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2022 Fiscal Year Research-status Report

MR関連高血圧症による心不全発症メカニズムの解明

Research Project

Project/Area Number 22K08098
Research InstitutionMie University

Principal Investigator

岡本 隆二  三重大学, 医学部附属病院, 教授 (60378346)

Co-Investigator(Kenkyū-buntansha) 土肥 薫  三重大学, 医学系研究科, 教授 (50422837)
Project Period (FY) 2022-04-01 – 2025-03-31
Keywords心肥大 / 心不全 / ミオシン軽鎖 / ミネラルコルチコイド受容体 / アルドステロン
Outline of Annual Research Achievements

野生型マウスおよび心臓特異的ミオシン軽鎖(MLC)ホスファターゼKOマウスを用いて、片腎摘出後、アルドステロンの慢性投与を行い、MR関連高血圧症における心不全モデルを作成し、心肥大および心臓の線維化の解析を行った。
心臓特異的MLCホスファターゼKOマウスは野生型に比較し、心臓収縮能および拡張能が保たれ、組織学的にも心臓の線維化が抑制されていた。
また心臓特異的MLCホスファターゼKOマウスでは結合組織成長因子(CTGF)の低下を認めた。
HL1心筋細胞をアルドステロンで刺激すると、MLCホスファターゼ・サブユニットのMYPT2およびCTGFの両方が増加した。

Current Status of Research Progress
Current Status of Research Progress

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

Reason

動物モデルの作成・解析に加え、培養細胞を用いた検討でも、一定の成果を得ることが出来ているため。

Strategy for Future Research Activity

今後MR刺激時のMRの局在やCTGFの発現が、MLCホスファターゼとどのような関係にあるのかを、細胞およびマウスを用いて明らかとする。

Causes of Carryover

理由:一部の学会をWeb参加として、旅費が少なく済んだため
使用計画:欧米の国際学会海外に参加し、データ発表を行うことに使用する予定である。

  • Research Products

    (18 results)

All 2023 2022

All Journal Article (15 results) (of which Int'l Joint Research: 13 results,  Peer Reviewed: 15 results,  Open Access: 10 results) Presentation (3 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] A hyperaldosteronism subtypes predictive model using ensemble learning2023

    • Author(s)
      Karashima S, Kawakami M, Nambo H, Kometani M, Kurihara I, Ichijo T, Katabami T, Tsuiki M, Wada N, Oki K, Ogawa Y, Okamoto R, Tamura K, Inagaki N, Yoshimoto T, Kobayashi H, Kakutani M, Fujita M, Izawa S, Suwa T, Kamemura K, Yamada M, Tanabe A, Naruse M, Yoneda T; JPAS/JRAS Study Group
    • Journal Title

      Scientific Reports

      Volume: 13 Pages: 3043

    • DOI

      10.1038/s41598-023-29653-2

    • Peer Reviewed / Open Access
  • [Journal Article] Associated factors and effects of comorbid atrial fibrillation in hypertensive patients due to primary aldosteronism2023

    • Author(s)
      Sakaguchi S, Okamoto R, Inoue C, Akao M, Kamemura K, Kurihara I, Takeda Y, Ohno Y, Inagaki N, Rakugi H, Katabami T, Tsuiki M, Tanabe A, Tamura K, Fujita S, Yano Y, Dohi K; JRAS investigators; Naruse M.
    • Journal Title

      Journal of Human Hypertension

      Volume: 37 Pages: 757~766

    • DOI

      10.1038/s41371-022-00753-2

    • Peer Reviewed
  • [Journal Article] Cardiac Fibrosis: Chronic Inflammatory Disease and Promising Therapeutic Target2022

    • Author(s)
      Okamoto Ryuji
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Pages: 8074~8074

    • DOI

      10.3390/ijms23158074

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Perinatal hypoxia aggravates occlusive pulmonary vasculopathy in SU5416/hypoxia-treated rats later in life2022

    • Author(s)
      Oshita Hironori、Sawada Hirofumi、Mitani Yoshihide、Tsuboya Naoki、Kabwe Jane C.、Maruyama Junko、Yusuf Ali、Ito Hiromasa、Okamoto Ryuji、Otsuki Shoichiro、Yodoya Noriko、Ohashi Hiroyuki、Oya Kazunobu、Kobayashi Yuhko、Kobayashi Issei、Dohi Kaoru、Nishimura Yuhei、Saitoh Shinji、Maruyama Kazuo、Hirayama Masahiro
    • Journal Title

      American Journal of Physiology-Lung Cellular and Molecular Physiology

      Volume: 323 Pages: L178~L192

    • DOI

      10.1152/ajplung.00422.2021

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Arrhythmogenic right ventricular cardiomyopathy complicating hypertrophic cardiomyopathy2022

    • Author(s)
      Kagawa Yoshihiko、Okamoto Ryuji、Asano Yoshihiro、Sakata Yasushi、Dohi Kaoru
    • Journal Title

      European Heart Journal - Cardiovascular Imaging

      Volume: 23 Pages: e326~e326

    • DOI

      10.1093/ehjci/jeac103

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Moyamoya Disease Complicating Ebstein's Anomaly2022

    • Author(s)
      Goto Itaru、Okamoto Ryuji、Sato Yu、Tsuji Akihiro、Tanigawa Takashi、Dohi Kaoru
    • Journal Title

      Internal Medicine

      Volume: 61 Pages: 3683~3686

    • DOI

      10.2169/internalmedicine.9516-22

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CRISPR-mediated Bmpr2 point mutation exacerbates late pulmonary vasculopathy and reduces survival in rats with experimental pulmonary hypertension2022

    • Author(s)
      Kabwe Jane Chanda、Sawada Hirofumi、Mitani Yoshihide、Oshita Hironori、Tsuboya Naoki、Zhang Erquan、Maruyama Junko、Miyasaka Yoshiki、Ko Hideyoshi、Oya Kazunobu、Ito Hiromasa、Yodoya Noriko、Otsuki Shoichiro、Ohashi Hiroyuki、Okamoto Ryuji、Dohi Kaoru、Nishimura Yuhei、Mashimo Tomoji、Hirayama Masahiro、Maruyama Kazuo
    • Journal Title

      Respiratory Research

      Volume: 23 Pages: -

    • DOI

      10.1186/s12931-022-02005-w

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum-Induced Expression of Brain Natriuretic Peptide Contributes to Its Increase in Patients with HFpEF2022

    • Author(s)
      Okamoto Ryuji、Hashizume Ryotaro、Suzuki Noboru、Ito Rie、Tokuhara Tomoko、Fujiwara Hiroshi、Zhe Ye、Ito Hiromasa、Abe Takaya、Dohi Kaoru
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Pages: 2991~2991

    • DOI

      10.3390/ijms23062991

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cardiorenal protective effects of sodium-glucose cotransporter 2 inhibition in combination with angiotensin II type 1 receptor blockade in salt-sensitive Dahl rats2022

    • Author(s)
      Ito Hiromasa、Okamoto Ryuji、Ali Yusuf、Zhe Ye、Katayama Kan、Ito Masaaki、Dohi Kaoru
    • Journal Title

      Journal of Hypertension

      Volume: 40 Pages: 956~968

    • DOI

      10.1097/HJH.0000000000003099

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prevalence and Clinical Characteristics of Proximal Deep Venous Thrombosis After a High-Density Coronavirus Disease 2019 Cluster in a Japanese Psychiatric Hospital2022

    • Author(s)
      Sato Toru、Ogihara Yoshito、Fujimoto Naoki、Usami Akihiro、Hamaguchi Tatsuya、Tanabe Masaki、Okamoto Ryuji、Nakase Shinji、Dohi Kaoru
    • Journal Title

      Circulation Journal

      Volume: 86 Pages: 458~463

    • DOI

      10.1253/circj.CJ-21-0987

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Perihilar Variant of Focal Segmental Glomerulosclerosis Due to De novo Branchio-oto-renal Syndrome2022

    • Author(s)
      Saiki Ryosuke、Katayama Kan、Kitano Masako、Tsujimoto Kayo、Tanaka Fumika、Suzuki Yasuo、Murata Tomohiro、Kurita Tairo、Okamoto Ryuji、Takeuchi Kazuhiko、Dohi Kaoru
    • Journal Title

      Internal Medicine

      Volume: 61 Pages: 2033~2038

    • DOI

      10.2169/internalmedicine.8508-21

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulation of myosin light-chain phosphorylation and its roles in cardiovascular physiology and pathophysiology2022

    • Author(s)
      Ito Masaaki、Okamoto Ryuji、Ito Hiromasa、Zhe Ye、Dohi Kaoru
    • Journal Title

      Hypertension Research

      Volume: 45 Pages: 40~52

    • DOI

      10.1038/s41440-021-00733-y

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Thrombotic Microangiopathy Due to Severe Hypertension in a Patient With Primary Aldosteronism2022

    • Author(s)
      Hirabayashi Yosuke、Okamoto Ryuji、Miura Shoko、Inoue Chisa、Uemura Mei、Sugino Yuichi、Murata Tomohiro、Katayama Kan、Yano Yutaka、Sakuma Hajime、Dohi Kaoru
    • Journal Title

      Circulation Journal

      Volume: 86 Pages: 334~334

    • DOI

      10.1253/circj.CJ-21-0653

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Elderly Man With “Overalls” Edema2022

    • Author(s)
      Nakaya Hitoshi、Okamoto Ryuji、Nagashima Kazunori、Sugino Yuichi、Ogihara Yoshito、Sakuma Hajime、Dohi Kaoru
    • Journal Title

      Circulation Journal

      Volume: 86 Pages: 333~333

    • DOI

      10.1253/circj.CJ-21-0700

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Endovascular Treatment for Lower-extremity Arterial Thrombosis in a Patient with Congenital Afibrinogenemia and a History of Bleeding Complications2022

    • Author(s)
      Hiramatsu Daisuke、Ogihara Yoshito、Matsumoto Takeshi、Sato Kei、Takasaki Akihiro、Kurita Tairo、Okamoto Ryuji、Wada Hideo、Dohi Kaoru
    • Journal Title

      Internal Medicine

      Volume: 61 Pages: 361~364

    • DOI

      10.2169/internalmedicine.7542-21

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The Regulation of Myosin Light Chain Phosphorylation Plays an Important Role in the Development of Cardiac Fibrosis in MR-Related Hypertension2023

    • Author(s)
      Zhe Ye, Ryuji Okamoto, Hiromasa Ito, Rie Ito, Mizuki Ida, Masaaki Ito, Kaoru Dohi
    • Organizer
      日本循環器学会総会
    • Int'l Joint Research
  • [Presentation] Associated factors and effects of comorbid atrial fibrillation in hypertensive patients due to primary aldosteronism2023

    • Author(s)
      Shintaro Sakaguchi, Ryuji Okamoto, Masaharu Akao, Kohei Kamemura, Hiromi Rakugi5, Satoshi Fujita, Kaoru Dohi; JRAS investigators; Mitsuhide Naruse
    • Organizer
      日本循環器学会総会
    • Int'l Joint Research
  • [Presentation] Predictors and effects of comorbid atrial fibrillation in hypertensive patients due to primary aldosteronism2022

    • Author(s)
      Shintaro Sakaguchi, Ryuji Okamoto, Chisa Inoue, Kohei Kamemura, Isao Kurihara, Yoshiyu Takeda, Youichi Ohno, Hiromi Rakugi, Takuyuki Katabami, Akiyo Tanabe, Kouichi Tamura, Fujita Satoshi, Yutaka Yano, Kaoru Dohi and Mitsuhide Naruse ,JPAS/JRAS Study Group
    • Organizer
      国際高血圧学会(ISH)
    • Int'l Joint Research

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Published: 2023-12-25  

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