The NASA Western University Conference Summary report

Scientific NASA program conference in cooperation with West Coast universitie

Digestibilidade de dietas com diferentes fontes de carboidratos e sua influência na glicemia e insulinemia de cães Digestibility of diets with different sources of carbohydrates and your influence in the blood glucose and blood insulin in health dogs

Com o objetivo de estudar a influência das dietas com diferentes fontes de carboidratos na glicemia e insulinemia pós-prandial de cães, foi conduzido, no Departamento de Zootecnia da Universidade Federal de Lavras (UFLA), um experimento com cães da raça Foxhound Americano. Foram utilizados 24 cães machos com peso médio de 34,61 ± 3,42 kg, distribuídos em delineamento em blocos casualizados, com parcela subdividida no tempo, com quatro tratamentos, e um animal por unidade experimental. Os tratamentos consistiram em três dietas, formuladas para conterem as mesmas quantidades (63%) dos cereais avaliados (milho, sorgo e arroz) e uma quarta dieta constituindo uma mistura em partes iguais de cada cereal. As dietas foram isoenergéticas e isoprotéicas. Os animais foram alimentados uma vez ao dia, pela manhã, e as quantidades ingeridas foram estabelecidas de acordo com a equação de predição de Heusner (1982) para energia de manutenção acrescidas em 10%. Foram avaliadas a digestibilidade da matéria seca, a digestibilidade do amido total, a energia digestível, a glicemia e a insulinemia. Para a diferenciação das médias, foi utilizado o teste de Scott-Knott (P<0,05). Observou-se que a dieta 3 (arroz) foi superior (P<0,05) para a variável digestibilidade da matéria seca e digestibilidade do amido total. Para a variável energia digestível, as dietas 1 e 3 (milho e arroz) foram superiores às demais (P<0,05). Não foi observada diferença significativa entre as dietas para as variáveis glicemia (P=0,51) e insulinemia (P=0,66) pelo teste F. Concluiu-se que as diferentes fontes de carboidratos utilizadas nas quatro dietas não influenciaram a glicemia e insulinemia pós-prandial em cães sadios.<br>In order to evaluate the influence of the diets with different carbohydrates sources in blood glucose and blood insulin in dogs, were conducted, in Animal Science Department of Federal University of Lavras (UFLA), a experiment with dogs of breed American Foxhound. Were utilized 24 males dogs with average weight of the 34,61 ± 3,42 kg, allotted in randomized blocks design with subdivided piece in time, with four treatments, and one animal per unit experimental. The treatments were three diets formulated to contain the same amount (63%) of the cereals evaluate (corn, sorghum and rice) and a forth diet being a blend in equal parts of each cereal. The animals were fed once per day, for the morning, and the consume established agreed with the prediction equation of the Heusner (1982) for mantence energy, plus 10%. The digestible dry matter, the digestible starch, the digestible energy, the blood glucose and blood insulin were evaluated. For the statistical analysis were utilized the test of Scort-Knott (P<0,05). Thus, the diet 3 (rice) were higher (P<0,05) for the digestibility of dry matter variable and digestible starch variable. For the digestible energy variable, the diets 1 and 3 (corn and rice) were higher then others (P<0,05). It was found that the treatments didn't influence the blood glucose (P=0,51) and blood insulin (P=0,66) for test F. In conclusion, the different sources of the carbohydrates utilized, in the four diets, didn't influence in the blood glucose and blood insulin in health dogs

Arachnoid granulation affected by subarachnoid hemorrhage

The purpose of this study was to investigate using light microscopy the fibro-cellular components of arachnoid granulations affected by mild and severe subarachnoid hemorrage. The erythrocytes were in the channels delimitated by collagenous and elastic bundles and arachnoid cells, showing their tortuous and intercommunicating row from the pedicle to the fibrous capsule. The core portion of the pedicle and the center represented a principal route to the bulk outflow of cerebrospinal fluid and erythrocytes. In the severe hemorrhage, the fibrocellular components are desorganized, increasing the extracellular channels. We could see arachnoid granulations without erythrocytes, which cells showed big round nucleous suggesting their transformation into phagocytic cells