Immunohistochemical Localization of Steroidogenic Enzymes in the Corpus Luteum and the Placenta of the Ribbon Seal(Phoca fasciata) and Steller Sea Lion(Eumetopias jubatus)
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- ISHINAZAKA Tsuyoshi
- Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
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- SUZUKI Masatsugu
- Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
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- YAMAMOTO Yukie
- Research Institute of North Pacific Fisheries, Hokkaido University
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- ISONO Takeomi
- Research Institute of North Pacific Fisheries, Hokkaido University
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- HARADA Nobuhiro
- Department of Biochemistry, Fujita Health University School of Medicine
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- MASON J. Ian
- Royal Infirmary of Edinburgh NHS Trust
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- WATABE Mitsuru
- Otaru Aquarium
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- TSUNOKAWA Masatoshi
- Otaru Aquarium
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- OHTAISHI Noriyuki
- Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
書誌事項
- タイトル別名
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- Immunohistochemical Localization of Steroidogenic Enzymes in the Corpus Luteum and the Placenta of the Ribbon Seal(Phoca fasciata) and Steller Sea Lion.
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抄録
To study the luteal and placental function of pinnipeds, we analyzed the localization of steroidogenic enzymes (P450scc, 3 β HSD and P450arom) in the corpus luteum and the placenta of ribbon seals (Phoca fasciata) and Steller sea lions (Eumetopias jubatus) immunohistochemically. P450scc and 3 β HSD were present in all luteal cells of both species. Almost all of the luteal cells were immunostained for P450arom, while P450scc and 3 β HSD were negatively immunostained in placentae and P450arom was present in the syncytiotrophoblast of placentae. These findings suggest that 1) corpora lutea of both species synthesize pregnenolone, progesterone and estrogen during the entire pregnancy period, and 2) like other terrestrial carnivores in the suborder Caniformia, placentae of both species do not have the capability for synthesizing progesterone in the latter half of active pregnancy period.
収録刊行物
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- The Journal of Veterinary Medical Science
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The Journal of Veterinary Medical Science 63 (9), 955-959, 2001
公益社団法人 日本獣医学会
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詳細情報 詳細情報について
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- CRID
- 1390001206426771072
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- NII論文ID
- 110003920727
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- NII書誌ID
- AA10796138
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- COI
- 1:CAS:528:DC%2BD3MXns1Gquro%3D
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- ISSN
- 13477439
- 09167250
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- NDL書誌ID
- 5937978
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- PubMed
- 11642282
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可