Effect of a tryptophangydroxylase blocker in the embryonic period on the pumping function of the rat heart in early postnatal ontogenesis

The pumping function of the heart of 14-day old rat pups was studied, in the embryonic period of development of which there was a deficit of serotonin (5-HT), created by the chronic administration of serotonin synthesis blocker the of para-chloro-phenyl-alanine (PCPA). The time of rapid expulsion of blood in experimental and control pups is 0.019 sec and 0.021 sec, respectively (p0.05) . The time of slow expulsion of blood and the duration of the expulsion period are less in rat pups of the experimental group than in the control group (p