,Jadson Alípio Santana de Souza; Piva,Marta Rabello.
This study investigated the immunodetection of PTCH in epithelial components of dental follicles associated with impacted third molars without radiographic signs of pathosis. One hundred and five specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferation was determined by using immunohistochemical labeling. Statistical analysis was performed using Fisher exact test and a level of significance of 5%. Of the 105 dental follicles collected, 3 were PTCH-positive. The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PTCH, as well as those with active remnants of odontogenic...
Tipo: Journal article Palavras-chave: Immunohistochemistry; Dental follicle; Odontogenic epithelial; PTCH.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100018
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Immunohistochemical Analysis of Proliferating Cell Nuclear Antigen (PCNA) in Dental Follicles of Impacted Third Molars International Journal of Morphology
Oliveira,David Moraes de; Silveira,Márcia Maria Ferreira da; Andrade,Emanuel Sávio de Souza; Sobral,Ana Paula Veras; Martins-Filho,Paulo Ricardo Saquete; Santos,Thiago de Santana; Oliveira,Patrícia Leimig Amorim de.
This study investigated the immunodetection of PCNA in epithelial components of dental follicles associated with impacted third molars without radiographical and morphological signs of pathosis. A total of 105 specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferating was determined by using immunohistochemical labeling. Statistical analysis was performed using the Fisher exact test. Of the 105 dental follicles collected, 6 were PCNA-positive ( 6%). The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PCNA, as well as those with proliferative remnants of odontogenic...
Tipo: Journal article Palavras-chave: Immunohistochemistry; Dental Sac; Third Molar.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200037
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