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Effect of Mono- and Multichlorinated Organic Compounds-Chlorocyclohexane and Hexachloro--xylene-On the Catalytic Properties of Titanium-Magnesium Catalysts in the Homo- and Copolymerization of Ethylene with 1-Hexene.
Int J Mol Sci
September 2022
R&D Center PJSC Nizhnekamskneftekhim, 423574 Nizhnekamsk, Russia.
Ethylene polymerization and ethylene/1-hexene copolymerization over the titanium-magnesium catalytic system in the presence of chlorocyclohexane (CHC) and hexachloro-p-xylene (HCPX) has been studied. Modification of TMC with chlorocyclohexane and hexachloro-p-xylene increased catalyst activity severalfold for both ethylene polymerization and ethylene/1-hexene copolymerization. The key kinetic regularities of ethylene homopolymerization and ethylene/1-hexene copolymerization in the presence of CHC and HCPX were determined, and the copolymerization constants were measured.
View Article and Find Full Text PDF[The results of an experimental study of an anti-Opisthorchis preparation made from plant raw material].
Med Parazitol (Mosk)
February 1997
Agents and biologically active fractions derived from medical plants grown in Siberia were tested in vitro and in vivo. The extract from the aspen bark displayed the highest antiopisthorchiatic activity. This agent given at a concentration of 10(-3) caused 100% death of Opisthorchis 72 hours later.
View Article and Find Full Text PDFAntioxidative activity of ubiquinone-10, exceeding the level of that of vitamin E more than five times and anticytolytic activity of vitamin E and particularly of ubiquinone-10 manifested in decreasing activities of blood serum alanine aminotransferase and histidineammoniumlyase, which might be determined only during toxic liver damage, have been demonstrated. The activity of histidineammoniumlyase was considerably decreased under the effect of vitamin E and particularly in the presence of ubiquinone-10. Decreasing of activity of blood serum enzyme markers of cytolysis of hepatocytes is connected with the hepatocytes biomembrane stabilizing effect of antioxidants which was confirmed by the electron microscope investigation method.
View Article and Find Full Text PDFThe paper deals with follow-ups of 4 patients with chronic opisthorchiasis, two of whom were treated with chloxylum and two with bilthricide. Eight-thirty six months after discontinuation of anthelmintics, there were recurrent or enhanced complaints, repeated finding of Opisthorchis eggs and antigens in the feces. These changes were accompanied by elevated blood eosinophil counts.
View Article and Find Full Text PDFThe effects of chloxyl and praziquantel on the lipid phase of erythrocytic membranes and the antioxidative system were studied in 77 patients with opisthorchiasis. After chloxyl treatment, patients with chronic opisthorchiasis had significantly higher contents of dienic conjugates, malonic dialdehyde, Schiff bases; in blood plasma, alpha-tocopherol content had a tendency to decrease. Treatment with praziquantel caused an increase in the content of malonic dialdehyde only in the erythrocytic membrane.
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