[The effect of bromocryptin on rotational activity in rats]. / Vliianie bromokriptina na rotatsionnuiu aktivnost' krys.

The experiments were made in rats with unilateral lesion to the nigrostriatal tract, which was induced by the highly active dopaminergic neurotoxin 1-methyl-4-phenyl-pyridinium. The rotational activity of rats was evaluated after intragastric and subcutaneous bromocryptine given in a single dose of 10 mg/kg and 25 mg/kg one, two, three and four times. The highest effect of the drug was seen when it was used in the maximum dose of 25 mg/kg, but when the agent is repeatedly given in the above dose, it failed to enhance the rotational activity of rats. The findings may provide evidence for possibilities of increasing the doses of bromocryptine in practical medicine, and for designing the injectable dosage form of the drug.

[Pharmacodynamics and results of a clinical trial of nitrogranulong, a new Soviet long-acting preparation of nitroglycerin]. / Farmakodinamika i rezul'taty klinicheskogo izucheniia nitrogranulonga--novogo otechestvennogo prolongirovannogo preparata nitroglitserina.

In the USSR, the Research and Production Association "Vitamins" and the Department of Pharmacology, All-Union Research Institute of Medicinal Plants were the first to develop commercial processes for manufacturing trinitroglycerol microgranules on the basis of the raw material available in this country and to design the new long-acting drug Nitrogranulong. Experimental examinations revealed that Nitrogranulong showed the same bioavailability as Nitro-Mack-Retard and sustac, produced a prolonged coronarolytic effect, and caused the hemodynamic and ECG changes typical of trinitroglycerol. The agent was found to be low toxic and well tolerated in a dosage form. Clinical examination of 467 patients indicated that Nitrogranulong exhibited the same antianginal potency, but in some cases it was superior to sustac, nitrong, 2% nitroglycerin ointment, and nitrosorbide. The agent caused significantly less adverse and toxic effects. Nitrogranulong is used in medical practice to prevent anginal episodes. It is produced in tablets in two dosages (2.9 and 5.2 mg trinitroglycerol), its action duration being 7-8 hours.

[Arfazetin in the treatment of diabetes mellitus]. / Arfezetin v lechenii sakharnogo diabeta.

Hypoglycemic activity of arfazetin, a Soviet antidiabetic species of medicinal plants, was studied in 32 patients with diabetes mellitus, types I and II. Arfazetin was administered to patients with diabetes mellitus, type I, in combination with a diet and an adequate dose of insulin. All the patients with diabetes mellitus, type II, were given infusion in addition to a diet and hypoglycemic drugs. The conclusions were the following. The species possessed hypoglycemic activity. In patients with diabetes mellitus, type II, it made it possible to decrease or even give up a daily dose of hypoglycemic drugs per os. In patients with diabetes mellitus, type II, arfazetin produced no significant effect on the level of hypoglycemia. The optimum daily dose of arfazetin was 1 glass of infusion prepared ex tempore out of 5 g of dried species to be taken 30 min. before meal (one-third of glass) 3 times a day for one month.

[Pharmacological properties of the new antiviral preparation alpizarin]. / Farmakologicheskie svoistva novogo protivovirusnogo preparata alpizarina.

Various species of experimental animals were used for studying pharmacological properties of a new original antiviral (antiherpetic) agent alpizarin (2-beta-C-D-glucopyranosyl-1,3,6,7-tetrahydroxyxanthone; with composition of C19H18O11) isolated from the aerial part of Hedysarum flaveacens Rgl. and Schmalh., Hedysarum alpinum L. It was found that in addition to the antiviral effect, alpizarin possesses also prominent cardiostimulant, capillary-strengthening, anti-inflammatory properties and enhances reparative processes in the gastric mucosa. The drug has no significant action on the central nervous system, the tone of peripheral vessels and intestinal smooth musculature and fails to influence carbohydrate metabolism and blood coagulation system.

[The effect of ratibol, retabolil and solasodin on the blood coagulation system]. / Vliianie ratibola, retabolila i solasodina na sistemu svertyvaniia krovi.

It has been established that ratibol, retabolil and solasodin in doses 5 and 10 mg/kg proved to have a slight anticoagulative effect. The same effect has been observed during 20 days of oral retabolil and solasodin intake. Ratibol was characterized by a two-step action. All three steroids activated factors II, VII, XIII and diminished factor I concentration. These changes were accomplished with the fall of antithrombin activity and decrease in resistance to streptokinase. The fibrinolysis level has been raised under the effect of the steroids studied.

[Asarone and its biological properties]. / Azaron i ego biologicheskie svoistva.

In acute and chronic experiments on mice, rats, cats and rabbits in a wide range of tests, a study was conducted of the biological properties of alpha-asarone (1-propenyl-2,4,5- methoxybenzol)--etherophenol, isolated by the authors from the roots of Asarum europaeum. It was determined that the LD50 of asarone for mice in enteral administration was 417.6 mg/kg, in intra-abdominal--310 mg/kg. The preparation has quite diverse biological activity--tranquilizing, sedative, antiulcer, spasmolytic and antisclerosing. In its pharmacological properties the studied asarone is identical with asarone obtained from Acorus calamus and Guatteria.

[Pharmacological properties of inulicin, a sesquiterpene lactone from Japanese inula]. / Farmakologicheskie svoistva inulitsina--seskviterpenovogo laktona iz deviasila iaponskogo.

Inulicin is a sesquiterpene lactone obtained from Inula Japonica L. (Compositae) possesses a fairly wide spectrum of pharmacological action. In doses from 5 to 60 mg/kg it exerts a certain stimulant action on the central nervous system and smooth muscles of the intestine, displays an anti-inflammatory and anti-ulcer activity on pathological models of different genesis, and has capillary-strengthening diuretic properties. When given in low doses, the drug did not affect cardiac activity, while in high doses it might inhibit it. Inulicin is relatively little toxic. The LD50 for mice is 476 mg/kg intraperitoneally and 1330 mg/kg per os.

[Pharmacological properties of adicin, Soviet alpha-acetyldigitoxin]. / Farmakologicheskie svoistva aditsina--otechestvennogo al'fa-atsetildigitoksina.

Adicin, Soviet alpha-acetyldigitoxin, obtained from Digitalis lanata Ehrh., c. Scrophulariaceae after isolation from it of celanid is a highly effective cardiotonic of the digitalis type of action. It exerts a favourable ino- and tonotropic and an adverse chronotropic action on the heart. This action is brought up in varied animal species and can be observed for a long time (over 3 hours). Adicin produces no adverse effect on the coronary blood flow and it is conducive to the improvement of venous circulation. The drug does not differ considerably from acedoxin (Hungarian alpha-acetyldigitoxin) from the standpoint of the cardiotonic effect, cumulative properties, elimination rate, biological activity and toxicity. Adicin is recommended for clinical trials with a purpose of replacing imported drugs.