Changes in the intake of vitamins and minerals by men and women with hyperlipidemia and overweight during dietetic treatment.

OBJECTIVES: To assess the influence of a low-fat, low-energy diet on the intake of vitamins and minerals in patients with overweight and hyperlipidemia. SETTING: Outpatient clinic for hyperlipidemia treatment. SUBJECTS: A total of 134 subjects chosen from patients attending Outpatient Clinic of Metabolic Diseases. INTERVENTIONS: Patients were assigned to a hypolipidemic, low-energy diet of 4.18-6.27 MJ/day (1000 or 1500 kcal/day), where fat provided less than 30% of energy, saturated fatty acids less than 10% of energy and daily supply of cholesterol was below 300 mg. Dietary assessment with the use of 3 days dietary records were performed at baseline and after 8 weeks of the diet. RESULTS: The implementation of a low-fat, low-energy diet resulted in a decrease of the intake of nutrients assessed, statistically significant for phosphorus, magnesium, iron and vitamin B(1), B(2) and niacin in men and for iron in women. No marked and statistically significant reduction in the percentage of the RDA was found, except magnesium, thiamin and riboflavin in men and iron in women. Nutritional density was statistically improved for phosphorus, potassium, magnesium and vitamins E, C and B(6) in men and for all nutrients assessed in women. CONCLUSIONS: In comparison with a habitual diet, the low-fat, low-energy diet did not cause any marked and statistically significant decrease in the intake of minerals and vitamins or in the adherence to the RDA, with the exception of magnesium, thiamin and riboflavin in men and iron in women.

[Analysis of the effect of selected polymers on morphodynamic features of cells in Blepharisma undulans]. / Analiza wplywu wybranych polimerow na cechy morfodynamiczne komórki pierwotniaka Blepharisma undulans.

The studies presented enable to evaluate the survival rate of the protozoa in contact with the studied polymers (foils: with polyethylene PE, polyvinyl chloride P-25, P-47, polyester E1 and irradiated collagen L7). It can also be established whether the change of certain morphodynamic parameters could be used to evaluate biological usefulness of plastics. Stereometric method and factor analysis were used in the studies. On the basis of the obtained data polyvinyl chloride P-47 was well assessed, while irradiated collagen L7 showed most negative features.