1999
DOI: 10.1006/gcen.1998.7242
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Duality of Gonadotropin in a Primitive Teleost, Japanese Eel (Anguilla japonica)

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Cited by 88 publications
(65 citation statements)
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“…The steroid is required for spermatogenesis 26 . While GTH II has been identified in some fish, e.g., chum salmon (Oncorhynchus keta) 1,2,3 , coho salmon (Oncorhynchus kisutch) 4 and Japanese eel (Anguilla japonica) 5 and its role in regulating reproduction has been well known, a specific role for GTH I in fish spermatogenesis has not been established 27 . For further studies, in order to confirm the findings on gonadotropic cell types and their activity during reproductive cycle, the immunogold labeling method for electron microscopy should provide better qualitative data.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…The steroid is required for spermatogenesis 26 . While GTH II has been identified in some fish, e.g., chum salmon (Oncorhynchus keta) 1,2,3 , coho salmon (Oncorhynchus kisutch) 4 and Japanese eel (Anguilla japonica) 5 and its role in regulating reproduction has been well known, a specific role for GTH I in fish spermatogenesis has not been established 27 . For further studies, in order to confirm the findings on gonadotropic cell types and their activity during reproductive cycle, the immunogold labeling method for electron microscopy should provide better qualitative data.…”
Section: Discussionmentioning
confidence: 99%
“…Two gonadotropic cell types, producing two chemically distinct gonadotropins, (GTH I and GTH II) in the teleost are characterized in several fish, e.g. chum salmon (Oncorhynchus keta) 1,2,3 , coho salmon (Oncorhynchus kisutch) 4 and Japanese eel (Anguilla japonica) 5 . GTH I and GTH II are structurally homologous to the tetrapod follicle stimulating hormone (FSH) and luteinizing hormone (LH), respectively 1,2,4,6 .…”
Section: Introductionmentioning
confidence: 99%
“…However, in European sea bass (Dicentrarchus labrax), glycoprotein-, FSH-, LH- mRNA increased simultaneously with the gonadosomatic index (GSI) during spermatogenesis (Mateos et al, 2003). In eel, FSH seems to mediate gonadotropin stimulation in the early stages of the gametogenesis, while LH seems to be involved in the end of gametogenesis (European eel: Aroua et al, 2005;Schmitz et al, 2005;Japanese eel: Jeng et al, 2007;Yoshiura et al, 1999).…”
Section: Pituitarymentioning
confidence: 99%
“…In female eels, FSHβ was found in high levels in immature previtellogenic eels, while LH could be found at the vitellogenic stage and germinal vesicle migration stage (Nagae et al, 1996;Yoshiura et al, 1999;Degani et al, 2003). However, some researchers indicated that both GTHs are present in immature previtellogenic eels .…”
Section: Indexmentioning
confidence: 99%