Early postnatal cold imprinting influence on the adult rats’ adrenal medulla functional state

Abstract

The article describes the cold imprinting modifying effect on the adrenomedullary cells functional state in adult animals. It has been shown that short-term cold exposure in early ontogenesis leads to an increase in norepinephrine reserves in the adult rats’ adrenal glands. With these animals test cooling, the phenylethanolamine-N-methyltransferase activity in the adrenal glands decreases, thereby preserving the hormone reserves, which is the thermogenesis dominant activator in the mammalian body.