999 resultados para Cálcio na Dieta - Uso terapêutico


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Este estudo explora aspectos da dieta, área de uso e transporte dos girinos de Ameerega trivittata em uma região de floresta de terra firme na Amazônia Oriental. Nós coletamos 56 espécimes no total (48 machos e oito fêmeas), e destes 44 indivíduos de A. trivittata tiveram aferidos o seu conteúdo estomacal onde, formigas da Subfamília Myrmicinae, foi o táxon mais consumido pelos machos, e Isoptera pelas fêmeas. Isso provavelmente se deve à necessidade da aquisição de alcaloides pelos machos, presentes em formigas, que lhes dá um alto grau de toxicidade, e consequentemente, proteção, já que são os machos que realizam o cuidado parental nessa espécie, transportando os girinos para as poças. Estimamos a área de uso de quatro machos, sendo estas, em média, duas vezes maiores do que a encontrada para a mesma espécie na Amazônia Peruana. Não houve relação entre o tamanho dos machos e abundância e/ou tamanho médio dos girinos carregados e não houve relação entre a área das poças e a abundância de girinos, porém houve uma diminuição na abundância de girinos em relação à abundância de ninfas de Odonata, o que corrobora com outros trabalhos feitos para dendrobatídeos, já que estas são conhecidas por regular as populações de girinos.

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Um dos principais atributos do nicho ecológico das espécies é a ecologia trófica, que afeta a sobrevivência e tamanho das populações. Neste estudo registramos a contribuição das presas na dieta de Physalaemus ephippifer, testamos se havia variação na alimentação desta espécie de acordo com os sexos e os períodos do ano (seco e chuvoso) em três populações de P. ephippifer na Amazônia Oriental. Para isso, analisamos a dieta da espécie quanto a frequência de ocorrência das presas, amplitude e sobreposição trófica, além do índice de importância alimentar. Analisamos 102 espécimes (69 machos e 33 fêmeas), registrando que os itens mais importantes da dieta de P. ephippifer, no geral, eram cupins e formigas. Entretanto, analisando separadamente os sexos e períodos do ano os itens mais importantes na dieta das fêmeas do chuvoso foram larvas de Coleoptera, fêmeas do seco foram cupins e machos nos dois períodos foram formigas. Por se tratar de uma espécie especialista, o presente estudo evidenciou que a dieta não variou de acordo com o sexo ou períodos do ano. Por outro lado, fêmeas, principalmente do período chuvoso apresentaram larvas e cupins como presas mais importantes, sendo também mais nutritivas que a dieta dos machos, coincidindo com o período reprodutivo da espécie, onde as fêmeas necessitariam de maior quantidade de energia para produção de gametas.

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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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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 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)