Neurohumoral changes in rats of different age groups on the background of injection of cryopreserved cord blood nucleated cells

Abstract

The application of a cryopreserved preparation of UCB NCs to rats was accompanied by enhanced activity of all neurohumoral regulation elements of heart rate, although the absolute parameters in 18- and 24-month-old animals did not reach values similar to those in groups of younger age. We also noticed an increase of the thyroid hormone concentration in the blood serum of the old rats. The concentration decreased with age. In addition, it was shown that the injection of UCB NCs during the animal’s life cycle (every 6 months) made it possible to maintain a functional state of the autonomous nervous system at a “young” physiological level.