1000 resultados para Alimentos, Dieta e Nutrição


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Obesity along with overweight has been considered one of the most serious public health problems in the world, especially because they are the main risk factors for many chronic diseases such as coronary heart disease, type II diabetes mellitus, hypertension and some types of tumors, which are associated with high mortality rates. The use of functional foods and appropriate diets to promote health has grown as a mechanism for prevention, control and treatment of chronic diseases such as obesity. Several ethnopharmacological studies indicate plants species for the treatment of disorders associated with obesity with a major attraction of this regimen is perceived as safer and more effective for health than the traditional treatment with appetite suppressants. Whereas both food intake and the oral treatment with different compounds can cause changes in gene expression and that a proper diet has been valuable as a mechanism for maintaining the body's vital functions, the objective of this project was to evaluate the effects of standardized extract of Brassica campestris L. in the decrease in weight and food intake control. In vivo trials of this product were conducted and studies of its effects on energy metabolism in non-obese mice and with obesity induced by hypercaloric diet. After induction of obesity by 8 weeks, animals were treated for 21 days with the extract orally. After 21 days the animals were killed and the effects of this product were evaluated on the daily feed intake and on body weight. According to the results obtained, the extract of Brassica campestris was not effective in reducing body weight of obese animals, and did not reduce food intake

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A síndrome metabólica é um mal que, segundo projeções, poderá no ano de 2010, acometer de 50 a 75 milhões de pessoas somente nos Estados Unidos. Dessa forma, é de grande interesse a implementação de procedimentos mais eficazes para prevenção e tratamento desta doença. Uma vez que existem limitações nas pesquisas com seres humanos, torna-se necessário o desenvolvimento de modelos experimentais apropriados ao estudo desta questão. Na busca de um modelo experimental adequado ao estudo do papel do exercício na prevenção e no tratamento da síndrome metabólica, o presente estudo analisou o perfil metabólico e a capacidade aeróbia de ratos mantidos com dieta rica em frutose, substrato que tem sido associado à síndrome metabólica, na vida intra-uterina e pós-natal. Foram utilizadas ratas adultas (90 dias) da linhagem Wistar, alimentadas durante a prenhez e a lactação com dois tipos de dieta: balanceada (AIN-93G) e rica em frutose (60% de frutose). Durante a amamentação, os filhotes foram distribuídos em ninhadas pequenas (4/mãe) ou adequadas (8/mãe). Após o desmame, manteve-se as mesmas dietas até os 90 dias, quando foram analisados: tolerância à glicose (teste de tolerância à glicose), sensibilidade periférica à insulina (teste de tolerância à insulina); capacidade aeróbia (determinação da máxima fase estável de lactato em natação), conteúdo pancreático de insulina; peso e concentração de lipídios totais no tecido adiposo de diferentes regiões e concentrações séricas de glicose, insulina, triglicerídeos, colesterol total, colesterol LDL, colesterol HDL. Constatou-se que a dieta rica em frutose conduziu os animais a resistência à insulina. O grupo FP apresentou dislipidemia, com aumento nas concentrações séricas de colesterol total e triglicerídeos, mostrando que o modelo animal avaliado é potencialmente interessante para o estudo da síndrome metabólica.

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Obesity along with overweight, has been considered one of the most serious public health problems in the world, especially because they are the main risk factors for many chronic diseases, such as coronary heart disease, type II diabetes mellitus, hypertension and some types of tumors, which are associated with high mortality rates. The use of functional foods and appropriate diets to call health promotion has grown as a mechanism for prevention, control and treatment of chronic diseases such as obesity. Several ethnopharmacological studies indicate plant species for the treatment of disorders associated with obesity with a major attraction of this regimen is perceived as safer and more effective health than the traditional treatment with appetite suppressants. This work aims to develop and standardize models of biological assays in stress and obesity, also aims to evaluate the effect of oil green beans of Coffea arabica in the regulation of body weight and energy balance in mice. To this end, trials were made in vivo studies of this product and their effects on energy metabolism in non-obese mice with obesity induced by hypercaloric diet. After induction of obesity by 8 weeks, animals were treated for 21 days with the extracts orally. After 21 days the animals were killed to evaluate the effects of these products on daily feed intake and on body weight. The group treated with the oil of Coffea arabica L. showed significant weight loss and feed intake high. According to the results, we conclude that the standardized extract of Coffea arabica L. decreased body weight without restriction or decrease the amount of food ingested

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The beneficial effects derived from the nutritional support in human patients and experimental animal models include the improvement of immune function, repair of wounds, answer to the treatment, time of recovery and survival. In front of these benefits, we end up alienating the nutritional needs of hospitalized patients, especially those with clinical or surgical affections threatening. The objective of the nutritional support is to indicate the importancea and the proportions of energy and nutrients that the patient can use with the maximum effectiveness. The majority of hospitalized patients do not have voluntary food intake adequate to meet even the minimal nutritional needs. It is often perceived that lack of adequate food intake, will have serious impact on the patient’s clinical outcome. The nutritional assessment will help determine which route of feeding will be the safest, most effective and best tolerated by the patient. Diet choice is based on which of the patient’s problems can and should be addressed with nutrition and the feeding access available

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The obesity has been considered one of the most serious public health problem in the worldwide scale, especially for being one of the main risk factors for many chronic diseases that characterize the metabolic syndrome. In addition to these diseases, obesity also causes dermatoses that affect not only the individual emotions but also cause various cutaneous infections. Thus, overweighting can be an agent that causes many types of stress: psychological, physical and social. In order to improve people’s life quality, several ethnopharmacological studies indicate plant species for the treatment of disorders associated with obesity due to the attraction of this regimen is perceived as safer and more health effective when compared to the treatment performed by traditional anorectic substances. If considered both food intake and also oral treatment with different compounds can promote change in the gene expression, besides an appropriate diet has been maintenance mechanism of body's vital functions. The aim of this work was to develop new standard methods for induced obesity and stress, which stress is induced through physical and psychogenic stressors in Swiss male mice. Also to evaluate the effect of supercritical extract of Physalis angulata L. on the food intake and corporeal weight loss

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The obesity along with overweight has been considered one of the most serious public health problems in the world, especially because they are the main risk factors for many chronic diseases such as coronary heart disease, diabetes mellitus, hypertension and some types of tumors, which are associated with high mortality rates. The use of functional foods and appropriate diets to promote health has grown as a prevention mechanism. Previous studies suggested Bidens pilosa L. for the treatment of disorders associated with obesity, with one important attraction of this regiment is perceived as safer and more effective health than the traditional anorexigen .The aim of this project is to standardize a new model of obesity induced by hipercaloric diet in Swiss mice, and also to evaluate the effect of Bidens pilosa L. extract in the reduction of food intake, weight and toxicity. After induction of obesity, the animals were treated for 21 days with the extract. Then the animals were killed and samples were collected for further analysis. Preliminary, the effect of this product has being evaluated on the daily food intake and body weight. In dose of 100mg/Kg, there were no significant changes in food intake and body weight. Thus, this concentration of Bidens pilosa was not effective in reducing body weight of obese animals, and did not reduce food intake

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The species Pimelodus maculatus is one of the most abundant fish in many artificial reservoirs. Shows feeding plasticity and exploits all trophic levels in aquatic ecosystems. This study aimed to analyze and compare aspects of the diet of P. maculatus in two important tributaries (Taquari and Veados rivers) in the upper Paranapanema River system, and also investigate possible differences in the condition factor using its feeding habit as reference. Samplings were carried out every three months during 2011 and 2012 in two tributaries of Jurumirim's dam. After biometric analysis, fish were dissected to remove the stomachs that were fixed in formaldehyde 10% and conserved in alcohol 70%. The stomach content was analyzed under stereomicroscope and the food items were identified until the least possible taxonomic level. The diet was characterized based on the Alimentary Index (IAi). Feeding strategy and aspects of species autoecology were evaluated by the relation between abundance of prey-specific (Pi) and occurrence frequency (Fo) of the prey, and also was calculated the niche width of Levin (B). The condition factor was also established and values obtained in samples of both rivers were compared, correlating them with diet of the species

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A large amount of external factors that can foster the emergence of free radicals in organisms has created a imminent need for understanding and technologies that enables the search of antioxidant componds and extraction of antioxidants from natural sources. These compounds have great potential for kidnapping free radicals which are highly harmful to organisms, being the principal responsible for the decrease in the shelf life of foods, and aging. These free radicals are also related to diseases such as AIDS, arthritis, diabetes, heart disease and others. Fruits and vegetables are true mines of compounds with antioxidant potential, its vitamins and phenolic compounds present an essential role in the nutrition of living beings acting as a defense against degradation of lipids and proteins, which indicates the importance of a diet rich in these nutrients, given that part of the antioxidant defenses of the body comes from the diet. This revision study aims to put in evidence the indispensable role of antioxidants in the survival of organisms.

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Pós-graduação em Enfermagem (mestrado profissional) - FMB

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Descoberta desde 1889 por Hite, a alta pressão hidrostática tem ganhado cada vez mais espaço na indústria de alimentos nos últimos vinte anos. Com todas as vantagens a ela atribuída, essa tecnologia vem para suprir um mercado onde o consumidor exige um alimento seguro e de qualidade cada vez maior. Uma alternativa aos tratamentos térmicos convencionais, a alta pressão hidrostática não somente se sobressai pela sua eficiência tecnológica, oferecendo conservação de atributos sensoriais e nutricionais dos alimentos, como é capaz de proporcionar alimentos seguros microbiologicamente, conferindo uma maior qualidade aos produtos quando comparada a outros tratamentos. Esta revisão sistemática de literatura teve como objetivo discutir a aplicação da alta pressão hidrostática na indústria alimentícia e seu papel como uma tecnologia promissora. A metodologia consistiu em selecionar textos científicos específicos sobre o assunto a partir da pesquisa bibliográfica em banco de dados eletrônicos e livros. Quatro livros e nove textos científicos foram selecionados, entre o período de 2002 e 2014. Conclui-se com esta revisão sistemática de literatura que a alta pressão hidrostática apresenta um futuro promissor na indústria de alimentos. No entanto, pesquisas são necessárias para um estabelecimento de padrões de valores atribuídos ao processo (como pressão, tempo e temperatura, por exemplo) especificamente para cada produto submetido à tecnologia