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認知症における大脳皮質可塑性障害のメカニズムの解明と新たな早期診断法開発への応用

Publicly Offered Research

Project AreaPrevention of brain protein aging and dementia
Project/Area Number 15H01563
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionFukushima Medical University

Principal Investigator

村上 丈伸  福島県立医科大学, 公私立大学の部局等, 助教 (00403428)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsアルツハイマー病 / 軽度認知障害 / 長期増強 / シナプス可塑性 / 経頭蓋磁気刺激法 / アミロイド / タウ
Outline of Annual Research Achievements

アルツハイマー病(AD)ではアミロイドベータ(Aβ)の脳内蓄積によるシナプス可塑性の障害が指摘されている。またAβが認知症発症の10~15年前からすでに蓄積し始めていることがわかっている。本研究では、当院で開発されたヒト大脳皮質に可塑性変化を効率的に誘導できる4連発経頭蓋磁気刺激法(QPS)を用いて、認知症早期診断への応用に関する検討を行った。
右利きの認知症患者および正常認知機能高齢者を対象として、認知機能検査と髄液中総タウ、Aβ40/42測定を行った。左一次運動野へQPSを行い、長期増強(LTP)様効果を検証した。
早期AD4名、軽度認知障害(aMCI)5名、正常認知機能5名の記録が終了した。正常認知機能群と比べて早期AD群とaMCI群において、髄液中総タウ、AD indexの高値を認めた。またAβ比(Aβ40/Aβ42)は早期AD群が最も高く、次いでaMCI群、正常認知機能群の順であった。正常認知機能群ではQPSによりLTP様効果を誘導できたが、早期AD群やaMCI群ではLTP様効果の誘導が障害されていた。誘導されたLTP様効果とAβ-ratio、AD-index、総タウとには有意な負相関を認め、Aβ42とは有意な正相関を認めた。
QPSにより、比較的早期の段階でシナプス可塑性の機能破綻を捉えることができた。認知症早期診断に有用とされる髄液バイオマーカーと有意な相関を示したことから、経頭蓋磁気刺激法を用いた大脳皮質シナプス可塑性の検討が、認知症早期診断のバイオマーカーとして応用できる可能性が示唆された。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (24 results)

All 2017 2016 2015 Other

All Int'l Joint Research (1 results) Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 8 results,  Open Access: 4 results,  Acknowledgement Compliant: 6 results) Presentation (12 results) (of which Int'l Joint Research: 8 results,  Invited: 6 results) Book (1 results)

  • [Int'l Joint Research] Aalto University(フィンランド)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] A possible role of low regulatory T cells in anti-acetylcholine receptor antibody positive myasthenia gravis after bone marrow transplantation2017

    • Author(s)
      Fukatsu M, Murakami T, Ohkawara H, Saito S, Ikeda K, Kadowaki S, Sasaki I, Segawa M, Soeda T, Hoshi A, Takahashi H, Shichishima-Nakamura A, Ogawa K, Sugiura Y, Ohto H, Takeishi Y, Ikezoe T, Ugawa Y.
    • Journal Title

      BMC Neurology

      Volume: 17 Issue: 1 Pages: 93-93

    • DOI

      10.1186/s12883-017-0881-7

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Variability in Response to Quadripulse Stimulation of the Motor Cortex2016

    • Author(s)
      Nakamura K., Groiss S.J., Hamada M., Enomoto H., Kadowaki S., Abe M., Murakami T., Wiratman W., Chang F., Kobayashi S., Hanajima R., Terao Y., Ugawa Y.
    • Journal Title

      Brain Stimulation

      Volume: 9 Issue: 6 Pages: 859

    • DOI

      10.1016/j.brs.2016.01.008

    • URL

      https://pure.teikyo.jp/en/publications/e43b4d03-2322-4e3d-b65d-94790ac9e329

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A case of lymphomatosis cerebri mimicking inflammatory diseases2016

    • Author(s)
      Murakami T., Yoshida K., Segawa M., Yoshihara A., Hoshi A., Nakamura K., Ichikawa M., Suzuki O., Yokoyama Y., Toyoshima Y., Sugiura Y., Ito H., Saito K., Hashimoto Y., Kakita A., Takahashi H., Ugawa Y.
    • Journal Title

      BMC Neurology

      Volume: 16 Issue: 1 Pages: 128-128

    • DOI

      10.1186/s12883-016-0655-7

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Influence of phasic muscle contraction upon the quadripulse stimulation (QPS) aftereffects2016

    • Author(s)
      Kadowaki S, Enomoto H, Murakami T, Nakatani-Enomoto S, Kobayashi S, Ugawa Y
    • Journal Title

      Clin Neurophysiol

      Volume: 127 Issue: 2 Pages: 1568

    • DOI

      10.1016/j.clinph.2015.10.063

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] [<sup>123</sup>I]-Ioflupane SPECT in combination with MIBG myocardial scintigraphy in Parkinson’s disease: a case series study2016

    • Author(s)
      山田茜, 村上丈伸, 康英真, 飯國洋一郎, 森松暁史, 白田明子, 伊藤浩, 宇川義一
    • Journal Title

      Rinsho Shinkeigaku

      Volume: 56 Issue: 6 Pages: 400-406

    • DOI

      10.5692/clinicalneurol.cn-000848

    • NAID

      130005158854

    • ISSN
      0009-918X, 1882-0654
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Hemichorea-Hemiballism in a Patient with Temporal-Parietal Lobe Infarction Appearing After Reperfusion by Recombinant Tissue Plasminogen Activator2015

    • Author(s)
      Murakami T, Wada T, Sasaki I, Yoshida K, Segawa M, Kadowaki S, Yoshihara A, Kobayashi S, Hoshi A, Sugiura Y, Ugawa Y
    • Journal Title

      Move Disor Clinic Prac

      Volume: 2 Issue: 4 Pages: 426

    • DOI

      10.1002/mdc3.12198

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Left dorsal speech stream components and their contribution to phonological processing2015

    • Author(s)
      Murakami T., Kell C., Restle J., Ugawa Y., Ziemann U.
    • Journal Title

      The Journal of Neuroscience

      Volume: 35 Pages: 1411-1422

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Listeria monocytogenes meningoencephalitis in cerebrum2015

    • Author(s)
      Murakami T., Yoshida K., Namatame S., Iikuni Y., Morimatsu A., Yamada A., Sugiyama U., Takahashi K., Shirata A., Yamane K.
    • Journal Title

      Neurology and Clinical Neuroscience

      Volume: 3 Pages: 85-86

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 神経内科領域におけるPET/CT, SPECT/CTの有用性-パーキンソン病におけるドーパミントランスポーターイメージング2015

    • Author(s)
      伊藤浩, 村上丈伸, 石井士朗
    • Journal Title

      Innervision

      Volume: 30 Pages: 19-21

    • Related Report
      2015 Annual Research Report
  • [Journal Article] 抗グルタミン酸受容体抗体陽性脳炎2015

    • Author(s)
      村上丈伸, 宇川義一
    • Journal Title

      臨床神経科学

      Volume: 33 Pages: 32-36

    • Related Report
      2015 Annual Research Report
  • [Presentation] Expert Meeting: Experience in Autoimmune Encephalitis2017

    • Author(s)
      Murakami T.
    • Organizer
      Jakarta Neurology Exhibition Workshop and Symposium (JakNEWS)
    • Place of Presentation
      ジャカルタ インドネシア
    • Year and Date
      2017-03-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Brain and Language: What we learned from TMS studies.2017

    • Author(s)
      Murakami T.
    • Organizer
      Jakarta Neurology Exhibition Workshop and Symposium (JakNEWS)
    • Place of Presentation
      ジャカルタ インドネシア
    • Year and Date
      2017-03-25
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experiments and modelling pinpoint the cortical activation site of TMS.2017

    • Author(s)
      Laakso I., Murakami T., Hirata A., Ugawa Y.
    • Organizer
      2nd International Brain Stimulation Conference
    • Place of Presentation
      バルセロナ スペイン
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spike-timing dependent plasticity at spinal motoneurons.2017

    • Author(s)
      Yamashita A., Murakami T., Kadowaki S., Yoshida K., Ito E., Matsuda N., Chang F.Y., Hattori N., Miyai I., Ugawa Y.
    • Organizer
      2nd International Brain Stimulation Conference
    • Place of Presentation
      バルセロナ スペイン
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Paired associative quadripulse stimulation (PA-QPS) - a new protocol combining homo- and hetero-synaptic plasticity-.2017

    • Author(s)
      Wiratman W., Murakami T., Kobayashi S., Enomoto H., Ugawa Y.
    • Organizer
      2nd International Brain Stimulation Conference
    • Place of Presentation
      バルセロナ スペイン
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Contribution of the motor system to McGurk effect -event-related fMRI and TMS studies-.2016

    • Author(s)
      Murakami T., Fujiwara J., Sakamoto Y., Okamoto M., Mizuochi T., Iwabuchi T., Makuuchi M., Abe M., Kubo H., Matsuda N., Kobayashi S., Ito H., Takenoshita S., Ugawa Y.
    • Organizer
      Neuroscience 2016
    • Place of Presentation
      サンディエゴ アメリカ
    • Year and Date
      2016-11-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新しいQPS2016

    • Author(s)
      村上丈伸
    • Organizer
      第46回日本臨床神経生理学会学術大会
    • Place of Presentation
      郡山市 福島県
    • Year and Date
      2016-10-27
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Contribution of the motor system to the multisensory integration2016

    • Author(s)
      Murakami T.
    • Organizer
      第31回日本生体磁気学会大会
    • Place of Presentation
      金沢市 石川県
    • Year and Date
      2016-06-09
    • Related Report
      2016 Annual Research Report
  • [Presentation] TMSを用いた聴覚性言語処理に関する検討 -off-line virtual lesion法-2015

    • Author(s)
      村上丈伸
    • Organizer
      第45回日本臨床神経生理学会学術大会
    • Place of Presentation
      大阪市
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Auditory-motor mapping and phonological processing in the left dorsal speech stream2015

    • Author(s)
      Murakami T., Kell C., Restle J., Ugawa Y., Ziemann U.
    • Organizer
      Neuroscience 2015
    • Place of Presentation
      Chicago
    • Year and Date
      2015-10-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Alteration of corticobulbar excitability during speech perception.2015

    • Author(s)
      Murakami T.
    • Organizer
      International TMS Symposium
    • Place of Presentation
      福島市
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 経頭蓋磁気刺激法の基礎と言語研究への応用2015

    • Author(s)
      村上丈伸
    • Organizer
      国立障害者リハビリテーションセンター高次脳機能障害研究室研究会
    • Place of Presentation
      所沢市
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Book] 神経症候群Ⅵ-その他の神経疾患を含めて-第2版2015

    • Author(s)
      村上丈伸, 山根清美
    • Publisher
      日本臨牀
    • Related Report
      2015 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2022-02-01  

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