Consulta: subjectFacets:"Areola"
Registros recuperados: 2
Data/hora: 11/06/2024 06:46:35

Areolae of the Placenta in the Antarctic Minke Whale (Balaenoptera bonaerensis)
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: SASAKI, Motoki; AMANO, Yoko; HAYAKAWA, Daisuke; TSUBOTA, Toshio; ISHIKAWA, Hajime; MOGOE, Toshihiro; OHSUMI, Seiji; TETSUKA, Masafumi; MIYAMOTO, Akio; FUKUI, Yutaka; BUDIPITOJO, Teguh; KITAMURA, Nobuo; 佐々木, 基樹; 手塚, 雅文; 宮本, 明夫; 北村, 延夫.
In this study, we examined the existence and structure of areolae and the steroidogenesis of areolar trophoblast cells in the Antarctic minke whale placenta morphologically and immunohistochemically. Placentas were collected from the 15th, 16th and 18th Japanese Whale Research Program under Special Permit in the Antarctic (JARPA) and 1st JARPA II organized by the Institute of Cetacean Research in Tokyo, Japan. The opening and cavity of fetal areolae formed by taller columnar trophoblast cells (areolar trophoblast cells) with long microvilli and a bright cytoplasm, as compared with the trophoblast cells of the chorionic villi interdigitating with the endometrial crypts, were recognized in observations of serial sections. The opening of the areolar cavity...
Palavras-chave: Antarctic minke whale; Areola; Balaenoptera bonaerensis; Placenta; Steroidogenesis.
Ano: 2014
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3861

Structure and functions of the placenta in common minke (Balaenoptera acutorostrata), Bryde’s (B. brydei) and sei (B. borealis) whales
Provedor de dados: Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)
Autores: KITAYAMA, Chiyo; SASAKI, Motoki; ISHIKAWA, Hajime; MOGOE, Toshihiro; OHSUMI, Seiji; FUKUI, Yutaka; BUDIPITOJO, Teguh; KONDOH, Daisuke; KITAMURA, Nobuo; 佐々木, 基樹; 近藤, 大輔; 北村, 延夫.
The structure and functions of placentas were examined in 3 species of rorqual whales, common minke (Balaenoptera acutorostrata), Bryde’s (B. brydei) and sei (B. borealis) whales, with the aim of confirming the structural characteristics of the chorion, including the presence of the areolar part, and clarifying steroidogenic activities and fetomaternal interactions in the placentas of these whales. Placentas were collected from the second phase of the Japanese Whale Research Program under Special Permit in the North Pacific (JARPN II). Histological and ultrastructural examinations revealed that these whale placentas were epitheliochorial placentas with the interdigitation of chorionic villi lined by monolayer uninucleate cells (trophoblast cells) and...
Palavras-chave: Areola; Aromatase; Placenta; Uteroferrin; Whale.
Ano: 2015
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4178