Gonadotropin stimulated androgen secretion of rainbow trout (Salmo gairdneri Richardson) testis in vitro
- PMID: 2889574
- DOI: 10.1016/0300-9629(87)90097-1
Gonadotropin stimulated androgen secretion of rainbow trout (Salmo gairdneri Richardson) testis in vitro
Abstract
1. The secretion of five androgens was quantified from trout testes under GTH-stimulation in vitro before and after the onset of milt production, and a general increase of basal and GTH stimulated androgen secretion was recorded during this period. 2. 11-Ketotestosterone, testosterone, and in spermiating males, 11 beta-hydroxytestosterone as well showed GTH dependent concentration increases, while androstenetrione and 11 beta-hydroxyandrostendione were found in highly variable amounts. 3. 17 beta-Hydroxyandrogen glucuronides in the medium (with the exception of testosterone) and tissue androgens were by far exceeded by the free androgens in the medium.
Similar articles
-
Trout steroidogenic testicular cells in primary culture. I. Changes in free and conjugated androgen and progestagen secretions: effects of gonadotropin, serum, and lipoproteins.Gen Comp Endocrinol. 1990 Jun;78(3):374-87. doi: 10.1016/0016-6480(90)90027-j. Gen Comp Endocrinol. 1990. PMID: 2347487
-
The brain-pituitary-gonadal axis in the rainbow trout, Salmo gairdneri: gonadal hormones and the maturation of gonadotropic cells.Cell Tissue Res. 1982;225(1):45-56. doi: 10.1007/BF00216217. Cell Tissue Res. 1982. PMID: 7116428
-
Endocrine changes associated with spawning behavior and social stimuli in a wild population of rainbow trout (Salmo gairdneri). I. Males.Gen Comp Endocrinol. 1986 Apr;62(1):145-56. doi: 10.1016/0016-6480(86)90103-6. Gen Comp Endocrinol. 1986. PMID: 3781212
-
The brain-pituitary-gonadal axis in the rainbow trout, Salmo gairdneri. III. Absence of an inhibiting action of testosterone on gonadotrophin release in juveniles.Gen Comp Endocrinol. 1984 Dec;56(3):457-65. doi: 10.1016/0016-6480(84)90088-1. Gen Comp Endocrinol. 1984. PMID: 6392013
-
Steroid secretion of rainbow trout testis in vitro: variation during the reproductive cycle.Gen Comp Endocrinol. 1990 Nov;80(2):189-98. doi: 10.1016/0016-6480(90)90164-h. Gen Comp Endocrinol. 1990. PMID: 2073999