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Osmoregulatory regulation of corticosteroids in teleosts

Research Project

Project/Area Number 19870006
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Morphology/Structure
Research InstitutionThe University of Tokyo

Principal Investigator

KUSAKABE Makoto  The University of Tokyo, 海洋研究所, 助教 (40451893)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,125,000 (Direct Cost: ¥2,720,000、Indirect Cost: ¥405,000)
Fiscal Year 2008: ¥1,755,000 (Direct Cost: ¥1,350,000、Indirect Cost: ¥405,000)
Fiscal Year 2007: ¥1,370,000 (Direct Cost: ¥1,370,000)
Keywords浸透圧 / ステロイド代謝酵素 / コルチゾル / コルチゾン / サケ科魚類 / 鰓 / 生理学 / ストレス
Research Abstract

コルチコイドの標的細胞において、哺乳類では1型と2型ステロイド代謝酵素の一つである11β-水酸基脱水素酵素(11β-HSD)が存在しコルチゾルの標的器官で相互に作用しあうことにより、コルチゾル量を必要に応じて最適化する働きがあることが分かっている。そこで本研究では、真骨類においても2種類の11β-HSDが存在し、海水・淡水適応時にコルチゾルを必要に応じて鰓にて局所的に調節することにより、浸透圧調節機能を制御しているとの仮説を検証した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (2 results)

All 2008

All Presentation (2 results)

  • [Presentation] Molecular cloning, sequence analysis, and salinity regulation of gill 11β-hydrozysteroid dehydrogenase type 3 in salmonids2008

    • Author(s)
      Makoto Kusakabe, Steve McCormick, Yoshio Takei and Graham Young
    • Organizer
      Sixth International Symposium on Fish Endocrinology
    • Place of Presentation
      Calgary, Canada
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Roles in multiple types of 11β-hydroxysteroid dehydrogenases for osmoregulation in rainbow trout gill?2008

    • Author(s)
      Makoto Kusakabe, Steve McCormick, Yoshio Takei and Graham Young
    • Organizer
      Joint symposium on ocean and coastal sciences
    • Place of Presentation
      東京大学 海洋研究所
    • Related Report
      2008 Final Research Report 2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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