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2018 Fiscal Year Annual Research Report

Prevention of diabetes mellitus and Alzheimer dementia via improvement of low interstitial pH by food constituent

Research Project

Project/Area Number 18H03182
Research InstitutionRitsumeikan University

Principal Investigator

丸中 良典  立命館大学, 総合科学技術研究機構, 教授 (00127036)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywords糖尿病 / 間質液 / pH
Outline of Annual Research Achievements

糖尿病患者でのアルツハイマー型認知症発症リスクが高いことが知られている。しかし、その原因は未だ不明である。我々は糖尿病において間質液 pH が低下することを見出し、さらには間質液 pH 低下がインスリン抵抗性発症の成因であることを世界に先駆けて報告し、さらにはアルツハイマー型認知症の原因物質と考えられている神経毒性を有しているアミロイドベータ蓄積が間質液 pH 低下により促進される可能性を見出した。

【研究仮説】 A) 糖尿病での脳を含む間質液 pH 低下によりアミロイドプレカーサープロテインよりアミロイドベータを生成する酵素 β セクレターゼ活性および γ セクレターゼの酵素活性および発現量が増大し、アミロイドベータ分解酵素であるネプリライシンの酵素活性および発現量が低下することにより、糖尿病において脳内に線維化アミロイドベータ蓄積が増大する。B) ウメ食品を代表とした弱酸カルボン酸(カルボキシル基)含有食品摂取を通じて間質液 pH が正常に保持されることにより、インスリンの受容体への結合親和性を増大させ、その結果 インスリン抵抗性発症・血糖値上昇・アミロイドベータ蓄積の予防をもたらすことが可能となる。

【研究目的】  1) 上記仮説を動物において証明する。2) 間質液 pHを正常に制御し得る食品選定の選定を行なう。3) 選定された食品の摂取習慣を WHO をも介して 広く社会・世界に普及させる。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

糖尿病(DM)患者でのアルツハイマー型認知症(AD)発症リスクが高いことが知られているが、その原因は未だ不明である。我々はDMにおいて間質液pHが低下することを見出し、間質液pH低下がインスリン抵抗性発症の成因であることを世界に先駆けて報告し、更にはADの原因物質と考えられているアミロイドベータ(Aβ)蓄積が間質液pH低下により促進される可能性を見出した。
【研究仮説】 A) DMでの脳を含む間質液pH低下によりAβ生成酵素β セクレターゼ活性・γセクレターゼ活性・発現量増大、Aβ分解酵素ネプリライシン活性・発現量低下し、DMでの脳における線維化Aβ蓄積が増大する。B) ウメ食品を代表とした弱酸カルボン酸含有食品摂取で間質液pHが正常に保持されることにより、血糖値上昇・インスリン抵抗性発症・Aβ蓄積の予防をもたらすことが可能となる。
【研究目的】 1) 上記仮説を動物において証明した。
このことにより、本研究は概ね順調に進んでいると考えられる。

Strategy for Future Research Activity

【研究仮説】 A) DMでの脳を含む間質液pH低下によりAβ生成酵素β セクレターゼ活性・γセクレターゼ活性・発現量増大、Aβ分解酵素ネプリライシン活性・発現量低下し、DMでの脳における線維化Aβ蓄積が増大する。B) ウメ食品を代表とした弱酸カルボン酸含有食品摂取で間質液pHが正常に保持されることにより、血糖値上昇・インスリン抵抗性発症・Aβ蓄積の予防をもたらすことが可能となる。
この研究仮説を証明するため下記研究目標を達成するために実験を行う。
2) 間質液pHを正常に制御し得る食品選定の選定を行なう。
3) 選定された食品の摂取習慣をWHOをも介して広く社会・世界に普及させる。

  • Research Products

    (27 results)

All 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 5 results) Presentation (12 results) (of which Int'l Joint Research: 10 results,  Invited: 3 results)

  • [Int'l Joint Research] Jiangsu University/University of Macau(中国)

    • Country Name
      CHINA
    • Counterpart Institution
      Jiangsu University/University of Macau
  • [Int'l Joint Research] National Institute of Health/Regina Elena Cancer Institute(イタリア)

    • Country Name
      ITALY
    • Counterpart Institution
      National Institute of Health/Regina Elena Cancer Institute
  • [Int'l Joint Research] H. Lee Moffitt Cancer Center & Res Inst(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      H. Lee Moffitt Cancer Center & Res Inst
  • [Int'l Joint Research] Academy of Sciences of Uzbekistan(ウズベキスタン)

    • Country Name
      UZBEKISTAN
    • Counterpart Institution
      Academy of Sciences of Uzbekistan
  • [Journal Article] Cell Volume-Activated and Volume-Correlated Anion Channels in Mammalian Cells: Their Biophysical, Molecular, and Pharmacological Properties2019

    • Author(s)
      Okada Y, Okada T, Sato-Numata K, Islam MR, Ando-Akatsuka Y, Numata T, Kubo M, Shimizu T, Kurbannazarova RS, MARUNAKA Y, Sabirov RZ.
    • Journal Title

      Pharmacol Rev

      Volume: 71 Pages: 49-88

    • DOI

      10.1124/pr.118.015917

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Targeting acidity in cancer and diabetes2019

    • Author(s)
      Gillies RJ, Pilot C, MARUNAKA Y, Fais S
    • Journal Title

      Biochim Biophys Acta Rev Cancer

      Volume: 1871 Pages: 273-280

    • DOI

      10.1016/j.bbcan.2019.01.003

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Carbocisteine stimulated an increase in ciliary bend angle via a decrease in [Cl-]i in mouse airway cilia2019

    • Author(s)
      Ikeuchi Y, Kogiso H, Hosogi S, Tanaka S, Shimamoto C, Matsumura H, Inui T, MARUNAKA Y, Nakahari T.
    • Journal Title

      Pflugers Arch

      Volume: 471 Pages: 365-380

    • DOI

      10.1007/s00424-018-2212-2

    • Peer Reviewed
  • [Journal Article] Causes, consequences, and therapy of tumors acidosis2019

    • Author(s)
      Pillai SR, Damaghi M, Marunaka Y, Spugnini EP, Fais S, Gillies RJ.
    • Journal Title

      Cancer Metastasis Rev

      Volume: 印刷中 Pages: -

    • DOI

      10.1007/s10555-019-09792-7

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Xenin-25 induces anion secretion by activating non-cholinergic secretomotor neurons in the rat ileum2019

    • Author(s)
      Kuwahara A, Kuwahara Y, Kato I, Kawaguchi K, Harata D, Asano S, Inui T, Marunaka Y.
    • Journal Title

      Am J Physiol Gastrointest Liver Physiol

      Volume: 印刷中 Pages: -

    • DOI

      10.1152/ajpgi.00333.2018

    • Peer Reviewed
  • [Journal Article] Functional analysis and clinical significance of sodium iodide symporter expression in gastric cancer2019

    • Author(s)
      Shiozaki A, Ariyoshi Y, Iitaka D, Kosuga T, Shimizu H, Kudou M, Konishi T, Shoda K, Arita T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, MARUNAKA Y, Ichikawa D, Otsuji E
    • Journal Title

      Gastric Cancer

      Volume: 22 Pages: 473-485

    • DOI

      10.1007/s10120-018-0874-2

    • Peer Reviewed
  • [Journal Article] The Proposal of Molecular Mechanisms of Weak Organic Acids Intake-Induced Improvement of Insulin Resistance in Diabetes Mellitus via Elevation of Interstitial Fluid pH2018

    • Author(s)
      MARUNAKA Y
    • Journal Title

      Int J Mol Sci

      Volume: 19 Pages: 3244

    • DOI

      10.3390/ijms19103244

    • Peer Reviewed / Open Access
  • [Journal Article] Daidzein-Stimulated Increase in the Ciliary Beating Amplitude via an [Cl-]i Decrease in Ciliated Human Nasal Epithelial Cells.2018

    • Author(s)
      Inui TA, Yasuda M, Hirano S, Ikeuchi Y, Kogiso H, Inui T, MARUNAKA Y, Nakahari T.
    • Journal Title

      Int J Mol Sci

      Volume: 19 Pages: 3754

    • DOI

      10.3390/ijms19123754

    • Peer Reviewed / Open Access
  • [Journal Article] Improvement of Diabetes Mellitus Symptoms by Intake of Ninjin'yoeito2018

    • Author(s)
      Hosogi S, Ohsawa M, Kato I, Kuwahara A, Inui T, Inui A,MARUNAKA Y
    • Journal Title

      Front Nutr

      Volume: 5 Pages: 112

    • DOI

      10.3389/fnut.2018.00112

    • Peer Reviewed / Open Access
  • [Journal Article] Spontaneous oscillation of the ciliary beat frequency regulated by release of Ca2+ from intracellular stores in mouse nasal epithelia2018

    • Author(s)
      Kuremoto T, Kogiso H, Yasuda M, Inui TA, Murakami K, Hirano S, Ikeuchi Y, Hosogi S, Inui T, MARUNAKA Y, Nakahari T.
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 507 Pages: 211-216

    • DOI

      10.1016/j.bbrc.2018.11.010

    • Peer Reviewed / Open Access
  • [Journal Article] Bioconjugation strategy for cell surface labelling with gold nanostructures designed for highly localized pH measurement2018

    • Author(s)
      Puppulin L, Hosogi S, Sun H, Matsuo K, Inui T, Kumamoto Y, Suzaki T, Tanaka H, MARUNAKA Y
    • Journal Title

      Nature Commun

      Volume: 9 Pages: 5278

    • DOI

      10.1038/s41467-018-07726-5

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Involvement of EP receptors in the regulation of Short circuit current by prostaglandins in A6 cells2019

    • Author(s)
      Sun H, MARUNAKA Y, Asano S
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies.
    • Int'l Joint Research
  • [Presentation] Secretory reflex pathway of Xenin-25 in the rat ileum2019

    • Author(s)
      Kuwahara A, Kuwahara Y, Kato I, Inui T, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Secretory reflex pathway of SCFA in the rat distal colon2019

    • Author(s)
      Harata D, Asano S, Kuwahara A, Inui T, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Neurogenic relaxation of Xenin on spontaneous circular muscle contractions in rat distal colon2019

    • Author(s)
      Kuwahara Y, Kato I, Kuwahara A, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Aldosterone action on epithelial Na+ channel trafficking under the insulin-stimulated condition2019

    • Author(s)
      Marunaka R, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Inhibition of the frequency of airway ciliary beating by PDE1 activation in Down syndrome mouse2019

    • Author(s)
      Kogiso H, Ikeuchi Y, Tanaka S, Hosogi S, Shimamoto C, Raveau M, Yamakawa K, Nakahari T, Asano S, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Airway ciliary beating activated by enhanced Ca2+ signal in Hochuekki- to (TJ-41) treated mice2019

    • Author(s)
      Ikeuchi Y, Kogiso H, Tanaka S, Hosogi S, Nakahari T, Asano S, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Highly localized pH sensing on the outer membrane of cells using surface enhanced Raman spectroscopy2019

    • Author(s)
      Puppulin L, Hosogi S, Tanaka H, MARUNAKA Y
    • Organizer
      The 9th Congress of Federation of Asian and Oceanian Physiological Societies
    • Int'l Joint Research
  • [Presentation] Improvement of blood glucose level in diabetic rats by intake of citrate2018

    • Author(s)
      Hino K. Ebisu G, Hosogi S, MARUNAKA Y
    • Organizer
      The 7th Asian Congress of Diabetes: The rise of nutrition and diabetes in Asia
    • Int'l Joint Research
  • [Presentation] Epithelial Na+ channel (ENaC) trafficking process between the intracellular space and the apical membrane using mathematical analysis with a four-state model2018

    • Author(s)
      MARUNAKA Y
    • Organizer
      The 40th Annual Meeting of The Membrane Society of Japan
    • Invited
  • [Presentation] Effects of Ninjin'yoeito on insulin resistance via improvement of the interstitial fluid pH Seminar on Possibility of the Chinese medicine in the super aged society2018

    • Author(s)
      MARUNAKA Y
    • Organizer
      The 60th Annual Meeting of Japan Geriatircs Society
    • Invited
  • [Presentation] Roles of ion circumstances in bodily and cellular functions: Physiological meanings of interstitial fluid pH and action of food on the interstitial fluid pH2018

    • Author(s)
      MARUNAKA Y
    • Organizer
      The 3rd International Symposium on Phytochemicals in Medicine and Food
    • Int'l Joint Research / Invited

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Published: 2019-12-27  

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