The effect of ETA receptor blockade on cardiomyocyte apoptosis and myocardial hypertrophy development in genetically hypertensive rats

Cardiomyocyte apoptosis and hypertrophy have been studied in the left and right ventricular myocardium of spontaneously hypertensive rats without treatment and after 10-day administration of the ETA-receptor antagonist BQ-123. It is established that BQ-123 prevents the activation of cardiomyocyte apoptosis and significantly decreases the extent of hypertrophy development in the left ventricular myocardium, but does not influence the same mechanisms in the right ventricular myocardium.