We studied effects of natural (alpha-tocopherol) and synthetic (ionol) antioxidants on lipid peroxidation (LPO) in the liver of dogs with acute experimental pancreatitis (AEP). In the first three ...days of experiment formation of DK was more strongly inhibited by alpha-tocopherol but after day 6--by ionol. Alpha-tocopherol more effectively inhibits formation of intermolecular connections of lipid peroxides at transition of DK in intermediate (MDA) and end-products of POL. Ionol shows this effect on hour 8-24 and day 6-20. Fat-soluble antioxidants act directly in the lipid bilayer of plasma and cell membranes by interacting with membrane lipophilic components.
Three-jet production in deep inelastic ep scattering and photoproduction was investigated with the ZEUS detector at HERA using an integrated luminosity of up to 127 pb super(-1). Measurements of ...differential cross sections are presented as functions of angular correlations between the three jets in the final state and the proton-beam direction. These correlations provide a stringent test of perturbative QCD and show sensitivity to the contributions from different color configurations. Fixed-order perturbative calculations assuming the values of the color factors C sub()F C sub(A), and T sub()Fas derived from a variety of gauge groups were compared to the measurements to study the underlying gauge group symmetry. The measured angular correlations in the deep inelastic ep scattering and photoproduction regimes are consistent with the admixture of color configurations as predicted by SU(3) and disfavour other symmetry groups, such as SU(N) in the limit of large N.
Experimental animals were fed with semisynthetic rations with sugar-containing powder (40% of carbohydrate energy value) during 10 months. It has been found that this ration does not influence the ...levels of glucose in the blood, glycogen in the liver, and the content of triglycerides, total cholesterol and alpha-lipoprotein cholesterol in the blood serum. Similar quantity of refined sugar in the ration led to elevation of the levels of glucose in the blood, of triglycerides and total cholesterol in the blood serum by the end of the experiment. Correlation between biochemical and morphological investigation data has been recorded.
A trial has been performed of a new sweetening agent saccharol, glycosides complex, on energy metabolism in rats with experimental alloxan diabetes. Elevated glucose level observed in rats with ...insulin insufficiency was associated with hexokinase activity inhibition and changes in the activity of the enzymes involved in glucose-6-phosphate transformation: enhanced activity of glucose-6-phosphatase and glucose-6-phosphate dehydrogenase against inhibition of phosphoglucomutase activity. Introduction of saccharose aggravated the above shifts in the rat liver, whereas saccharol possesses a protective action on hexokinase hepatic reaction and enzymes of glucose-6-phosphate conversion, reduced blood glucose. Positive changes induced by saccharol on energy metabolism in animals with insulin insufficiency can be attributed to the effect of saccharol glycosides.
Chemical composition, energy value and 137Cs and 90Sr content in daily diets were assessed in rural population from the region controlled after the Chernobyl accident. As shown by low urine excretion ...of vitamins (thiamine, ascorbic acid, riboflavin, N1-methylnicotinamide), the population suffer from vitamin deficiency, especially in winter and spring. Levels of the radionuclides rose 1.3-19.7 and 3.4-24.8-fold for 137Cs and 90Sr, respectively.
PDF
