N Ia Golovenko

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A study was made of the time course of alterations in the convulsant activity of corazol after injection to mice of 1,4-benzodiazepine derivatives with different chemical structure. Significant anticonvulsant effect of benzodiazepines was observed for 5--120 minutes and was regarded a dynamic index. The maximal action of the drugs was observed within 15--30(More)
Tetraphenyl porphyrin (TPP) and its complexes with Fe3+, Co2+, Cu2+, Zn2+ and Ni2+ inhibited cytochrome P-450-dependent enzymes in rat liver microsomes. Content of cytochrome P-450 was decreased by 27% or 49% depending on the substance administered (TPP or its metal complexes, respectively). N-demethylase was inactivated by about 30%; the rate of aniline(More)
Antiviral and interferon inducing activity of the amixine and its some derivatives, as well as their influence on the proteolytic enzymes activity, monooxygenase activity of the microsomal fraction, level of the lipids peroxidation were studied. Lack of correlation between antiviral and interferon inducing activity in the investigated series of compounds(More)
In comparison with the literature data the pharmacological effects of muscimol (MS) on mice organism were studied under the condition of administration of the exogenic ligands of GABA-receptor complex GABA antagonist bicuculline (BC), chloride ionophor blocking agent pentylenetetrazole (PZ), phenazepam (BD), sodium barbital (BB) and GABA synthesis(More)
The kinetic parameters of two monoxygenase (N-demethylase and benzo(a)pyrene hydroxylase) reactions occurring in murine immunocompetent cells were determined. It was shown that the pH optimum for macrophage enzymes lies at 7.4, whereas that for thymocytes and spleen cells at 8.5. The effects of cytochrome P-450 inhibitors (methyrapone, SKF-525A, tilorone)(More)
The types of the interaction of the pharmacological effects of ethanol and barbiturate antagonists--picrotoxin, bemegride and corasol--were determined. The effect of ethanol was determined as competitive--for the convulsant effects of bicuculline, and non-competitive--for the effects of thiosemicarbazide. The indices of the anticonvulsant effects of(More)
Aromatic hydroxylation and oxidation of heterocyclic molecule of phenazepame were studied. The reaction of aromatic hydroxylation prevailed in microsomes of intact animals, whereas preinduction of rats using phenobarbital and 3-methylcholanthrene altered the phenazepame metabolism increasing the rate of oxidation in the heterocyclic ring. Kinetic parameters(More)
Activity of mice hepatocyte monooxygenases was studied in dynamics of immune response to administration of sheep erythrocytes and phytohemagglutinin. During the primary and secondary immune response the antigen inhibited activity of cytochrome P-450-dependent reactions (N-demethylase and p-hydroxylase), which was apparently due to synthesis of interferon.(More)
Content of 14C-phenazepame and its metabolites was studied in feces and urine of mice strains C57BL/6 and BALB/ c after intraperitoneal administration of the preparation at a dose of 14 mg/kg. Concentration of phenazepame and of its trihydroderivative was higher in urine of the BALB/c strain mice than in C57BL/6 strain that corresponded to genetic(More)