Hypertension.
The morphological changes in myocardial tissue in spontaneously hypertensive rat (SHR) occurring after administration of propylthiouracil (PTU) were assessed in the project. PTU at a concentration of 0.1% was given to the animals with drinking water for 47 days. After the end of the experiment, the morphological parameters of cardiomyocytes, the density of cardiomyocytes and fibroblasts in the myocardium, and the average area of the lumen of veins were examined. The progressive development of dystrophic processes in the myocardium was established against the background of PTU intake, which was characterized by a decrease in the cardiomyocyte density and an increase in the volume of connective tissue, venous congestion, and expansion of the lumen of veins.
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