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  • Title: [The positive action of refracterin on the reserve potentials and metabolism of the myocardium during its overload in toxic-allergic myocarditis].
    Author: Karsanov NV, Sukoian GV, Dzhibgashvili IK, Tatulashvili DR, Gorelishvili II.
    Journal: Patol Fiziol Eksp Ter; 1999; (4):10-6. PubMed ID: 10636764.
    Abstract:
    Heart overloading due to pressure as a result of 8 periodic full aortic constriction in heart failure (HF) caused by 10-day toxic-allergic myocarditis (TAM) leads to deterioration of heart contractility (pump function). This is explained by additional decline in functional activity of all three systems of cardiomyocyte responsible for contraction-relaxation. In particular, by a sharp fall of ATP and CP content in the myocardium, a 400% decrease in myofibril power, 200% reduction in efficiency of contraction and marked deterioration of calcium transport. The resultant exhaustion of myocardial reserve brought 70% lethality among the animals. Under the above conditions coordination between the systolic and diastolic cardiac functions, correlation between myocardial functional activity and subcellular systems of cardiomyocyte are impaired. In pressure heart overloading refracterin initiates profound metabolic rearrangements improving metabolism, remodelling of the system of energy supply, reestablishment of systemic homeostasis, normalization of cardiomyocyte and cardiac reserves.
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