Adrenocortical Response to Stress and ACTH in Pacific Salmon (Oncorhynchus tshawytscha) and Steelhead Trout (Salmo gairdnerii) at Successive Stages in the Sexual Cycle
| Autor: | Satoshi Hane, Marcus A. Krupp, Bernard C. Wexler, O. H. Robertson |
|---|---|
| Rok vydání: | 1966 |
| Předmět: |
Male
endocrine system medicine.medical_specialty animal diseases Endocrinology Adrenocorticotropic Hormone Stress Physiological Internal medicine Adrenal Glands Blood plasma medicine Animals Salmo 17-Hydroxycorticosteroids Hyperplasia biology ADRENAL CORTICOSTEROIDS Fishes biology.organism_classification On board Trout Oncorhynchus Functional activity Female Sex sense organs hormones hormone substitutes and hormone antagonists |
| Zdroj: | Endocrinology. 78:791-800 |
| ISSN: | 1945-7170 0013-7227 |
| DOI: | 10.1210/endo-78-4-791 |
| Popis: | With the purpose of acquiring information concerning the functional activity of the adrenocortical tissue of the Pacific salmon (O. tshawytscha) during various stages of its migration from the sea to the spawning grounds, ACTH administration, the stress of holding in a confined space and repeated bleeding were employed to determine the response of the adrenocortical tissue as reflected in the changing concentration of 17-hydroxycorticosteroids (17- OHCS) in the blood plasma. The stress of holding sea salmon in a tank on board ship, without other disturbance, resulted after 1 hr in a progressive rise in plasma 17-OHCS to as much as a 4-fold increase by the end of 24–48 hr. This change was accompanied by hyperplasia of the adrenocortical tissue. At the beginning of the salmon's river migration, both holding alone plus bleeding and ACTH injection produced a marked increase in plasma 17-OHCS, but not quite as great as that shown by salmon taken in the sea. Thereafter, as the salmon continued their migration a... |
| Databáze: | OpenAIRE |
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