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2010 Fiscal Year Final Research Report

Experimental research on the development of a new therapy for bone injury via sympathetic nerve system

Research Project

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Project/Area Number 20300158
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionOsaka University

Principal Investigator

MATSUMOTO Takeshi  大阪大学, 基礎工学研究科, 准教授 (30249560)

Co-Investigator(Kenkyū-buntansha) TANAKA Masao  大阪大学, 基礎工学研究科, 教授 (40163571)
NAITO Hisashi  大阪大学, 基礎工学研究科, 助教 (40392203)
NAKAMURA Masanori  大阪大学, 基礎工学研究科, 特任准教授 (20448046)
Project Period (FY) 2008 – 2010
Keywords骨再生 / 血管新生 / 交感神経 / 放射光サブトラクションCT
Research Abstract

Early postoperative ambulation after fracture treatment is effective in mitigating disuse-mediated bone atrophy, thereby preventing elderly persons from a bedridden state or osteoporosis and assisting healthy bone development of juveniles to reduce the future risk of osteoporosis. In this study, we examined a potential of fracture treatment throughβ-adrenergic system, especially in the early stage of healing. In anesthetized rats, a full thickness unicortical defect was created in a tibial diaphysis, and hindlimb unloading was achieved through tail suspension. The animals were grouped into three categories : rats treated with none(C), with propranolol forβ-adrenergic blockade(PRO), and with desferrioxamine for the enhancement of angiogenesis. Five or ten days later the defect surgery, the animals were injected with zirconia-agarose contrast medium from the abdominal aorta. Then the defect region was cut out and scanned with synchrotron light with 17. 1 and 18. 1 keV for subtraction CT, immediately below and above the zirconia k-edge, respectively. Reconstructed images were segmented into bone and blood vessels. Five days after surgery, volume fraction of newly formed vessels was significantly higher in DFO but only tended to be higher in PRO than that in C. Both treatments had no effect on bone regeneration at this stage. Ten days after surgery, angiogenesis advanced to the similar degree in three groups ; however, volume fraction of regenerated bone was significantly higher in DFO but only tended to be higher in PRO than that in C. Further studies on the effective concentration or selectivity ofβ-adrenergic blockers are needed for their beneficial utilization.

  • Research Products

    (13 results)

All 2011 2010 2009 2008

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (9 results)

  • [Journal Article] Three-Dimensional Cortical Bone Microstructure in a Rat Model of Hypoxia-Induced Growth Retardation2011

    • Author(s)
      T. Matsumoto, N. Ando, T. Tomii, K. Uesugi
    • Journal Title

      Calcif. Tissue Int

      Volume: 88 Pages: 54-62

    • Peer Reviewed
  • [Journal Article] In Vivo CT Quantification of Trabecular Bone Dynamics in Mice After Sciatic Neurectomy Using Monochromatic Synchrotron Radiation2011

    • Author(s)
      T. Matsumoto, K. Nishikawa, M. Tanaka, K. Uesugi
    • Journal Title

      Calcif. Tissue Int

      Volume: 88 Pages: 432-441

    • Peer Reviewed
  • [Journal Article] ジルコニアk吸収端を利用したサブトラクション放射光CTによる骨欠損部の再生骨・血管新生の高解像度イメージン2011

    • Author(s)
      松本健志, 上杉健太朗
    • Journal Title

      Osteoporosis Jpn

      Volume: 19 Pages: 82-85

    • Peer Reviewed
  • [Journal Article] Computational Study on Trabecular Bone Remodeling in Human Femur Under Reduced Weight-Bearing Conditions2010

    • Author(s)
      J. Kwon, H. Naito, T. Matsumoto, M. Tanaka
    • Journal Title

      J. Biomech. Sci. Eng

      Volume: 5 Pages: 552-564

    • Peer Reviewed
  • [Presentation] サブトラクション放射光CTによる骨欠損修復早期の骨再生及び血管新生定量イメージング2011

    • Author(s)
      後藤大智, 松本健志, 内藤尚, 田中正夫
    • Organizer
      第34回日本バイオレオロジー学会年会
    • Place of Presentation
      大阪
    • Year and Date
      20110000
  • [Presentation] ジルコニアk吸収端を利用したサブトラクション放射光CTによる骨欠損部の再生骨/血管新生の高解像度イメージング2010

    • Author(s)
      松本健志, 上杉健太朗
    • Organizer
      第12回日本骨粗鬆症学会
    • Place of Presentation
      大阪
    • Year and Date
      20100000
  • [Presentation] K-edge Subtraction 3D Imaging of Cortical Bone Repair and Angiogenesis by Synchrotron Radiation CT With a Zirconia-based Contrast Agent in a Rat Tibial Defect Model2010

    • Author(s)
      T. Matsumoto, K. Uesugi
    • Organizer
      5th World Cong. Biomech.
    • Place of Presentation
      Singapore
    • Year and Date
      20100000
  • [Presentation] Bone Angiography by SRCT With Newly Developed Zirconia Contrast Medium : Application to Bone Defect Filling2010

    • Author(s)
      T. Matsumoto, K. Uesugi
    • Organizer
      10th Int. Conf. BSR & 6th Int Workshop MASR
    • Place of Presentation
      Melbourne
    • Year and Date
      20100000
  • [Presentation] Canal Network Structure and Oxygen Transport in Cortical Bone2009

    • Author(s)
      M. Tanaka, T. Matsumoto, H. Naito
    • Organizer
      3rd Japan-Switzerland Workshop Biomech.
    • Place of Presentation
      Engelberg
    • Year and Date
      20090000
  • [Presentation] Effect of Chronic Postnatal Exposure to Hypoxic Environment on Canal Network Formation in Infant Rat Cortical Bone2009

    • Author(s)
      T. Matsumoto, N. Ando, H. Naito, M. Tanaka, T. Tomii
    • Organizer
      2nd Joint Meeting of IBMS and ANZBMS
    • Place of Presentation
      Sydney
    • Year and Date
      20090000
  • [Presentation] Trabecular Bone Dynamics in Mice Subjected to Unilateral Sciatic Neurectomy Assessed by in vivoμCT Using Monochromatic Synchrotron Radiation2008

    • Author(s)
      T. Matsumoto, K. Nishikawa, H. Naito, M. Tanaka
    • Organizer
      Exp Biol. 2008
    • Place of Presentation
      San Diego
    • Year and Date
      20080000
  • [Presentation] 単色放射光CTによる骨形態解析2008

    • Author(s)
      松本健志
    • Organizer
      第35回日本臨床バイオメカニクス学会
    • Place of Presentation
      大阪
    • Year and Date
      20080000
  • [Presentation] 放射光CTによる骨の形態・生理解析2008

    • Author(s)
      松本健志
    • Organizer
      日本顕微鏡学会関西支部特別企画講演会
    • Place of Presentation
      岡崎
    • Year and Date
      20080000

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Published: 2013-07-31  

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