Navegando por Palavras-chave "adolescent nutrition"
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- ItemAcesso aberto (Open Access)Avaliação dos conteúdos relacionados à nutrição contidos nos livros didáticos de biologia do ensino médio(Sociedade de Pediatria de São Paulo, 2011-12-01) Teixeira, Tatiana Cristina [UNIFESP]; Sigulem, Dirce Maria [UNIFESP]; Correia, Ingrid Chaves; Universidade Federal de São Paulo (UNIFESP)OBJECTIVE:To analyze the nutrition-related issues of high school Biology textbooks by comparing the available information with the current knowledge. METHODS: A cross-sectional descriptive study was undertaken to evaluate all the Biology textbooks recommended by the Ministry of Education for high school classes. The data collection was performed by a structured assessment tool to evaluate the content of each book. The content was classified as sufficient, when all the variables analyzed were presented in the textbooks and in consonance with the current scientific literature; insufficient, when they were partially presented in the textbooks and in consonance with current scientific literature; absent, when the content was not available in the textbook. Variables available but outdated or incorrect were individually and descriptively assessed. The content analysis technique was employed in the present study. RESULTS: All the textbooks had nutrition-related information. However, most of them were insufficient to promote awareness of food choices and/or change of lifestyle. The following information was not available in the books: vitamin A and folate deficiency (100%), anemia due to iron deficiency (89%), obesity, iodine deficiency and food pyramid (78%). CONCLUSIONS: The insertion of nutritional education in the academic curriculum and the periodical review of nutrition-related issues presented in the textbooks may help the prevention of health problems among children and youth.
- ItemSomente MetadadadosZinc nutritional status and its relationships with hyperinsulinemia in obese children and adolescents(Humana Press Inc, 2004-08-01) Marreiro, DDN; Fisberg, Mauro [UNIFESP]; Cozzolino, SMF; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP); Sao Marcos UnivA perturbation of zinc metabolism has been noted in subjects with obesity. the present work intends to investigate whether the zinc nutritional status is associated with hyperinsulinemia in obesity. A study was carried out in a group of obese children and adolescents (n=23) and compared to a control group (n=21), both between 7 and 14 yr of age. Software analyzed diet information from 3-d food records. Body composition was evaluated by body mass index (BMI), bioelectrical impedance, and skin-fold measurements. Zinc nutritional status was evaluated by Zn determination in plasma, erythrocyte, and 24-h urine, by atomic absorption spectrophotometry (lambda=213.9 nm). Insulin was measured by radioimmunoassay (Linco Res). Diets consumed by both groups had marginal concentrations of zinc. Zinc concentrations in plasma and erythrocytes were significantly lower in the obese group. Urinary zinc excretion and serum insulin were significantly higher in the same group, although the insulinemia and the parameters of zinc nutritional status were not significantly correlated. As a result, considering that zinc is part of the synthesis and secretion of this hormone, an assessment is necessary of the possible participation of the oligoelement in the mechanisms of insulin resistance, commonly present in obese patients.
- ItemSomente MetadadadosZinc nutritional status in obese children and adolescents(Humana Press Inc, 2002-05-01) Marreiro, Dilina do Nascimento; Fisberg, Mauro [UNIFESP]; Cozzolino, Silvia Maria Franciscato; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP); Sao Marcos UnivStudies in animals and humans have corroborated that zinc (Zn) metabolism is altered in obesity. The present work intends to evaluate the Zn nutritional status in obese children and adolescents by the determination of some biochemical parameters and analyses of the diets. The investigation was carried out in a group of obese children and adolescents (n = 23) and compared to a control group (n = 21), both between 7 and 14 yr of age. A software analyzed diet information from 3-d food records. Body composition was evaluated by body mass index, bioelectrical impedance, and skinfold measurements. Zinc nutritional status was evaluated by Zn determination in plasma, erythrocyte, and 24-h urine, by atomic absorption spectrophotometry (lambda = 213.9 nm). Diets consumed by both groups had marginal concentrations of zinc. Zinc concentrations in plasma and erythrocytes were significantly lower in the obese group. Urinary zinc excretion was significantly higher in the same group. The results allowed one to conclude that zinc nutritional status in obese individuals is altered.