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The effects of immature cells in the hypothalamus on food intake and weight gain

Research Project

Project/Area Number 21591490
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

INOUE Yuichirou  奈良県立医科大学, 医学部, 研究員 (40326343)

Co-Investigator(Kenkyū-buntansha) SADAMATSU Miyuki  奈良県立医科大学, 医学部, 准教授 (90252387)
MAKINODAN Manabu  奈良県立医科大学, 医学部, 助教 (00510182)
YAMAUCHI Takahira  奈良県立医科大学, 医学部, 助教 (20550817)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsオランザピン / 体重増加 / ガラニン / 脂肪細胞 / Olig2
Research Abstract

Weight gain is increasingly recognized as an unwanted side effect of atypical antipsychotic drugs. To explore the mechanisms underlying this side effect, we examined the effects of olanzapine, an atypical antipsychotic drug, on cellular proliferation and differentiation in the adult mouse hypothalamus.
We found that the treatment increased BrdU-incorporating cell numbers in the hypothalamus, while the same regimen with haloperidol or control had little effect on cellular proliferation. Double-labeling immunohistochemistry revealed that the majority of the BrdU-positive cells were also Olig2-or APC-positive, indicating that oligodendrocyte-lineage cells were generated in response to olanzapine treatment.
These findings suggest a possible link between gliogenesis in the hypothalamus and weight gain following olanzapine treatment

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (4 results)

All 2011 2010

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results)

  • [Journal Article] Olanzapine increaes cell mitotic activity and oligodendrocyte-lineage cells in the hypothalamus2010

    • Author(s)
      Takahira Yamauchi, Kouko Tatsumi, Manabu Makinodan, Souhei Kimoto, Michihiro Toritsuka, Hiroaki Okuda, Toshifumi Kishimoto, Akio Wanaka
    • Journal Title

      Neurochemistry International

      Volume: 57 Pages: 565-571

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Presentation] Olanzapine increases cell mitotic activity and oligodendrocyte-lineage cells in the hypothalamus2011

    • Author(s)
      山内崇平
    • Organizer
      第2回アジア神経精神薬理学会
    • Place of Presentation
      韓国・ソウル
    • Related Report
      2011 Final Research Report
  • [Presentation] Olanzapine treatment induces Olig2-positive cell proliferation in the hypothalamus with weight gain and enlarged fat tissues2010

    • Author(s)
      山内崇平
    • Organizer
      NEUROSCIENCE 2010
    • Place of Presentation
      アメリカ・San Diego
    • Related Report
      2011 Final Research Report
  • [Presentation] Olanzapine treatment induces Olig2-positive cell proliferation in the hypothalamus with weight gain and enlarged fat tissues2010

    • Author(s)
      山内崇平
    • Organizer
      第33回日本神経科学大会
    • Place of Presentation
      日本・Kobe
    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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