Compatibility and stability of ternary admixture of midazolam, dobutamine and dopamine in 5% glucose or 0.9% sodium chloride solution

The aim of this study was to evaluate compatibility and stability of the maximum concentration used for ternary admixture containing midazolam, dobutamine and dopamine in 5% glucose and 0.9% sodium chloride solutions. The maximum concentration of each drug was 0.144 mg/ml of midazolam, 5.76 mg/ml of dobutamine and 2.88 mg/ml of dopamine in 50 ml of 5% glucose or 0.9% sodium chloride solutions. The physical compatibility of ternary admixtures was assessed using visual inspection and pH determination of ternary admixtures immediately after preparation [at 0 time] and after 24 hrs. The chemical stability was assessed using high performance thin layer chromatoghraphy [HPTLC]. The method is based on HPTLC separation of the three drugs followed by densitometric measurements of their spots at 254 nm using Camag TLC Scanner 3. The mobile phase comprised ethyl acetate: n-propanol: water: glecial acetic acid [60:24:9:3, v/v/v/v]. There were no visual changes [such as precipitation, gas evaluation or change in color] during 24 hrs after preparation of admixture. Also, there was no change in pH values of admixtures during that time. The results revealed chemical stability of midazolam, dobutamine and dopamine over the duration of mixing [24 hrs] in 5% glucose or 0.9% sodium chloride solutions

Análisis de sobrevida a 5 años de trasplante renal con donante cadáver: influencia de histocompatibilidad HLA en 100 casos / Analysis of 5 year survival of renal transplant with cadaver donor: influence of HLA histocompatibility in 100 cases

Se estudian los resultados globales de sobrevida de paciente e injerto a 5 años plazo y la influencia de la histocompatibilidad HLA en una serie de 100 trasplantes renales primarios donante cadáver. El tratamiento inmunosupresor fue Ciclosporina A, Azatioprina y Prednisona. La sobrevida actuarial a 1 y 54 años de pacientes e injerto fue del 96-91 por ciento y 71-70 por ciento respectivamente. Si bien se observó una tendencia a mejores sobrevidas para mejores compatibilidades HLA-DR, HLA B-DR y HLA A-B y DR, estos resultados no tienen significación estadística

Estudo histomorfológico do tecido conjuntivo subcutâneo do rato ao implante de pastas à base de hidróxido de cálcio, contidas em tubos de dentina humana / Histomorphologic study of the subcutaneous connective tissue reactions of rat, due to the implantation of calcium hydroxide pastes contained in human dentin tubes

Foram utilizados 36 ratos, albinos, machos, adultos jovens, divididos em 3 grupos, de 12 animais cada, agrupados inicialmente em gaiolas para 3 indivíduos. Os animais receberam implantes de tubos de dentina humana contendo as seguintes pastas: Grupo I - Hidróxido de cálcio + Polietileno glicol 400; Grupo II - Hidróxido de cálcio + Lipiodol (ultrafluido) e Grupo III - Hidróxido de cálcio + Paramonoclorofenol canforado 2,5:7,5. Decorridos os períodos de 30, 60, 90 e 120 dias, os animais foram recuperados e as áreas circunjacentes aos implantes, removidas e preparadas para estudo histológico. Os resultados microscópicos mostraram que as misturas correspondentes aos Grupos I, II e III, comportaram-se como irritantes de tecido conjuntivo subcutâneo do rato, possibilitando no entanto cápsula em colagenizaçäo progressiva no decorrer dos períodos