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Involvement of 12alpha-hydroxylated bile acids in the onset and aggravation of fatty liver

Research Project

Project/Area Number 19H02900
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionHokkaido University

Principal Investigator

ISHIZUKA Satoshi  北海道大学, 農学研究院, 教授 (00271627)

Co-Investigator(Kenkyū-buntansha) 相沢 智康  北海道大学, 先端生命科学研究院, 教授 (40333596)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywords胆汁酸 / 脂肪肝 / 12α水酸化胆汁酸 / bile acids / liver lipid accumulation
Outline of Research at the Start

非アルコール性脂肪肝疾患の頻度は年々増加しており、その発症には肝臓に脂質がたまることに加え、炎症・繊維化などが積み重なることで悪化していくと考えられています。過剰摂取で摂取エネルギーが増えると、コレステロールから生じる胆汁酸の一部が増加します。このタイプの胆汁酸が実験動物で肝臓の脂質蓄積を増やすこと、その時に肝臓での脂質合成の亢進が見られたことから、特定の胆汁酸が脂肪肝の発症に関わることが示唆されます。そこで、胆汁酸による肝臓での脂質蓄積の機構を明らかにする研究を行います。また、この脂肪肝は重篤な症状ではないため、このモデルを用いて脂肪肝の悪化に関わる要因を併せて検討します。

Outline of Final Research Achievements

Fatty liver is associated with development of noncommunicable diseases. inflammation and fibrosis occur based on lipid accumulation in the development of fatty liver. Although a high-fat-fed experimental animals are a well-known fatty liver model, those animals frequently have both lipid accumulation and inflammation in the liver, and no reasonable model is reported to separate lipid accumulation and inflammation with fibrosis. We observed an enhancement of secretion of 12α-hydroxylated bile acids from the liver in response to dietary energy and those bile acids induces liver lipid accumulation without inflammation and fibrosis. Also, induction of inflammation was found to aggravate the symptom substantially. This can be used as a presymptomatic model of fatty liver.

Academic Significance and Societal Importance of the Research Achievements

脂肪肝の発症モデルとして、炎症・繊維化を伴わない肝臓での脂質蓄積のみを呈するモデルを見出したことと、炎症を強制的に誘導させたときにはその症状が悪化するという単なる脂質蓄積に留まらない点を見出したことに学術的な意義があると考えられる。また、このモデルでは食事からのエネルギー摂取は通常のままで、肥満症状にはならない。健康診断などで見た目は肥満でなくても肝臓脂肪の蓄積が見られるヒトのモデルと考えることもでき、その後に起こりうる多様な疾患の予防において重要な観点を提示できた点は大きな成果と考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (32 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 6 results) Presentation (20 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] Gachon University(韓国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Dietary supplementation with okara and Bacillus coagulans lilac-01 improves hepatic lipid accumulation induced by cholic acids in rats2022

    • Author(s)
      Lee Yeonmi, Tanaka Yasutake, Iwasaki Wakana, Yokoyama Fumika, Joe Ga-Hyun, Tsuji Misaki, Nose Takuma, Tada Koji, Hanai Taketo, Hori Shota, Shimizu Hidehisa, Minamida Kimiko, Miwa Kazunori, Ishizuka Satoshi
    • Journal Title

      Journal of Functional Foods

      Volume: 90 Pages: 104991-104991

    • DOI

      10.1016/j.jff.2022.104991

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 12α-Hydroxylated bile acid enhances accumulation of adiponectin and immunoglobulin A in the rat ileum2021

    • Author(s)
      Yoshitsugu Reika, Liu Hongxia, Kamo Yoshie, Takeuchi Akari, Joe Ga-Hyun, Tada Koji, Kikuchi Keidai, Fujii Nobuyuki, Kitta Shinri, Hori Shota, Takatsuki Manami, Iwaya Hitoshi, Tanaka Yasutake, Shimizu Hidehisa, Ishizuka Satoshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 12939-12939

    • DOI

      10.1038/s41598-021-92302-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dietary raffinose ameliorates hepatic lipid accumulation induced by cholic acid via modulation of enterohepatic bile acid circulation in rats2021

    • Author(s)
      Maegawa Kenta, Koyama Haruka, Fukiya Satoru, Yokota Atsushi, Ueda Koichiro, Ishizuka Satoshi
    • Journal Title

      British Journal of Nutrition

      Volume: not assigned Issue: 11 Pages: 1-10

    • DOI

      10.1017/s0007114521002610

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Untargeted Lipidomic Analysis of Plasma from High-fat Diet-induced Obese Rats Using UHPLC–Linear Trap Quadrupole–Orbitrap MS2020

    • Author(s)
      Gowda Siddabasave Gowda B.、Gao Zi-Jun、Chen Zhen、Abe Takayuki、Hori Shota、Fukiya Satoru、Ishizuka Satoshi、Yokota Atsushi、Chiba Hitoshi、Hui Shu-Ping
    • Journal Title

      Analytical Sciences

      Volume: 36 Issue: 7 Pages: 821-828

    • DOI

      10.2116/analsci.19P442

    • NAID

      130007872112

    • ISSN
      0910-6340, 1348-2246
    • Year and Date
      2020-07-10
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lithocholic acid increases intestinal phosphate and calcium absorption in a vitamin D receptor dependent but transcellular pathway independent manner.2020

    • Author(s)
      Hashimoto Nobuhiro、Matsui Isao、Ishizuka Satoshi、Inoue Kazunori、Matsumoto Ayumi、Shimada Karin、Hori Shota、Lee Dong Geun、Yasuda Seiichi、Katsuma Yusuke、Kajimoto Sachio、Doi Yohei、Yamaguchi Satoshi、Kubota Keiichi、Oka Tatsufumi、Sakaguchi Yusuke、Takabatake Yoshitsugu、Hamano Takayuki、Isaka Yoshitaka
    • Journal Title

      Kidney International

      Volume: In press Issue: 6 Pages: 1164-1180

    • DOI

      10.1016/j.kint.2020.01.032

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Association between 12α-hydroxylated bile acids and hepatic steatosis in rats fed a high-fat diet2020

    • Author(s)
      Hori S, Abe T, Lee DG, Fukiya S, Yokota A, Aso N, Shirouchi B, Sato M, Ishizuka S.
    • Journal Title

      The Journal of Nutritional Biochemistry

      Volume: 83 Pages: 108412-108412

    • DOI

      10.1016/j.jnutbio.2020.108412

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A low coefficient of variation in hepatic triglyceride concentration in an inbred rat strain2020

    • Author(s)
      Shimoda T, Hori S, Maegawa K, Takeuchi A, Lee Y, Joe GH, Tanaka Y, Shimizu H, Ishizuka S.
    • Journal Title

      Lipids in Health and Disease

      Volume: 19 Issue: 1 Pages: 137-137

    • DOI

      10.1186/s12944-020-01320-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 12α-Hydroxylated bile acid induces hepatic steatosis with dysbiosis in rats2020

    • Author(s)
      Lee JY, Shimizu H, Hagio M, Fukiya S, Watanabe M, Tanaka Y, Joe GH, Iwaya H, Yoshitsugu R, Kikuchi K, Tsuji M, Baba N, Nose T, Tada K, Hanai T, Hori S, Takeuchi A, Furukawa Y, Shirouchi B, Sato M, Ooka T, Ogura Y, Hayashi T, Yokota A, Ishizuka S.
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids

      Volume: 1865 Issue: 12 Pages: 158811-158811

    • DOI

      10.1016/j.bbalip.2020.158811

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Correlation between 12α-hydroxylated bile acids and insulin secretion during glucose tolerance tests in rats fed a high-fat and high-sucrose diet2020

    • Author(s)
      Yoshitsugu Reika、Kikuchi Keidai、Hori Shota、Iwaya Hitoshi、Hagio Masahito、Shimizu Hidehisa、Hira Tohru、Ishizuka Satoshi
    • Journal Title

      Lipids in Health and Disease

      Volume: 19 Issue: 1 Pages: 1-9

    • DOI

      10.1186/s12944-020-1193-2

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Alteration of Bile Acid Metabolism by a High-Fat Diet Is Associated with Plasma Transaminase Activities and Glucose Intolerance in Rats2019

    • Author(s)
      YOSHITSUGU Reika、KIKUCHI Keidai、IWAYA Hitoshi、FUJII Nobuyuki、HORI Shota、LEE Dong Geun、ISHIZUKA Satoshi
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 65 Issue: 1 Pages: 45-51

    • DOI

      10.3177/jnsv.65.45

    • NAID

      130007605377

    • ISSN
      0301-4800, 1881-7742
    • Year and Date
      2019-02-28
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ingestion of difructose anhydride III partially suppresses the deconjugation and 7α-dehydroxylation of bile acids in rats fed with a cholic acid-supplemented diet2019

    • Author(s)
      Lee Dong Geun、Hori Shota、Kohmoto Ohji、Kitta Shinri、Yoshida Ryo、Tanaka Yasutake、Shimizu Hidehisa、Takahashi Keisuke、Nagura Taizo、Uchino Hirokatsu、Fukiya Satoru、Yokota Atsushi、Ishizuka Satoshi
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 印刷中 Issue: 7 Pages: 1-7

    • DOI

      10.1080/09168451.2019.1597617

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 腸肝循環における12α水酸化胆汁酸の増加による腹腔内耐糖能試験でのインスリン分泌減少2021

    • Author(s)
      横山 史佳、吉次 玲香、石塚 敏
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 宿主由来の12α水酸化胆汁酸は新規脂肪酸合成の亢進を介して脂肪肝を誘導する2021

    • Author(s)
      堀 将太、石塚 敏
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ラットにおける食後アミノ酸代謝と胆汁酸循環2021

    • Author(s)
      坂口 文菜、石塚 敏
    • Organizer
      第75回 日本栄養・食糧学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 12α水酸化胆汁酸によるラット肝脂質蓄積におけるリポタンパク質代謝の変化2021

    • Author(s)
      横山 史佳、石塚 敏
    • Organizer
      2021年度 日本農芸化学会北海道支部 第1回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ラットにおける食後門脈・体循環血漿でのアミノ酸動態と肝臓アミノ酸組成との関係2021

    • Author(s)
      荒川 唯、坂口 文菜、石塚 敏
    • Organizer
      2021年度 日本農芸化学会北海道支部第2回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] コール酸摂取によるラット肝脂質蓄積に伴う鉄代謝の経時的な変動2021

    • Author(s)
      久保田 夏希、伊藤 隼大、堀 将太、石塚 敏
    • Organizer
      2021年度 日本農芸化学会北海道支部第2回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高脂肪食摂取マウスでの肝脂質蓄積における12α水酸化胆汁酸の関与2021

    • Author(s)
      岩﨑 若菜、吉田 凌、田中 愛健、佐藤 匡央、石塚 敏
    • Organizer
      日本栄養・食糧学会 東北支部・北海道支部合同支部大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高脂肪食摂取による代謝変動と12α水酸化胆汁酸の分泌増大2021

    • Author(s)
      石塚 敏
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ラットにおける12α水酸化胆汁酸による肝脂質蓄積と関連症状2021

    • Author(s)
      石塚 敏
    • Organizer
      第75回 日本栄養・食糧学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 12α水酸化胆汁酸と脂肪肝の関係2020

    • Author(s)
      堀 将太、阿部 隆行、李 東根、吹谷 智、横田 篤、麻生 菜央、城内 文吾、佐藤 匡央、石塚 敏
    • Organizer
      日本農芸化学会2020年度福岡大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 12α水酸化胆汁酸による肝脂質蓄積関連症状に及ぼす小胞体ストレスの影響2020

    • Author(s)
      山田 理帆、堀 将太、石塚 敏
    • Organizer
      第74回日本栄養・食糧学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Small intestinal hyperpermeability is associated with increased primary 12α-hydroxylated bile acids in the enterohepatic circulation.2020

    • Author(s)
      Liu H, Kohmoto O, Ishizuka S
    • Organizer
      第24回 腸内細菌学会学術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] An increase of 12α-hydroxylated bile acid is associated with hepatic steatosis induced by a high-fat diet in rats.2019

    • Author(s)
      Hori S, Satake M, Abe T, Hara H, Fukiya S, Yokota A, Ishizuka S.
    • Organizer
      Kern Lipid Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ingestion of difructose anhydride III reduces secondary bile acid concentration in rat large intestine.2019

    • Author(s)
      Lee DG, Hori S, Kohmoto O, Kitta S, Yoshida R, Tanaka Y, Shimizu H, Takahashi K, Nagura T, Uchino H, Fukiya S, Yokota A, Ishizuka S.
    • Organizer
      Kern Lipid Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Amelioration of hepatic steatosis by ingestion of raffinose via modulation of bile acid metabolism in rats.2019

    • Author(s)
      Maegawa K, Ishizuka S.
    • Organizer
      The 7th International Conference on Food Factors/12th International Conference and exhibition on Neutraceuticals and Functional Foods
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 12α胆汁酸負荷により誘導される症状のラット及びマウスを用いた比較2019

    • Author(s)
      吉田 凌、堀 将太、原 博、石塚 敏
    • Organizer
      日本農芸化学会2019年度東京大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 12α水酸化胆汁酸により誘導される肝脂質蓄積におけるミトコンドリア機能の関与2019

    • Author(s)
      伊藤 隼大、堀 将太、原 博、石塚 敏
    • Organizer
      第73回日本栄養・食糧学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 慢性的な高脂肪食摂取によって腸肝循環で増加する12α水酸化胆汁酸はインスリン感受性を向上させる一方で肝臓脂質蓄積を亢進する2019

    • Author(s)
      堀 将太、吉次 玲香、菊池 慧大、阿部 隆行、原 博、吹谷 智、横田 篤、石塚 敏
    • Organizer
      第73回日本栄養・食糧学会大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 12α水酸化胆汁酸による肝臓脂質蓄積作用のスクロースによる増強2019

    • Author(s)
      備前 知風優、堀 将太、石塚 敏
    • Organizer
      第48回日本栄養・食糧学会北海道支部会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 12α水酸化胆汁酸代謝の調節を介する肝脂質蓄積のラフィノース摂取による抑制2019

    • Author(s)
      前川 顕汰、石塚 敏
    • Organizer
      第25回Hindgut Club Japanシンポジウム
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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