Caracteres químicos em pós-colheita de bananas de diferentes genótipos cultivados no Estado de Sergipe.

A banana é um dos frutos mais consumidos no mundo, ocupando o quarto lugar com 7,2 milhões de toneladas de bananas em 512 mil hectares de plantação no ranking das fruteiras tropicais em volume de produção (BEZERRA et al., 2009; FAO, 2011). No Brasil existe um grande número de cultivares, mas são poucas as que apresentam potencial produtivo para exploração comercial, tolerância a pragas e doenças, porte reduzido e menor ciclo de produção (RAMOS et al., 2009)

Caracterização física de frutos de diferentes genótipos de bananeira em Nossa Senhora das Dores-Se.

Uma das espécies agronômicas mais cultivadas no Brasil, a bananeira (Musa spp.) vem se destacando pelo aumento de sua produtividade. Segundo dados da FAO (2011), a produção brasileira aparece entre as mais elevadas no mundo, ficando em quarto lugar, com 7,2 milhões de toneladas de bananas em 512 mil hectares de plantação. A região Nordeste se classifica como a maior produtora, apresentando em torno de 2.700.000 toneladas, tendo a Bahia como maior produtor nacional de banana (IBGE, 2011). Considerando a existência de grande número de cultivares no Brasil, são poucas as que apresentam potencial produtivo para exploração comercial, tolerância a pragas e doenças, porte reduzido e menor ciclo de produção (RAMOS et al., 2009)

Avaliação da qualidade pós-colheita dos genótipos de bananas fhia-18 e pa94-01 cultivados em Sergipe, Brasil.

Sergipe é o sétimo estado maior produtor da região Nordeste com aproximadamente 57 mil toneladas colhidos numa área de aproximadamente quatro mil hectares (1). Existe um consenso que o plantio e cultivo de variedades inadequadas juntamente com os problemas fitossanitários configuram nos maiores obstáculos a produção de bananas no estado de Sergipe (2)

Randomized Controlled Clinical Trial of Nanostructured Carbonated Hydroxyapatite for Alveolar Bone Repair

The properties of the biodegradation of bone substitutes in the dental socket after extraction is one of the goals of regenerative medicine. This double-blind, randomized, controlled clinical trial aimed to compare the effects of a new bioabsorbable nanostructured carbonated hydroxyapatite (CHA) with a commercially available bovine xenograft (Bio-Oss®) and clot (control group) in alveolar preservation. Thirty participants who required tooth extraction and implant placement were enrolled in this study. After 90 days, a sample of the grafted area was obtained for histological and histomorphometric evaluation and an implant was installed at the site. All surgical procedures were successfully carried out without complications and none of the patients were excluded. The samples revealed a statistically significant increase of new bone formation (NFB) in the CHA group compared with Bio-Oss® after 90 days from surgery (p < 0.05). However, the clot group presented no differences of NFB compared to CHA and Bio-Oss®. The CHA group presented less amount of reminiscent biomaterial compared to Bio-Oss®. Both biomaterials were considered osteoconductors, easy to handle, biocompatible, and suitable for alveolar filling. Nanostructured carbonated hydroxyapatite spheres promoted a higher biodegradation rate and is a promising biomaterial for alveolar socket preservation before implant treatment

In Vitro and In Vivo Evaluation of Nanostructured Biphasic Calcium Phosphate in Granules and Putty Configurations

Synthetic biphasic calcium phosphate (BCP) granules and powder are biocompatible biomaterials with a well-known capacity for osteoconduction, presenting very satisfactory clinical and histological results. It remains unanswered if the putty configuration impacts the biological response to the material. In this study, we aimed to compare the cytocompatibility and biocompatibility of nanostructured BCP in the putty configuration (moldable nanostructured calcium phosphate, MnCaP) on the healing of critical-sized bone defects (8 mm) in rat calvaria. Cytocompatibility was determined through the viability of fibroblast cells (V-79) to the extracts of different concentrations of MnCaP. Forty-five Wistar rats were randomly divided into three groups (n = 15)—clot, MnCaP, and commercial biphasic calcium phosphate in granules configurations (Nanosynt®)—and subdivided into three experimental periods (1, 3, and 6 months). Histological, histomorphometric, and microtomographic analyses allowed the evaluation of newly formed bone, residual biomaterial, and connective tissue. The in vitro evaluation showed that MnCaP was cytocompatible. The histomorphometric results showed that the Nanosynt® group granted the highest new-formed bone values at six months (p < 0.05), although the biomaterial volume did not differ between groups. The putty configuration was easier to handle, and both configurations were biocompatible and osteoconductive, presented similar biosorption rates, and preserved the calvaria architecture