[The effect of the delta-sleep peptide on the adrenaline level in rat tissues under normal conditions and during cold stress].

Adrenalin content in the brain, liver and adrenal glands under the effect of cold stress grows by 314, 500 and 56% as compared to the control. A single administration of the delta-sleep inducing peptide (DSIP) in a dose of 12 microgram/100 g to intact animals makes the adrenalin content in the brain higher 1, 3, 6 and 24h after administration; two and three days later the adrenalin content in the brain does not change. The amount of adrenalin in the liver of the same animals increases 1, 3, 6 h and 1, 2, 3 days after DSIP administration. Intraperitoneal administration of DSIP induces an increase of the adrenalin level in the adrenal glands of rats an hour and a day after administration. Two days later the level of adrenaline decreases by 41%; 3, 6 h and 3 days after DSIP administration the content of adrenaline remains unchanged. As a result of the DSIP administration in a dose of 12 micrograms/100 g to the animals in the state of cold stress, the content of adrenalin increases in the rat brain by 129, in the liver--by 300, adrenal glands--by 44% as compared with the control.