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The main interest of the present study was to determine possible alterations in fatty acid composition in rat plasma and liver phospholipids (PL) caused by chronic ethanol consumption, diazepam treatment and chronic consumption of alcohol and diazepam together. Chronic ethanol consumption (11 g/kg/d) elevated the proportion of plasma saturated (SFA) and mono-unsaturated fatty acids (MUFA), and decreased the most important polyunsaturated fatty acids (PUFA) in plasma and liver PL. The alterations in fatty acid composition in liver PL indicate that ethanol can change the composition of cell membrane lipids. Diazepam treatment (10 mg/kg/d) elevated the contents of SFA and MUFA in plasma PL. On the other hand, diazepam produced a drastic decrease in 22:6n-3 docosahexaenoic acid (DHA) in plasma and liver PL. These changes in plasma PL fatty acid composition indicated a disturbance of fatty acid metabolism. The changes in fatty acid contents of plasma and liver PL were the greatest in rats treated with a combination of ethanol and diazepam, in which there was a summation of the effects of ethanol or diazepam alone, and the effects were intensified by an ethanol-diazepam interaction.

The primary objective of our research was to investigate the nutritional status in Belgrade schoolchildren (aged 12-15). The second objective was to compare the children and parents view about the children nutritional status. The study was carried out in two phases: (a) questionnaires for children and parents (questionnaire-c and questionnaire-p) were administrated; (b) anthropometrical measurement was conducted among children. There were 2263 participants, randomly chosen from seven Belgrade (Serbia and Montenegro) primary schools. At the end of the study, 1555 children completed the questionnaires and had been measured. According to our results, there were 18.1% boys and 11.3% girls who were overweight/obese. Children were more objective in estimating their nutritional status than their parents. Although the participants were offered free counselling, low response rate of only 4.71% was achieved, suggesting that parents should take an active and unbiased role in children's nutritional education.

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