Steroids in the reproductive function regulation in fish

Following ovulation cortisol and testosterone concentrations were lower in the stellate sturgeon coelomic fluid than in the blood serum, whereas the levels of progesterone was lower in the blood. Specific cytosol binding of sex steroids in the brain and the gonads differed in fish before and after t...

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Bibliographic Details
Published inRossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova Vol. 86; no. 8; p. 968
Main Authors Barannikova, I A, Diubin, V P, Baiunova, L V, Semenkova, T B
Format Journal Article
LanguageRussian
Published Russia (Federation) 01.08.2000
Subjects
Animals
Brain - anatomy & histology
Brain - metabolism
Female
Fishes - physiology
Gonadal Steroid Hormones - blood
Gonadal Steroid Hormones - metabolism
Gonadal Steroid Hormones - physiology
Gonads - metabolism
Male
Receptors, Steroid - metabolism
Reproduction - physiology
Seasons
Sex Factors
Steroids - blood
Steroids - metabolism
Steroids - physiology
Testosterone - analogs & derivatives
Testosterone - blood
Testosterone - metabolism
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Summary:Following ovulation cortisol and testosterone concentrations were lower in the stellate sturgeon coelomic fluid than in the blood serum, whereas the levels of progesterone was lower in the blood. Specific cytosol binding of sex steroids in the brain and the gonads differed in fish before and after the maturation. In the forebrain, the specific binding of androgens dropped sharply after the ovulation. In the hypothalamus the specific binding of estrogens was the highest after the final maturation and ovulation. A certain correlation between the blood sex steroids concentrations and their specific binding in the brain and gonads cytosol, were established.
ISSN:0869-8139