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Studies on the ethnic specificity and genetic susceptibility for salt sensitivity

Research Project

Project/Area Number 13204095
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionInternational Medical Center of Japan (Research Institute)

Principal Investigator

KATO Norihiro  International Medical Center of Japan (Research Institute), Dept. of Gene Diagnostics and Therapeutics, Director, 遺伝子診断治療開発研究部, 部長 (80293934)

Co-Investigator(Kenkyū-buntansha) YANAI Kazuyuki  International Medical Center of Japan (Research Institute), Dept. of Gene Diagnostics and Therapeutics, Laboratory Chief, 遺伝子診断治療開発研究部, 室長 (30360704)
Project Period (FY) 2000 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥36,400,000 (Direct Cost: ¥36,400,000)
Fiscal Year 2004: ¥8,800,000 (Direct Cost: ¥8,800,000)
Fiscal Year 2003: ¥8,800,000 (Direct Cost: ¥8,800,000)
Fiscal Year 2002: ¥8,800,000 (Direct Cost: ¥8,800,000)
Fiscal Year 2001: ¥10,000,000 (Direct Cost: ¥10,000,000)
KeywordsSalt sensitivity / Hypertension / Genetic analysis / Ethnic specificity / Water-electrolyte homeostasis / Natriuretic peptide
Research Abstract

In the present study, we have focused on salt sensitivity as a target 'intermediate' phenotype to investigate genetic susceptibility for hypertension. Despite a number of vigorous studies performed to date on this phenotype, any uniform definitions and measurement protocols have not been well established for the evaluation of salt sensitivity, and therefore, comparisons of the results among different studies cannot be made easily. Under these circumstances, we first devised a practical protocol to evaluate salt sensitivity in a population-based setting and then we applied it to select an appropriate set of SNPs that are useful for predicting salt sensitivity in the Japanese population.
Our principal study achievements are as follows: (1) In a total of 34 candidate genes selected for salt sensitivity, we sought tag SNPs by re-sequencing genomic DNA fragments derived from 48 individuals and we chose 166 tag SNPs among 471 SNPs thus detected; (2) In a population-based study panel comprising 95 unrelated individuals, we found two SNPs-one from AGTR2 and the other from ACE-to be significantly associated with salt sensitivity phenotypes when a pairwise association was tested by the chi-squared test statistics. Also, we found that 6 SNPs and two hormonal parameters-plasma renin activity and atrial natriuretic peptide concentration-can account for >50 % of variances (R-square) in blood pressure changes upon salt sensitivity intervention; (3) Based on the preliminary results obtained in the Japanese, we further performed a pilot study in the African blacks (n=60) and will start a main study in Tanzania; and (4) we identified two major quantitative trait loci (QTLs) for blood pressure influenced by salt loading i.e., salt sensitive hypertension, on rat chromosomes 1 and 3 and we are performing the positional cloning in each chromosomal region by using the congenic strategy.

Report

(5 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (38 results)

All 2005 2004 2003 2002 2001 2000 Other

All Journal Article (25 results) Publications (13 results)

  • [Journal Article] Identification of quantitative trait loci for cardiac hypertrophy in two different strains of the spontaneously hypertensive rat.2005

    • Author(s)
      Inomata H et al.
    • Journal Title

      Hypertens Res. 28

      Pages: 879-887

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of insulin resistance linkage to rat chromosome 4 in SHRR of a Japanese colony.2005

    • Author(s)
      Watanabe T et al.
    • Journal Title

      Biochem Biophys Res Commun. 329

      Pages: 273-281

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Linkage disequilibrium grouping of SNPs reflecting haplotype phylogeny for efficient selection of tag SNPs.2005

    • Author(s)
      Takeuchi F et al.
    • Journal Title

      Genetics 170

      Pages: 291-304

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Linkage disequilibrium grouping of SNPs reflecting haplotype phylogeny for efficient selection of tag SNPs.2005

    • Author(s)
      Takeuchi, F., Kato, N., et al.
    • Journal Title

      Genetics 170

      Pages: 291-304

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Identification of quantitative trait loci for cardiac hypertrophy in two different strains of the spontaneously hypertensive rat.2005

    • Author(s)
      Inomata H et al.
    • Journal Title

      Hypertens Res. (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Evaluation of insulin resistance linkage to rat chromosome 4 in SHR of a Japanese colony.2005

    • Author(s)
      Watanabe T et al.
    • Journal Title

      Biochem Biophys Res Commun. (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] cDNAマイクロアレイを用いた高血圧関連疾患の責任遺伝子の解析2004

    • Author(s)
      水沼眞紀子ら
    • Journal Title

      血圧 11(3)

      Pages: 86-91

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Genome-wide searches for blood pressure QTLs in the stroke-prone spontaneously hypertensive rat of a Japanese colony.2003

    • Author(s)
      Kato N et al.
    • Journal Title

      J Hypertens 21

      Pages: 295-304

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Isolation of a chromosome 1 region affecting blood pressure and vascular disease traits in the stroke-prone rat model.2003

    • Author(s)
      Kato N et al.
    • Journal Title

      Hypertension 42

      Pages: 1191-1197

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Isolation of a chromosome 1 region affecting blood pressure and vascular disease traits in the stroke-prone rat model.2003

    • Author(s)
      Kato.N., et al.
    • Journal Title

      Hypertension 42

      Pages: 1191-1197

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Genome-wide searches for blood pressure QTLs in the stroke-prone spontaneously hypertensive rat of a Japanese colony.2003

    • Author(s)
      Kato, N., et al.
    • Journal Title

      J Hypertens 21

      Pages: 295-304

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Proposition of a feasible protocol to evaluate salt sensitivity in a population-based setting.2002

    • Author(s)
      Kato N et al.
    • Journal Title

      Hypertens Res. 25

      Pages: 801-809

    • NAID

      10010314956

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Genetic analysis in human hypertension.2002

    • Author(s)
      Kato N
    • Journal Title

      Hypertens Res. 25

      Pages: 319-327

    • NAID

      10009567821

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the atrial natriuretic peptide gene in stroke.2002

    • Author(s)
      Kato N et al.
    • Journal Title

      Atherosclerosis 163

      Pages: 279-286

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Proposition of a feasible protocol to evaluate salt sensitivity in a population-based setting.2002

    • Author(s)
      Kato, N., et al.
    • Journal Title

      Hypertens Res 25

      Pages: 801-9

    • NAID

      10010314956

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Genetic analysis in human hypertension.2002

    • Author(s)
      Kato, N.
    • Journal Title

      Hypertens Res 25

      Pages: 319-27

    • NAID

      10009567821

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the atrial natriuretic peptide gene in stroke.2002

    • Author(s)
      Kato.N., et al.
    • Journal Title

      Atherosclerosis 163

      Pages: 279-86

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of selected polymorphisms of the Mendelian hypertensive disease genes in the Jananese population.2001

    • Author(s)
      Sugiyama T et al.
    • Journal Title

      Hypertens Res. 24

      Pages: 515-521

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Association analysis of beta-2 adrenergic receptor polymorphisms with hypertension in Japanese.2001

    • Author(s)
      Kato N et al.
    • Journal Title

      Hypertension 37

      Pages: 286-292

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of selected polymorphisms of the Mendelian hypertensive disease genes in the Japanese population.2001

    • Author(s)
      Sugiyama, T., Kato.N., et al.
    • Journal Title

      Hypertens Res 24

      Pages: 515-21

    • NAID

      10009564869

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Association analysis of beta-2 adrenergic receptor polymorphisms with hypertension in Japanese.2001

    • Author(s)
      Kato, N., et al.
    • Journal Title

      Hypertension 37

      Pages: 286-92

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Genetic analysis of the atrial natriuretic peptide gene in essential hypertension.2000

    • Author(s)
      Kato N et al.
    • Journal Title

      Clin Sci. 98

      Pages: 251-258

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the poly(ADP ribose) polymerase gene in human stroke.2000

    • Author(s)
      Kato N et al.
    • Journal Title

      Atherosclerosis 148

      Pages: 345-352

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Genetic analysis of the atrial natriuretic peptide gene in essential hypertension.2000

    • Author(s)
      Kato, N., et al.
    • Journal Title

      Clin Sci 98

      Pages: 251-258

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Evaluation of the poly (ADP-ribose) polymerase gene in human stroke.2000

    • Author(s)
      Kato, N., et al.
    • Journal Title

      Atherosclerosis 148

      Pages: 345-352

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Kato N et al.: "Genome wide searches for blood pressure QTLs in the stroke-prone spontaneously hypertensive rat of a Japanese colony."J Hypertens. 21. 295-304 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kato N et al.: "Isolation of a chromosome 1 region affecting blood pressure and vascular disease traits in the stroke-prone rat model."Hypertension. 42. 1191-1197 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kato N et al.: "Proposition of a feasible protocol to evaluate salt sensitivity in a population-based setting."Hypertens Res.. 25. 801-809 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 森居俊行ら: "人種特異性を考慮した系統的SNPs探索:心血管系疾患の候補遺伝子LPLを一例として"血圧. 10. 291-296 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kato N et al.: "Association analysis of β2 adrenergic receptor polymorphisms with hypertension in Japanese"Hypertension. 37. 286-292 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kato N et al.: "Evaluation of the atrial natriuretic peptide gene in stroke"Atherosclerosis. 163. 279-286 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sugiyama T, Kato N, et al.: "Evaluation of selected polymorphisms of the Mendelian hypertensive disease gene in the Japanese population"Hypertens Res.. 24. 515-521 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kato N: "Genetic analysis in human hypertension"Hypertens Res.. 25. 319-327 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kato N et al.: "Proposition of a feasible protocol to evaluate salt sensitivity in a population-based setting"Hypertens Res.. 25. 801-809 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kato N et al.: "Association analysis of β2 adrenergic receptor polymorphisms with hypertension in Japanese"Hypertension. 37. 286-292 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kato N et al.: "Evaluation of the atrial natriuretic peptide gene in stroke"Atherosclerosis. (In press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sugiyama T, Kato N, et al.: "Evaluation of selected polymorphisms of the Mendelian hypertensive disease gene in the Japanese population"Hypertens Res.. 24. 515-521 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kato N: "Genetic analysis in human hypertension"Hypertens Res.. (In press). (2002)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2018-03-28  

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