Efectos del té verde en el estado nutricional del ejercicio físico; revisión sistemática

Objetivo: evaluar el efecto del té verde o sus sucedáneos en el estado nutricional de los sujetos que realizan ejercicio físico. Metodología: las palabras clave son: “green tea” AND “exercise”, en cuatro bases de datos documentales: Pubmed, EBSCOHOST, OvidSP y Proquest. Criterios de inclusión (enero de 2010 y diciembre de 2014): edad adulta de la muestra (18-65 años, OMS); consumo de una cantidad cuantificada de té verde o sucedáneos, junto con la realización de ejercicio físico medible en intensidad. Resultados: de 260 artículos, se incluyeron el 5%. En el 69% se trata de estudios con un entrenamiento diseñado, y en el 92% se ha incluido un test de ejercicio para valorar parámetros. El 77% oscilan entre 20-40 años; las muestras varían entre 9 y 36 individuos. El 69% son de larga duración. El GTE ha sido el sucedáneo más utilizado (38%). El 92% de los ensayos han obtenido algún tipo de mejora (en el 92% fue significativa). Conclusiones: se recomienda aumentar las investigaciones sobre la clasificación de los ejercicios. Las mejoras significativas en el estado nutricional de los sujetos por la ingesta del té verde o sucedáneos son: IMC, peso, IGC, MM, INM, OM y MR. El GTE ha sido el que mayores resultados satisfactorios ha proporcionado. No existe homogeneidad en los resultados significativos. Se necesitan realizar nuevos ensayos clínicos. Las diferencias entre los ensayos clínicos revisados reflejan que las mejoras encontradas en el estado nutricional de los sujetos que realizan actividad física deben ser avaladas con nuevas investigaciones. Esto ayudará a crear evidencia en este tipo de aspectos.

Nutrición enteral en el estado nutricional del cáncer; revisión sistemática

Objetivo: identificar qué efecto provoca la nutrición enteral en el estado nutricional del cáncer. Método: se realizó una búsqueda con las palabras clave “Cancer” AND “Enteral Nutrition” AND “Supplementation” en cuatro bases de datos documentales: Pubmed, EBSCO, ProQuest y Web of Science. Criterios de inclusión: edad de la muestra, mayores de 18 años; el programa de intervención incluía dieta y empleo o no de suplementación nutricional; ensayos clínicos publicados entre enero de 2004 y diciembre de 2014, en revistas científicas indexadas. Resultados: se han analizado 660 artículos, de los cuales solo han sido incluidos un 2%. El 58% de los programas de intervención son aplicados fuera de España; el 84% de las intervenciones fueron llevadas a cabo en un ambiente hospitalario; el 58% de la muestra está formada por adultos mayores de 54 años; el 33% de las intervenciones fueron multidisciplinares y su duración oscila entre 1 y 4 años. Discusión: se han encontrado pocas intervenciones a nivel nacional y se diferencian en dos tipos: fórmula enteral polimérica exclusiva o mixta junto a inmunonutrición. Conclusión: la nutrición enteral frente a la parenteral y su introducción de forma precoz mejora el estado nutricional del paciente; las fórmulas poliméricas junto a la inmunonutrición ayudan a la reducción del tiempo de hospitalización; los parámetros analíticos se muestran como un patrón de medición a la hora de valorar la mejora en el estado nutricional de los pacientes con cáncer. Se recomienda aumentar la investigación en este campo, sobre todo en niños.

Avaliação da composição corporal e do estado nutricional em doentes com neoplasias gastrointestinais : bioimpedância elétrica e tomografia axial computorizada, que correlação?

Tese de mestrado, Nutrição Clínica, Faculdade de Medicina, Universidade de Lisboa, 2015

Análise descritiva da função respiratória de adultos com fibrose quística

Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014

Uma intervenção nutricional com restrição de Fodmaps integrada no tratamento da fibromialgia : uma realidade com benefícios?

Tese de mestrado, Nutrição Clínica, Universidade de Lisboa, Faculdade de Medicina, 2016

Evolução da perceção parental da imagem corporal da criança : análise retrospetiva de dois estudos

Introdução: A obesidade é reconhecida pela OMS como um importante problema de saúde pública, que afeta adultos, crianças e adolescentes e que tem tomado proporções epidémicas em todo o mundo. Os estudos revelam que os pais, mas sobretudo as mães se mostram preocupadas e concordam com a adoção de hábitos alimentares saudáveis, no entanto a perceção que estas têm do estado nutricional dos filhos nem sempre é adequada e frequentemente a imagem corporal é distorcida, percebendo-se contudo que esta distorção tem vindo a diminuir. Foi neste âmbito que emergiu como objetivo geral deste estudo, explorar a evolução da perceção parental da imagem corporal da criança em dois estudos, estudo A (Graça Aparício) e estudo B (Graça Aparício, Madalena Cunha, João Duarte; Anabela Pereira, Jorge Bonito, Carlos Albuquerque), publicados respetivamente, em 2012 e 2013 e relacioná-la com o comportamento alimentar da criança do estudo B. Material e métodos: Este estudo de carácter retrospetivo e transversal, foi realizado com as crianças que participaram no estudo A e no estudo B, num total de 2216 crianças em idade pré-escolar, média idade= 4.51 anos (±0.97Dp), residentes as crianças do estudo A na região de Viseu e Dão e as do estudo B, nas regiões Viseu, Lamego, Vila Real, Évora e Leiria, tendo sido efetuada pelos autores originais, uma avaliação antropométrica e classificação nutricional das crianças com base no referencial NCHS (CDC, 2000). Para a recolha de dados os autores originais, utilizaram um Questionário de Caracterização Sociodemográfica das Crianças e dos Progenitores; o Questionário de Avaliação da Perceção Parental da Imagem Corporal da criança (Collins, 1991) e o Questionário de Caracterização do Comportamento Alimentar Infantil (CEBQ), traduzido e validado para a população portuguesa por Viana & Sinde (2008). Resultados: Comparativamente ao estudo A, no estudo B os pais revelaram-se significativamente mais preocupados com o estado nutricional dos seus filhos (p= 0,000). Ainda no estudo B uma maior percentagem de pais assinala as imagens representativas de pré-obesidade (27,5%) e obesidade (0,6%), comparativamente ao estudo A, onde se verifica o oposto; uma maior sinalização das crianças no grupo da normalidade e baixo-peso (56,3% e 20,4% respetivamente). Apurou-se uma diferença de médias significativa da perceção parental da imagem corporal da criança entre o estudo A e o estudo B, evidenciando a perceção dos pais, a uma maior aproximação com os valores mais elevados de IMC dos filhos, ou seja, os pais têm uma perceção menos distorcida da imagem corporal dos filhos, quando estes apresentam valores de IMC mais elevados. Relativamente ao comportamento alimentar, apesar dos comportamentos de “atração pela comida” se associarem a uma perceção parental de imagem corporal maior, e de alguns dos comportamentos de “evitamento da comida” se associarem a uma perceção parental de imagem corporal menor, a relação entre o comportamento alimentar e a perceção parental da imagem corporal criança não se revelou significativa. Conclusões: Os resultados indicam uma maior acurácia da perceção da imagem corporal dos pais ao real estado nutricional dos filhos, podendo este facto ser o primeiro passo para o seu reconhecimento do excesso de peso dos seus filhos e facilitar a adequação a um estilo de vida mais saudável entre as crianças em idade pré-escolar, e maior sensibilização da família para o controlo do excesso de peso na infância. Palavras-chave: Perceção parental, imagem corporal, Obesidade infantil.

The Diet of Preschool Children in the Mediterranean Countries of the European Union: A Systematic Review

This systematic review discusses data on the dietary intake of preschool children living in the Mediterranean countries of the European Union, including the comparison with a Mediterranean-like diet and the association with nutritional status. Specifically, data from the multinational European Identification and Prevention on Dietary and life style induced health effects in children and infants (IDEFICS) study and national studies, such as the Estudo do Padrão Alimentar e de Crescimento Infantil (EPACI) study and Geração XXI cohort in Portugal, ALimentando la SAlud del MAñana (ALSALMA) study in Spain, Étude des Déterminants pré-et postnatals précoces du développement et de la santé de l'ENfant (EDEN) cohort in France, Nutrintake 636 study in Italy, and Growth, Exercise and Nutrition Epidemiological Study in preSchoolers (GENESIS) cohort in Greece, were analyzed. In the majority of countries, young children consumed fruit and vegetables quite frequently, but also consumed sugared beverages and snacks. High energy and high protein intakes mainly from dairy products were found in the majority of countries. The majority of children also consumed excessive sodium intake. Early high prevalence of overweight and obesity was found, and both early consumption of energy-dense foods and overweight seemed to track across toddler and preschool ages. Most children living in the analyzed countries showed low adherence to a Mediterranean-like diet, which in turn was associated with being overweight/obese. Unhealthier diets were associated with lower maternal educational level and parental unemployment. Programs promoting adherence of young children to the traditional Mediterranean diet should be part of a multi-intervention strategy for the prevention and treatment of pediatric overweight and obesity.

The Portuguese National Programme for the Promotion of Healthy Eating: 2012–2015

This paper describes the first 4-year period (2012–2015) of implementation of the Portuguese National Programme for the Promotion of Healthy Eating (PNPAS). PNPAS was approved in 2012 and emerged as a preventive programme for noncommunicable diseases, aiming to improve the nutritional status of the population; it represents the first national strategy in Portugal for the promotion of healthy eating. To accomplish its mission, and taking into account its overall principles, PNPAS has five main goals: (i) to increase knowledge about the food intake of the Portuguese population and about its determinants and consequences; (ii) to modify the availability of certain foods (high in sugar, salt and fat), in schools, workplaces and public spaces; (iii) to inform and empower the population for the purchase, preparation and storage of healthy food, especially the most vulnerable groups; (iv) to identify and promote crosssectoral actions that encourage the consumption of foods of good nutritional quality in an articulate and integrated way with other sectors, namely agriculture, sport, environment, education, social security and local authorities; and (v) to improve the qualifications and conduct of the different professionals who, owing to their roles, may influence nutritional knowledge, attitudes and behaviours. The design of PNPAS followed the latest strategic lines suggested by WHO and the European Commission, proposing a crosssectoral mix of interventions to ensure physical and economic access to healthy eating by creating healthy environments and empowering individuals and communities. Several actions were implemented at different levels during the first 4-year period of implementation of PNPAS; two were especially relevant. The first concerned the empowerment of citizens regarding healthy eating, where the most important aspect was introduction of a digital strategy through development of a website and a blog dedicated to healthy eating. The second concerned the development of documents for health care and other professionals, including several guidelines in new areas, such as anthropometric measures and intervention in preobesity. Process and output indicators were defined to monitor and evaluate the programme. Among those considered as output indicators were the evaluation of childhood obesity, salt consumption and intake of breakfast by school-aged children.

Sociodemographic and clinical correlates of immune activation in postpartum HIV-1/HSV-2 co-infected Kenyan women

Thesis (Master's)--University of Washington, 2016-06

Insights on food and nutrition in the Federated States of Micronesia: a review of the literature

Background: Nutrition-related disorders, including vitamin A deficiency (VAD) and chronic diseases, are serious problems in the Federated States of Micronesia (FSM). Many suggest that these disorders are new problems related to dietary and lifestyle changes. In the past four decades, imported foods, such as white rice, flour, sugar, refined foods and fatty meats, have increasingly replaced local foods in the diet. Aim: A literature review was conducted to understand underlying issues related to dietary change and obtain insights for nutrition research and interventions. Method: Published and unpublished papers from different disciplines were reviewed and collated for information on food and nutrition in FSM. Topics covered were historical background, local foods, infant and child feeding, dietary assessment, and nutritional status. Particular focus was on information and data relating to VAD, the primary topic that led to the review of the literature. Conclusions: FSM, a tropical country of abundant agricultural resources, has suffered a great loss in production and consumption of local foods. Inconsistent external and internal government policies and food aid programmes have contributed to the problem. Further research on the nutrient content of local foods and factors affecting production, acquisition and consumption is needed, as well as a broad, well-planned, intersectoral intervention aimed at dietary improvement for all age groups in the population.

Anaemia and vitamin A deficiency in poor urban pregnant women of Bangladesh

This cross-sectional study investigated the prevalence of anaemia and vitamin A deficiency (VAD) among pregnant women in a poor urban population of Bangladesh. It also examined the association of various socio-economic and dietary factors with anaemia and vitamin A status. A maternal and child health clinic in Dhaka city, Bangladesh was used to obtain the sample. Three hundred and eighty three pregnant women, aged 20-30 years, of 20-30 weeks gestation were randomly selected from women on their first presentation for antenatal care. Socio-economic, pregnancy related information, usual dietary pattern, and anthropometric data were collected. Blood haemoglobin and serum retinol (vitamin A) concentrations were determined. About 40% of the pregnant women were anaemic (haemoglobin <11.0 g/dl) and 45% had low serum vitamin A levels (<30 mug/dl); with 8.6% having sub-clinical VAD (serum retinol <20 μg/dl). The women with low serum vitamin A levels had 1.8 times greater risk of being anaemic than did the women with normal vitamin A status. Food frequency data revealed that a large proportion of these women did not consume egg (49%), milk (25%), meat (31%), liver (83%), large fish (32%), small fish (39%) and sweet pumpkin (52%) at all; while about 25% of the women reported consuming dark green leafy vegetables (DGLV) and 64% reported an intake of fruit at least four servings a week. The pregnant women who were either illiterate or received only informal education (up to grade ten) had significantly lower haemoglobin and serum vitamin A levels compared to those who completed at least a secondary school certificate. The women whose husbands were illiterate or received only informal education had significantly (P=0.01) lower serum vitamin A levels than those whose husbands had received at least a secondary school certificate. The women who came from families with a per-capita income below the poverty line had significantly lower haemoglobin and serum vitamin A levels compared to those who came from families with a per-capita income above the poverty line. The women who consumed three servings or less of DGLV and fruit per week had significantly lower haemoglobin and serum vitamin A levels than those who consumed four or more servings a week. The women who never consumed large fish had significantly lower haemoglobin compared to those who reported at least one serving a week. Furthermore, the women who never consumed sweet pumpkin had significantly lower serum vitamin A than the women who ate at least one serving a week. By multiple regression analysis, intake of meat, DGLV and fruit, and serum vitamin A levels were found to have a significant independent relationship with haemoglobin. The overall F-ratio (9.9) was highly significant (P=0.000), the adjusted R-square was 0.086 (multiple R=0.309). Multiple regression analysis for serum vitamin A also revealed a significant independent relationship with per capita income, haemoglobin levels, intakes of DGLV and sweet pumpkin. The overall F-ratio (10.2) was highly significant (P=0.000), the adjusted R-square was 0.10 (multiple R=0.312). In conclusion, anaemia and vitamin A deficiency were highly prevalent among poor urban pregnant women in Bangladesh. Various socio-economic and dietary factors may influence the anaemia and vitamin A status of these women. The present study emphasizes the need for a comprehensive intervention strategy, which include both nutritional and environmental factors, to improve the nutritional status of this population.

Nutrient partitioning during treatment of tuberculosis: gain in body fat mass but not in protein mass

Background: Tuberculosis is an important cause of wasting. The functional consequences of wasting and recovery may depend on the distribution of lost and gained nutrient stores between protein and fat masses. Objective: The goal was to study nutrient partitioning, ie, the proportion of weight change attributable to changes in fat mass (FM) versus protein mass (PM), during anti mycobacterial treatment. Design: Body-composition measures were made of 21 men and 9 women with pulmonary tuberculosis at baseline and after 1 and 6 mo of treatment. All subjects underwent dual-energy X-ray absorptiometry and deuterium bromide dilution tests, and a four-compartment model of FM, total body water (TBW), bone minerals (BM), and PM was derived. The ratio of PM to FM at any time was expressed as the energy content (p-ratio). Changes in the p-ratio were related to disease severity as measured by radiologic criteria. Results: Patients gained 10% in body weight (P < 0.001) from baseline to month 6. This was mainly due to a 44% gain in FM (P < 0.001); PM, BM, and TBW did not change significantly. Results were similar in men and women. The p-ratio decreased from baseline to month 1 and then fell further by month 6. Radiologic disease severity was not correlated with changes in the p-ratio. Conclusions: Microbiological cure of tuberculosis does not restore PM within 6 mo, despite a strong anabolic response. Change in the p-ratio is a suitable parameter for use in studying the effect of disease on body composition because it allows transformation of such effects into a normal distribution across a wide range of baseline proportion between fat and protein mass.

Impact of premorbid undernutrition on outcome in stroke patients

Background and Purpose - To assess the prevalence of premorbid undernutrition and its impact on outcomes 1 month after stroke. Methods - The study recruited from consecutive stroke admissions during a 10-month period. Premorbid nutritional status ( using the subjective global assessment [SGA]), premorbid functioning ( modified Rankin scale [MRS]), and stroke severity ( National Institutes of Health Stroke Scale [NIHSS] score) were assessed at admission. The associations between premorbid nutritional status, poor outcome ( defined as MRS greater than or equal to 3), and mortality were examined before and after adjustment for confounding variables, including age, gender, stroke risk factors, stroke severity, and admission serum albumin. Results - Thirty of 185 patients were assessed as having undernutrition at admission. Significant unadjusted associations were observed between undernutrition and poor outcome (odds ratio [OR], 3.4; 95% CI, 1.3 to 8.7; P = 0.01), and mortality (OR, 3.1, 95% CI, 1.3 to 7.7; P = 0.02) at 1 month. NIHSS, age, and premorbid MRS were also significantly associated with poor outcomes. After adjustment for these factors, the effect size of associations remained important but not significant ( poor outcome: OR, 2.4; 95% CI, 0.7 to 9.0, P = 0.18; mortality: OR, 3.2; 95% CI, 1.0 to 10.4, P = 0.05). Conclusions - Premorbid undernutrition, as assessed using the SGA, appears to be an independent predictor of poor stroke outcome. Stroke prevention strategies should target undernutrition in the population at risk for stroke to improve outcomes.

Prediction of total body water in infants and children

Background: In paediatric clinical practice treatment is often adjusted in relation to body size, for example the calculation of pharmacological and dialysis dosages. In addition to use of body weight, for some purposes total body water (TBW) and surface area are estimated from anthropometry using equations developed several decades previously. Whether such equations remain valid in contemporary populations is not known. Methods: Total body water was measured using deuterium dilution in 672 subjects (265 infants aged < 1 year; 407 children and adolescents aged 1-19 years) during the period 1990-2003. TBW was predicted (a) using published equations, and (b) directly from data on age, sex, weight, and height. Results: Previously published equations, based on data obtained before 1970, significantly overestimated TBW, with average biases ranging from 4% to 11%. For all equations, the overestimation of TBW was greatest in infancy. New equations were generated. The best equation, incorporating log weight, log height, age, and sex, had a standard error of the estimate of 7.8%. Conclusions: Secular trends in the nutritional status of infants and children are altering the relation between age or weight and TBW. Equations developed in previous decades significantly overestimate TBW in all age groups, especially infancy; however, the relation between TBW and weight may continue to change. This scenario is predicted to apply more generally to many aspects of paediatric clinical practice in which dosages are calculated on the basis of anthropometric data collected in previous decades.