Background and Purpose. To evaluate the capacity of mandibular bone marrow blood aspirate associated with biomaterials to stimulate bone tissue neoformation compared to the use of peripheral blood aspirate in patients with bone loss in the premaxillary region. Materials and Methods. The study included 16 patients with maxillary atresia. The region was grafted with xenograft blocks associated with the following treatments: G1, the patient’s peripheral blood during surgery, and G2, dripping of mandibular bone marrow blood until the xenograft was completely wet. After 7 and 14 days, scintigraphic images of the regions of interest (ROI) were taken to quantify pixels, which indicate osteogenic activity. Additionally, trephined samples obtained at the time of implant placement were stained in H&E, and newly formed bone tissue was quantified. The data were tabulated and statistically analyzed at a significance level of 5%. Results. Scintigraphic data showed greater osteogenic activity with mandibular bone marrow blood (G2) at all times evaluated p < 0.05 . As for the histomorphometric analysis, a greater amount of bone tissue was observed in samples treated with mandibular bone marrow blood (G2) compared to peripheral blood (G1) p < 0.05 . Conclusions. The appositional bone reconstruction technique in the block associated with mandibular bone marrow blood increased bone neoformation and osteogenic activity compared to conventional graft treatment with peripheral blood.
A Diabetes Mellitus é caracterizada pelo aumento sustentado da glicemia. A classe de fármacos inibidores do cotransportador de sódio-glicose 2 (iSGLT2) são opções terapêuticas importantes por seu efeito anti-hiperglicêmico. Metodologia: Tratase de uma revisão narrativa de literatura, utilizando as bases de dados MEDLINE, LILACS, SCiELO e BVS, tendo artigos de 2017 a 2021. Resultados: Os artigos selecionados foram publicados em periódicos internacionais, sendo a maioria escritos em língua inglesa. Discussão: Os inibidores de SGLT2 são agentes que levam a glicosúria, promovendo a homeostase glicêmica através deste mecanismo, sendo recomendados como terapia de segunda linha, após falha à metformina. Na cetoacidose euglicêmica induzida por iSGLT2, a depuração renal da glicose está aumentada, contribuindo para níveis mais baixos da glicemia, bem como da insulina circulante, levando, por tanto, a uma maior produção de corpos cetônicos, devido a redução da atividade anti-lipolítica exercida pela insulina. Conclusão: Os inibidores de SGLT2 são medicamentos novos que possuem um papel importante na homeostase glicêmica, mas, apesar disso, possuem efeitos colaterais importantes, que devem ser descobertos precocemente, a fim de se evitar maiores danos ao paciente.
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