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1.
Can J Diet Pract Res ; 72(1): 24-30, 2011.
Artigo em Francês | MEDLINE | ID: mdl-21382228

RESUMO

A review of the literature reveals that there are currently no tools available to analyze the quality of the menus provided in daycare centres. An analysis grid has been developed for this purpose, specifically targeting the food served to preschool children aged 18 months and over. The tool was produced on the basis of findings from recent scientific research. The final version of the grid features 25 statements that cover types of menus, the food groups and recommendations of Canada's Food Guide, sources of protein, the supply of beverages,processed foods, cariogenic products, nutritional variety,allergens and sensory properties of foods. The data gathered using this grid will help establish recommendations for daycare administrators and kitchen managers with respect to various considerations that are key to promoting healthy eating habits in early childhood. The limitations to its use stem from the need to complement these recommendations by conducting an analysis of the recipes and ingredients used, the beverages served and the portion sizes offered.


Assuntos
Creches , Dieta/normas , Serviços de Alimentação , Política Nutricional , Canadá , Pré-Escolar , Feminino , Promoção da Saúde , Humanos , Lactente , Masculino , Controle de Qualidade
2.
J Nutr Biochem ; 14(1): 40-8, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12559476

RESUMO

Dietary lecithin can stimulate bile formation and biliary lipid secretion, particularly cholesterol output in bile. Studies also suggested that the lecithin-rich diet might modify hepatic cholesterol homeostasis and lipoprotein metabolism. Therefore, we examined hepatic activities of 3-hydroxy-3 methylglutaryl coenzyme A reductase "HMG -CoA reductase", cholesterol 7 alpha-hydroxylase and acyl-CoA: cholesterol acyltransferase "ACAT" as well as plasma lipids and lipoprotein composition in rats fed diets enriched with 20% of soybean lecithin during 14 days. We also evaluated the content of hepatic canalicular membrane proteins involved in lipid transport to the bile (all P-glycoproteins as detected by the C 219 antibody and the sister of P-glycoprotein "spgp" or bile acid export pump) by Western blotting. As predicted, lecithin diet modified hepatic cholesterol homeostasis. The activity of hepatic HMG-CoA reductase and cholesterol 7 alpha-hydroxylase was enhanced by 30 and 12% respectively, while microsomal ACAT activity showed a dramatic decrease of 75%. As previously reported from ACAT inhibition, the plasma level and size of very low-density lipoprotein (VLDL) were significantly decreased and bile acid pool size and biliary lipid output were significantly increased. The canalicular membrane content of lipid transporters was not significantly affected by dietary lecithin. The current data on inhibition of ACAT activity and related metabolic effects by lecithin mimic the previously reported effects following drug-induced inhibition of ACAT activity, suggesting potential beneficial effects of dietary lecithin supplementation in vascular disease.


Assuntos
Colesterol/metabolismo , Lipídeos/sangue , Fígado/metabolismo , Fosfatidilcolinas/farmacologia , Óleo de Soja/farmacologia , Acil Coenzima A/metabolismo , Animais , Bile/química , Transporte Biológico/efeitos dos fármacos , Western Blotting , Colesterol 7-alfa-Hidroxilase/metabolismo , Hidroximetilglutaril-CoA Redutases/metabolismo , Lipoproteínas/sangue , Fígado/enzimologia , Masculino , Microssomos Hepáticos/enzimologia , Ratos , Ratos Sprague-Dawley , Esterol O-Aciltransferase/metabolismo
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