• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of the function of the Glymphatic system in the human central nervous system

Research Project

Project/Area Number 18K08946
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

AKIYAMA YUKINORI  札幌医科大学, 医学部, 講師 (50404653)

Co-Investigator(Kenkyū-buntansha) 鈴木 拓  札幌医科大学, 医学部, 教授 (20381254)
堀尾 嘉幸  札幌医科大学, 医学部, 教授 (30181530)
鰐渕 昌彦  大阪医科薬科大学, 医学部, 教授 (30343388)
三上 毅  札幌医科大学, 医学部, 講師 (30372816)
三國 信啓  札幌医科大学, 医学部, 教授 (60314217)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsGlymphatic system / NPH / macromolecule / NAA / 水頭症 / 認知障害 / MRS / Glia / clearance system
Outline of Final Research Achievements

Using MRS, the concentrations of NAA and macromolecules in brain parenchyma (White matter) were measured and compared in normal volunteers and patients with normal pressure hydrocephalus.
The results showed that macromolecules were significantly increased and NAA was significantly decreased in patients with NPH, indicating that some kind of disturbance in the clearance system was affecting the disease.

Academic Significance and Societal Importance of the Research Achievements

Glymphatic systemが、特にげっ歯類では中枢神経系において存在し、髄液や組織間液がリンパ液の代用として働いているのではないかと考えられるようになってきた。しかし、ヒトではその証明がなされていなかったが、NPH患者にける脳内macromoleculesの蓄積が証明され、そのことが疾患の病態生理に何等かの役割を持っていることが証明され、間接的にヒトでのGlymphatic systemの存在を証明することに成功した。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2021

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

  • [Journal Article] Accumulation of Macromolecules in Idiopathic Normal Pressure Hydrocephalus2021

    • Author(s)
      Yukinori Akiyama, Rintaro Yokoyama, Hiroyuki Takashima, Yuka Kawata, Masayasu Arihara, Ryohei Chiba, Yusuke Kimura, Takeshi Mikami, Nobuhiro Mikuni
    • Journal Title

      Neurologia medico-chirurgica

      Volume: 61 Issue: 3 Pages: 211-218

    • DOI

      10.2176/nmc.oa.2020-0274

    • NAID

      130007998615

    • ISSN
      0470-8105, 1349-8029
    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi