Serum levels of testosterone, 11‐ketotestosterone and oestradiol‐17β in three species of sturgeon during gonadal development and final maturation induced by hormonal treatment
Identifieur interne : 001090 ( Main/Merge ); précédent : 001089; suivant : 001091Serum levels of testosterone, 11‐ketotestosterone and oestradiol‐17β in three species of sturgeon during gonadal development and final maturation induced by hormonal treatment
Auteurs : I. A. Barannikova [Russie] ; L. V. Bayunova [Russie] ; T. B. Semenkova [Russie, États-Unis]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 2004-05.
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Abstract
Changes in serum concentrations of two androgens, testosterone (T) and 11‐ketotestosterone (11KT), and oestradiol‐17β(E2) in male and female giant sturgeon Huso huso, Russian sturgeon Acipenser gueldenstaedtii and stellate sturgeon Acipenser stellatus were studied at different stages of gonadal maturity and after final maturation induced by hormonal treatment. Both male and female fish displayed a distinct increase in serum steroid concentrations during gonadal development. 11KT levels were significantly higher in males than females, with a positive correlation detected between 11KT and T concentrations. In maturing males and females, higher values of both 11KT and T were observed in stellate sturgeon compared to giant and Russian sturgeons. Vitellogenesis and high E2 levels were correlated in maturing sturgeon females.
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DOI: 10.1111/j.0022-1112.2004.00395.x
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A." last="Barannikova">I. A. Barannikova</name><affiliation wicri:level="1"><country xml:lang="fr">Russie</country><wicri:regionArea>Physiological Institute, St‐Petersburg State University, St‐Petersburg, 199 034</wicri:regionArea><wicri:noRegion>199 034</wicri:noRegion></affiliation></author><author><name sortKey="Bayunova, L V" sort="Bayunova, L V" uniqKey="Bayunova L" first="L. V." last="Bayunova">L. V. Bayunova</name><affiliation wicri:level="1"><country xml:lang="fr">Russie</country><wicri:regionArea>Central Laboratory of Fish Reproduction, 24, prof. Popova, St‐Petersburg, 197 022</wicri:regionArea><wicri:noRegion>197 022</wicri:noRegion></affiliation></author><author><name sortKey="Semenkova, T B" sort="Semenkova, T B" uniqKey="Semenkova T" first="T. B." last="Semenkova">T. B. Semenkova</name><affiliation wicri:level="1"><country xml:lang="fr">Russie</country><wicri:regionArea>Central Laboratory of Fish Reproduction, 24, prof. Popova, St‐Petersburg, 197 022</wicri:regionArea><wicri:noRegion>197 022</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">États-Unis</country></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fish Biology</title><idno type="ISSN">0022-1112</idno><idno type="eISSN">1095-8649</idno><imprint><publisher>Blackwell Science Ltd</publisher><pubPlace>Oxford, UK; Malden, USA</pubPlace><date type="published" when="2004-05">2004-05</date><biblScope unit="volume">64</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="1330">1330</biblScope><biblScope unit="page" to="1338">1338</biblScope></imprint><idno type="ISSN">0022-1112</idno></series><idno type="istex">619632AE7C58D96172B667D6985D8644D2F33664</idno><idno type="DOI">10.1111/j.0022-1112.2004.00395.x</idno><idno type="ArticleID">JFB395</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1112</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>11‐ketotestosterone</term><term>final maturation</term><term>gametogenesis</term><term>oestradiol‐17β</term><term>sturgeon</term><term>testosterone</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Changes in serum concentrations of two androgens, testosterone (T) and 11‐ketotestosterone (11KT), and oestradiol‐17β(E2) in male and female giant sturgeon Huso huso, Russian sturgeon Acipenser gueldenstaedtii and stellate sturgeon Acipenser stellatus were studied at different stages of gonadal maturity and after final maturation induced by hormonal treatment. Both male and female fish displayed a distinct increase in serum steroid concentrations during gonadal development. 11KT levels were significantly higher in males than females, with a positive correlation detected between 11KT and T concentrations. In maturing males and females, higher values of both 11KT and T were observed in stellate sturgeon compared to giant and Russian sturgeons. Vitellogenesis and high E2 levels were correlated in maturing sturgeon females.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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