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Elucidation of relationship between Alzheimer disease and dementia due to cerebral hemodynamic insufficiency using carotid endarterectomy

Research Project

Project/Area Number 18K09002
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionIwate Medical University

Principal Investigator

Ogasawara Kuniaki  岩手医科大学, 医学部, 教授 (00305989)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsアミロイド / アルツハイマー病 / 頸動脈狭窄 / 頸動脈内膜剥離術 / 認知機能 / PET / 脳循環不全 / 頚動脈内膜剥離術 / 脳循環代謝 / 頚動脈狭窄 / 血行再建 / 脳循環 / 脳循環不全性認知症
Outline of Final Research Achievements

Patients with carotid endarterectomy underwent amyloid β (F-florbetapir) and 15O gas PET. As a result, F-florbetapir PET depicted amyloid β deposition as decreased tracer uptake in the cerebral regions where cerebral blood flow and cerebral metabolic rate of oxygen were reduced and oxygen extraction fraction was elevated. In addition, chronic cerebral hypoperfusion due to severe atherosclerotic stenosis of the internal carotid artery does not increase amyloid β deposition in the affected cerebral hemisphere, but correction of cerebral hypoperfusion after carotid endarterectomy often reduces amyloid β deposition.

Academic Significance and Societal Importance of the Research Achievements

本研究のリサーチクエスチョンである「「頚動脈狭窄による脳循環不全が脳からのアミロイドの排出を阻害し、沈着したアミロイドが認知機能障害をきたす。また、その可逆性をヒトで検証する。」に関し、前半はこの検討を行うのに、アミロイドPETを行うことは必ずしも適していないことが示唆された。後半は、「頚動脈狭窄による脳循環不全の改善認知機能が改善する」メカニズムは、アルツハイマー病で沈着するアミロイドの洗い出しであることが示された。このことから脳循環を改善することによりアルツハイマー病は症状改善をもたらすのではないかというこれまでの仮説をうらずける結果と思われる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (36 results)

All 2021 2020 2019 2018

All Journal Article (24 results) (of which Int'l Joint Research: 14 results,  Peer Reviewed: 24 results,  Open Access: 11 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 3 results)

  • [Journal Article] Development of cerebral microbleeds in patients with cerebral hyperperfusion following carotid endarterectomy and its relation to postoperative cognitive decline2021

    • Author(s)
      Igarashi S, Ando T, Takahashi T, Yoshida J, Kobayashi M, Yoshida K, Terasaki K, Fujiwara S, Kubo Y, Ogasawara K
    • Journal Title

      J Neurosurg

      Volume: in press Issue: 4 Pages: 0-0

    • DOI

      10.3171/2020.7.jns202353

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of subjective and objective assessments on improvement in gait function after carotid endarterectomy2020

    • Author(s)
      Takahashi T., Fujiwara S., Igarashi S., Ando T., Chida K., Kobayashi M., Yoshida K., Koji T., Kubo Y., Ogasawara K.
    • Journal Title

      Sensors

      Volume: 20(22) Issue: 22 Pages: 6590-6590

    • DOI

      10.3390/s20226590

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting the consistency of intracranial meningiomas using apparent diffusion coefficient maps derived from preoperative diffusion-weighted imaging2020

    • Author(s)
      Miyoshi Kenya、Wada Tsukasa、Uwano Ikuko、Sasaki Makoto、Saura Hiroaki、Fujiwara Shunrou、Takahashi Fumiaki、Tsushima Eiki、Ogasawara Kuniaki
    • Journal Title

      Journal of Neurosurgery

      Volume: in press Issue: 3 Pages: 1-8

    • DOI

      10.3171/2020.6.jns20740

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improvement in gait function after carotid endarterectomy is associated with postoperative recovery in perfusion and neurotransmitter receptor function in the motor-related cerebral cortex: a 123I-iomazenil SPECT study.2020

    • Author(s)
      Sato S., Fujiwara S., Miyoshi K., Chida K., Kobayashi M., Kubo Y., Yoshida K., Terasaki K., Ogasawara K.
    • Journal Title

      Nuclear Medicine Communications.

      Volume: 41(11) Issue: 11 Pages: 1161-1168

    • DOI

      10.1097/mnm.0000000000001275

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Acetazolamide-Loaded Dynamic 7T MR Quantitative Susceptibility Mapping in Major Cerebral Artery Steno-Occlusive Disease: Comparison with PET.2020

    • Author(s)
      Fujimoto K, Uwano I, Sasaki M, Oshida S, Tsutsui S, Yanagihara W, Fujiwara S, Kobayashi M, Kubo Y, Yoshida K, Terasaki K, Ogasawara K
    • Journal Title

      AJNR Am J Neuroradiol

      Volume: in press Issue: 5 Pages: 785-791

    • DOI

      10.3174/ajnr.a6508

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of the Distal End of Carotid Plaque Using 3-Dimensional Fast Spin Echo T1-Weighted Magnetic Resonance Plaque Imaging.2020

    • Author(s)
      Chida K, Shimada Y, Fujimoto K, Yoshida J, Kojima D, Fujiwara S, Kobayashi M, Yoshida K, Sasaki M, Ogasawara K.
    • Journal Title

      J Stroke Cerebrovasc Dis

      Volume: in press Issue: 4 Pages: 104580-104580

    • DOI

      10.1016/j.jstrokecerebrovasdis.2020.104680

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Revascularisation surgery improves cognition in adult patients with moyamoya disease.2020

    • Author(s)
      Ando T, Shimada Y, Fujiwara S, Yoshida K, Kobayashi M, Kubo Y, Terasaki K, Ando S, Ogasawara K.
    • Journal Title

      J Neurol Neurosurg Psychiatry

      Volume: 91 Issue: 3 Pages: 332-334

    • DOI

      10.1136/jnnp-2019-321069

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Decrease in 18F-Florbetapir Accumulation in the Cerebral Hemisphere With Hypoperfusion and Misery Perfusion Due to Chronic Atherosclerotic Occlusion of the Internal Carotid Artery.2020

    • Author(s)
      Takahashi T, Kobayashi M, Fujiwara S, Kubo Y, Terasaki K, Ogasawara K.
    • Journal Title

      Clin Nucl Med

      Volume: 45 Issue: 2 Pages: e115-e116

    • DOI

      10.1097/rlu.0000000000002774

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reduction in amyloid β deposition on 18F-florbetapir positron emission tomography with correction of cerebral hypoperfusion after endarterectomy for carotid stenosis.2019

    • Author(s)
      Ogasawara K, Fujiwara S, Chida K, Terasaki K, Sasaki M, Kubo Y.
    • Journal Title

      Am J Nucl Med Mol Imaging.

      Volume: 9 Pages: 316-320

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Adverse effects of pre-existing cerebral small vessel disease on cognitive improvement after carotid endarterectomy2019

    • Author(s)
      Yoshida J., Yamashita F., Sasaki M., Yoshioka K., Fujiwara S., Kobayashi M., Yoshida K., Kubo Y., Ogasawara K.
    • Journal Title

      International Journal of Stroke

      Volume: - Issue: 6 Pages: 657-556

    • DOI

      10.1177/1747493019874732

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reduced hypoxic tissue and cognitive improvement after revascularization surgery for chronic cerebral ischemia.2019

    • Author(s)
      Shimada Y, Kobayashi M, Yoshida K, Terasaki K, Fujiwara S, Kubo Y, Beppu T, Ogasawara K.
    • Journal Title

      Cerebrovasc Dis.

      Volume: 47 Issue: 1-2 Pages: 57-64

    • DOI

      10.1159/000497244

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cilostazol may improve cognition better than clopidogrel in non-surgical adult patients with ischemic moyamoya disease: subanalysis of a prospective cohort2019

    • Author(s)
      Ando Satoshi、Tsutsui Shouta、Miyoshi Kenya、Sato Shinpei、Yanagihara Wataru、Setta Kengo、Chiba Takayuki、Fujiwara Shunrou、Kobayashi Masakazu、Yoshida Kenji、Kubo Yoshitaka、Ogasawara Kuniaki
    • Journal Title

      Neurological Research

      Volume: 41 Issue: 5 Pages: 480-487

    • DOI

      10.1080/01616412.2019.1580455

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Resolution of hypoxic tissue in cerebellar hemispheres after arterial bypass surgery in a patient with symptomatic bilateral vertebral artery occlusion: A 18F-FRP170 PET study.2019

    • Author(s)
      Oikawa K, Kobayashi M, Beppu T, Terasaki K, Ogasawara K.
    • Journal Title

      Clin Nucl Med.

      Volume: 44 Issue: 4 Pages: 295-296

    • DOI

      10.1097/rlu.0000000000002469

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of external carotid artery occlusion at declamping of the external and common carotid arteries during carotid endarterectomy on development of new postoperative ischemic cerebral lesions.2019

    • Author(s)
      Kobayashi M., Yoshida K., Kojima D., Oshida S., Fujiwara S., Kubo Y., Ogasawara K.
    • Journal Title

      J Vasc Surg.

      Volume: 69(2) Issue: 2 Pages: 454-461

    • DOI

      10.1016/j.jvs.2018.03.437

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Response by Oshida et al to Letter Regarding Article, “Wall Shear Stress and T1 Contrast Ratio Are Associated With Embolic Signals During Carotid Exposure in Endarterectomy”2018

    • Author(s)
      Oshida Sotaro、Mori Futoshi、Ogasawara Kuniaki
    • Journal Title

      Stroke

      Volume: 49 Issue: 12

    • DOI

      10.1161/strokeaha.118.023441

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of cerebral blood flow changes due to arterial bypass surgery on cognitive function in adult patients with symptomatic ischemic moyamoya disease.2018

    • Author(s)
      Yanagihara W, Chida K, Kobayashi M, Kubo Y, Yoshida K, Terasaki K, Ogasawara K.
    • Journal Title

      J Neurosurg.

      Volume: 1 Issue: 6 Pages: 1-9

    • DOI

      10.3171/2018.7.jns18149

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transient Symptomatic Downregulation of Cortical Neurotransmitter Receptor Function Due to Cerebral Hyperperfusion after Arterial Bypass Surgery for a Patient with Ischemic Moyamoya Disease2018

    • Author(s)
      SHIMADA Yasuyoshi、KOJIMA Daigo、YOSHIDA Jun、KOBAYASHI Masakazu、YOSHIDA Kenji、FUJIWARA Shunrou、OGASAWARA Kuniaki
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 58 Issue: 11 Pages: 481-484

    • DOI

      10.2176/nmc.cr.2018-0143

    • NAID

      130007511666

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Wall Shear Stress and T1 Contrast Ratio Are Associated With Embolic Signals During Carotid Exposure in Endarterectomy2018

    • Author(s)
      Oshida Sotaro、Mori Futoshi、Sasaki Makoto、Sato Yuiko、Kobayshi Masakazu、Yoshida Kenji、Fujiwara Shunrou、Ogasawara Kuniaki
    • Journal Title

      Stroke

      Volume: 49 Issue: 9 Pages: 2061-2066

    • DOI

      10.1161/strokeaha.118.022322

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of effects between clopidogrel and cilostazol on cerebral perfusion in nonsurgical adult patients with symptomatically ischemic moyamoya disease: subanalysis of a prospective cohort.2018

    • Author(s)
      Chiba T, Setta K, Shimada Y, Yoshida J, Fujimoto K, Tsutsui S, Yoshida K, Kobayashi M, Kubo Y, Fujiwara S, Terasaki K, Ogasawara K.
    • Journal Title

      J Stroke Cerebrovasc Dis.

      Volume: 27 Issue: 11 Pages: 3373-3379

    • DOI

      10.1016/j.jstrokecerebrovasdis.2018.07.041

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Accuracy of brain perfusion single-photon emission computed tomography for detecting misery perfusion in adult patients with symptomatic ischemic moyamoya disease.2018

    • Author(s)
      Setta K, Kojima D, Shimada Y, Yoshida J, Oshida S, Fujimoto K, Tsutsui S, Chiba T, Fujiwara S, Terasaki K, Ogasawara K.
    • Journal Title

      Ann Nucl Med.

      Volume: 32 Issue: 9 Pages: 611-619

    • DOI

      10.1007/s12149-018-1283-7

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Two-year clinical, cerebral hemodynamic, and cognitive outcomes of adult patients undergoing medication alone for symptomatically ischemic moyamoya disease without cerebral misery perfusion: a prospective cohort study.2018

    • Author(s)
      Miyoshi K, Chida K, Kobayashi M, Kubo Y, Yoshida K, Terasaki K, Ogasawara K.
    • Journal Title

      Neurosurgery

      Volume: 30 Issue: 6 Pages: 234-234

    • DOI

      10.1093/neuros/nyy234

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Preoperative brain temperature imaging on proton magnetic resonance spectroscopy predicts hemispheric ischemia during carotid endarterectomy for unilateral carotid stenosis with inadequate collateral blood flow2018

    • Author(s)
      Tsutsui Shouta、Nanba Takamasa、Yoshioka Yoshichika、Sasaki Makoto、Fujiwara Shunrou、Kobayashi Masakazu、Yoshida Kenji、Miyoshi Kenya、Sato Shinpei、Ogasawara Kuniaki
    • Journal Title

      Neurological Research

      Volume: 印刷中 Pages: 1-7

    • DOI

      10.1080/01616412.2018.1457130

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crossed cerebellar tracer uptake on acute-stage 123I-iomazenil SPECT imaging predicts 3-month functional outcome in patients with non-fatal hypertensive putaminal or thalamic hemorrhage2018

    • Author(s)
      Kojima D, Komoribayashi N, Omama S, Oikawa K, Fujiwara S, Kobayashi M, Kubo Y, Terasaki K, Ogasawara K
    • Journal Title

      Clin Nucl Med

      Volume: 印刷中 Issue: 6 Pages: 396-401

    • DOI

      10.1097/rlu.0000000000002068

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Preoperatively reduced cerebrovascular contractile reactivity to hypocapnia by hyperventilation is associated with cerebral hyperperfusion syndrome after arterial bypass surgery for adult patients with cerebral misery perfusion due to ischemic moyamoya disease.2018

    • Author(s)
      Sato S, Kojima D, Shimada Y, Yoshida J, Fujimato K, Fujiwara S, Kobayashi M, Kubo Y, Yoshida K, Terasaki K, Tsutsui S, Miyoshi K, Ogasawara K.
    • Journal Title

      J Cereb Blood Flow Metab

      Volume: 1 Issue: 6 Pages: 1021-1031

    • DOI

      10.1177/0271678x18757621

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Post-JET/COSS時代のバイパス術をどう考えるか?2021

    • Author(s)
      小笠原邦昭
    • Organizer
      Stroke 2021
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 虚血発症成人もやもや病に対する直接血行再建術後過灌流の発生メカニズムと認知機能に与える影響2020

    • Author(s)
      小笠原邦昭
    • Organizer
      第63回日本脳循環代謝学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 重度脳虚血のない虚血発症成人もやもや病に対する治療戦略2020

    • Author(s)
      小笠原邦昭
    • Organizer
      Stroke 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] 術後過灌流出現ハイリスクを持つ頚部頚動脈狭窄に対する外科治療2020

    • Author(s)
      小笠原邦昭
    • Organizer
      Stroke 2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 重度脳虚血のない虚血発症成人もやもや病に対する治療戦略2020

    • Author(s)
      小笠原邦昭
    • Organizer
      第79回日本脳神経外科学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 脳血管障害の外科治療に対する高磁場MRIの臨床応用2020

    • Author(s)
      小笠原邦昭
    • Organizer
      第48回日本磁気共鳴医学会大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Relation between reduction of hypoxic tissue and cognitive improvement after revascularization surgery in patients with chronic cerebral ischemia.2019

    • Author(s)
      Shimada Y., Kobayashi1 M., Yoshida K., Terasaki K., Fujiwara S., Kubo Y,, Beppu T., Ogasawara K
    • Organizer
      5th European Stroke Organization Conference (ESOC 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cerebral hyperperfusion-related inhibit of development of cerebral ischemic lesions after revascularization due to artery-to-artery emboli during carotid exposure in endarterectomy for patients chronic ischemia.2019

    • Author(s)
      Fujimoto K., Matsumoto Y., Oikawa K., Nomura J., Shimada Y., Fujiwara S., Terasaki K., Kobayashi M., Yoshida K., Ogasawara K
    • Organizer
      5th European Stroke Organization Conference (ESOC 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cerebral white matter abnormalities can affect cognitive improvement after carotid endarterectomy in patients with carotid artery steno-occlusive disease.2019

    • Author(s)
      Yoshida J., Yamashita F., SasakiM., Yoshioka Y., Fujiwara S., Kobayashi M., Yoshida K., Kubo Y., Ogasawara K.
    • Organizer
      Computer Assisted Radiology and Surgery(CARS)2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Feasibility of apparent brain temperature map by 1H-MRS to detect hemodynamic abnormality in patients with unilateral chronic major cerebral artery steno-occlusive disease.2019

    • Author(s)
      Namba T., Ogasawara K., *Yoshioka Y., Sasaki M., Uwano I., Ishigaki D., Kobayashi M., Yoshida K., Fujiwara S., Terasaki K.
    • Organizer
      BRAIN & BRAIN PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Crossed cerebellar tracer uptake on acute-stage 123I-iomazenil SPECT imagingpredicts 3-month functional outcome in patients with non-fatal hypertensive putaminal or thalamic hemorrhage.2019

    • Author(s)
      Kojima D., Komoribayashi N., Omama S., Oikawa K., Fujiwara S., Kobayashi M., Kubo Y., Terasaki K., Ogasawara K.
    • Organizer
      BRAIN & BRAIN PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Reduced hypoxic tissue and cognitive improvement after revascularization surgery for chronic cerebral ischemia.2019

    • Author(s)
      Shimada Y., Kobayashi M., Yoshida K., Terasaki K., Fujiwara S., Kubo Y., Beppu T., Ogasawara K.
    • Organizer
      BRAIN & BRAIN PET 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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