[Studying the mechanism of antiarrhythmic action of a tertiary derivative of lidocaine]. / Issledovanie nekotorykh aspektov mekhanizma protivoaritmicheskogo deistviia tretichnogo proizvodnogo lidokaina.

The investigation of electrophysiological parameters of the cardiac activity in cats showed that, a derivative of lidocaine with glutamic acid (anion), does not influence the cardiac pacemaker and the myocardial excitability of atrium and ventricles, but decreases the atrioventricular conduction and increases the refractory period of myocardium in the left ventricle of intact heart. Under the conditions of myocardial ischemia, LKhT-3-00 exhibits a negative chronotropic effect. Lidocaine glutamate increases the refractory period of atrium and decreases the excitability and refractory period of ventricles.

[Effect of trimecaine derivatives and lidocaine on hemodynamics]. / Vliianie proizvodnykh trimekaina i lidokaina na gemodinamiku.

The results of experiments on cats showed that quaternidine, a quaternary ammonium derivative of trimecaine, does not induce significant variations in the hemodynamic parameters, being advantageous in this respect to some well-known antiarrhythmic drugs. LKhT-3-00 (dialkylaminophenylacetamide glutaminate)--a tertiary derivative of lidocaine--leads to a slight decrease in the heart rate, an insignificant decrease in the arterial pressure for 10 min, and a pronounced enhancement of the pumping ability of the left ventricle over a time period of 30 min.

[Possible pharmacological correction of metabolic impairments experimental diabetes mellitus by antioxidant]. / Vozmozhnosti farmakologicheskoi korrektsii metabolicheskikh narushenii pri éksperimental'nom diabete preparatami antioksidantnogo tipa deistviia.

On model of experimental diabetes in rats the possibility of correction of impairments of lipid, carbohydrate and albumin metabolism by SEMOP in a dose of 25 or 5 mg/kg, dimephosphone (100 mg/kg) and alpha-tocopherol (25 mg/kg) has been Advantage of SEMOP consists in its ability to decrease a level of total protein and albumin of blood of animals with experimental diabetes.

[Study of antiarrhythmic activity and duration of action of quaternidine]. / Issledovanie protivoaritmicheskoi activnosti i prodolzhitel'nosti deistviia kvaternidina.

The results of experiments on dogs showed that quaternidine, a quaternary ammonium derivative of trimecaine, produces a significant antiarrhythmogenic effect in cases of rhythm disorders in the late stage of a model myocardial infarction. For drugs administered in a single isotoxic dose, the therapeutic effect of quaternidine in animals with acute myocardial ischemia considerably exceeds the duration of action of lidocaine and trimecaine.

[The antiarrhythmic activity of the trimecain ammonium derivative in myocardial ischemia]. / Protivoaritmicheskaia aktivnost' ammonievogo proizvodnogo trimekaina na fone ishemicheskogo povrezhdeniia serdtsa.

The results of experiments on cats and dogs showed that quaternidine, a quaternary ammonium derivative of trimecaine, exceeds the structural precursors (trimecaine and lidocaine), as well as the reference drugs quinidine and propranolol, in intensity of the antiarrhythmic action upon single administration on the occlusive and reperfusive arrhythmia models. The therapeutic effect of quaternidine in animals with acute myocardial ischemia lasts for about 8 h, which more than 20 times longer as compared to the duration of action of both lidocaine and trimecaine.

[Efficacy of galstena in liver damage induced by antitubercular agents]. / Effektivnost' galsteny pri povrezhdenii pecheni protivotuberkuleznymi sredstvami.

It is established that galstena possesses hepatoprotector activity and is capable of reducing pathological changes in animals treated with toxic doses of antituberculous drugs. Galstena prevents from the development of cytolysis, as evidence by inhibition of the activity of aspartate aminotransferase, alanine aminotransferase, and lactate dehydrogenase. The anti cholestatic effect of galstena is confirmed by suppression of the growth in the levels of total bilirubin, alkaline phosphatase, and gamma-glutarate transpeptidase. Galstena was also found to possess antiinflammatory properties. Moreover, a growth in the activity of glutathione-dependent reductase (related to inhibited growth of the iron level in the blood serum) is evidence of the antioxidant activity. In addition, galstena prevents from an increase in the content of creatinine and urea, which is evidenced of decreasing endogenous intoxication.

[Hepatoprotective effect of plant preparations]. / Gepatoprotektornoe deistvie preparatov rastitel'nogo proiskhozhdeniia.

The hepatoprotector activity of original compositions of plant origin, containing beet and carrot juices, decoction of dog rose fruits, and extracts of corn silk, peppermint leaves, and common horsetail herbs was studied on an acute hepatitis model induced by tetrachloromethane. An analysis of the data on the hepatocyte cytolysis, cholestasis, lipid peroxidation, and antioxidant system of blood serum showed that the preparations possess membranoprotector and antioxidant properties. This was manifested by a decrease in the activity of alanine aminotransferase and in the levels of total bilirubin and the final (malonaldehyde) and intermediate (diene conjugates) lipid peroxidation products, and by the absence of decline in the level of endogenous alpha-tocopherol and in the activity of glutathione-dependent enzymes.

[Effect of plant preparations on lipid peroxidation parameters in acute toxic hepatitis]. / Vliianie sredstv rastitel'nogo proiskhozhdeniia na pokazateli perekisnogo okisleniia lipidov pri ostrom toksicheskom gepatite.

The influence of the original vegetable complexes (which include: juices of beet-rout and carrot, decoction of degrose berries, extracts of corn silk, leaves of peppermint and some other components) on the indicators of the cytolysis, lipid peroxidation and antioxidant system of serum of the laboratory rats with acute toxic hepatitis, was investigated. The vegetable complexes exhibited antioxidant effects which were proved by the reduction of the final and intermediate products of lipoperoxidization, the absence of decline of the level of endogenous alpha-tocopherol content and glutathione dependent enzymes.

[The anti-arrhythmia activity of amino acid-containing trimecaine derivatives on models of early occlusive and reperfusion arrhythmias in cats]. / Protivoaritmicheskaia aktivnost' aminokislotsoderzhashchikh proizvodnykh trimekaina na modeliakh rannikh okkliuzionnykh i reperfuzionnykh aritmii u koshek.

Experiments were conducted on models of early occlusion and reperfusion arrhythmias in cats to study the antiarrhythmic activity of trimecain, its morpholine analogue (MPT), and MPT derivatives containing glycine, magnesium salt of aspartic acid, and N-acetylglutaminic acid. All the compounds were injected in doses of 5% of LD50. A 22.5 mg/kg dose of trimecain prevented cardiac rhythm disorders after occlusion of the coronary arteries as well as after restoration of the coronary blood flow. Replacement of the diethyl group in the structure of trimecain by the morpholine ring led to diminution of antiarrhythmic activity, and MPT in a dose of 28.0 mg/kg, in distinction from the former, had no effect on the frequency of the occurrence of early occlusion arrhythmias and the duration of reperfusion arrhythmias. Introduction of amino acids as an anion into the MPT structure raised the antiarrhythmic activity of the last named.

[The effect of ximedon on adaptation to prolonged immobilization stress]. / Vliianie ksimedona na adaptatsiiu k dlitel'nomu immobilizatsionnomu stressu.

It was shown in rabbit experiments that the use of ximedon in long-term immobilization stress limits activation of lipid peroxidation, stimulates the main enzymes of the antioxidant systems, causes of hypolipidemic, preventive endotheliotropic, and cardiotropic effect.

[Effect of UV-irradiation of blood on the course of adaptation to conditions of hypodynamia]. / Vliianie UF-oblucheniia krovi na techenie adaptatsii k usloviiam gipodinamii.

The rabbit experiment has studied the impact of ultraviolet (UV) blood irradiation on the course of adaptative processes under restrictive stress. Thirty-day hypodynamia was demonstrated to result in chronic stress whose pathogenetic links are activated neutrophilic leukocytes, developed disseminated intravascular coagulation, atherogenic metabolic changes. UV blood irradiation enhanced the body's adaptative potentialities under long-term hypodynamia, by diminishing restriction-induced stress lesion.

[The anti-arrhythmia activity of energy-providing and electron-acceptor compounds]. / Protivoaritmicheskaia aktivnost' nekotorykh énergoobespechivaiushchikh i élektronaktseptornykh soedinenii.

The protective effects of fructose-1, 6-diphosphate, sodium malate and cytochrome C were studied in the experiments on rats with disorders of the cardiac rhythm of various origin. The compounds studied prevent the strophantine and adrenaline-induced cardiac rhythm disturbances, but appeared ineffective on aconitine and calcium chloride models.