[The effect of guanosyl-5'-monophosphate on metabolic processes in rats with experimental myocarditis].

Ten days course of 5'-GMP intramuscular administration at a dose of 25 mg/kg into rats with adrenaline-produced myocarditis led to normalization of NAD content in myocardial tissue which contributed to restoration of NAD-dependent isocitrate dehydrogenase activity. During the 5'-GMP administration content of ATP and creatine phosphate was kept at the same low level as compared with controls, while restoration of glycogen content was retarded in the heart muscle. Activity of lactate dehydrogenase and lactic acid content were not altered.

[Effect of polyene antibiotics on the development of alcoholic-dietary fatty degeneration of the liver in rats].

The effect of the sodium salts of levorin, isolevorin, nystatin and amphotericin B prepared with the use of sodium desoxycholate and amphoglucamine on the development of fatty degeneration of the liver was studied in rats. Fatty degeneration of the liver was induced in the animals by the diet deficient in choline and administration of alcohol (10 g/kg). Most of the studied antibiotics inhibited the development of the liver fatty degeneration.

[Hypocholesterinemic effect of cholesterol oxidase in the rabbit].

Cholesterol oxidase (3 beta-hydroxysteroid oxidase) from the Actinomyces lavendulae mycelium oxidizes cholesterol of blood serum in vitro. The half-inactivation time for the enzyme in blood serum (37 degrees) is 90 min. After intravenous injection of the enzyme (1--2 units per kg) to rabbits with experimental hypercholesterinemia the cholesterol content in the blood is decreased directly proportional to the single dose of the enzyme and duration of injection.

[Effect of cholesterol oxidase on the involution of experimental hypercholesterolemia in rabbits].

Cholesterol oxidase (3 beta-hydrosteroid oxidase), isolated from Actinomyces lavendulae, oxidized unesterified cholesterol in rabbit blood serum without detergents in vitro. Intravenous administration of the enzyme into hypercholesterolemic rabbits at a dose of 0.5-2.