Results: 8

Effects of vitamin e on the epithelial-mesenchymal transition in testicular development exposed to valproic acid

Int. j. morphol; 39 (4), 2021
SUMMARY: In testicular differentiation, somatic cells must adopt a specific destiny towards sustentacular, peritubular and interstitial cells, being fundamental for the morphogenesis of seminiferous tubules, mediated by morphogens such as Desert Hedgehog (DHH), insulin-like growth factor-1 (IGF-1) and fi...

Effect of a novel bioceramic root canal sealer on the angiogenesis-enhancing potential of assorted human odontogenic stem cells compared with principal tricalcium silicate-based cements

J. appl. oral sci; 28 (), 2020
Abstract Objective: This study evaluated the angiogenesis-enhancing potential of a tricalcium silicate-based mineral trioxide aggregate (ProRoot MTA), Biodentine, and a novel bioceramic root canal sealer (Well-Root ST) in human dental pulp stem cells (hDPSCs), human periodontal ligament stem cells (hPLS...

Evaluation of prophylactic and therapeutic effects of sildenafil on acute radiation proctitis in rats

Acta cir. bras; 33 (4), 2018
Abstract Purpose: To investigate the prophylactic and therapeutical effects of sildenafil in a model of acute radiation proctitis (ARP). Methods: All experimental procedures of this study was examined by histopathological, immunohistochemical and transmission electron microscopic analysis. Results: ...

Mecanismos moleculares do efeito citotóxico de FGF2 em células transformadas por RAS

O FGF2 (Fibroblast Growth Factor 2) é um clássico fator peptídico de crescimento que ativa vias intracelulares de sinalização molecular promovendo a transição G0 → G1 e o comprometimento com o ciclo celular. Não surpreendentemente, seus papéis pró-tumoral e angiogênico estão bem caracteriza...

Extracellular calcium increases fibroblast growth factor 2 gene expression via extracellular signal-regulated kinase 1/2 and protein kinase A signaling in mouse dental papilla cells

J. appl. oral sci; 26 (), 2018
Abstract We previously reported that elevated extracellular calcium (Ca2+) levels increase bone morphogenetic protein 2 expression in human dental pulp (hDP) cells. However, it is unknown whether extracellular Ca2+ affects the expression of other growth factors such as fibroblast growth factor 2 (FGF2). ...

Comparison of primary human gingival fibroblasts from an older and a young donor on the evaluation of cytotoxicity of denture adhesives

J. appl. oral sci; 26 (), 2018
Abstract Denture adhesives (DA) improve the retention and stability of ill-fitting dentures, especially for older adults. These materials should be biocompatible, i.e., they cannot cause undesired biological responses and be non-cytotoxic to oral tissues. However, in vitro testing of DA biocompatibility ...

Efeito dual de FGF2 e PMA em células HEK 293 transformadas por H-rasV12

Sabe-se há décadas que mutações nos genes ras estão presentes em cerca de 20% dos cânceres humanos, mas o desenvolvimento de terapias eficazes para o tratamento de câncer dependente dos oncogenes ras permanece um desafio científico importante. Nesse contexto, o nosso grupo publicou recentemente r...

Vulnerabilidades específicas de células malignas humanas dependentes de Ras oncogênico: FGF2 e PMA como supressores de tumor

Um passo limitante no desenvolvimento de fármacos para terapias do câncer está na descoberta de vulnerabilidades específicas de células tumorais que sirvam à identificação de alvos moleculares apropriados à intervenção farmacológica. Esta é a motivação central desta tese, cuja abordagem ex...