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Clarification of mechanisms underlying the enlargement of intracranial aneurysms focused on drop-out of medial smooth muscle cells.

Research Project

Project/Area Number 24890097
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Cerebral neurosurgery
Research InstitutionKyoto University

Principal Investigator

AOKI TOMOHIRO  京都大学, 医学(系)研究科(研究院), 准教授 (40633144)

Project Period (FY) 2012-08-31 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords脳動脈瘤 / 細胞外基質 / 炎症反応 / マクロファージ / 脂質 / TNF-alpha / プロスタグランジン / FP / 脂肪蓄積 / くも膜下出血 / 平滑筋細胞 / プロスタグランディン
Research Abstract

Intracranial aneurysm (IA) is a major cause of subarachnoid hemorrhage (SAH), the most severe form of stroke.Histologically, IA is characterized as a lesion with excessive degenerative changes of arterial walls. However, the mechanisms regulating such degenerative changes of the media remains to be elucidated. In the present study, we have revealed the crucial role of inflammatory responses in IA formation, especially the degenerative changes of the media, mainly using rodent models of IAs. Further, in series of studies, we have clarified some potential mediators regulating or positively correlated with degeneration, such as lipid accumulation in adventitia of IA walls, prostaglandin F2a-FP signaling cascade and TNF-alpha signaling. In conclusion, the findings from the present study have suggested the role of inflammatory responses in degenerative changes in IA lesions.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • Research Products

    (12 results)

All 2014 2013 2012 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (11 results) (of which Invited: 4 results)

  • [Journal Article] Critical role of TNF-alpha-TNFR1signaling in intracranial aneurysm formation.2014

    • Author(s)
      Aoki T, Fukuda M, Nishimura M, Nozaki K, Narumiya S
    • Journal Title

      Acta Neuropathol Commun

      Volume: 2 Issue: 1 Pages: 34-34

    • DOI

      10.1186/2051-5960-2-34

    • NAID

      120005466621

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Vascular Wall Inflammation2014

    • Author(s)
      Tomohiro Aoki
    • Organizer
      ICS2014
    • Place of Presentation
      Zurich, Switzerland
    • Year and Date
      2014-06-02
    • Related Report
      2013 Final Research Report
  • [Presentation] 脳動脈瘤形成機序の解析―新規創薬への展望―2014

    • Author(s)
      青木友浩
    • Organizer
      第15回西埼玉脳神経集談会
    • Place of Presentation
      埼玉
    • Year and Date
      2014-04-18
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 脳動脈瘤形成機序の分子生物学的解析と新規創薬への展望2013

    • Author(s)
      青木友浩
    • Organizer
      第26回大橋ニューロカンファランス
    • Place of Presentation
      東京
    • Year and Date
      2013-10-03
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] 脳動脈瘤形成機序の分子生物学的解析と新規創薬への展望2013

    • Author(s)
      青木友浩
    • Organizer
      第14回西尾久ニューロカンファ
    • Place of Presentation
      東京
    • Year and Date
      2013-08-21
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] Molecular basis for the development of intracranial aneurysm2013

    • Author(s)
      Tomohiro Aoki
    • Organizer
      Vasospasm2013
    • Place of Presentation
      Lucerne,Switzerland
    • Year and Date
      2013-07-03
    • Related Report
      2013 Final Research Report
  • [Presentation] 脳血管壁の慢性炎症疾患としての脳動脈瘤2013

    • Author(s)
      青木友浩、成宮周
    • Organizer
      第13回脳血管障害セミナー
    • Place of Presentation
      東京
    • Year and Date
      2013-02-16
    • Related Report
      2013 Final Research Report
  • [Presentation] 基礎研究から得られた慢性炎症疾患としての脳動脈瘤形成仮説と新規治療法開発の展望2012

    • Author(s)
      青木友浩、成宮周
    • Organizer
      第28回日本脳神経血管内治療学会学術総会
    • Place of Presentation
      仙台
    • Year and Date
      2012-11-17
    • Related Report
      2013 Final Research Report
  • [Presentation] Molecular basis for the development of intracranial aneurysm.

    • Author(s)
      青木友浩
    • Organizer
      Vasospasm2013
    • Place of Presentation
      Lucerne, Switzerland
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Vascular Wall Inflammation

    • Author(s)
      青木友浩
    • Organizer
      ICS2014
    • Place of Presentation
      Zurich, Switzerland
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 基礎研究から得られた慢性炎症疾患としての脳動脈瘤形成仮説と新規治療法開発の展望

    • Author(s)
      青木友浩
    • Organizer
      第28回日本脳神経血管内治療学会学術総会
    • Place of Presentation
      仙台市
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 脳血管壁の慢性炎症疾患としての脳動脈瘤

    • Author(s)
      青木友浩
    • Organizer
      第13回脳血管障害セミナー
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
    • Invited

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Published: 2012-11-27   Modified: 2019-07-29  

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