Canadian Journal of Biochemistry and Physiology · 1961 · 54 citations · 5 references
Life SciencesEndocrinologyPhysiologyComparative EndocrinologyExcretionNeuroendocrinologyAdrenal EndocrinologyAdrenal HormonesAdrenal Steroid HormonesEndocrine PhysiologyMammalian EndocrinologyNeuroendocrine PhysiologyAdrenal Cortex PhysiologyAdrenal Medulla Hormone SecretionAdrenal Medulla HormonesAdrenal Steroid Secretion DynamicsAdrenocortical SecretionCatecholamine Secretion
The urinary excretion of adrenaline and noradrenaline in normal and cold-adapted rats was investigated. The level of noradrenaline was found to be 15 times higher than that of adrenaline in both normal and cold-adapted animals. A fivefold increase of these two amines was observed in animals adapted to cold. A study in adrenalectomized rats indicated that this increased excretion of adrenaline in cold-adapted animals originated from the adrenals, whereas the increase in noradrenaline would have been secreted outside these glands.
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