RESUMEN
Adult male and female Wistar rats were fed isoenergetically for a 6 week period with a lipogenic diet containing a 20% fat mixture which caused fat-metabolism disturbance. One group consumed the mixture of sunflower oil and lard in a ratio of 0.91 P/S, the other group the interesterified form of the same mixture. The linoleic acid content of the mixtures was 0.4%. The fat mixture of the third group's diet was adjusted with soya oil to a linoleic-acid content of 0.8%. The results were compared to the control data obtained in rats fed with a normal diet. The changes in various lipid indices of the serum and the liver and the levels of some metals in the liver were analysed. It was found that; in comparison to the control on the effect of the lipogenic diet the total lipid and cholesterol contents of the serum increased significantly in all groups (a significantly higher value being observed for the females than for the males) whereas the HDL-C content decreased.(ABSTRACT TRUNCATED AT 250 WORDS)
Asunto(s)
Grasas de la Dieta/farmacología , Metabolismo de los Lípidos , Hígado/metabolismo , Errores Innatos del Metabolismo/metabolismo , Metales/metabolismo , Animales , Metabolismo Energético , Femenino , Lípidos/sangre , Hígado/efectos de los fármacos , Masculino , Tamaño de los Órganos/efectos de los fármacos , Ratas , Ratas EndogámicasRESUMEN
The authors determined the copper, zinc, chromium, cobalt, manganese, iron and nickel contents in 703 samples of animal foods (meat, offals, milk, eggs) from different parts of Hungary and of 370 samples of fruits and vegetables. Calculations based on consumption data from the Central Board of Statistics showed that the copper and iron intakes of the population are lower than those suggested the FAO/WHO. When infants are given exclusively ready-to-use baby foods produced on a milk-only basis (Hungarian products and products imported from western countries), their supply is still less favourable than that to adults. Whereas human milk meets also the requirements of trace elements optimally, ready-to-use baby foods produced on a milk-only basis supply not more than 10--15% on the required copper and 20--35% of the required iron. The authors focus attention on the risk of inadequate supply of trace elements in childhood, the negative implications of which will still manifest themselves in adulthood for a long time.