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MRI-based analyses of olfactory information processing mechanism underlying relationships between odor/pheromone substances and olfactory responses such as behaviors

Research Project

Project/Area Number 20K05842
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38030:Applied biochemistry-related
Research InstitutionKumamoto University

Principal Investigator

Yoshinaga Sosuke  熊本大学, 大学院生命科学研究部(薬), 講師 (00448515)

Co-Investigator(Kenkyū-buntansha) 寺沢 宏明  熊本大学, 大学院生命科学研究部(薬), 教授 (10300956)
武田 光広  熊本大学, 大学院生命科学研究部(薬), 助教 (90508558)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords匂い / フェロモン / 脳・神経 / MRI / 嗅覚
Outline of Research at the Start

本研究は、機能的MRI法を用いて、個々の匂い・フェロモンによる脳神経回路の活性化パターンについて、活性化部位の位置情報に時間軸を導入することにより、誘起される行動・情動・生理変化と関連づける情報処理メカニズムを明らかにすることを目的する。これらの相関をデータベース化することにより、性行動に影響する物質の同定および開発、さらには、実験用マウスの作製の促進や野生ネズミの繁殖制御につながることが期待される。

Outline of Final Research Achievements

Olfaction is one of the most important perceptions for animals to receive information from their environments, such as in case of species preservation and danger avoidance. The information is transmitted through odor and pheromone substances, resulting in emotional, behavioral or physiological changes. Here, we aimed to develop MRI-based fundamental technologies to acquire spatiotemporal information of odor-evoked brain activations. We successfully developed a computer-based odor stimulation system to give precisely time-regulated odor stimulations for independent component analyses under appropriate anesthesia conditions, resulting in improvement of sensitivity and discrimination abilities of odor responses.

Academic Significance and Societal Importance of the Research Achievements

本研究により、それぞれのフェロモンや匂い物質により誘起される性行動や生理的変化と、活性化される嗅神経ネットワークとの関係性を明らかにするための基盤技術の開発に成功した。この技術を利用して実験データを集積することにより、性行動に影響する物質の同定および開発、さらには、実験用マウスの作製の促進や野生ネズミの繁殖制御につながることが期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Whole-brain fMRI study of mice under medetomidine/ketamine anesthesia to identify brain regions activated by musk odors.2023

    • Author(s)
      Yoshinaga, S., Tsubakihara, Y., Fukumoto, T., Maita, S., Takeda, M., and Terasawa, H.
    • Journal Title

      Proc. Intl. Soc. Mag. Reson. Med.

      Volume: 31

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functional MRI study of olfactory responses evoked by musk odor in the mouse whole brain under medetomidine anesthesia.2021

    • Author(s)
      Tsubakihara, Y., Takeda, M., Yoshinaga, S., and Terasawa, H.
    • Journal Title

      Proc. Intl. Soc. Mag. Reson. Med.

      Volume: 29 Pages: 2929-2929

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Muscone-evoked activations in the whole brains of mice, studied by the BOLD method using periodic stimulation and independent component analysis.2020

    • Author(s)
      Hayashi, F., Takeda, M., Yuzuriha, N., Yoshinaga, S., and Terasawa, H.
    • Journal Title

      Proc. Intl. Soc. Mag. Reson. Med.

      Volume: 28 Pages: 3946-3946

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 機能的 MRI によるマウス嗅覚応答の研究:ムスク臭応答の独立成分解析2022

    • Author(s)
      椿原 由美子, 武田 光広, 吉永 壮佐, 寺沢 宏明
    • Organizer
      第16回日本分子イメージング学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 匂いと行動を関連づける脳活性化経路の機能的MRI:ムスク臭により誘因刺激したマウスの脳活性化部位の解析2021

    • Author(s)
      椿原由美子, 武田光広, 吉永壮佐, 寺沢宏明
    • Organizer
      第49回日本磁気共鳴医学会大会 前臨床MRIスタディグループ
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] fMRI study of brain activation pathways connecting odor stimulation and behaviors: Analysis of activations evoked by attractive odor, muscone2021

    • Author(s)
      Tsubakihara, Y., Takeda, M., Yoshinaga, S., and Terasawa, H.
    • Organizer
      第49回日本磁気共鳴医学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Whole brain functional MRI study of mice olfaction: from perception to behaviors2021

    • Author(s)
      Takeda, M., Tsubakihara, Y., Yoshinaga, S., and Terasawa, H.
    • Organizer
      ISMAR-APNMR 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 周期的匂い刺激とグループ独立成分解析を利用したマウス嗅覚応答の機能的 MRI解析2021

    • Author(s)
      椿原由美子, 武田光広, 吉永壮佐, 寺沢宏明
    • Organizer
      第15回日本分子イメージング学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Functional MRI study of olfactory responses evoked by musk odor in the mouse whole brain under medetomidine anesthesia2021

    • Author(s)
      Tsubakihara, Y., Takeda, M., Yoshinaga, S., and Terasawa, H.
    • Organizer
      2021 ISMRM & SMRT Annual Meeting & Exhibition
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 機能的MRIを用いた匂い刺激と行動を結びつけるマウスの脳活性化経路の解明:誘引性匂い物質ムスコンによる刺激と独立成分解析の適用2020

    • Author(s)
      武田光広、椿原由美子、吉永壮佐、寺沢宏明
    • Organizer
      第59回NMR討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] Functional MRI studies of mouse whole brain stimulated by mouse odor with independent component analysis2020

    • Author(s)
      Tsubakihara, Y., Takeda, M., Hayashi, F., Yuzuriha, N., Yoshinaga, S., and Terasawa, H.
    • Organizer
      第48回日本磁気共鳴医学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Muscone-evoked activations in the whole brains of mice, studied by the BOLD method using periodic stimulation and independent component analysis2020

    • Author(s)
      Hayashi, F., Takeda, M., Yuzuriha, N., Yoshinaga, S., and Terasawa, H.
    • Organizer
      2020 ISMRM (International Society for Magnetic Resonance in Medicine) & SMRT (Society for MR Radiographers &Technologists) Virtual Conference & Exhibition
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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