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Trans-isomers of unsaturated fatty acids are formed in fairly great amount in the process of hydrogenation of fats, e.g. in hydrogenated rapeseed oil they account for about 60«/o of the total number of double bonds. Therefore margarines and other vegetable oils of solid consistence containing plant oils partly hydrogenated contain lower or higher level of thesse isomers.The role of trans-isomers in...
Using Wistar rats the effect of exercise was studied on the level of lipid peroxides, superoxide dismutase activity in the serum and certain tissues, and the contents of triglycerides (TG), total cholesterol (TChol), cholesterol in high density lipoprotein fractions (HDL -chol and HDL3-chol) and alpha-tocopherol in the serum. Low-grade exercise decreased by about 10% the lipid peroxide level in the...
In our country rape is an oil plant grown on a large scale for food industry. It is the only oil plant giving good crops in our climate and at our soil. There is no doubt now that high-erucic acid rapeseed oil (30—50% of erucic acid) liquid or partly hardened exerts a harmful effect on the organism of many experimental animals (rats, rabbits, chickens, turkeys, guinea pigs, hamsters, mice, miniature...
In a randomly selected group of 444 men and women divided into three age groups: 35-44 years, 45-64 years and 55-64 years, the composition of fatty acids in total serum lipids was determined by gas chromatography, with particular reference to EFA (linoleic, linolenic, arachidonic acids) and the P:S index. The results showed that the levels of EFA and PUFA (all unsaturated fatty acids) were significantly...
W pracy omówiono znaczenie niklu jako niezbędnego mikroelementu dla organizmu człowieka oraz podano wyniki badań jego zawartości w całodziennych racjach pokarmowych dzieci w wieku od 3 miesięcy do 12 miesiąca oraz od 1 do 3 roku życia — otrzymanych z Państwowego Domu Małego Dziecka (PDMD), jak również racji pokarmowych młodzieży zasadniczej szkoły zawodowej (MZSZ) — mieszkającej i żywiącej się w internacie,...
Artykuł, w oparciu o wyniki wieloletnich badań i opublikowane prace, omawia najczęstsze zagrożenia zdrowotne związane z aktualnym żywieniem ludności w Wietnamie. Po zakończeniu w 1975 roku długotrwałej i wyniszczającej wojny w Wietnamie, jedną z najpilniejszych spraw była poprawa stanu odżywienia ludności. Z ostatnio przeprowadzonych badań nad sposobem żywienia i stanem odżywienia ludności wynikało,...
Przeprowadzono badania na szczurach laboratoryjnych nad przyswajaniem cynku z racji pokarmowej spożywanej przez ludzi. Racje przygotowano w laboratorium z około 70 produktów spożywczych. Poziom białka w racji wynosił około 15°/o, zawartość cynku — 15 mg 11000 g s.m. Kontrolę stanowiła dieta o zbliżonej ilości białka i cynku, źródłem białka była kazeina i gluten (1:1). Stwierdzono stosunkowo wysokie...
The effects of vegetable oils („non-erucic-acid” rapeseed oil and sunflower oil) and animal fat (butter) on the development of experimental atherosclerosis were studied in rabbits kept during 12 weeks on a cholesterol-rich diet. The degree of atherosclerotic changes by calculating planimetrically the site of the areas of fatty infiltrations in the aorta, the concentrations of total cholesterol, HDL-cholesterol,...
The composition of fatty acids of serum lipids, the levels of serum lipids (total cholesterol, LDL-cholesterol, HDL-cholesterol, VLDL-cholesterol, triglycerides), mineral components (sodium, potassium, calcium, magnesium) and antioxidant vitamins (ascorbic acid, retinol, carotene, tocopherol) were determined in men aged about 25 years. The serum of hypertensive subjects (systolic blood pressure >...
Food and nutrient goals for Polish population for the year 2000 formulated by the research workers from the National Food and Nutrition Institute and consulted with other nutrition specialists are presented. The concepts used in their preparation are described and the description of former Polish experiences in the formulation and implementations prospective food and nutrient patterns is included...
Long-term changes in the national diet and in the CHD mortality rate in Poland were examined. The level and the composition of the national diet was assessed on the basis of the food balance sheets data. Statistics of the Central Statistical Office were used to study the trends in he CHD mortality rate. The period covering 1960—1989 was considered. It was shown that the CHD mortality rate rose fivefold...
The aim of the study was to evaluate the prevalence of hyperuricaemia and gout in the population of the Tychy urban agglomeration that is only moderately exposed to ecotoxins. Energy expenditure during professional work and dietary habits were taken into account. The study was carried out in 1957 subjects, including 1391 men and 566 women, divided into 5 groups differing in the physical activity connected...
The efects were studied of the quality and amount of dietary fat on the pattern of fatty acids in the lipids of the serum and certain tissues (adipose fat, perirenal fat, liver, heart, testes) of guined pigs during experimentally induced hypercholesterolemia. During 12 weeks the animals received experimental diets containg 10% or 20% of energy from animal fats (butter, lard 2:3), sunflower oil or...
W bardzo wielu wczesnych i niedawnych programach eksperymentalnych udowodniono, że leczenie zaburzeń gospodarki lipidowej powoduje wyraźny spadek ryzyka pierwszego lub następnego zawału serca. W ostatnim dziesięcioleciu natomiast gromadzą się prace wykazujące bądź zahamowanie progresji miażdżycy wieńcowej i obwodowej u ludzi, bądź cofanie się zmian pod wpływem intensywnego postępowania hipolipemicznego...
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