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SPECT findings as potential indicators of antiparkinsonian drug efficacy.

Research Project

Project/Area Number 19K17247
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionAichi Medical University

Principal Investigator

TAGUCHI SOUTAROU  愛知医科大学, 医学部, 助教 (50620035)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsパーキンソン病 / 脳血流 / SPECT / 神経機能画像学 / 核医学
Outline of Research at the Start

近年の飛躍的に発展したSPECTの画像統計解析を用いた我々の予備的検討では、抗パーキンソン病(PD)薬による症候改善に連関して脳血流が変化する可能性が示唆されている。これを基に、本研究では、同一日に2回脳血流SPECTを撮影することで、1回の抗PD薬投与による症候と脳血流の変化について解析する。これにより、我が国で汎用されているSPECTによる簡便で新たな抗PD薬効評価システムの確立を狙うのみならず、その過程で得られた脳血流反応がPD病態の解明につながる新たな知見をもたらすことをも期待する独自的・創造的試みが本研究である。

Outline of Final Research Achievements

Single-photon emission computed tomography (SPECT) measurement of regional cerebral blood flow (rCBF) allows evaluation of temporal changes in brain function, and using SPECT, we aimed to identify motor improvement-related rCBF changes in response to the administration of antiparkinsonian drugs. The rCBF increases in the substantia nigra (SN), lateral geniculate (LG) body, and medial geniculate (MG) body correlated with motor symptom improvement. Specifically, the drug-driven rCBF change in the MG was statistically significant, irrespective of cognitive function, but the significant changes in the LG and SN were not found in subjects with dementia. In conclusion, our SPECT study suggest that rCBF changes in these regions could be considered as candidates for clinical indicators for objective evaluation of disease progression.

Academic Significance and Societal Importance of the Research Achievements

本研究では、パーキンソン病(PD)の運動症候改善に連関した局所脳血流変化を示す領域がPD進行の客観的な臨床指標となり得る可能性を示唆されたほか、我が国で汎用されているSPECTによる簡便で新たな抗PD薬効評価システムの確立につながる一定の成果が得られたものと考える。また、脳血流変化の連関トポロジーを示すことでPD病態の解明につながる新たな知見をもたらしたものとも考えた。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Therapeutic Strategy for Improving Motor Complications of Parkinson’s Disease: Short-term Levodopa carbidopa Intestinal Gel Therapy using a Nasogastric Tube2024

    • Author(s)
      S Taguchi, T Nakura, M Doyu, et al.
    • Journal Title

      Journal of Movement Disorders

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Practical procedures in deep brain stimulation for Parkinson’s disease2023

    • Author(s)
      S Taguchi, T Nakura, H Saiki
    • Journal Title

      Video Journal of Movement Disorders

      Volume: 2 Pages: 17-17

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The utility of serum copper/zinc ratio for evaluating the pathophysiology of Alzheimer’s disease2023

    • Author(s)
      M Nakagawa, S Taguchi, M Izumi, et al
    • Journal Title

      J Aichi Med Univ Assoc

      Volume: 50 Pages: 1-11

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Subcortical infarction in a young adult with Hunter syndrome2022

    • Author(s)
      Kimura M, Azuma Y, Taguchi S, Takagi M, Mori H, Shimomura Y, Niwa JI, Doyu M, Okumura A.
    • Journal Title

      Brain Dev

      Volume: 44(5) Issue: 5 Pages: 343-346

    • DOI

      10.1016/j.braindev.2022.01.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Antiparkinsonian drugs as potent contributors to nocturnal sleep in patients with Parkinson's disease.2021

    • Author(s)
      Taguchi S, Koide H, Oiwa H, Hayashi M, Ogawa K, Ito C, Nakashima K, Yuasa T, Yasumoto A, Ando H, Fujikake A, Fukuoka T, Tokui K, Izumi M, Tsunoda Y, Kawagashira Y, Okada Y, Niwa JI, Doyu M.
    • Journal Title

      PLoS One.

      Volume: 16 Issue: 7 Pages: e0255274-e0255274

    • DOI

      10.1371/journal.pone.0255274

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Local field potentials in the subthalamic nucleus of patients with Parkinson's disease - Effect of the deep brain stimulation2023

    • Author(s)
      S Taguchi, T Nakura, H Saiki, S Miyachi, M Doyu
    • Organizer
      Movement Disorders Society 2023 International Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] パーキンソン病患者の視床下核における局所神経活動 -脳深部刺激療法導入の影響2023

    • Author(s)
      田口宗太郎、名倉崇弘、斎木英資ら
    • Organizer
      第17回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2023 Annual Research Report
  • [Presentation] L-ドパ チャレンジ テストは有用か?2023

    • Author(s)
      田口宗太郎
    • Organizer
      第17回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] パーキンソン病患者の視床下核における局所神経活動 -脳深部刺激療法導入の影響2023

    • Author(s)
      田口宗太郎、名倉崇弘、斎木英資ら
    • Organizer
      第64回日本神経学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] パーキンソン病患者における夜間不眠の実態-投与する薬剤による違い2020

    • Author(s)
      田口宗太郎、小出弘文、大岩宏子、林未久、伊藤千弘、小川和大、中島康自、湯淺知子、安本明弘、安藤宏明、角田由華、藤掛彰史、福岡敬晃、徳井啓介、岡田洋平、川頭祐一、丹羽淳一、泉 雅之、道勇 学
    • Organizer
      日本神経学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] パーキンソン病治療薬がもたらす 局所脳血流変化(第2報): 薬剤性幻覚との関連から2019

    • Author(s)
      田口宗太郎、田辺奈千、丹羽淳一、道勇 学
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] SPECT FINDINGS IN PARKINSON’S DISEASE: 2ND REPORT: RELEVANCE TO HALLUCINATIONS INDUCED BY ANTIPARKINSONIAN DRUGS2019

    • Author(s)
      S Taguchi, N Tanabe, J Niwa, M Doyu
    • Organizer
      XXIV World Congress of Neurology
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2025-01-30  

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