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endogenous neural stem cell expression and cerebral venous ischemia

Research Project

Project/Area Number 16K20023
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Neurosurgery
Research InstitutionNara Medical University

Principal Investigator

Takeshima Yasuhiro  奈良県立医科大学, 医学部, 助教 (60510203)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脳静脈虚血 / 神経幹細胞 / 内在性神経幹細胞 / 新生神経細胞 / 静脈梗塞 / 動物モデル / 光凝固 / 脳虚血 / 内因性神経幹細胞
Outline of Final Research Achievements

Cerebral venous ischemia is a rare but potentially significant complication of neurosurgical procedures. However, it is still unclear how intraoperative sacrifice of cerebral veins affects regional neural cell activations: especially endogenous neural stem cell. To elucidate its pathophysiology, we examine this in vivo study. Two cortical veins were occluded photochemically using rose Bengal dye in male Wister rats. BrdU was intermittently administrated intraperitoneally after the venous occlusion for several days. Immunohistochemical examination showed double positive (BrdU+NeuN+) cell was expressed around ischemic core at day 35 after the ischemia, and double positive (BrdU+Dcx+) cell was also expressed around ischemic core at day 15 after the ischemia. However, double positive (BrdU+Dcx+) cell was not observed at the periventricular zone. This study demonstrated new findings of the expression of regional endogenous neural stem cells after cortical venous ischemia.

Academic Significance and Societal Importance of the Research Achievements

脳静脈虚血において局所神経幹細胞の誘導と新生神経細胞の出現が確認できた。動脈虚血とは異なる分布であり、その誘導・発現メカニズムにも差異があると考えられる。脳静脈虚血の特殊性を示す結果であり、さらなる研究により神経幹細胞の修飾を利用した新規治療の開発につながる可能性がある。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2020 2019 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] C2 extradural schwannoma compressing the dominant internal jugular vein2020

    • Author(s)
      Nakajima T, Takeshima Y, Kim TK, Nakagawa I, Motoyama Y, Park YS, Nakase H.
    • Journal Title

      Acta Neurochir (Wien)

      Volume: 162(5) Issue: 5 Pages: 1181-1185

    • DOI

      10.1007/s00701-020-04294-w

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiple Osseous Loose Bodies Associated with Lumbar Isthmic Spondylolisthesis.2016

    • Author(s)
      Takeshima Y, Hanakita J, Takahashi T, Nakase H.
    • Journal Title

      World Neurosurg

      Volume: 95 Pages: 623-623

    • DOI

      10.1016/j.wneu.2016.06.073

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 脳静脈虚血における内在性神経幹細胞発現動態―新生成熟神経細胞の発現分布について―2019

    • Author(s)
      金泰均、竹島靖浩、中川一郎、本山靖、朴永銖、中瀬裕之、王寺幸輝
    • Organizer
      日本脳循環代謝学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Neurosugical strategy in consideration of cerebral venous circulation2018

    • Author(s)
      Nakase H, Nakagawa I, Nishimra F, Takeshima Y, Wajima D, Motoyama Y, Park YS
    • Organizer
      International Mt.BANDAI Symposium for Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ラット脳皮質静脈閉塞モデルを用いた脳静脈灌流障害の基礎的研究の成果と今後の展望2017

    • Author(s)
      金 泰均、竹島靖浩、輪島大介、中川一郎、本山靖、朴永銖、中瀬裕之
    • Organizer
      日本分子脳神経外科学会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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