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64113076.pdf1.69 MB
titleアフリカツメガエル卵成熟過程に対する過重力の影響
Other TitleEffects of the hypergravity on oocyte maturation of Xenopus laevis
Author(jpn)古野, 伸明; 田澤, 一朗; 柏木, 啓子; 川上, 智美; 吉留, 賢; 渡部, 稔; 山下, 雅道; 柏木, 昭彦
Author(eng)Furuno, Nobuaki; Tazawa, Ichiro; Kashiwagi, Keiko; Kawakami, Tomomi; Yoshitome, Satoshi; Watanabe, Minoru; Yamashita, Masamichi; Kashiwagi, Akihiko
Author Affiliation(jpn)広島大学大学院理学研究科附属両生類研究施設; 広島大学大学院理学研究科附属両生類研究施設; 広島大学大学院理学研究科附属両生類研究施設; 広島大学大学院理学研究科附属両生類研究施設; 鳥取大学医学部生命科学科生体情報機能学講座; 徳島大学総合科学部; 宇宙航空研究開発機構宇宙科学研究本部; 広島大学大学院理学研究科附属両生類研究施設
Author Affiliation(eng)Institute for Amphibian Biology, Graduate School Science, Hiroshima University; Institute for Amphibian Biology, Graduate School Science, Hiroshima University; Institute for Amphibian Biology, Graduate School Science, Hiroshima University; Institute for Amphibian Biology, Graduate School Science, Hiroshima University; Department of Biomedical Sciences, School of Life Science, Tottori University; Faculty of Integrated Arts and Sciences, Tokushima University; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA); Institute for Amphibian Biology, Graduate School Science, Hiroshima University
Issue Date2006-03
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構宇宙科学研究本部
Publication titleSpace Utilization Research: Proceedings of Space Utilization Symposium
宇宙利用シンポジウム
Volume22
Publication date2006-03
Languagejpn
eng
AbstractDeveloping oocytes arrest at the prophase of meiosis I, while the hormone progesterone restarts the process, leading to full maturation into a fertile egg. In this study we investigated the effects of hypergravity on this phase of maturation using oocytes of Xenopus. No differences were found between 2G, 5G and untreated controls regarding time to resumption of maturation, as judged by the appearance of a white spot in the animal hemisphere, whereas the white spot itself was larger and brighter in treated oocytes at time of appearance, and became even more pronounced as maturation proceeded. These findings suggest that although hypergravity does not affect the resumption of maturation, it might adversely affect the subsequent process and final results.
DescriptionMeeting Information: The Twenty-second Space Utilization Symposium (January 17-19, 2006: Science Council of Japan, Roppongi, Tokyo, Japan)
Meeting sponsors: The Science Council of Japan, The Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS)(JAXA)
会議情報: 第22回宇宙利用シンポジウム(2006年1月17日-19日, 日本学術会議6階会議室 六本木、東京)
共催: 日本学術会議
KeywordsXenopus, hypergravity, oocyte maturation, white spot
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
NCIDAN10324210
SHI-NOAA0064113076
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/18153


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