[The influence of mexidol on post-radiation recovery of hemopoietic system].

The purpose of this work was the study in experiments on mice of influence of mexidol on current and outcome of an acute radiation sickness. At an irradiation in a dose 6.0 Gy was studied a condition of hemopoietic system, and at an irradiation in a dose 7.

[Effect of energostim on myocardial damage during coronary artery occlusion].

In contrast to traditional therapy (beta-adrenoblocker and nitrates), energostim improves the systolic and diastolic functions of myocardium during 120-min occlusion of the left descending coronary artery. The energostim-induced improvement in the central hemodynamics is correlated with an adaptive increase in activity of the antioxidant system enzymes in response to the ischemic production of reactive oxygen species, which is evidence of the mobilization of reserves of the enzymatic link in the antioxidant defense system of cardiomyocytes. Analogous pattern is observed in the blood.

[A disorder of myocardial contractile function in acute experimental coronary failure: the submolecular mechanisms and the action of cardiac glycosides].

Skinned and hybrid myocardial fibers were studied by methods of tensometry, determination of the ATP hydrolysis intensity, and resonance fluorescent energy transfer between highly selective labels bound to various amino acid residues. It was established that development of the early stage of heart failure in the case of acute myocardial ischemia caused by 15-min coronary artery occlusion (CAO) is related to a reversible damage or adaptive (functional) depression of the contractile protein system. As a result, the system features isolated submolecular post-translational variation in the properties of major proteins in a thin actin filament (myosin is not significantly damaged).