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Elucidating the functional significance of mild oxidative stress on adult rat brain: friend or foe?

Research Project

Project/Area Number 25461727
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Psychiatric science
Research InstitutionKanazawa University

Principal Investigator

TODA SHIGENOBU  金沢大学, 大学病院, 講師 (00323006)

Co-Investigator(Renkei-kenkyūsha) IGUCI Yoshio  福島大学, 生体情報伝達研究所, 特任助教 (20452097)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords酸化ストレス / 成熟ラット脳 / 行動精神薬理 / 依存症 / グルタチオン / うつ病 / 意思決定 / 報酬系
Outline of Final Research Achievements

①Exposure of neonates to oxidative stress may increase the risk of psychiatric disorders such as schizophrenia in adulthood. However, the effects of moderate oxidative stress on the adult brain are not completely understood. To address this issue, we systemically administrated 2-cyclohexen-1-one (CHX) to adult rats to transiently reduce glutathione levels. As a result, we found that repeated administration of CHX to adult rats did not cause a specific mental disorder, but it induced long-term alterations in behavioral and cognitive functions, possibly related to specific neural correlates.
②Repeated co-administration of CHX with cocaine to rats did not induce any additional effect while the administration. Howwever, after a 3-weeks of withdrawal period, the animals displayed enhanced stereotypie without exception, suggesting that additional CHX treatment on cocaine strongly augmented late-developing behavioral sensitization.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (12 results)

All 2015 2014 2013

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (10 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Pre-stress performance in an instrumental training predicts post-stress behavioral alterations in chronically stressed rats.2015

    • Author(s)
      Iguchi Y, Kosugi S, Lin Z, Nishikawa H, Minabe Y, Toda S.
    • Journal Title

      Frontiers in Behave Neurosc

      Volume: 9 Pages: 119-119

    • DOI

      10.3389/fnbeh.2015.00119

    • NAID

      120006027759

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Repeated exposure of adult rats to transient oxidative stress induces various long-lasting alterations in cognitive and behavioral functions.2014

    • Author(s)
      Iguchi Y, Kosugi S, Nishikawa H, Lin Z, Minabe Y, Toda S.
    • Journal Title

      PloS One

      Volume: 9 Issue: 12 Pages: e114024-e114024

    • DOI

      10.1371/journal.pone.0114024

    • NAID

      120006027760

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] c-fos expression may be transiently involved in the transition from goal-directed action to habit in striatal medium spiny neurons while more ubiquitously expressed in striatal astrocytes probably representing goal-directed stage2015

    • Author(s)
      Shigenobu Toda, Lin Ziquao, Hiromi Nishikawa, Yoshio Iguchi, Bruce T Hope, and Yoshio Minabe
    • Organizer
      包括脳冬のシンポジウム
    • Place of Presentation
      一橋講堂、東京
    • Year and Date
      2015-12-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] Identification of the learning process and neuronal circuits for instrumental learning in rats2015

    • Author(s)
      Shigenobu Toda, Lin Ziquao, Hiromi Nishikawa, Yoshio Iguchi, Bruce T Hope, and Yoshio Minabe
    • Organizer
      International Symposium on Prediction and Decision Making
    • Place of Presentation
      東京大学、東京
    • Year and Date
      2015-10-30
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 依存症の生物学的メカニズム2015

    • Author(s)
      戸田重誠
    • Organizer
      第17回感情・行動・認知研究会
    • Place of Presentation
      新大阪ワシントンホテルプラザ、大阪
    • Year and Date
      2015-10-24
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 酸化ストレスが個体差と精神刺激薬反応性にもたらす影響2014

    • Author(s)
      戸田 重誠
    • Organizer
      アルコール・薬物依存関連学会合同学術総会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2014-10-03
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] 慢性酸化ストレス負荷がコカイン逆耐性現象に与える影響2014

    • Author(s)
      戸田 重誠
    • Organizer
      第110回日本精神神経学会学術総会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2014-06-26
    • Related Report
      2014 Research-status Report
  • [Presentation] Temporal and persistent effects of mild oxidative stress on motivational and cognitive functions in rats2013

    • Author(s)
      Shigenobu Toda, Sakurako Kosugi, Yoshio Iguchi, Yoshio Minabe
    • Organizer
      Annual meeting of society for Neuroscience
    • Place of Presentation
      コンベンションセンター、San Diego, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] Individual differences in pres-tress stare predict responses to chronic unpredictable stress in rats2013

    • Author(s)
      Iguchi Y, Sakurako K, Minabe Y, Toda S
    • Organizer
      Annual meeting of society for Neuroscience
    • Place of Presentation
      コンベンションセンター、San Diego, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] マイルドな酸化ストレスがラット線条体が関与する意思決定およびコカイン誘発性行動に与える影響2013

    • Author(s)
      戸田重誠、小杉桜子、井口善生、林子喬、三邉義雄
    • Organizer
      平成25年度アルコール・薬物依存関連学会合同学術総会
    • Place of Presentation
      岡山コンベンションセンター
    • Related Report
      2013 Research-status Report
  • [Presentation] Dissociable effects of a glutathione synthesis inhibitor on locomotor activity and stereotypy of cocaine sensitization2013

    • Author(s)
      Shigenobu Toda, Sakurako Kosugi, Yoshio Iguchi, and Yoshio Minabe
    • Organizer
      日本神経科学学会大会
    • Place of Presentation
      京都国際会議場
    • Related Report
      2013 Research-status Report
  • [Presentation] Individual differences in instrumental perfromance in naive rats predict different responses to chronic stress2013

    • Author(s)
      Yoshio Iguchi, Sakurako Kosugi, and Yoshio Minabe, Shigenobu Toda,
    • Organizer
      日本神経科学学会大会
    • Place of Presentation
      京都国際会議場
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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