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2.
Rev. bras. cir. plást ; 26(3): 394-401, July-Sept. 2011. ilus, tab
Article in English, Portuguese | LILACS | ID: lil-608195

ABSTRACT

BACKGROUND: The differences between fetal and adult scars suggest the possibility of manipulating skin scarring outcomes. This study aimed to assess whether the use of adult stem cells from adipose tissue is beneficial to skin healing. METHODS: This was a randomized controlled study for which 18 patients were selected based on inclusion and exclusion criteria. The adult stem cells used were autologous and were extracted from infraumbilical adipose tissue prior to abdominoplasty. These cells were implanted into the surgical wound dermis in the suprapubic region before skin synthesis. The results were assessed blindly based on the Draaijers scale by three physicians and by the patients themselves in a self-assessment. Photometric assessment by digital photography was also performed. RESULTS: Among the 18 operated patients, considering the surgical result, 17 (94.4 percent) had excellent or good results and one (5.5 percent) had wound dehiscence, which was considered a bad result. Considering skin healing in the searched area, there was no statistically significant difference in the photometric evaluation; in both the self-assessment by the patients and the physicians' assessment, the results were significantly in favor of intervention with stem cells (P = 0.12 and P = 0.003, respectively). Consideration of all assessments (physicians, patients and photometric) found a statistically significant difference in favor of the implantation of adult stem cells from adipose tissue (P <0.001). CONCLUSIONS: Skin healing results after implantation of adult stem cells derived from adipose tissue were satisfactory.


INTRODUÇÃO: Fatores que diferenciam a cicatrização fetal e a do adulto instigam a possibilidade de manipulação das soluções de continuidade da pele. Este estudo teve como objetivo avaliar se o uso de células-tronco adultas do tecido adiposo é benéfico à cicatrização da pele. MÉTODO: Estudo controlado, randomizado, para o qual foram selecionadas 18 pacientes, considerando-se critérios de inclusão e exclusão. As células-tronco adultas utilizadas eram autólogas, extraídas do tecido adiposo da região infraumbilical, precedendo a realização da abdominoplastia. Essas células, antes da síntese da pele, foram implantadas na derme da ferida operatória, na região suprapúbica. A avaliação dos resultados foi realizada com base na escala de Draaijers, por três avaliadores médicos cegados, e pelas próprias pacientes, por autoavaliação. Foi realizada, também, avaliação fotométrica por fotografia digital. RESULTADOS: Dentre as 18 pacientes operadas, sob o ponto de vista cirúrgico, 17 (94,4 por cento) apresentaram resultados excelentes ou bons e uma (5,5 por cento) apresentou deiscência de sutura, considerado mau resultado. Quanto à cicatrização da pele na área pesquisada, à avaliação fotométrica, não houve diferença estatisticamente significante; à autoavaliação pelas pacientes, os resultados atingiram nível de significância a favor da intervenção com células-tronco (P = 0,12); e à avaliação pelos médicos, foi atingido nível de significância a favor da intervenção por células-tronco (P = 0,003). Considerando-se todas as avaliações realizadas (médicos, pacientes e fotométrica), foi encontrada diferença estatisticamente significante favorável ao implante de células-tronco adultas do tecido adipose (P < 0,001). CONCLUSÕES: Os resultados da cicatrização da pele, após implante de células-tronco adultas derivadas de tecido adiposo, foram satisfatórios.


Subject(s)
Humans , Female , Adult , Middle Aged , History, 21st Century , Photometry , Skin , Wound Healing , Adipose Tissue , Evaluation Study , Abdomen , Adult Stem Cells , Abdominoplasty , Photometry/methods , Skin/injuries , Adipose Tissue/surgery , Adipose Tissue/transplantation , Adult Stem Cells/transplantation , Abdominoplasty/methods , Abdomen/surgery
4.
Nutrire Rev. Soc. Bras. Aliment. Nutr ; 31(2): 61-73, 2006. tab
Article in Portuguese | LILACS | ID: lil-455668

ABSTRACT

Twenty-nine fruits commonly consumed in Brazil were analyzed for mineral composition. Na and K levels were determined by flame photometric procedure and Ca, Mg, Fe, Zn, Cu and Se levels by atomic absorption spectrometry, with organic matter wet oxidation. The results were compared with data from Mexican, American and Brazilian food chemical composition tables. Each fruit was classified as a source of Ca, Mg, Fe, Zn, Cu and Se or not a source of such elements, according to the DRI (Dietary Reference Intakes) and also as a source of Na and K or not a source of such elements according to the RDA (Recommended Dietary Allowance). In general, the mineral levels were lower than those resented in the Brazilian table and there were small differences between the data obtained in this study and the values reported in the literature


Subject(s)
Food Analysis , Food Composition , Fruit , Minerals , Spectrophotometry, Atomic/methods , Photometry/methods
5.
Cuad. Hosp. Clín ; 51(1): 19-26, 2006. tab, graf
Article in Spanish | LILACS | ID: lil-785472

ABSTRACT

Pregunta de Investigación.- ¿Cuál de los métodos empleados es más sensible y especifico para la determinación de sodio y potasio en suero humano?. Objetivo. Determinar la sensibilidad y especificidad de los métodos: Fotometría de emisión a la Llama, Espectrofotometría Visible-UV; Espectroscopia de Absorción Atómica y potenciometria de Ion Electrodo Selectivo, por análisis de la concentración de Sodio y Potasio en el suero humano. Diseño de Investigación. Método de Test Diagnóstico Lugar. Laboratorios del Instituto de Gastroenterológico Boliviano Japonés por instrumentación de la Facultad de Ciencias Farmacéuticas y Bioquimicas, Carrera de Ciencias Químicas de la Facultad de Ciencias Puras y Naturales de la UMSA y Hospital Juan XXIII de la ciudad de La Paz. Población.- 112 muestras de pacientes de ambos sexos sanos y enfermos. Métodos.- Se determinó la concentración de Sodio y Potasio en suero humano mediante Fotometría de Emisión a la Llama, Espectroscopia de Absorción Atómica é Ion Electrodo Selectivo y con el Kit de Teco Diagnostic para Fotometria VIS. Se realizo el control de exactitud en todos los procedimientos. Se calculó medidas de tendencia central, Sensibilidad, especificidad, Valores predictivos positivo y negativo y test de correlación...


Research question¿ Which of the methods used is the most sensitive and specific for the Sodium and Potassium detemination in human serum? Objetive To determine the Sensibility and Specificity of the methods : Emission to the Flame Photometry, Visible Spectrophotometer, Atomic Absorption Spectroscopy and Ion Electrode Selective for the analysis of Sodium and Potassium concentration in human serum.DesignDiagnostic Test...


Subject(s)
Humans , Male , Female , Adult , Spectrophotometry, Atomic/instrumentation , Potassium/urine , Sensitivity and Specificity , Sodium/urine , Photometry/methods , Potassium/blood , Sodium/blood , Clinical Laboratory Techniques/methods
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