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2013 Fiscal Year Final Research Report

Analysis of salt memory in hypertension and its molecular mechanism

Research Project

  • PDF
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
Keywords塩分 / 高血圧
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.

  • Research Products

    (12 results)

All 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (9 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

    • DOI

      10/1093/ajh/hpt105

    • 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

    • URL

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

    • Peer Reviewed
  • [Journal Article] Vaccination against the angiotensin type 1 receptor for the prevention of L-NAME-induced nephropathy2012

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

      Hypertension Research

      Volume: 35 Pages: 492-499

    • DOI

      10.1038/hr.2011.212

    • 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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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
  • [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

URL: 

Published: 2015-07-16  

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