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The commonality of multiple cell death caused by continuous stress.

Research Project

Project/Area Number 26460280
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General anatomy (including histology/embryology)
Research InstitutionOsaka City University

Principal Investigator

OGAWA TOKIKO  大阪市立大学, 大学院医学研究科, 特任助教 (30382229)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords細胞死 / 慢性的ストレス / 下垂体中間葉細胞 / 肝細胞 / 慢性ストレス / 蛋白分解系 / 細胞死メカニズム / 微細形態 / 細胞・組織学 / ストレスモデル
Outline of Final Research Achievements

The multi-morphological cell death was founded in at least two organs of continuous stress (CS) loaded rat. One of them was appeared in the pituitary intermediate cells, melanotrophs, which was activated hormone production and secretion under CS. The other was detected in the liver. Some hepatocyte located perivenous area expressed necrotic morphology. In the CS rat, perivenous hepatocytes continuously increased lipid metabolism and this might induce oxidative stress. On the other hand, anti-oxidant reactions and intracellular recycling systems were activated as protective effects, but a part of hepatocyte seemed to be unavoidable from the stress. The dyeing processes both in hepatocytes and melanotrophs under CS were common characteristic. Such as cell death possibly become a risk factor for the organ homeostasis in the case of stress prolongation more long time.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (5 results)

All 2017 2016 2015

All Presentation (5 results)

  • [Presentation] 疲労モデルラットの肝細胞変性・細胞死は脂肪酸代謝の変化により引き起こされる2017

    • Author(s)
      小川登紀子、田中雅彰、木山博資、渡邊恭良
    • Organizer
      第13回日本疲労学会総会・学術集会
    • Place of Presentation
      名古屋大学野依記念学術交流館(愛知県名古屋市)
    • Year and Date
      2017-05-27
    • Related Report
      2016 Annual Research Report
  • [Presentation] 持続的ストレス負荷ラットの肝細胞変性メカニズムの検討2017

    • Author(s)
      小川登紀子、田中雅彰、木山博資、渡邊恭良
    • Organizer
      第122回日本解剖学会総会・学術集会
    • Place of Presentation
      長崎大学キャンパス(長崎県長崎市)
    • Year and Date
      2017-03-30
    • Related Report
      2016 Annual Research Report
  • [Presentation] 疲労モデルラットにおける肝細胞変性とストレス関連転写因子の発現2016

    • Author(s)
      小川登紀子、田中雅彰、木山博資、渡邊恭良
    • Organizer
      第12回日本疲労学会総会・学術集会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-05-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] 持続的ストレスによりラット肝細胞に起こるオートファジーの亢進と細胞変性2015

    • Author(s)
      小川登紀子、木山博資、田中雅彰、渡辺恭良
    • Organizer
      第11回日本疲労学会総会・学術集会
    • Place of Presentation
      山口県総合保健センター(山口県山口市)
    • Year and Date
      2015-05-15
    • Related Report
      2015 Research-status Report
  • [Presentation] 持続的ストレス負荷ラットに起こる下垂体メラノトロフ細胞死の多様性2015

    • Author(s)
      小川登紀子、渡辺恭良、木山博資
    • Organizer
      第120回日本解剖学会総会・全国学術集会および第92回日本生理学会大会合同大会
    • Place of Presentation
      神戸国際会議場・展示場(兵庫県・神戸市)
    • Year and Date
      2015-03-21
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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