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Impact of orofacial function on recovery from dysphagia caused by cerebrovascular disorders

Research Project

Project/Area Number 21H03128
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 57050:Prosthodontics-related
Research InstitutionNiigata University

Principal Investigator

Inoue Makoto  新潟大学, 医歯学系, 教授 (00303131)

Co-Investigator(Kenkyū-buntansha) 辻村 恭憲  新潟大学, 医歯学系, 准教授 (00548935)
那小屋 公太  新潟大学, 医歯学系, 助教 (10806491)
照沼 美穂  新潟大学, 医歯学系, 教授 (50615739)
真柄 仁  新潟大学, 医歯学総合病院, 講師 (90452060)
吉原 翠  新潟大学, 医歯学系, 助教 (70882330)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2022: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2021: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords歯科 / 嚥下 / モデル動物 / 脳梗塞 / 外頸動脈 / カリウムイオン / 顎二腹筋後腹 / 咀嚼 / 摂食嚥下障害 / 神経障害 / 行動学的評価 / 脳血管疾患 / 廃用
Outline of Research at the Start

超高齢社会を迎えた日本では摂食嚥下障害患者が大きく増加している.多くの臨床報告で摂食嚥下運動に寄与する咀嚼・口腔機能の重要性が示唆されているものの,科学的根拠は未だ乏しい.中でも摂食嚥下障害の主たる原因疾患である脳梗塞に伴う病態を摂食嚥下の中枢・末梢機能を含めて検討した研究はほとんどない.本研究は主に脳梗塞モデル動物を用い,脳梗塞がもたらす摂食嚥下機能への影響,その回復過程において口腔や咀嚼の駆使が機能や形態におよぼす影響を,行動学,神経生理学,組織学的に明らかにする.

Outline of Final Research Achievements

In the middle cerebral artery occlusion model, no obvious swallowing disorders were observed, but ligation of the ipsilateral external carotid artery during the preparation significantly reduced the peak of the digastric reflex, and there was a large variability in the effects on muscle activity in the innervated area. This suggests compensation for blood supply from collateral circulation of the internal carotid artery, which varies greatly among individuals. Potassium ion was suggested to be the most effective peripheral stimulation during recovery from stroke, and the involvement of KATP channels and Kir3.1 channels localized in the nodose ganglion and peripheral area was suggested. The activity patterns of the digastric muscle and the sternohyoid muscle and direct projections from the swallowing central pattern generator was clarified, which have not been reported previously.

Academic Significance and Societal Importance of the Research Achievements

摂食嚥下障害の原因疾患として最も多いのは脳血管疾患であり,ことに中大脳動脈の梗塞症例では摂食関連の感覚運動領域の麻痺に伴い摂食嚥下障害が遷延する.これに対して,多くの臨床報告がリハビリテーション効果を示唆しているものの,改善をもたらすプロセスについては未だ科学的根拠は不明である.今回の基礎研究は,脳血管モデル動物を使用する際に留意すること,リハビリテーションの過程でいかなる刺激が有効となり得るか,またリハビリテーション効果を明らかにする上でいかなる運動機能や筋を評価するべきかについての基礎データを提供できたという点でその意義は高いと言える.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 2022

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (17 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results)

  • [Journal Article] Short-term and long-term effects of unilateral external carotid artery ligation on orofacial functions in rats2024

    • Author(s)
      Chotirungsan Titi、Tsutsui Yuhei、Saka Nobuaki、Kawada Satomi、Dewa Nozomi、Magara Jin、Tsujimura Takanori、Inoue Makoto
    • Journal Title

      American Journal of Physiology-Gastrointestinal and Liver Physiology

      Volume: 326 Issue: 3 Pages: G318-G329

    • DOI

      10.1152/ajpgi.00226.2023

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Modulation of reflex responses of the anterior and posterior bellies of the digastric muscle in freely moving rats2023

    • Author(s)
      Chotirungsan Titi、Tsutsui Yuhei、Saka Nobuaki、Kawada Satomi、Dewa Nozomi、Suzuki Taku、Magara Jin、Tsujimura Takanori、Inoue Makoto
    • Journal Title

      Journal of Oral Rehabilitation

      Volume: 50 Issue: 11 Pages: 1270-1278

    • DOI

      10.1111/joor.13537

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] モデル動物を用いた摂食嚥下運動の観察2023

    • Author(s)
      井上 誠
    • Organizer
      第65回歯科基礎医学会学術大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 口腔咽頭筋の機能-咀嚼嚥下運動における口腔と咽頭の機能連関を考える-2023

    • Author(s)
      井上 誠
    • Organizer
      日本睡眠学会第45回定期学術集会・第30回日本時間生物学会学術大会合同大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Recent findings about swallowing initiation and movements2023

    • Author(s)
      Makoto Inoue
    • Organizer
      Neuroscience 2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Transection of Facial Nerve’s Digastric Branch as a Model for Inducing Denervation Related Atrophy in the Posterior Digastric Muscle of Rats2023

    • Author(s)
      Titi Chotirungsan, Yuhei Tsutsui, Satomi Kawada, Nozomi Dewa, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      Neuroscience 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Activation of motor neurons of posterior belly of digastric muscle during swallowing2023

    • Author(s)
      Yuhei Tsutsui, Takanori Tsujimura, Kajita Piriyaprasath, Titi Chotirungsan, Jin Magara, Keiichiro Okamoto, Kensuke Yamamura, Makoto Inoue
    • Organizer
      Neuroscience 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Digastric Branch of Facial Nerve Transection-Model for Denervation-induced post-Dig Muscle Atrophy in Rats2023

    • Author(s)
      Titi Chotirungsan, Yuhei Tsutsui, Satomi Kawada, Nozomi Dewa, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      第29回日本摂食嚥下リハビリテーション学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Activation of possible motor neurons of posterior belly of digastric muscle during swallowing2023

    • Author(s)
      Yuhei Tsutsui, Takanori Tsujimura, Kajita Piriyaprasath, Titi Chotirungsan, Jin Magara, Keiichiro Okamoto, Kensuke Yamamura, Makoto Inoue
    • Organizer
      第29回日本摂食嚥下リハビリテーション学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Activation of posterior belly of digastric muscle during swallowing2023

    • Author(s)
      Yuhei Tsutsui, Takanori Tsujimura, Kajita Piriyaprasath, Titi Chotirungsan, Jin Magara, Keiichiro Okamoto, Kensuke Yamamura, Takeyasu Maeda, Makoto Inoue
    • Organizer
      31st Dysphagia Research Society Annual Meeting
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of age-associated diseases on chew and swallow in vivo animal model2022

    • Author(s)
      井上 誠,辻村恭憲,真柄 仁,中嶋優太,Titi Chotirungsan,筒井雄平,川田里美
    • Organizer
      第64回歯科基礎医学会学術大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Modulation of digastric reflex responses during various situations in conscious rats2022

    • Author(s)
      Titi Chotirungsan, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      Neuroscience2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Functional role of posterior digastric muscle during deglu1tition2022

    • Author(s)
      Yuhei Tsutsui, Takanori Tsujimura, Kajita Piriyaprasath, Titi Chotirungsan, Jin Magara, Keiichiro Okamoto, Kensuke Yamamura, Takeyasu Maeda, Makoto Inoue
    • Organizer
      Neuroscience2022
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] hort-Term and Long-Term Effects of Unilateral External Carotid Artery Ligation on Masticatory and Swallowing Functions in Rats2022

    • Author(s)
      Titi Chotirungsan, Yuhei Tsutsui, Nobuaki Saka, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      European Society of Swallowing Disorder, 12th annual congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modulation of Digastric Reflex Responses during Chewing, Licking and Swallowing in conscious rats2022

    • Author(s)
      Titi Chotirungsan, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      第68回日本顎口腔機能学会学術大会
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] ラットの嚥下における顎二腹筋後腹の活動2022

    • Author(s)
      筒井雄平,辻村恭憲,Titi Chotirungsan,真柄仁,井上誠
    • Organizer
      第68回日本顎口腔機能学会学術大会
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] Functional role of posterior belly of digastric muscle in swallowing in the rat2022

    • Author(s)
      Yuhei Tsutsui, Titi Chotirungsan, Satomi Kawada, Kajita Piriyaprasath, Jin Magara, Takanori Tsujimura, Keiichiro Okamoto, Kensuke Yamamura, Makoto Inoue
    • Organizer
      第28回日本摂食嚥下リハビリテーション学会学術大会
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] Effects of Unilateral External Carotid Artery Ligation on Mastication and Swallowing in Rats2022

    • Author(s)
      Titi Chotirungsan, Yuhei Tsutsui, Nobuaki Saka, Takanori Tsujimura, Jin Magara, Makoto Inoue
    • Organizer
      第28回日本摂食嚥下リハビリテーション学会学術大会
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] Short-Term and Long-Term Effects of Unilateral External Carotid Artery Ligation on Masticatory and Swallowing Functions in Rats2022

    • Author(s)
      Titi Chotirungsan, Yuhei Tsutsui, Nobuaki Saka, Jin Magara, Takanori Tsujimura, Makoto Inoue
    • Organizer
      European Society of Swallowing Disorder, 12th annual congress
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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