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Experimentally induced diabetes mellitus influences expression of VEFGand CD68 in rat teeth pulp / La diabetes mellitus inducida experimentalmente influye en la expresión de VEGF y CD68 en la pulpa de dientes de rata
Uysal, Ibrahim; Gokalp-Ozkorkmaz, Ebru; Deveci, Engin.
Afiliação
  • Uysal, Ibrahim; Diyarbakır Oral and Dental Health Center. Department of Endodontics. TR
  • Gokalp-Ozkorkmaz, Ebru; Dicle University. Faculty of Medicine. Department of Histology and Embryology. TR
  • Deveci, Engin; Dicle University. Faculty of Medicine. Department of Histology and Embryology. TR
Int. j. morphol ; 37(2): 606-611, June 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1002265
Biblioteca responsável: CL1.1
ABSTRACT
The purpose of this study was to examine the expression levels of the dental pulp to elucidate the role of Vascular Endothelial Growth Factor (VEGF) and CD68 on vascular angiogenesis, inflammation and odontoblast differentiation in the pulp tissue of diabetic rats depending on the effect of possible damage induced by diabetes. Wistar rats were used in the study, divided into two groups. Control group was fed with standard rat chow and drinking water ad libitum for 8 weeks. Single dose of streptozotocin (STZ) (55 mg/kg), was disolved in sodium citrate buffer and administered by intraperitoneal injection. Blood glucose concentration of rats exceeding 250 mg/dl were accepted as diabetic. Rats were sacrificed under anesthesia. Tissues were immediately dissected, fixed and embedded in paraffin and cut with a microtome then examined under light microscope. In the cross-sections of pulp tissue of diabetic group; the dilation of blood vessels besides hemorrhage and a significant increase in inflammatory cells were seen. The expression of VEGF in the blood vessel endothelial cells of the pulp was increased. VEGF showed positive reaction for degenerative odontoblast cells in the pulp. In this study, increase in VEGF and CD68 expressions in pulp tissue due to the effect of diabetes was thought to delay pulp treatment by inducing soft tissue damage and hypoxia.
RESUMEN
El propósito de este estudio fue examinar los niveles de expresión en la pulpa dental para dilucidar el papel del Factor de Crecimiento Endotelial Vascular (VEGF) y el CD68 en la angiogénesis, la inflamación y la diferenciación de odontoblastos en el tejido pulpar de ratas diabéticas, dependiendo del efecto de daño inducido por la diabetes. Se utilizaron ratas Wistar divididas en dos grupos. El grupocontrol se alimentó con comida estándar para ratas y agua potable ad libitum durante 8 semanas. Se administró mediante inyección intraperitoneal dosis única de estreptozotocina (STZ) (55 mg / kg), se disolvió en tampón de citrato de sodio. La concentración de glucosa en sangre de ratas que excedían los 250 mg / dl se aceptó como diabética. Las ratas fueron sacrificadas bajo anestesia. Los tejidos se disecaron de inmediato, se fijaron en parafina y se cortaron para luego ser examinados con un microscopio óptico. En las secciones transversales del tejido pulpar del grupo diabético se observó la dilatación de los vasos sanguíneos además de hemorragia y un aumento significativo de células inflamatorias. La expresión de VEGF se incrementó en las células endoteliales de los vasos sanguíneos de la pulpa. VEGF mostró una reacción positiva para las células odontoblásticas degenerativas en la pulpa. El aumento en la expresión de VEGF y CD68 en el tejido de la pulpa debido al efecto de la diabetes puede retrasar el tratamiento de la pulpa al inducir hipoxia y daños en los tejidos blandos.
Assuntos


Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Polpa Dentária / Diabetes Mellitus Experimental Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2019 Tipo de documento: Artigo País de afiliação: Turquia Instituição/País de afiliação: Dicle University/TR / Diyarbakır Oral and Dental Health Center/TR

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Polpa Dentária / Diabetes Mellitus Experimental Limite: Animais Idioma: Inglês Revista: Int. j. morphol Assunto da revista: Anatomia Ano de publicação: 2019 Tipo de documento: Artigo País de afiliação: Turquia Instituição/País de afiliação: Dicle University/TR / Diyarbakır Oral and Dental Health Center/TR
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