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Titolo:
Immunohistochemical localization of steroidogenic enzymes in the corpus luteum and the placenta of the ribbon seal (Phoca fasciata) and Steller sea lion (Eumetopias jubatus)
Autore:
Ishinazaka, T; Suzuki, M; Yamamoto, Y; Isono, T; Harada, N; Mason, JI; Watabe, M; Tsunokawa, M; Ohtaishi, N;
Indirizzi:
Hokkaido Univ, Grad Sch Vet Med, Lab Wildlife Biol, Kita Ku, Sapporo, Hokkaido 0600818, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600818 oro, Hokkaido 0600818, Japan Hokkaido Univ, Res Inst N Pacific Fisheries, Hakodate, Hokkaido 0410821, Japan Hokkaido Univ Hakodate Hokkaido Japan 0410821 te, Hokkaido 0410821, Japan Fujita Hlth Univ, Sch Med, Dept Biochem, Toyoake, Aichi 4701192, Japan Fujita Hlth Univ Toyoake Aichi Japan 4701192 oyoake, Aichi 4701192, Japan Royal Infirm Edinburgh NHS Trust, Edinburgh EH397W, Midlothian, Scotland Royal Infirm Edinburgh NHS Trust Edinburgh Midlothian Scotland EH397W and Otaru Aquarium, Otaru, Hokkaido 0470047, Japan Otaru Aquarium Otaru Hokkaido Japan 0470047 taru, Hokkaido 0470047, Japan
Titolo Testata:
JOURNAL OF VETERINARY MEDICAL SCIENCE
fascicolo: 9, volume: 63, anno: 2001,
pagine: 955 - 959
SICI:
0916-7250(200109)63:9<955:ILOSEI>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYTOCHROME-P-450; PROGESTERONE;
Keywords:
corpus luteum; placenta; ribbon seal; Steller sea lion; steroidogenic enzyme;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Ishinazaka, T Hokkaido Univ, Grad Sch Vet Med, Lab Wildlife Biol, Kita Ku,N18 W9, Sapporo, Hokkaido 0600818, Japan Hokkaido Univ N18 W9 Sapporo Hokkaido Japan 0600818 8, Japan
Citazione:
T. Ishinazaka et al., "Immunohistochemical localization of steroidogenic enzymes in the corpus luteum and the placenta of the ribbon seal (Phoca fasciata) and Steller sea lion (Eumetopias jubatus)", J VET MED S, 63(9), 2001, pp. 955-959

Abstract

To study the luteal and placental function of pinnipeds, we analyzed the localization of steroidogenic enzymes (P450scc, 3 beta 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 HSD were present in all luteal cells of both species. Almost all of the luteal cells were immunostained for P450arom, while P450scc and 3 beta HSD werenegatively 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 thesuborder Caniformia, placentae of both species do not have the capability for synthesizing progesterone in the latter half of active pregnancy period.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 03:54:46