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Analysis of salt memory in hypertension and its molecular mechanism

Research Project

Project/Area Number 23591225
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Kidney internal medicine
Research InstitutionKeio University

Principal Investigator

SASAMURA Hiroyuki  慶應義塾大学, 医学部, 特任准教授 (00235293)

Co-Investigator(Kenkyū-buntansha) ITOH Hiroshi  慶應義塾大学, 医学部, 教授 (40252457)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords塩分 / 高血圧 / 食塩
Research Abstract

Hypertension is known to occur because of an interplay between genetic and environmental factors. Of these environmental factors, changes in salt balance are thought to play a major role in the pathogenesis of hypertension, but the precise mechanisms by which the changes in salt balance cause elevations in blood pressure are still unclear. In this study, we show that transient treatment with a high-salt diet from age 6 to age 14 weeks causes hypertension which is sustained even after the high-salt diet is changed to a normal diet. Analysis of the mechanisms involved by renal cross-transplantation revealed an important role for the kidney in the salt memory phenomenon and also revealed that changes in renal vascular hypertrophy and a sustained increase in the systemic and local renin-angiotensin system were involved in the molecular mechanism.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (22 results)

All 2013 2012 2011

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (16 results)

  • [Journal Article] Feasibility of regression of hypertension using contemporary antihypertensive agents2013

    • Author(s)
      H. Sasamura, H. Nakaya, S. Julius, N Tomotusugu, Y Satoh, F Takahashi, M Takeuchi, M Murakami, M Ryuzaki , H. Itoh
    • Journal Title

      Am J Hypertension

      Volume: 26 Pages: 1381-1383

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Feasibility of regression of hypertension using contemporary antihypertensive agents2013

    • Author(s)
      H. Sasamura, H. Nakaya et al.
    • Journal Title

      American Journal of Hypertension

      Volume: 26 Pages: 1381-1388

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparison between angiotensin-converting enzyme inhibitors andangiotensin receptor blockers on the risk of stroke recurrence and longitudinal progression of white matter lesions and silent brain infarcts on MRI (CEREBRAL study): rationale design and methodology2013

    • Author(s)
      S. Yamano, H. Sasamura et al.
    • Journal Title

      International Journal of Stroke

      Volume: 7 Pages: 1499-1501

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Regression of atherosclerosis in apolipoprotein E-deficient mice is feasible using high-dose angiotensin receptor blocker candesartan2012

    • Author(s)
      K. Hayashi, H. Sasamura, T. Azegami, H. Itoh
    • Journal Title

      Journal of Atherosclerosis and Thrombosis

      Volume: 19 Pages: 736-746

    • NAID

      130004444629

    • URL

      https://www.jstage.jst.go.jp/article/jat/19/8/19_12534/_article:

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Vaccination against the angiotensin type I receptor for the prevention of L-NAME induced nephropathy2012

    • Author(s)
      Tatsuhiko Azegami, Hiroyuki Sasamura, Kaori Hayashi, Hiroshi Itoh
    • Journal Title

      Hyertension Research

      Volume: (印刷中) Issue: 5 Pages: 492-499

    • DOI

      10.1038/hr.2011.212

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Management of prehypertension (review)2011

    • Author(s)
      H. Sasamura
    • Journal Title

      Current Hypertension Reviews

      Volume: 7 Pages: 118-124

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Feasibility of regression of hypertension with an angiotensin receptor blocker2013

    • Author(s)
      H. Sasamura, H. Nakaya, S. Julius, H. Itoh
    • Organizer
      23^<rd> Scientific Meeting, European Society of Hypertension
    • Place of Presentation
      Milan
    • Year and Date
      2013-06-15
    • Related Report
      2013 Final Research Report
  • [Presentation] Studies on regression of hypertension2013

    • Author(s)
      H. Sasamura
    • Organizer
      2nd International conference on prehypertension and cardiometabolic syndrome
    • Place of Presentation
      Barcelona
    • Year and Date
      2013-02-02
    • Related Report
      2013 Final Research Report
  • [Presentation] 高血圧発症における「塩分メモリー」の証明とその機序の検討2013

    • Author(s)
      小口 英世、篠村 裕之,ら
    • Organizer
      日本腎臓学会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] Feasibility of regression of hypertension using an angiotensin receptor blocker2013

    • Author(s)
      Hiroyuki Sasamura et al.
    • Organizer
      23rd Scientific Meeting, European Society of Hypertension
    • Place of Presentation
      Barcelona
    • Related Report
      2013 Annual Research Report
  • [Presentation] Vaccination against the angiotensin II type 1 receptor prevents L-NAME-induced nephropathy in SHR2012

    • Author(s)
      T. Azegami, H. Sasamura, K. Hayashi, H. Oguchi, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-03
    • Related Report
      2013 Final Research Report
  • [Presentation] Cost-effectiveness analysis of amlodipine/atorvastatin single-pill therapy for patients with hypertension and hyperlipidemia2012

    • Author(s)
      H. Nakaya, H. Sasamura, I. Saito, Y. Inoue, S. Kobayashi, T. Saruta, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-03
    • Related Report
      2013 Final Research Report
  • [Presentation] Efficacy of vaccination against the angiotensin II type 1 receptor and ApoB 100 for the prevention of atherosclerosis2012

    • Author(s)
      T. Azegami, H. Sasamura, K. Hayashi, H. Oguchi, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-03
    • Related Report
      2013 Final Research Report
  • [Presentation] Salt memory of hypertension in spontaneously hypertensive rats (SHR) requires both sodium and chloride ions2012

    • Author(s)
      H. Oguchi, H. Sasamura, K. Ishiguro, M. Nakamura, K. Hayashi, T. Azegami, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-02
    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] Effects of brief exposure to a high-salt diet in Dahl salt-sensitive rats : evidence for'salt memory'during hypertension development2012

    • Author(s)
      K. Ishiguro, H. Sasamura, H. Oguchi, M. Nakamura, K. Hayashi, T. Azegami, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-02
    • Related Report
      2013 Final Research Report
  • [Presentation] Regression of atherosclerosis in apolipoprotein E-deficient mice is feasible using high-dose angiotensin receptor blocker2012

    • Author(s)
      K. Hayashi, H. Sasamura, T. Azegami, H. Oguchi, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Year and Date
      2012-10-02
    • Related Report
      2013 Final Research Report
  • [Presentation] Effects of brief exposure to a high-salt diet in Dahl salt-sensitive rats: evidence for ‘salt memory’ during hypertension development2012

    • Author(s)
      K. Ishiguro, H. Sasamura, H. Oguchi, M. Nakamura, K. Hayashi, T. Azegami, H. Itoh
    • Organizer
      24th Scientific Meeting of the International Society of Hypertension
    • Place of Presentation
      Sydney
    • Related Report
      2012 Research-status Report
  • [Presentation] 高血圧モデル動物における「塩分メモリー」の検討2012

    • Author(s)
      小口英世、篠村裕之、石黒喜美子、中村真理、林 香、畔上達彦、伊藤 裕
    • Organizer
      第35回日本高血圧学会総会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Research-status Report
  • [Presentation] Is regression of hypertension feasible? The rationale and design of the STAR CAST study2011

    • Author(s)
      H. Sasamura
    • Organizer
      1^<st> International conference on prehypertension and cardiometabolic syndrome
    • Place of Presentation
      Vienna
    • Year and Date
      2011-02-26
    • Related Report
      2013 Final Research Report
  • [Presentation] Dahl食塩感受性高血圧ラットに対する一過性塩分負荷の効果の検討2011

    • Author(s)
      石黒 喜美子、篠村 裕之、他
    • Organizer
      第34回日本高血圧学会総会
    • Place of Presentation
      栃木県総合文化センター(栃木県)
    • Related Report
      2011 Research-status Report
  • [Presentation] レニンーアンジオテンシン系ワクチンの高血圧、蛋白尿予防効果とその機序の検討2011

    • Author(s)
      畔上 達彦、篠村 裕之、他
    • Organizer
      第34回日本高血圧学会総会
    • Place of Presentation
      栃木県総合文化センター(栃木県)
    • Related Report
      2011 Research-status Report
  • [Presentation] アンジオテンシン受容体拮抗薬(ARB)高用量投与による動脈硬化の退縮とその機序の検討2011

    • Author(s)
      林 香、篠村裕之、他
    • Organizer
      第34回日本高血圧学会総会
    • Place of Presentation
      栃木県総合文化センター(栃木県)
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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