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Effects of neonatal dopamine depletion on pain mechanism in the adulthood

Research Project

Project/Area Number 23590721
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pain science
Research InstitutionKitasato University

Principal Investigator

OGATA Masanori  北里大学, 医療衛生学部, 講師 (20194425)

Co-Investigator(Kenkyū-buntansha) AKITA Hisanao  北里大学, 医療衛生学部, 准教授 (70118777)
NODA Kazuko  北里大学, 医療衛生学部, 講師 (60050704)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords神経科学 / 脳・神経 / 疼痛 / ドーパミン神経系 / 神経系機能発達 / 痛み / 不安 / 幼若期 / 痛覚過敏 / 不安関連行動 / 幼若期ドーパミン神経系傷害 / 不安・情動行動 / 痛覚 / 6-OHDA
Research Abstract

The aim of this study is to clarify effects of neonatal dopamine depletion on somatosensory nociceptive response and emotional response in the adulthood using behavioral and histological methods. The rats with neonatal dopamine depletion exhibited behavioral hyperalgesic response to chemical stimulation, but not mechanical and thermal stimulation. The behavioral hyperalgesic response associated with long lasting neuronal hyperactivities in the spinal neuron. Treatment of methamphetamine, which ameliorates motor hyperactivity induced by neonatal dopamine depletion, did not reverse the hyperalgesic response to chemical stimulation. Decreases of anxiety-related behavior in the rats with neonatal dopamine depletion were also observed in some behavioral tests.
These results suggest that dopaminergic neural system play a crucial part in development of mechanism for exhibiting normal nociceptive and anxiety-related behavior.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (7 results)

All 2014 2013 2012 2011 Other

All Presentation (7 results)

  • [Presentation] 幼若期ドーパミン神経系傷害は成熟後の不安関連行動の減少をもたらす2014

    • Author(s)
      緒形雅則
    • Organizer
      第91回日本生理学会大会
    • Place of Presentation
      鹿児島大学郡元キャンパス(鹿児島県鹿児島市)
    • Year and Date
      2014-03-18
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 幼若期ドーパミン神経系傷害ラットの成熟後における機械、熱、化学刺激に対する侵害受容性行動反応2013

    • Author(s)
      緒形雅則
    • Organizer
      第90回日本生理学会大会
    • Place of Presentation
      タワーホール船堀(東京都江戸川区)
    • Year and Date
      2013-03-28
    • Related Report
      2013 Final Research Report
  • [Presentation] Neonatal dopamine depletion-induced hyperalgesia in the adulthood was not reversed by methamphetamine2012

    • Author(s)
      Ogata Masanori
    • Organizer
      第14回国際疼痛学会
    • Place of Presentation
      ミラノコンベンショナルセンター(イタリア、ミラノ)
    • Year and Date
      2012-08-30
    • Related Report
      2013 Final Research Report
  • [Presentation] Reduced anxiety-related behavior in the adulthood of rat with neonatal dopamine depletion2011

    • Author(s)
      Ogata Masanori
    • Organizer
      北米神経科学会
    • Place of Presentation
      ワシントンコンベンショナルセンター(米国、ワシントンDC)
    • Year and Date
      2011-11-13
    • Related Report
      2013 Final Research Report
  • [Presentation] Reduced anxiety-related behavior in the adulthood of rat with neonatal dopamine depletion.2011

    • Author(s)
      Masanori Ogata
    • Organizer
      Society for Neuroscience
    • Place of Presentation
      Washington DC
    • Related Report
      2011 Research-status Report
  • [Presentation] Neonatal dopamine depletion-induced hyperalgesia in the adulthood was not reversed by methamphetamine

    • Author(s)
      Masanori Ogata
    • Organizer
      14th World Congress on Pain
    • Place of Presentation
      Milan, Italy
    • Related Report
      2012 Research-status Report
  • [Presentation] 幼若期ドーパミン神経系傷害ラットの成熟後における機械、熱、化学刺激に対する侵害受容性行動反応

    • Author(s)
      緒形 雅則
    • Organizer
      第90回日本生理学会大会
    • Place of Presentation
      東京
    • Related Report
      2012 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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