the results show that ( i ) at room temperature the levels of excretion are lower in italico than in wistar rats in spite of the equal amine contents of the adrenal medullae , ( ii ) the first exposure to cold causes a large increase in the urinary excretion and a decrease of adrenaline and noradrenaline content of the adrenal glands in both strains , ( iii ) after 3 days the catecholamine content in the organ was higher than normal in wistar rats , whereas in the italico strain it continued to decrease , and ( iv ) a new steady state at higher levels is reached after 20 days of exposure , when not only the catecholamine content but also the urinary excretion is equal in both strains .
C0014563
adrenaline
C0028351
noradrenaline