Encontrados 22 documentos, a visualizar página 1 de 3
Variabilidade introduzida pelo operador no processamento dos estudos Gated-SPEC...
Antunes, Marta O.; Gomes, Rafael R.; Vieira, LinaIntrodução – Os estudos Gated – Single Photon Emission Computed Tomography (SPECT) são uma das técnicas de imagiologia cardíaca que mais evoluiu nas últimas décadas. Para a análise das imagens obtidas, a utilização de softwares de quantificação leva a um aumento da reprodutibilidade e exatidão das interpretações. O objetivo deste estudo consiste em avaliar, em estudos Gated-SPECT, a variabilidade intra e intero...
Adesão à terapêutica em diabéticos tipo II
Carvalho, C.; Martins, C.; Soares, N.; Rafael, R.; Ribeiro, Maria Isabel; Pinto, Isabel C.Atualmente regista-se um aumento significativo dos casos de Diabetes mellitus tipo 2 a nível mundial e em idades cada vez mais precoces (WHO, 2003; SPD, 2012). Segundo a SPD (2012), a prevalência desta patologia, em Portugal, em 2011, foi de 7,0%. Esta doença carateriza-se pelo aumento dos níveis de glicose no sangue, a hiperglicemia, que se deve, à insuficiente produção de insulina e/ou, à ação insuficiente da...
Adesão à terapêutica em diabéticos do tipo 2
Ribeiro, Maria Isabel; Pinto, Isabel C.; Carvalho, C.; Martins, C.; Soares, N.; Rafael, R.Antecedentes/Objetivos: Atualmente regista-se um aumento significativo dos casos de Diabetes mellitus tipo 2 a nível mundial e em idades cada vez mais precoces (WHO, 2003; SPD, 2012). Segundo a SPD (2012), a prevalência desta patologia, em Portugal, em 2011, foi de 7,0%. Esta doença carateriza-se pelo aumento dos níveis de glicose no sangue, a hiperglicemia, que se deve, à insuficiente produção de insulina e/ou...
Peritoneal fluid changes in horses subjected to small colon distension
Faleiros,Rafael R; Macoris,Delphim G; Saquetti,Carlos Henrique C; Aita,Andrea C; Farias,Anderson; Malheiros,Euclides B; Sampaio,Ivan B.MIntestinal devitalization in cases of small colon obstruction may be difficult to detect based only in clinical signs. The purpose was to serially evaluate blood and peritoneal fluid of horses subjected to small colon distension. Seventeen adult horses were allotted in three groups. In the small colon-distended group (DG, n=7) a surgically-implanted latex balloon was inflated to promote intraluminal small colon...
Spectroscopic characterization of schiff base-copper complexes immobilized in s...
Dias,Patrícia M.; Kinouti,Lilian; Constantino,Vera R. L.; Ferreira,Ana M. D. C.; Gonçalves,Marcos B.; Nascimento,Rafael R. do; Petrilli,Helena M.Herein, the immobilization of some Schiff base-copper(II) complexes in smectite clays is described as a strategy for the heterogenization of homogeneous catalysts. The obtained materials were characterized by spectroscopic techniques, mostly UV/Vis, EPR, XANES and luminescence spectroscopy. SWy-2 and synthetic Laponite clays were used for the immobilization of two different complexes that have previously shown ...
Influência de diferentes sistemas de solvente água-etanol sobre as propriedades...
Moreira,Leonardo M.; Rodrigues,Máira R.; Oliveira,Hueder P. M. de; Lima,Adriana; Soares,Rafael R. S.; Batistela,Vagner R.; Gerola,Adriana P.This work focus on the influence of solvent on the photophysical properties of chlorophyll α and pheophytin. Both compounds are related to the photosynthesis process and are considered prototypes of photosensitizers in Photodynamic Therapy. Fluorescence measurements were developed using water/ethanol mixtures at different compositions, since both solvents could be employed in biological applications. The s...
Micronuclei induced by reverse transcriptase inhibitors in mononucleated and bi...
Lourenço,Eloir D.; Amaral,Viviane S. do; Lehmann,Mauricio; Dihl,Rafael R.; Schmitt,Virginia M.; Cunha,Kênya S.; Reguly,Maria L.; Andrade,Heloisa H.R. deThis study evaluated the clastogenic and/or aneugenic potential of three nucleoside reverse transcriptase inhibitors (zidovudine - AZT, lamivudine - 3TC and stavudine - d4T) using the cytokinesis-block micronucleus (CBMN) assay in human lymphocyte cultures. All three inhibitors produced a positive response when tested in binucleated cells. The genotoxicity of AZT and 3TC was restricted to binucleated cells sinc...
Thermal stability and thermal decomposition of sucralose
Bannach,Gilbert; Almeida,Rafael R.; Lacerda,Luis. G.; Schnitzler,Egon; Ionashiro,MassaoSeveral papers have been described on the thermal stability of the sweetener, C12H19Cl3O8 (Sucralose). Nevertheless no study using thermoanalytical techniques was found in the literature. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC) and infrared spectroscopy, have been used to study the thermal stability and thermal decomposition of sweetener.
Antinociceptive effect of the ethanolic extract of Amburana cearensis (Allemão)...
Oliveira,Rafael R. B.; Góis,Rebecca M. O.; Siqueira,Rosana S.; Almeida,Jackson R. G. S.; Lima,Julianeli T.; Nunes,Xirley P.; Oliveira,Viseldo R.The ethanolic extract of the trunk bark of Amburana cearensis (EEA) was examined for its oral (p.o.) analgesic activity at the doses of 100, 200 and 400 mg/kg body weight. In the acetic acid-induced writhing test, the EEA (200 and 400 mg/kg, p.o.) reduced the number of writhing by 33.4% and 40.7%, respectively. Additionally, EEA (100, 200 and 400 mg/kg, p.o.) decreased by 77.5%, 79.7 and 91.3%, respectively, th...
Metallochlorophylls of magnesium, copper and zinc: evaluation of the influence ...
Moreira,Leonardo M.; Lima,Adriana; Soares,Rafael R. S.; Batistela,Vagner R.; Gerola,Adriana P.; Hioka,Noboru; Bonacin,Juliano A.; Severino,DivinomarIn this study the role of different metal centers (magnesium, zinc and copper) on the enhancement of the hydrophilic character of metallochlorophylls, was evaluated. The solvatochromism as well as the aggregation process for these compounds in water/ethanol mixtures at different volume ratios were evaluated using Fluorescence, and Resonant Light Scattering (RLS) measurements, aiming to characterize the behavior...
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