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To investigate the clinical application of alpha-defensin in stool in the objective evaluation of radiation enteritis

Research Project

Project/Area Number 25461899
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionHokkaido Cancer Center(Department of Clinical Research) (2014-2015)
Hokkaido University (2013)

Principal Investigator

Onodera Shunsuke  独立行政法人国立病院機構北海道がんセンター(臨床研究部), その他部局等, その他 (30374458)

Co-Investigator(Kenkyū-buntansha) Nakamura Kiminori  北海道大学, 大学院先端生命科学研究院自然免疫研究室, 准教授 (80381276)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords放射線腸炎 / α-defensin / 腸内細菌叢 / αディフェンシン / 強度変調放射線治療 / 陽子線治療 / 放射線性腸炎 / αdefensin / 血中シトルリン
Outline of Final Research Achievements

The purpose of this study was to investigate the clinical application of α-defensin in stool in the objective evaluation of radiation enteritis.As the first step, we experimented on mice and found that the amount of α-defensin significantly decreased in stool of mice irradiated to the abdomen.In addition, a significant negative correlation was observed between the amount of α-defensin and Firmicutes at three days after irradiation.These results suggested that decrease of α-defensin correlated with an altered intestinal flora of the mice irradiated to the abdomen.We could not investigate the clinical application due to insufficient number of patients in this period.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (5 results)

All 2015 2014 2013

All Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 放射線腸炎の指標としての便中α-ディフェンシンの可能性~マウスでの研究結果から~2015

    • Author(s)
      小野寺俊輔、中村公則、西山典明、綾部時芳、白土博樹
    • Organizer
      第133回日本医学放射線学会 北日本地方会
    • Place of Presentation
      仙台市 艮陵会館
    • Year and Date
      2015-10-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] NTCP Modeling Analysis of Acute Hematologic Toxicity in Whole Pelvic Radiation Therapy for Gynecologic Malignancies - A Dosimetric Comparison of IMRT and Spot-Scanning Proton Therapy2015

    • Author(s)
      T.Yoshimura, R.Kinoshita, S.Onodera, C.Toramatsu, R.Suzuki, Y.M.Ito, S.Takao, T.Matsuura, Y.Matsuzaki, S.Shimizu, K.Umegaki, H.Shirato
    • Organizer
      57th Annual Meeting of ASTRO
    • Place of Presentation
      San Antonio, USA
    • Year and Date
      2015-10-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A retrospective planning study of spot scanning proton therapy for gynecologic cancer2014

    • Author(s)
      Takaaki Yoshimura, Shunsuke Onodera, Chie Toramatsu, Rumiko Kinoshita, Shinichi Shimizu, Kikuo Umegaki, Hiroki Shirato
    • Organizer
      53rd International Meeting of the Particle Therapy Co-Operative Group
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2014-06-08 – 2014-06-14
    • Related Report
      2014 Research-status Report
  • [Presentation] Initial dosimetoric study of whole pelvic irradiation using spot scanning proton therapy2014

    • Author(s)
      Takaaki Yoshimura, Shunsuke Onodera, Chie Toramatsu, Rumiko Kinoshita, Shinnichi Shimizu, Kikuo Umegaki, Hiroki Shirato
    • Organizer
      第107回日本医学物理学会学術大会
    • Place of Presentation
      横浜、神奈川
    • Year and Date
      2014-04-10 – 2014-04-13
    • Related Report
      2014 Research-status Report
  • [Presentation] 婦人科腫瘍におけるIMRTの利用経験2013

    • Author(s)
      小野寺 俊輔
    • Organizer
      第129回 日本医学放射線学会 北日本地方会
    • Place of Presentation
      仙台市青葉区広瀬町3-34 艮陵会館
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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