RESUMEN
Considering the scarcity of data on the relationship between hemoglobin, serum retinol and habitual meat consumption in the elderly, a cross-sectional population-based study was performed, which was representative of the population of a state capital in Northeastern Brazil, including 176 elderly aged between 60 and 90 years, who responded to questionnaires about habitual food consumption and socioeconomic aspects. Blood counts and serum retinol analyses were carried out. The prevalence of anemia was 9.58%, and 96% of elderly showing adequate serum retinol levels. The consumption of vitamin A and iron was adequate in 93.75% and 85%, respectively. There was no correlation between serum retinol and hemoglobin values (p=0.56), and as expected, there was a positive association between meat consumption and hemoglobin (p=0.02). Based on results obtained in this study, it was concluded that the maintenance of adequate vitamin A and meat intake in this population should be encouraged, which appears to be an effective intervention strategy to achieve appropriate serum retinol and hemoglobin values, and hence lower iron deficiency anemia rates.
Asunto(s)
Dieta , Hemoglobinas/análisis , Carne , Vitamina A/sangre , Vitaminas/sangre , Anciano , Anciano de 80 o más Años , Anemia Ferropénica/sangre , Anemia Ferropénica/epidemiología , Brasil/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Vitaminas/administración & dosificaciónRESUMEN
The aim of this study was to evaluate the relationships between fasting glucose levels, hs-CRP, BMI and serum retinol and diet in elderly people. For this study, a cross-sectional, epidemiological, population-based format was adopted. One hundred and sixty-three individuals between 60 and 90 years of age participated; the participants were from different socioeconomic and health backgrounds, except for the individuals diagnosed with diabetes. Most subjects had serum concentrations in the reference ranges for all variables. There was not a significant relationship between fasting glucose and serum retinol or diet. There was a significant correlation between hs-CRP and BMI (r=0.22, p=0.0082) and hs-CRP and total calorie intake (p=0.0091), which reinforces the notion that an increased intake of calories results in being overweight and/or obese. Considering the importance of vitamin A in various physiological processes, more studies on these relationships are necessary to establish a recommendation of vitamin A for the treatment and prevention of changes in fasting glucose and obesity in the elderly population.
Asunto(s)
Glucemia/metabolismo , Índice de Masa Corporal , Proteína C-Reactiva/metabolismo , Dieta , Vitamina A/sangre , Anciano , Proteína C-Reactiva/análisis , Estudios Transversales , Femenino , Humanos , Hiperglucemia/epidemiología , Masculino , Persona de Mediana Edad , Sobrepeso/sangre , PrevalenciaRESUMEN
Several approaches to perform assessment in training simulators based on virtual reality have been proposed. There are two kinds of assessment methods: offline and online. The main requirements related to online training assessment methodologies applied to virtual reality systems are the low computational complexity and the high accuracy. In the literature it can be found several approaches for general cases which can satisfy such requirements. An inconvenient about those approaches is related to an unsatisfactory solution for specific cases, as in some medical procedures, where there are quantitative and qualitative information available to perform the assessment. In this paper, we present an approach to online training assessment based on a Modified Naive Bayes which can manipulate qualitative and quantitative variables simultaneously. A special medical case was simulated in a bone marrow harvest simulator. The results obtained were satisfactory and evidenced the applicability of the method.
Asunto(s)
Trasplante de Médula Ósea , Simulación por Computador , Estudios de Evaluación como Asunto , Recolección de Tejidos y Órganos/métodos , HumanosRESUMEN
CyberMed is a free framework (GPL license) for the development of medical applications for simulation based on virtual reality. The framework allows to decrease development time and offers complete synchronization among several functionalities that can be selected by the programmer, as stereoscopic visualization, haptics and deformation, among others. An important feature of this framework is an online evaluation module that allows the classification of the user performance according to several simulation and interaction data. CyberMed can be used by programmers of any expertise level and offers high-level access for non-experts and low-level access for expert programmers. The low-level access allows the inclusion or extension of the framework functionalities.