BIOCHEMICAL STUDIES ON SOCKEYE SALMON DURING SPAWNING MIGRATION: VII. STEROID HORMONES IN PLASMA

Canadian Science Publishing - Tập 37 Số 10 - Trang 1227-1238 - 1959
D. R. Idler1, A. P. Ronald1, Peter J. Schmidt1
1Fisheries Research Board of Canada, Chemistry Section of the Technological Station, Vancouver, British Columbia

Tóm tắt

Cortisone, cortisol, and 17-hydroxyprogesterone were isolated from the plasma of prespawning Fraser River sockeye salmon. The female plasma contained double the concentration of cortisone and cortisol found in male plasma, 41 μg and 26 μg/100 ml respectively as compared with 22 μg and 11 μg/100 ml.Corticosterone is probably present at a very low concentration and neither 11-desoxycorticosterone nor aldosterone was detected in the plasma from approximately 100 fish. Cortisone, cortisol, and total 17-hydroxysteroids were quantitatively determined in plasma samples obtained from two pure races of sockeye captured at various stages of sexual maturity. The combined concentration of cortisone and cortisol which, at the mouth of the river was three times that of the normal human, increased to as high as 17 times this level following spawning. The results are discussed in relation to the death of the fish.

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Canadian Science Publishing

Tập 37 Số 10

1227-1238

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