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Molecular mechanisms in tinnitus generation and new treatments

Research Project

Project/Area Number 17K11340
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Otorhinolaryngology
Research InstitutionNara Medical University

Principal Investigator

Kitahara Tadashi  奈良県立医科大学, 医学部, 教授 (30343255)

Co-Investigator(Kenkyū-buntansha) 岡安 唯  奈良県立医科大学, 医学部, 助教 (10596810)
山下 哲範  奈良県立医科大学, 医学部, 学内講師 (50588522)
阪上 雅治  奈良県立医科大学, 医学部附属病院, 研究員 (50745437)
伊藤 妙子  奈良県立医科大学, 医学部附属病院, 研究員 (60623486)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords耳鳴 / 内耳 / らせん神経節 / 侵害受容体 / 逃避行動実験 / アミノグリコシド / 音響外傷 / サリチル酸 / TRPV遺伝子 / 蝸牛有毛細胞 / 耳鳴動物モデル / 分子生物学 / 電気生理学 / めまい平衡障害 / 動物モデル / リハビリテーション
Outline of Final Research Achievements

Salicylate-induced tinnitus in rats could be visualized by behavioral and molecular experiments. Behavioral experiments were performed using an active avoidance task and molecular experiments were performed using a nociceptive receptor, transient receptor potential cation channel superfamily V (TRPV) in the rat auditory pathway. By means of these tinnitus visualization experiments, capsazepine, a specific antagonist of TRPV1, could be one of candidates to block tinnitus pathway and cure tinnitus. Further additional experiments are required.

Academic Significance and Societal Importance of the Research Achievements

耳鳴は目に見えない主観的な現象であり、客観的評価が難しいゆえに未だ有効な治療法が確立されていない。治療法の開発にはこの現象を可視化することが重要である。我々はラットを用いた耳鳴動物モデルを考案するとともに、耳鳴を評価する分子マーカーとして聴覚伝導路における痛み受容体TRPV1 (Transient receptor potential cation channel superfamily V-1) の発現について検討した。なお、今回の動物モデル作成にあたっては、大量投与により一過性の耳鳴を誘導すると報告されているサリチル酸を用いた。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (27 results)

All 2019 2018 2017 Other

All Journal Article (12 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 11 results,  Open Access: 5 results) Presentation (13 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Three-Dimensional Magnetic Resonance Imaging Reveals the Relationship Between the Control of Vertigo and Decreases in Endolymphatic Hydrops After Endolymphatic Sac Drainage With Steroids for Meniere's Disease2019

    • Author(s)
      Ito Taeko、Inui Hiroshi、Miyasaka Toshiteru、Shiozaki Tomoyuki、Matsuyama Shohei、Yamanaka Toshiaki、Kichikawa Kimihiko、Takeda Noriaki、Kitahara Tadashi
    • Journal Title

      Frontiers in Neurology

      Volume: 10 Pages: 0-0

    • DOI

      10.3389/fneur.2019.00046

    • NAID

      120006953544

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Differentiation of embryonic stem cells into inner ear vestibular hair cells using vestibular cell derived-conditioned medium2019

    • Author(s)
      Sakagami M, Ouji Y, Kawai N, Misu M, Yoshikawa M, Kitahara T.
    • Journal Title

      Biochem Biophys Rep

      Volume: 19 Pages: 100649-100649

    • DOI

      10.1016/j.bbrep.2019.100649

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Vestibular Compensation after Vestibular Dysfunction Induced by Arsanilic Acid in Mice2019

    • Author(s)
      Ito Taeko、Tatsumi Kouko、Takimoto Yasumitsu、Nishimura Tadashi、Imai Takao、Yamanaka Toshiaki、Takeda Noriaki、Wanaka Akio、Kitahara Tadashi
    • Journal Title

      Brain Sciences

      Volume: 9 Issue: 11 Pages: 329-329

    • DOI

      10.3390/brainsci9110329

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Temporal window of integration estimated by omission in bone-conducted ultrasound2019

    • Author(s)
      Okayasu Tadao、Nishimura Tadashi、Uratani Yuka、Yamashita Akinori、Nakagawa Seiji、Yamanaka Toshiaki、Hosoi Hiroshi、Kitahara Tadashi
    • Journal Title

      Neuroscience Letters

      Volume: 696 Pages: 1-6

    • DOI

      10.1016/j.neulet.2018.11.035

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sound Change Integration Error: An Explanatory Model of Tinnitus2018

    • Author(s)
      Noda Kazuhiro、Kitahara Tadashi、Doi Katsumi
    • Journal Title

      Frontiers in Neuroscience

      Volume: 12 Pages: 831-831

    • DOI

      10.3389/fnins.2018.00831

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cartilage Conduction Hearing Aids for Severe Conduction Hearing Loss2018

    • Author(s)
      Nishimura Tadashi、Hosoi Hiroshi、Saito Osamu、Shimokura Ryota、Yamanaka Toshiaki、Kitahara Tadashi
    • Journal Title

      Otology & Neurotology

      Volume: 39 Issue: 1 Pages: 65-72

    • DOI

      10.1097/mao.0000000000001644

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evidence of surgical treatments for intractable Meniere’s disease - review -2018

    • Author(s)
      Kitahara-T
    • Journal Title

      Auris Nasus Larynx

      Volume: 45 Issue: 3 Pages: 393-398

    • DOI

      10.1016/j.anl.2017.07.016

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] International consensus (ICON) on treatment of M?ni?re's disease2018

    • Author(s)
      Nevoux J.、Barbara M.、Dornhoffer J.、Gibson W.、Kitahara T.、Darrouzet V.
    • Journal Title

      European Annals of Otorhinolaryngology, Head and Neck Diseases

      Volume: 135 Issue: 1 Pages: S29-S32

    • DOI

      10.1016/j.anorl.2017.12.006

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] アルサニル酸を用いたマウス内耳破壊2017

    • Author(s)
      伊藤妙子、北原 糺、辰巳晃子、和中明生、山中敏彰
    • Journal Title

      耳鼻咽喉科ニューロサイエンス

      Volume: 31 Pages: 25-26

    • Related Report
      2017 Research-status Report
  • [Journal Article] Efficient induction of inner ear hair cell-like cells from mouse ES cells using combination of Math1 transfection and conditioned medium from ST2 stromal cells.2017

    • Author(s)
      Ouji Y, Sakagami M, Omori H, Higashiyama S, Kawai N, Kitahara T, Wanaka A, Yoshikawa M.
    • Journal Title

      Stem Cell Research

      Volume: 23 Pages: 50-56

    • DOI

      10.1016/j.scr.2017.06.013

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Identification of operculum and surgical results in endolymphatic sac surgery2017

    • Author(s)
      Kitahara-T, Yamanaka-T
    • Journal Title

      Auris Nasus Larynx

      Volume: 44 Issue: 1 Pages: 116-118

    • DOI

      10.1016/j.anl.2016.02.017

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of noise exposure on neonatal auditory brainstem response thresholds in pregnant guinea pigs at gestational periods2017

    • Author(s)
      C. Morimoto, K. Nario, T. Nishimura, R. Shimokura, H. Hiroshi, T. Kitahara
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 43 Issue: 1 Pages: 78-86

    • DOI

      10.1111/jog.13194

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A new procedure of chemical labyrinthectomy in mice by means of transtympanic injection of p-arsanilic acid2019

    • Author(s)
      Nakahara-K, Ito-T, Kitahara-T, Tatsumi-K, Wanaka-A
    • Organizer
      30th Barany Society Meeting in Uppsala
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Changes in vertigo frequency and endolymphatic volumes after endolymphatic sac drainage surgery2019

    • Author(s)
      Kitahara-T
    • Organizer
      15th Japan-Taiwan Conference on Otolaryngology-Head and Neck Surgery in Fukuoka
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ラット耳鳴モデルを使用した漢方研究2019

    • Author(s)
      北野公一、山下哲範、長谷芳樹、斎藤康彦、北原 糺
    • Organizer
      第35回日本耳鼻咽喉科漢方研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A new procedure of chemical labyrinthectomy in mice by means of transtympanic injection of p-arsanilic acid2018

    • Author(s)
      Nakahara-K, Ito-T, Kitahara-T, Tatsumi-K, Wanaka-A
    • Organizer
      30th Barany Society Meeting in Uppsala
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] New strategy for diagnosis of Meniere’s disease -volumetric measurement of endolymphatic space using three dimensional MRI-2018

    • Author(s)
      Ito-T, Inui-H, Inoue-T, Katsube-Y, Sakamoto-T, Yamanaka-T, Kasahara-M, Kitahara-T
    • Organizer
      30th Barany Society Meeting in Uppsala
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] MR volumetric measurement of endolymphatic space in patients without vertigo or hearing loss2018

    • Author(s)
      Inui-H, Ito-T, Sakamoto-T, Kitahara-T
    • Organizer
      30th Barany Society Meeting in Uppsala
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effects of the intra-endolymphatic sac application of steroids for intractable Meniere’s disease2018

    • Author(s)
      Kitahara-T, Yamanaka-T
    • Organizer
      Annual Meeting of Collegium ORLAS in Beijing
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] A six-month randomized trial of interventions of head-up sleep for intractable BPPV2018

    • Author(s)
      Kitahara-T
    • Organizer
      Eaton Peabody Labs SAP Seminars in Harvard University Eye & Ear
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 内耳造影MRIの2D評価法による内リンパ水腫解析2017

    • Author(s)
      北原 糺、伊藤妙子、乾 洋史、山中敏彰
    • Organizer
      第118回日本耳鼻咽喉科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 内耳造影MRIの3D評価法による内リンパ水腫解析2017

    • Author(s)
      伊藤妙子、乾 洋史、山中敏彰、北原 糺
    • Organizer
      第118回日本耳鼻咽喉科学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] 耳鳴統合的音響療法のための携帯型シンセサイザーの開発2017

    • Author(s)
      野田和裕、山下哲範、北原 糺、土井勝美
    • Organizer
      第3回耳鳴・難聴研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 心身症としてのめまい:前庭系と精神疾患の相互関連とめまい治療への応用2017

    • Author(s)
      北原 糺
    • Organizer
      第118回日本耳鼻咽喉科学会総会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Stress, stress hormone and Meniere's disease2017

    • Author(s)
      Kitahara-T
    • Organizer
      IFOS in Paris
    • Related Report
      2017 Research-status Report
    • Invited
  • [Book] めまいを診る2017

    • Author(s)
      北原 糺
    • Total Pages
      136
    • Publisher
      金芳堂
    • Related Report
      2017 Research-status Report
  • [Remarks] 奈良県立医科大学 耳鼻咽喉・頭頸部外科学/めまいセンター ホームページ

    • URL

      http://www.naramed-u.ac.jp/~oto/patient/memai-center.html

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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