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Dietary spermidine and spermine intake strengthen intestine barrier and prevent hepatocyte lipid droplet deposition in rodent short bowel syndrome model

Research Project

Project/Area Number 17K10563
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General surgery
Research InstitutionJichi Medical University

Principal Investigator

Kasahara Naoya  自治医科大学, 医学部, 助教 (50382891)

Co-Investigator(Kenkyū-buntansha) 横田 真一郎  自治医科大学, 医学部, 助教 (00625551)
岩本 禎彦  自治医科大学, 医学部, 教授 (10232711)
佐久間 康成  自治医科大学, 医学部, 教授 (10296105)
佐田 尚宏  自治医科大学, 医学部, 教授 (20261977)
寺谷 工  自治医科大学, 医学部, 講師 (70373404)
望月 和樹  山梨大学, 大学院総合研究部, 教授 (80423838)
浦橋 泰然  獨協医科大学, 医学部, 准教授 (90277161)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords短腸症 / ポリアミン / IgA / タイトジャンクション / 腸管不全関連肝障害 / 腸内細菌 / メタボローム解析 / 腸管不全合併肝障害 / IgA
Outline of Final Research Achievements

Dietary polyamine increase spermidine and spermine in intestine and blood in rodent model of short bowel syndrome. Additionally, in parallel with the concentration of dietary polyamines, progression of villous height, crypt depth and IgA elevation in whole blood and feces are confirmed. Also increased fecal mucin content and Claudin-3 protein expression was observed in the same manner. Furthermore, histological findings revealed hepatocyte lipid droplet deposition was decreased by dietary polyamines. Oral polyamine intake may have a prevention effect in steatotic change of liver, which develop as a late complication of short bowel syndrome known as intestinal failure-associated liver disease.

Academic Significance and Societal Importance of the Research Achievements

ラット短腸症モデルでポリアミン(PA)経口摂取によりIgAやムチン、タイトジャンクションが増強した。PA摂取により血清GLP-2やDAOは変動しなかった。また、PA摂取による腸内細菌叢変化はみられなかった。PAは既知のものとは異なる機序で粘膜防御を増強することが示唆された。PA無添加の食餌で組織学的に肝細胞への脂肪滴蓄積がみられたがPA添加で改善した。小腸不全関連肝障害はNASH類似の組織像を示すことが知られている。NASHの病態進展にかかわるSREBP-1の遺伝子発現が食餌PA濃度と逆相関しており、PAがSREBP-1を介して脂肪滴蓄積抑制効果を有する可能性が示唆された。

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

    (3 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Bolus Administration of Polyamines Boosts Effects on Hepatic Ischemia-Reperfusion Injury and Regeneration in Rats2019

    • Author(s)
      Doi Junshi、Fujimoto Yasuhiro、Teratani Takumi、Kasahara Naoya、Maeda Masashi、Tsuruyama Tatsuaki、Iida Taku、Yagi Shintaro、Uemoto Shinji
    • Journal Title

      European Surgical Research

      Volume: 60 Issue: 1-2 Pages: 63-73

    • DOI

      10.1159/000497434

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Patent(Industrial Property Rights)] 脱細胞化担体製造方法、脱細胞化担体、細胞充填方法、細胞シート作製方法、及び脱細胞化溶液キット2018

    • Inventor(s)
      寺谷工、浦橋泰然、笠原尚哉
    • Industrial Property Rights Holder
      寺谷工、浦橋泰然、笠原尚哉
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] ポリアミンを有効成分とする、造精機能障害を改善するための組成物2017

    • Inventor(s)
      渡邉 卓巳、寺谷 工、笠原 尚哉、高山 達也
    • Industrial Property Rights Holder
      渡邉 卓巳、寺谷 工、笠原 尚哉、高山 達也
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Acquisition Date
      2021
    • Related Report
      2020 Annual Research Report

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

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