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Verification and development of b-FGF sustained-release photogelling agent for neurosurgery

Research Project

Project/Area Number 22K09293
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

OTANI Naoki  日本大学, 医学部, 准教授 (20573637)

Co-Investigator(Kenkyū-buntansha) 浅野 正岳  日本大学, 歯学部, 教授 (10231896)
櫛引 俊宏  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 医用工学, 准教授 (30403158)
石原 美弥  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 医用工学, 教授 (30505342)
吉野 篤緒  日本大学, 医学部, 教授 (50256848)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2024: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords髄液漏 / 光ゲル化剤 / 術後感染症 / 開頭手術 / くも膜形成 / 髄膜炎 / 術後合併症 / 感染症 / 硬膜形成 / 静脈止血 / 動脈止血 / 脳神経外科手術 / CSF leakage / traumatic brain injury / hemostasis / 脳神経外科 / 止血 / basic FGF
Outline of Research at the Start

脳外科手術において髄液漏の防止、動脈・静脈止血に対する止血、橋静脈の張力増強などを確実に遂行しうる生体材料は皆無である。本研究では、光を数秒照射することでゲル化する光ゲル化剤に、血管新生の促進機能を付加すべく新規開発されたb-FGF徐放化ゲル化剤の脳外科手術への有用性を実証しつつ、更なる有用性の向上を目指して改良を加える。既に生体への親和性と安全性は実証しており、脳外科手術の安全性と併発症の軽減に寄与しうるものであり、治療成績向上と医療経済効果を生む可能性が期待できる。

Outline of Final Research Achievements

Postoperative meningitis in neurosurgery are very serious, and it is extremely important to prevent CSF leakage. Various artificial materials have not yet been obtained. On the other hand, the usefulness of photogelling agent, highly compatible with surface irregularities, can provide good adhesion, so there are high expectations for them as a variety of biological dressing materials.
In this study, we evaluated the usefulness of photogelling agents in preventing CSF leakage from the dural surface. A rat model of CSF leakage due to dural injury was used for compared to the conventional DuraGen group, there was no infiltration of inflammatory cells on the brain surface, and the dura mater covering effect was achieved, which suggests that dura mater covering with the primary focus on preventing cerebrospinal fluid leakage while ensuring safety may be possible.

Academic Significance and Societal Importance of the Research Achievements

従来のDuraGen群に比べても、脳表への炎症細胞の浸潤もなく、硬膜の被覆効果が得られることから安全性を担保しつつ確実な髄液漏防止を主眼とした硬膜被覆が可能になると思われる。ゆえに術後感染症の危険性が減少することで医療費用対効果が期待できる。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2026-01-16  

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