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São Paulo; s.n; 2004. [87] p. ilus, tab, graf.
Thesis in Portuguese | LILACS | ID: lil-397856

ABSTRACT

A dieta AIN-93, recomendada para roedores, é suplementada com o aminoácido sulfurado L-cistina. Existem dúvidas quanto à necessidade dessa suplementação. Estudamos em três grupos de ratos machos Wistar, dietas sem suplementação (Ssa), suplementada com L-cistina (Cis), e suplementada com DL-metionina (Met). Comparamos peso corporal, consumo, tolerância à glicose, análises bioquímicas e leptina, nos fins do período de crescimento e manutenção, que foram semelhantes entre os grupos. Composição corporal e ensaios em adipócitos não mostraram diferença importante. Resultados mais homogêneos foram do grupo Met indicando a metionina como mais fisiológico./The AIN-93 diet, recommended for rodents, is supplemented with the sulfur amino acid L-cystine. Doubts how necessary is this supplementation exists. We study in three groups of male rats Wistar, diets without supplementation (Ssa), supplemented with L-cystine (Cis), and supplemented with DL-methionine (Met). We compare body weight, consumption, glucose tolerance, biochemical analysis and leptin, in the ends of growth and maintenance period, that had been similar between groups. Body composition and assays in adipocytes had not shown important difference. More homogeneous results had been of the Met group indicating methionine the more physiological...


Subject(s)
Animals , Male , Rats , Cystine , Dietary Proteins , Methionine , Body Composition , Body Weight , Carbohydrates/metabolism , Densitometry/methods , Liver/enzymology , Leptin/analysis , Lipids/metabolism , Rats, Wistar/growth & development , Rats, Wistar/metabolism
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