PMID: 6161860Jan 1, 1980Paper

Genetics and phenogenetics of the hormonal characteristics of animals. VII. Correlation between brain serotonin and the hypothalamo-pituitary-adrenal system in domesticated and undomesticated silver foxes during emotional stress

Genetika
N K PopovaE V Naumenko

Abstract

Two groups of silver foxes, selected according their behaviour with respect to man and non-selected ones, were exposed to restriction-induced stress. It was found that changes in the level of brain serotonin and its main metabolite, 5-hydroxyindolacetic acid, and elevation of plasma corticosteroids concentration in domesticated (tame) silver foxes were much less pronounced than in non-domesticated (non-tame) animals. Positive relationship between type of behaviour, brain serotonin metabolism and pituitary-adrenal axis response to stress was observed. It is suggested that such correlative pattern as changed pituitary-adrenal axis responses in domesticated animals may be due to changes in metabolism of controlling this axis brain transmitter serotonin.

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