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2005 Fiscal Year Final Research Report Summary

Study of model for pathophysiology and mechanism for the treatment of the treatment resistant schizophrenia

Research Project

Project/Area Number 15591207
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Psychiatric science
Research InstitutionHokkaido University

Principal Investigator

ABEKAWA Tomohiro  Hokkaido Universiry, Hokkaido University Hospital, Inst., 大学病院, 助手 (80301901)

Co-Investigator(Kenkyū-buntansha) KUSUMI Ichiro  Hokkaido University, Hokkaido University Hospital, Lec., 大学病院, 講師 (30250426)
Project Period (FY) 2003 – 2005
Keywordsschizophrenia / treatment-resistant / model for pathophysiology / prefrontal cortex / psychostimulant
Research Abstract

We can use an NMDA receptor dysfunction model for the treatment-resistant schizophrenia, and methamphetamine model for the treatment-responsive model for schizophrenia. We hypothesized that increased glutamate levels in the medial prefrontal cortex(mPFC) and the nucleus accumbens(NA) induced by high dose of methamphetamine play an important role for the development of behavioral cross-sensitization to an NMDA receptor antagonist. We have shown that a protein kinase C inhibitor, staurosporine and a GABA stimulant, valproate block the development of the cross-sensitization to dizocilpine. Valproate and olanzapine potently, and risperidone moderately inhibited high dose of methamphetamine-induced delayed increases in glutamate levels in the mPFC and the NA.
These findings suggest that valproate, olanzapine, and risperidone may block the development of the treatment-resistance of schizophrenia.

  • Research Products

    (14 results)

All 2006 2005 2004 2003

All Journal Article (13 results) Book (1 results)

  • [Journal Article] Valproate blocks high-dose methamphetamine-induced behavioral cross-sensitization to locomotion-inducing effect of dizocilpine(MK-801), but not methamphetamine2006

    • Author(s)
      Ito K, Abekawa T, Koyama T
    • Journal Title

      Psychopharmacology (In press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 「研究成果報告書概要(和文)」より2006

    • Author(s)
      Ito K, Abekawa T, Koyama T
    • Journal Title

      Psychopharmacology (In press)

  • [Journal Article] Valproate blocks high-dose methamphetamine-induced behavioral cross-sensitization to dizocilpine(MK-801), but not methamphetamine2006

    • Author(s)
      Ito K, Abekawa T, Koyama T
    • Journal Title

      Psychopharmacology (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relationship between the development of cross-sensitization to MK-801 and a high dose of methamphetamine-induces delay increases in glutamate levels in the nucleus accumbes2006

    • Author(s)
      Ito K, Abekawa T, Koyama T
    • Journal Title

      Psychopharmacology (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Tougou shicchoushou no Shinkeihattatsushougai, Byoutaishinnkou to Kouseishinbyouyaku2006

    • Author(s)
      Abekawa T, Ito K, Koyama T
    • Journal Title

      Bunshi seishinigaku 6

      Pages: 28-36

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effect of the protein kinase C inhibitor, staurosporine, on the high dose of methamphetamine-induced behavioral sensitization to MK-8012005

    • Author(s)
      Fang YR, Abedkawa T, Li XB, Wang ZC, Inoue T, Koyama T
    • Journal Title

      Psychopharmacology 180

      Pages: 100-106

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 統合失調症の神経発達障害、病態進行と抗精神病薬2005

    • Author(s)
      安部川智浩, 伊藤侯輝, 小山司
    • Journal Title

      分子精神医学 6巻

      Pages: 28-36

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effect of the protein kinase C inhibitor, staurosporine, on the high dose of methamphetamine-induced behavioral sensitization to MK-801.2005

    • Author(s)
      Fang YR, Abekawa T, LiXB, Wang ZC, Inoue T, Koyama T
    • Journal Title

      Psychopharmacology 180

      Pages: 100-106

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 「統合失調症の警告期状態」に対する非定型抗精神病薬の使用経験2004

    • Author(s)
      安部川智浩, 北市雄士, 松山哲晃, 小山司
    • Journal Title

      精神神経学雑誌 106巻11号

      Pages: 1357-1372

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Treatment of The Premonitary State of Schizophrenia with atypical antipsychotics2004

    • Author(s)
      Abekawa T, Kitaichi Y, Matsuyama T, Koyama T
    • Journal Title

      Seisin Shinkeigaku Zassi Vol 106(11)

      Pages: 1357-1372

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] "Tougoushicchoushou no Keikokukijyoutai" ni taisuru Hiteikeikouseihinnbyouyaku no Shiyoukeikenn2004

    • Author(s)
      Abekawa T, Kitaichi Y, Matsuyama T, Koyama T
    • Journal Title

      Seishinn shinkeigaku-zasshi 106

      Pages: 1357-1372

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Gyakutaisei genshou to Koufunsei aminosannshinnkeidenntatsu2004

    • Author(s)
      Koyama T, Abekawa T, Honda M, Ito K
    • Journal Title

      Kakuseizai seishinnbyou to Mayakuizonn

      Pages: 68-78

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effect of NRA0045, a novel potent antagonist at dopamine D_4, 5-HT_<2A>, and α1 adrenalin receptors, and NRA10160, a selectiveD_4 receptor antagonist, on phencyclidine-induced behavior and glutamate release in rats2003

    • Author(s)
      Abekawa T, Honda M, Ito K, Koyama T
    • Journal Title

      Psychopharmacology 169

      Pages: 247-256

    • Description
      「研究成果報告書概要(和文)」より
  • [Book] 覚醒剤精神病と麻薬依存2004

    • Author(s)
      小山司, 安部川智浩, 本田稔, 伊藤耕一
    • Total Pages
      68-78
    • Publisher
      逆耐性現象と興奮性アミノ酸神経伝達
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2007-12-13  

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