File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Effects of LH and LHRH-analog on gonadal development and in vitro steroidogenesis in the protogynous Monopterus albus

TitleEffects of LH and LHRH-analog on gonadal development and in vitro steroidogenesis in the protogynous Monopterus albus
Authors
Issue Date1993
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ygcen
Citation
General And Comparative Endocrinology, 1993, v. 89 n. 3, p. 323-332 How to Cite?
AbstractThe effects of ovine luteinizing hormone (oLH) and a synthetic analog of luteinizing hormone releasing hormone, des-Gly 10 [D-Ala 6]-LHRH ethylamide acetate salt (LHRH-A), on gonadal development and on in vitro steroidogenesis in the female phase of the protogynous sex-reversing Monopterus albus were investigated at different periods of the seasonal cycle. At the postspawning stage, oLH induced a precocious sex reversal with marked proliferation of interstitial Leydig cells and development of spermatogonial cysts in the gonads, and enhanced in vitro production of unsaturated androgens. However, such oLH effects were insignificant in females during the early prespawning stage: some spermatogonial cysts appeared, but no proliferation of Leydig cells took place. During both the postspawning and early prespawning stages, LHRH-A stimulated growth of the oocytes with increased yolk content. Gonadal steroid metabolism by females at early prespawning stage was not affected by LHRH-A within the brief experimental period. In the postspawning period, LHRH-A caused a change in the in vitro steroidogenic profile from a postspawning pattern to that of a typical prespawning female pattern with increased production of estrogens and two unknown metabolites, and decreased production of 5α-androstan-3β-OH-17-one.
Persistent Identifierhttp://hdl.handle.net/10722/157262
ISSN
2015 Impact Factor: 2.667
2015 SCImago Journal Rankings: 1.245
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorYeung, WSBen_HK
dc.contributor.authorChen, Hen_HK
dc.contributor.authorChan, STHen_HK
dc.date.accessioned2012-08-08T08:48:30Z-
dc.date.available2012-08-08T08:48:30Z-
dc.date.issued1993en_HK
dc.identifier.citationGeneral And Comparative Endocrinology, 1993, v. 89 n. 3, p. 323-332en_HK
dc.identifier.issn0016-6480en_HK
dc.identifier.urihttp://hdl.handle.net/10722/157262-
dc.description.abstractThe effects of ovine luteinizing hormone (oLH) and a synthetic analog of luteinizing hormone releasing hormone, des-Gly 10 [D-Ala 6]-LHRH ethylamide acetate salt (LHRH-A), on gonadal development and on in vitro steroidogenesis in the female phase of the protogynous sex-reversing Monopterus albus were investigated at different periods of the seasonal cycle. At the postspawning stage, oLH induced a precocious sex reversal with marked proliferation of interstitial Leydig cells and development of spermatogonial cysts in the gonads, and enhanced in vitro production of unsaturated androgens. However, such oLH effects were insignificant in females during the early prespawning stage: some spermatogonial cysts appeared, but no proliferation of Leydig cells took place. During both the postspawning and early prespawning stages, LHRH-A stimulated growth of the oocytes with increased yolk content. Gonadal steroid metabolism by females at early prespawning stage was not affected by LHRH-A within the brief experimental period. In the postspawning period, LHRH-A caused a change in the in vitro steroidogenic profile from a postspawning pattern to that of a typical prespawning female pattern with increased production of estrogens and two unknown metabolites, and decreased production of 5α-androstan-3β-OH-17-one.en_HK
dc.languageengen_US
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ygcenen_HK
dc.relation.ispartofGeneral and Comparative Endocrinologyen_HK
dc.subject.meshAnimalsen_US
dc.subject.meshFemaleen_US
dc.subject.meshFishes - Growth & Developmenten_US
dc.subject.meshGonadotropin-Releasing Hormone - Analogs & Derivatives - Pharmacologyen_US
dc.subject.meshGonads - Anatomy & Histology - Drug Effects - Growth & Developmenten_US
dc.subject.meshLeydig Cells - Drug Effects - Metabolismen_US
dc.subject.meshLuteinizing Hormone - Pharmacologyen_US
dc.subject.meshMaleen_US
dc.subject.meshReproduction - Drug Effectsen_US
dc.subject.meshSex Differentiation - Drug Effectsen_US
dc.subject.meshSteroids - Biosynthesisen_US
dc.titleEffects of LH and LHRH-analog on gonadal development and in vitro steroidogenesis in the protogynous Monopterus albusen_HK
dc.typeArticleen_HK
dc.identifier.emailYeung, WSB:wsbyeung@hkucc.hku.hken_HK
dc.identifier.emailChen, H:hlchen@hkucc.hku.hken_HK
dc.identifier.authorityYeung, WSB=rp00331en_HK
dc.identifier.authorityChen, H=rp00383en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1006/gcen.1993.1040en_HK
dc.identifier.pmid8335223-
dc.identifier.scopuseid_2-s2.0-0027499893en_HK
dc.identifier.volume89en_HK
dc.identifier.issue3en_HK
dc.identifier.spage323en_HK
dc.identifier.epage332en_HK
dc.identifier.isiWOS:A1993KT64600002-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYeung, WSB=7102370745en_HK
dc.identifier.scopusauthoridChen, H=26643315400en_HK
dc.identifier.scopusauthoridChan, STH=24368283200en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats