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

Experimental study of tendon adhesion prevention by a biocompatible polymer hydrogel.

Research Project

Project/Area Number 17591548
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Orthopaedic surgery
Research InstitutionThe University of Tokyo

Principal Investigator

MORO Toru  The University of Tokyo, Graduate School of Medicine, Project Research Associate, 大学院医学系研究科, 科学技術振興特任教員 (20302698)

Co-Investigator(Kenkyū-buntansha) TAKATORI Yoshio  The University of Tokyo, Hospital, Assistant Professor, 医学部附属病院, 助教授 (40179461)
ISHIHARA Kazuhiko  The University of Tokyo, Graduate School of Industry, Professor, 大学院工学系研究科, 教授 (90193341)
TEI Yuichi  The University of Tokyo, Graduate School of Medicine, Assistant Professor, 大学院医学系研究科, 助教授 (30345053)
SEICHI Atsushi  The University of Tokyo, Hospital, Lecturer, 医学部附属病院, 講師 (70236066)
MIURA Toshiki  The University of Tokyo, Hospital, Research Associate, 医学部附属病院, 助手 (20376479)
川口 浩  東京大学, 医学部附属病院, 助教授 (40282660)
中村 耕三  東京大学, 医学部附属病院, 教授 (60126133)
石山 典幸  東京大学, 医学部附属病院, 医員 (60376481)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2005: ¥2,100,000 (Direct Cost: ¥2,100,000)
Keywordssurgery / tendon injury / anti-adhesion material / biomaterial / biocompatibility / polymer hydrogel / a high molecular material
Research Abstract

2-methacryloyloxyethyl phosphorylcholine(MPC) polymer is our original biocompatible polymer whose side chain is composed of phosphorylcholine that resembles phospholipids of biomembrane. The MPC hydrogel can be generated by mixing aqueous solutions of poly (MPC-co-methacrylic acid)(PMA) and poly(MPC-co-n-butyl methacrylate)(PMB). The present study investigated the effects of the MPC-hydrogel application on tendon adhesion and healing.
1.Determination of the optimum condition for synthesis of MPC hydrogel
Various gels were generated by changing the molecular composition, molecular weight, structure of hydrophobic units, and evaluated in simulated body fluid and using rat model. The established optimal gel was used for the following studies 2-4.
2. Investigation of the effects of MPC hydrogel for tendon healing..
After a tendon was cut and sutured, the MPC hydrogel was applied to cover the injury site and the wound was closed.
Tendon healing was evaluated by macroscopic, histological and mechanical testings.
Macroscopic findings showed little or no adhesion was observed in the MPC group.
HE staining showed that gaps of the injured tendon in both groups were similarly bridged by collagen fibers.
There was no significant difference on tensile strength between two groups.
3. Investigation of the effects of MPC hydrogel for prevention of tendon adhesion.
After the same manner, tendon adhesion was evaluated by microscopic and mechanical testings.
The findings showed severe adhesion in the control group. In contrast, little or no adhesion was observed in the MPC group.
4. Evaluation of the lubrication property of MPC hydrogel covering a tendon suture site.
By measuring of the tendon excursion resistance after cyclic flexion of the operated toe, the excellent lubrication property of MPC hydrogel was revealed.
In conclusion, the MPC-hydrogel application immediately after the tendon suture may prevent the adhesion without impairing the healing.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (16 results)

All 2007 2006 2005 Other

All Journal Article (12 results) Patent(Industrial Property Rights) (4 results)

  • [Journal Article] Biocompatibility and drug release behavior of spontaneously formed phospholipid polymer hydrogels2007

    • Author(s)
      Kimura M, Takai M, Ishihara K
    • Journal Title

      Journal of Biomedical Materials Research 80A

      Pages: 45-54

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Prevention of tissue adhesion by a spontaneously formed phospholipid polymer hydrogel2007

    • Author(s)
      Kimura M, Konno T, Takai M, Ishiyama N, Moro T, Ishihara K
    • Journal Title

      Key Engineering Materials 342-343

      Pages: 777-780

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Tissue-compatible and adhesive polyion complex hydrogels composed of amphiphilic phospholipid polymers2007

    • Author(s)
      Kimura M, Takai M, Ishihara K
    • Journal Title

      Journal of Biomaterials Science Polymer Edition (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Biocompatibility and drug release behavior of spontaneously formed phospholipid polymer hydrogels.2007

    • Author(s)
      Kimura M, Takai M, Ishihara K.
    • Journal Title

      J Biomed Mater Res. 80A

      Pages: 45-54

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Prevention of tissue adhesion by a spontaneously formed phospholipid polymer hydrogel.2007

    • Author(s)
      Kimura M., Konno T., Takai M., Ishiyama N., Moro T., Ishihara K.
    • Journal Title

      Key Engineering Materials. 342-343

      Pages: 777-780

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Tissue-compatible and adhesive polyion complex hydrogels composed of amphiphilic phospholipid polymers2007

    • Author(s)
      Kimura M, Takai M, Ishihara K
    • Journal Title

      Journal of Biomaterials Science Polymer Edition in press

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 新しい医療デバイスとしての自発生成型ハイドロゲル2006

    • Author(s)
      木村美都奈, 高井まどか, 石原一彦
    • Journal Title

      未来材料 6 (9)

      Pages: 26-32

    • NAID

      40007471747

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 新しい医療デバイスとしての自発生成型ハイドロゲル2006

    • Author(s)
      木村美都奈, 高井まどか, 石原一彦
    • Journal Title

      未来材料 6(9)

      Pages: 26-32

    • NAID

      40007471747

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Spontaneously forming hydrogel from water-soluble random-and block-type phospholipid polymers2005

    • Author(s)
      Kimura M, Fukumoto K, Watanabe J, Takai M, Ishihara K
    • Journal Title

      Biomaterials 26 (34)

      Pages: 6853-6862

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Spontaneously forming hydrogel from water-soluble random-and block-type phospholipid polymers.2005

    • Author(s)
      Kimura M, Fukumoto K, Watanabe J, Takai M, Ishihara K.
    • Journal Title

      Biomaterials. 26

      Pages: 6853-6862

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Spontaneously Forming Hydrogel from Water-soluble Random- and Block-type Phospholipid Polymers2005

    • Author(s)
      Kimura M, Fukumoto K, Watanabe J, Takai M, Ishihara K
    • Journal Title

      Biomaterials 26(34)

      Pages: 6853-6862

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Tissue-compatible and adhesive polyion complex hydrogels composed of amphiphilic phospholipid polymers.

    • Author(s)
      Kimura M, Takai M, Ishihara K.
    • Journal Title

      J Biomater Sci Polym ED. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 組織癒着・関節拘縮防止材2006

    • Inventor(s)
      中村耕三, 石原一彦, 木村美都奈, 川口浩, 茂呂徹
    • Industrial Property Rights Holder
      国立大学法人東京大学
    • Filing Date
      2006-08-24
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 組織癒着・関節拘縮防止材2006

    • Inventor(s)
      中村耕三, 石原一彦, 木村美都奈, 川口浩, 茂呂徹
    • Industrial Property Rights Holder
      国立大学法人東京大学
    • Filing Date
      2006-08-24
    • Related Report
      2006 Annual Research Report
  • [Patent(Industrial Property Rights)] 組織癒着・関節拘縮防止材2005

    • Inventor(s)
      中村耕三, 石原一彦, 木村美都奈, 川口浩, 茂呂徹
    • Industrial Property Rights Holder
      国立大学法人東京大学
    • Filing Date
      2005-08-25
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 組織癒着・関節拘縮防止材2005

    • Inventor(s)
      中村 耕三, 石原 一彦, 木村 美都奈, 川口 浩, 茂呂 徹
    • Industrial Property Rights Holder
      国立大学法人東京大学
    • Filing Date
      2005-08-25
    • Related Report
      2005 Annual Research Report

URL: 

Published: 2005-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi