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Effcets of omega-3 polyunsaturated fatty acids on cardiac rhythm and electrical remodeling

Research Project

Project/Area Number 20K11636
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionKindai University

Principal Investigator

Morishima Masaki  近畿大学, 農学部, 准教授 (40437934)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsエイコサペンタエン酸 / 心筋電気的リモデリング / 健康増進 / L型カルシウムチャネル / 魚油 / 電気的リモデリング / 高脂肪食 / 心房細動 / EPA / 自動拍動 / イオンチャネル / miR-30d
Outline of Research at the Start

疫学研究において、魚油に含まれる多価不飽和脂肪酸(polyunsaturated fatty acid, PUFA)の摂取が心房細動の発生率を減少させることが報告されているが、その分子機序は明らかではない。本研究では、動物モデルと初代培養ラット心筋細胞を用いて、PUFAの心筋細胞に対する本質的な作用を検証することで、PUFAが心臓の電気活動を調節し心房細動の発症予防に寄与するとの仮説を検証する。特に、PUFAによる心筋イオンチャネル遺伝子の発現制御メカニズムに焦点を置き、PUFAの未だ解明されていない心臓への生理作用を生理学的、分子生物学的手法で明らかにすることを目的とする。

Outline of Final Research Achievements

Cardiovascular benefits of dietary omega-3 polyunsaturated fatty acids,including eicosapentaenoic acid (EPA), has been actively investigated for many years, although the mechanisms for these potential benefits on cardiac rhythm are complex and not well defined. The objective of this study was to evaluate effects of EPA on cardiomyocyte focusing on the L-type Ca2+ channel and a transcription factor CREB. EPA displayed a reduction of spontaneous beating rate, L-type Ca2+ current, mRNA, and protein expressions of the Cav1.2-L-type Ca2+ channel in mice cardiomyocytes caused by a mixture of oleic acid (OA) and palmitic acid (PA) or OAPA. Immunocytochemical analysis revealed a distinct downregulation of the Cav1.2 channel by OAPA with a concomitant decrease in the phosphorylated component of CREB in the nucleus, which was also rescued by EPA.These results suggest that EPA rescues Ca2+ overload caused by OAPA lipotoxicity through the CREB/Cav1.2-mediated pathways.

Academic Significance and Societal Importance of the Research Achievements

本研究では、EPAが心筋細胞のL型Ca2+チャネルに作用し高脂肪負荷による心筋障害を軽減させるという新しい知見が得られたことから、EPAの心筋直接作用が明らかとなった。これまでに経験的に得られていたEPAの有効性を実験的に証明したことで、科学的根拠に基づいたEPAの栄養機能性の理解とその利用の啓発を目指したい。本研究により、生活習慣病の重症化によるAFの発症を阻止するための新しい医療用サプリメントの開発、そしてEPAの栄養機能性を活用したオーダーメイドな食事提供による健康寿命の延伸に貢献できると考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (26 results)

All 2023 2022 2021 2020

All Journal Article (13 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 13 results,  Open Access: 10 results) Presentation (12 results) Book (1 results)

  • [Journal Article] Electrophysiological evaluation of an anticancer drug gemcitabine on cardiotoxicity revealing down-regulation and modification of the activation gating properties in the human rapid delayed rectifier potassium channel2023

    • Author(s)
      Wei Mengyan、Wang Pu、Zhu Xiufang、Morishima Masaki、Liu Yangong、Zheng Mingqi、Liu Gang、Osanai Hiroki、Yoshimura Kenshi、Kume Shinichiro、Kurokawa Tatsuki、Ono Katsushige
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 2 Pages: e0280656-e0280656

    • DOI

      10.1371/journal.pone.0280656

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Protein kinase C regulates expression and function of the Cav3.2 T-type Ca channel during maturation of neonatal rat cardiomyocyte2022

    • Author(s)
      Wang Y, Morishima M, Ono K
    • Journal Title

      Membranes

      Volume: 12(7) Issue: 7 Pages: 686-686

    • DOI

      10.3390/membranes12070686

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 心房細動患者の心房筋における脳性ナトリウム利尿ペプチドとmiRNA-30dの発現の意義と心機能制御の可能性の検討2022

    • Author(s)
      森島 真幸, 岩田 英理子, 宮本 伸二, 小野 克重
    • Journal Title

      日本病態生理学会雑誌

      Volume: 31(1) Pages: 61-68

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 心房細動患者の心房筋における脳性ナトリウム利尿ペプチドとmiRNA-30dの発現の意義と心機能制御の可能性の検討2022

    • Author(s)
      森島真幸, 岩田英理子, 宮本伸二, 小野克重
    • Journal Title

      日本病態生理学会雑誌

      Volume: in press

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Enhanced BDNF actions following acute hypoxia facilitate HIF-1α-dependent upregulation of Cav3-T-type Ca2+ channels in rat cardiomyocytes2021

    • Author(s)
      Morishima M, Fujita T, Osagawa S, Kubota H, Ono K
    • Journal Title

      Membranes

      Volume: 11 Issue: 7 Pages: 11070470-11070470

    • DOI

      10.3390/membranes11070470

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nitric oxide down-regulates voltage-gated Na+ channel in cardiomyocytes possibly through S-nitrosylation-mediated signaling2021

    • Author(s)
      Wang P, Wei M, Zhu X, Liu Y, Yoshimura K, Zheng M, Liu G, Kume S, Morishima M, Kurokawa T, Ono K
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 11273-11273

    • DOI

      10.1038/s41598-021-90840-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum microRNA-30d is a sensitive biomarker for angiotensin II-induced cardiovascular complications in rats2021

    • Author(s)
      Morishima M, Ono K
    • Journal Title

      Heart and Vessels

      Volume: 36 Issue: 10 Pages: 1597-1606

    • DOI

      10.1007/s00380-021-01853-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Oxytocin down-regulates the Cav1.2 L-type Ca2+ channel via Gi/cAMP/PKA/CREB signaling pathway in cardiomyocytes2021

    • Author(s)
      Morishima M, Tahara S, Wang Y, Ono K
    • Journal Title

      Membranes

      Volume: 11 Issue: 4 Pages: 234-234

    • DOI

      10.3390/membranes11040234

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Manifestationsof gene expression profiles in human right atrial myocardium caused by mechanical stretch2021

    • Author(s)
      Suzuki R, Morishima M, Nakada C, Miyamoto S, Ono K
    • Journal Title

      Heart and Vessels

      Volume: 36 Issue: 4 Pages: 577-588

    • DOI

      10.1007/s00380-020-01724-8

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum microRNA-30d is a sensitive biomarker for angiotensinII-induced cardiovascular complications in rats.2021

    • Author(s)
      Morishima M, Ono K
    • Journal Title

      Heart Vessels

      Volume: in press

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Binge Alcohol Exposure Triggers Atrial Fibrillation Through T-Type Ca<sup>2+</sup> Channel Upregulation via Protein Kinase C (PKC) / Glycogen Synthesis Kinase 3β (GSK3β) / Nuclear Factor of Activated T-Cells (NFAT) Signaling ― An Experimental Account of Holiday Heart Syndrome ―2020

    • Author(s)
      Wang Y, Morishima M, Dan L, Takahashi N, Saikawa T, Nattel S, Ono K
    • Journal Title

      Circulation Journal

      Volume: 84 Issue: 11 Pages: 1931-1940

    • DOI

      10.1253/circj.CJ-20-0288

    • NAID

      130007929000

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2020-10-23
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnesium Deficiency Causes Transcriptional Downregulation of Kir2.1 and Kv4.2 Channels in Cardiomyocytes Resulting in QT Interval Prolongation.2020

    • Author(s)
      Shimaoka T, Wang Y, Morishima M, MIyamoto S, Ono K
    • Journal Title

      Circ J

      Volume: 84(8) Issue: 8 Pages: 1244-1253

    • DOI

      10.1253/circj.cj-20-0310

    • NAID

      130007879308

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 脳由来神経栄養因子BDNFの心臓における発現と低酸素病態下での機能2020

    • Author(s)
      森島真幸、藤田崇史、小野克重
    • Journal Title

      近畿大学農学部紀要

      Volume: 53 Pages: 11-23

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] エイコサペンタエン酸は飽和脂肪酸による細胞内Ca2+過負荷を改善する2023

    • Author(s)
      Masaki Morishima, Kosuke Horii, Pu Wang, Kazuki Horikawa, Katsushige Ono
    • Organizer
      日本生理学会第100回記念大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高脂肪負荷による心筋電気的リモデリングに対しω-3多価不飽和脂肪酸は受容体FFAR4非依存的に保護作用を発揮する2022

    • Author(s)
      堀井 鴻佑, 王 普, 堀川 一樹, 小野 克重, 森島 真幸
    • Organizer
      第31回日本病態生理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Protective effects of eicosapentaenoic acid against saturated fatty acids-caused electrical remodeling in cardiomyocytes2022

    • Author(s)
      Masaki Morishima, Hanako Murakami, Kosuke Horii, Pu Wang, Kazuki Horikawa, Katsushige Ono
    • Organizer
      第68回日本不整脈心電学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 飽和脂肪酸による心筋L型Caチャネルリモデリングに対するエイコサペンタエン酸の保護作用2022

    • Author(s)
      森島真幸, 村上華子, 王普, 堀川一樹, 小野克重
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 急性低酸素刺激により発現変動する非ペプチド系心臓栄養因子の役割2022

    • Author(s)
      森島真幸, 藤田崇史, 長川賢, 窪田浩志, 小野克重
    • Organizer
      心電学関連春季大会2022
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Presentation] 一酸化窒素(NO)産生薬は心筋細胞Na+チャネルを長期的に抑制する2022

    • Author(s)
      小野克重, 王普, 小山内博基, 吉村健司, 魏孟厳, 粂慎一郎, 森島真幸, 黒川竜紀
    • Organizer
      心電学関連春季大会2022
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Presentation] Eicosapentaenoic acid rescues L-type Ca2+ channel remodeling in cardiomyocytes caused by saturated fatty acids2022

    • Author(s)
      Masaki Morishima, Hanako Murakami, Wang Pu, Kazuki Horikawa, Katsushige Ono
    • Organizer
      第99回日本生理学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 孤食時の視覚刺激が自律神経活動に及ぼす影響ー心拍変動解析による客観的評価ー2022

    • Author(s)
      川口愛未, 松井夕佳, 古川菜月, 木村詩優理, 里森陸, 松田真緒, 大森麻依子, 小野克重, 森島真幸
    • Organizer
      第30回日本病態生理学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 孤食時の音楽刺激が自律神経活動に及ぼす影響ー心拍変動解析による客観的評価ー2022

    • Author(s)
      古川菜月, 松井夕佳, 川口愛未, 山本こはる, 堀井鴻祐, 大森麻依子, 小野克重, 森島真幸
    • Organizer
      第30回日本病態生理学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 高脂肪食負荷による心筋L型カルシウムチャネルリモデリングに対するEPAの作用2022

    • Author(s)
      堀井鴻祐, 山本こはる, 小野克重, 森島真幸
    • Organizer
      第30回日本病態生理学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cardioprotective effects of eicosapentaenoic acid against saturated fatty acids-caused electrical remodeling)2022

    • Author(s)
      Morishima Masaki, Matsuda Misato, Murakami Hanako, Ono Katsushige
    • Organizer
      第126回日本解剖学会総会全国学術集会/第98回日本生理学会大会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cardioprotective effects of eicosapentaenoic acid against saturated fatty acids-caused electrical remodeling2021

    • Author(s)
      Morishima M, Matsuda M, Murakami H, Ono K
    • Organizer
      第126回日本解剖学会総会・全国学術集会第98回日本生理学会大会合同大会
    • Related Report
      2020 Research-status Report
  • [Book] 健康食品・サプリメントを知る 実際の健康食品・サプリメント フィッシュオイル(魚油)2021

    • Author(s)
      森島真幸
    • Publisher
      診断と治療
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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