29 research outputs found
The therapeutic effect of antidisbiotic means on the mucous sheath of rats digestive tract, obtaining peroxidized sunflower oil
Aim: Determine the therapeutic effect of antidysbiosis agents (ADA) on the condition of the mucous membrane of the digestive tract when consumed per-oxidized sunflower oil (PSO).
Materials and Methods: Rats were fed 4 g / kg of PSO for 75 days. From the 31st day, they were administered one of the following ADA with 300 mg / kg of food: kvertulin (quercetin + inulin + calcium citrate), lekvin (lecithin + kvertulin) and lysozyme-forte (lysozyme + quercetin + inulin + gelatin + calcium citrate). The activity of elastase, urease, lysozyme, catalase and the content of MDA were determined in the homogenates of the mucous cheeks, small and large intestine. The ratio of catalase activity and the content of MDA was calculated by the API index, and the ratio of the relative activities of urease and lysozyme - the degree of dysbiosis.
Results: The consumption of PSO in rats in the mucous membranes of the digestive tract increases the activity of elastase, urease, MDA content and the degree of dysbiosis while reducing the activity of lysozyme, catalase and the API index. In rats treated with ADA, the activity of elastase, urease, MDA content, and the degree of dysbiosis decrease, but the activity of lysozyme and catalase increase.
Conclusion: Peroxide intoxication causes the development of mucositis, which can be prevented by antidysbiosis agents
Analysis of Natural Convection in a Low Gravity Environment
Natural convection inside a spherical container was studied experimentally with two apparatuses at low buoyancy levels. The data generated by these experiments, plotted nondimensionally as the Nusselt versus Rayleigh numbers, gives correlations for Rayleigh numbers between 103 and 108, a range which was previously untested. These results show that natural convection has significant effects at a Rayleigh number of 10\u3esup\u3e3 and higher, although the behavior of the Nusselt number as the conduction limit is approached is still unknown for a spherical geometry