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Significance of Leptin and BDNF in Sarcopenia and Frailty

Research Project

Project/Area Number 17K16169
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Endocrinology
Research InstitutionOsaka City University

Principal Investigator

Kurajoh Masafumi  大阪市立大学, 大学院医学研究科, 講師 (90598319)

Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywordsレプチン / サルコぺニア / フレイル / サルコペニア / BDNF / 内科
Outline of Final Research Achievements

Animal studies have shown that leptin, secreted from adipose tissue, contributes to the promotion of bone resorption and suppression of bone formation through activation of the sympathetic nervous system. However, the relationship between leptin and sarcopenia/frailty has not been fully elucidated. We reported that plasma leptin concentrations are associated with radial cortical bone thickness in type 2 diabetic patients, independent of various background factors. These results indicate that leptin is associated with sarcopenia and frailty.

Academic Significance and Societal Importance of the Research Achievements

肥満患者におけるサルコペニア・フレイルの発症メカニズムは明らかにされていなかったが、本研究により脂肪細胞から分泌されるレプチンの関与が明らかとなった。本研究により、肥満患者における減量をかいしたレプチン抵抗性の改善が、サルコペニア・フレイルの進展予防につながることを明らかにした。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (4 results)

  • [Journal Article] Inverse association of plasma leptin with cortical thickness at distal radius determined with a quantitative ultrasound device in patients with type 2 diabetes mellitus.2019

    • Author(s)
      Kurajoh M, Inaba M, Motoyama K, Kuriyama N, Ozaki E, Koyama T, Yamada S, Morioka T, Imanishi Y, Emoto M.
    • Journal Title

      J Diabetes Investig

      Volume: 11 Issue: 1 Pages: 174-183

    • DOI

      10.1111/jdi.13071

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inverse association of plasma leptin with cortical thickness at distal radius determined with a quantitative ultrasound device in patients with type 2 diabetes mellitus.2019

    • Author(s)
      Kurajoh M, Inaba M, Motoyama K, Kuriyama N, Ozaki E, Koyama T, Yamada S, Morioka T, Imanishi Y, Emoto M
    • Journal Title

      J Diabetes Investig

      Volume: 11 Pages: 174-183

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 2型糖尿病患者における血漿レプチン濃度と橈骨皮質骨厚との関連2020

    • Author(s)
      藏城 雅文, 元山 宏華, 栗山 長門, 尾崎 悦子, 小山 晃英, 山田 真介, 森岡 与明, 今西 康雄, 絵本 正憲, 稲葉 雅章
    • Organizer
      第92回日本内分泌学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2型糖尿病患者における肥満度と橈骨皮質骨厚菲薄化の関連 血中レプチンの関与2020

    • Author(s)
      藏城 雅文, 元山 宏華, 栗山 長門, 尾崎 悦子, 小山 晃英, 山田 真介, 森岡 与明, 今西 康雄, 絵本 正憲, 稲葉 雅章
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 2型糖尿病患者における肥満度と橈骨皮質骨厚菲薄化の関連-血中レプチンの関与-2019

    • Author(s)
      藏城雅文、元山宏華、栗山長門、尾﨑悦子、小山晃英、山田真介、森岡与明、今西康雄、絵本正憲、稲葉雅章
    • Organizer
      第62回日本糖尿病学会年次学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 2型糖尿病患者における血漿レプチン濃度と橈骨皮質骨厚との関連2019

    • Author(s)
      藏城雅文、元山宏華、栗山長門、小﨑悦子、小山晃英、山田真介、森岡与明、今西康雄、絵本正憲、稲葉雅章
    • Organizer
      第92回日本内分泌学会学術総会
    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2022-01-27  

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