Integrative and Biochemical Parameters in Rats in the Simulation of Doxorubicin Chronic Heart Failure and During the Use of Β-Adrenergic Blockers

β-adrenergic blockers have been actively used in the treatment of heart failure, which relieve excessive sympathetic stimulation of the myocardium, reduce calcium overload of cardiomyocytes, reduce the heart's oxygen demand, inhibit lipid peroxidation and stabilize cell membranes, have an antiarrhythmic effect. The aim: to compare efficiency of various drugs with new potential "Hypertril" in the conditions of modeling doxorubicin chronic heart failure (CHF) to improve parameters. Objective: CHF was modeled on 85 white outbred rats weighing 190–220g by administering doxorubicin at a cumulative dose of 15 mg/kg. Material and metods: Nebivalol, Carvedilol, Bisoprolol, Metoprolol and Hypertril were administered intragastrically once a day in the form of a suspension of 1% starch mucus for 30 days after a 14-day administration of doxorubicin. To determine damage, we used the solid-phase immunosorbent sandwich ELISA method, enzyme immunoassay and the immunoturbodimetric method. Result and discussion: Administration of Hypertril to rats with CHF led to a decrease in the blood of the main molecular markers of CHF to the values of intact animals, which indicated its significant cardioprotective effect in comparison with other drugs. Hypertril reduces manifestations of mitochondrial dysfunction, protects the myocardium and positively affects the morphological and functional parameters of cardiomyocytes, inhibits apoptosis