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Elucidation of the mechanism of delirium onset caused by dysfunction of the stress-sensitive factor NPAS4 and development of therapeutic drugs

Research Project

Project/Area Number 20K07181
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionNagoya City University

Principal Investigator

HIBI YOKO  名古屋市立大学, 医薬学総合研究院(医学), 教授 (70295616)

Co-Investigator(Kenkyū-buntansha) 木村 和哲  名古屋市立大学, 医薬学総合研究院(医学), 教授 (00423848)
片岡 智哉  千葉科学大学, 薬学部, 准教授 (20737928)
堀田 祐志  名古屋市立大学, 医薬学総合研究院(医学), 准教授 (90637563)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsNpas4 / せん妄 / Neuronal PAS domain 4 / ストレス / GABA / NPAS4 / 脳 / 発現誘導
Outline of Research at the Start

本研究では、ストレス負荷やせん妄リスク薬剤投与など、せん妄要因によるせん妄様行動発現を行動薬理学的手法により解析し、同時にストレス感受性の神経分化関連転写因子NPAS4の発現レベル解析や生化学的および組織学的解析を行い相互の関連性を確認する。また、NPAS4発現低下が脳内炎症反応や認知機能障害に及ぼす影響について、全身性NPAS4遺伝子ヘテロ欠損マウスやアミロイドβ誘発認知機能障害モデルを用いて追究する。さらにNPAS4やその下流を標的とした、せん妄治療薬の候補としてNPAS4を発現誘導する化合物の薬効解析を行う。

Outline of Final Research Achievements

NPAS4 is a transcription factor thought to be the key to the relationship between stress, GABAergic nervous system disorders, and the onset of psychiatric symptoms. In this study, we have approached this issue from both the basic analysis and the analysis of delirium onset using clinical data. In the basic analysis, we have focused on the analysis of compounds that induce Npas4 expression using cells and animals, as well as the brain-kidney crosstalk. In the field of clinical research, we focused on the possibility that NPAS4 may affect the relationship between benzodiazepine drugs and the onset of delirium, and investigated medical records regarding risk factors for delirium and drugs used. We investigated the effects of the combined use of opioids and benzodiazepine drugs in patients, but no clear trends were found.

Academic Significance and Societal Importance of the Research Achievements

せん妄は周術期や炎症性疾患や薬剤が誘発因子となって起こる精神神経疾患であり、脳の器質的障害もリスク因子である。本研究は、神経発達に関わりストレスで発現抑制する転写因子NPAS4とせん妄の関連を調べることを目的とした。研究期間に十分な成果を出すことはできなかったが、オピオイドとベンゾジアゼピン系薬剤を使用する患者のせん妄発現の調査を行い、また、末梢神経障害による排尿障害や、抗がん剤や抗菌薬による薬剤性急性腎障害とせん妄発現の関連などの臨床現場で重要なテーマへ、Npas4研究の視野を広げて取り組んでいく基盤を作ることができた。

Report

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

    (6 results)

All 2022

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results)

  • [Journal Article] Effect of Replicative Senescence on the Expression and Function of Transporters in Human Proximal Renal Tubular Epithelial Cells2022

    • Author(s)
      Sanagawa Akimasa、Hotta Yuji、Sezaki Rara、Tomita Natsumi、Kataoka Tomoya、Furukawa-Hibi Yoko、Kimura Kazunori
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 45 Issue: 11 Pages: 1636-1643

    • DOI

      10.1248/bpb.b22-00322

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2022-11-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Protective effects of tadalafil on damaged podocytes in an adriamycin-induced nephrotic syndrome model.2022

    • Author(s)
      Tomita N, Hotta Y, Naiki-Ito A, Sanagawa A, Kataoka T, Furukawa-Hibi Y, Takahashi S, Kimura K.
    • Journal Title

      J Pharmacol Sci.

      Volume: 149 Issue: 2 Pages: 53-59

    • DOI

      10.1016/j.jphs.2022.03.003

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Testosterone improved erectile function by upregulating transcriptional expression of growth factors in late androgen replacement therapy model rats2022

    • Author(s)
      Kataoka Tomoya、Ito Hiroto、Mori Taiki、Hotta Yuji、Sanagawa Akimasa、Maeda Yasuhiro、Furukawa-Hibi Yoko、Kimura Kazunori
    • Journal Title

      International Journal of Impotence Research

      Volume: - Issue: 4 Pages: 437-442

    • DOI

      10.1038/s41443-022-00627-8

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of High Testosterone Levels on Endothelial Function in Aorta and Erectile Function in Rats2022

    • Author(s)
      Kataoka Tomoya、Fukamoto Ayako、Hotta Yuji、Sanagawa Akimasa、Maeda Yasuhiro、Furukawa-Hibi Yoko、Kimura Kazunori
    • Journal Title

      Sexual Medicine

      Volume: 10 Issue: 5 Pages: 100550-100550

    • DOI

      10.1016/j.esxm.2022.100550

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluating the Effects of Low Carbohydrate and High Protein Diet on Erectile Function in Rats.2022

    • Author(s)
      Kataoka T, Hidaka J, Suzuki J, Mori T, Nakamura D, Hotta Y, Sanagawa A, Maeda Y, Furukawa-Hibi Y, Kimura K.
    • Journal Title

      Sex Med.

      Volume: 10 Issue: 2 Pages: 100500-100500

    • DOI

      10.1016/j.esxm.2022.100500

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gosha-Jinki-Gan Improved Erectile Dysfunction Caused by Anti-Cancer Agent Oxaliplatin by Decreasing Transcriptional Expression of Phosphodiesterase-5 in Rats.2022

    • Author(s)
      Kataoka T, Kawaki Y, Kito Y, Suzuki J, Mori T, Hotta Y, Sanagawa A, Kawade Y, Maeda Y, Furukawa-Hibi Y, Kimura K.
    • Journal Title

      Sex Med.

      Volume: 10 Issue: 2 Pages: 100484-100484

    • DOI

      10.1016/j.esxm.2021.100484

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2020-04-28   Modified: 2025-01-30  

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