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Blood pressure QTL in mice

Research Project

Project/Area Number 12680807
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Laboratory animal science
Research InstitutionUniversity of Tsukuba

Principal Investigator

SUGIYAMA Fumihiro  Basic medical Sciences, assistant professor, 基礎医学系, 助教授 (90226481)

Co-Investigator(Kenkyū-buntansha) FUKAMIZU Akiyoshi  Applied Biochemistry, professer, 応用生物化学系, 教授 (60199172)
YAGAMI Kenich  Basic medical Sciences, professor, 基礎医学系, 教授 (40166476)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2002: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsMice / QTL / Blood Pressure / 遺伝子座
Research Abstract

To investigate the genetic control of hypertension, we performed a quantitative trait locus analysis on male mice from a reciprocal backcross between the salt-sensitive C57BL/6J and the normotensive A/J inbred mouse slrains after they were provided with water containing 1% salt for 2 weeks. Genome-wide scans performed on these mice and analyzed with a combination of conventional markerbased regressions and a novel simultaneous search for pairs revealed six significant quantitative trait loci associated with salt-induced blood pressure, two of which were interacting loci. These six loci, named Bpq1-6 for blood pressure quantitative trait loci, mapped to D1Mit334, D1Mit14, D4Mit164, D5Mit31, D6Mit15, and D15Mit13, Furthermore, five of these six loci were concordant with hypertension loci hi rats, and four were concordant with hypertension loci in humans, suggesting that quantitative trait loci mapping in model organisms can be used to guide the search for human blood pressure genes.
To be … More tter understand the genetic basis of essential hypertension, we conducted a QTL analysis of a population of 207 (BALB/cJ x CBA/CaJ) F(2) male mice to identity genomic regions that regulate blood pressure, heart rate, and heart weight. We identified two loci, Bpq6 (blood pressure quantitative locus 6) on chromosome 15 (Chr 15 ; peak, 16 cM ; 95% confidence interval, 0-25 cM) and Bpq7 on Chr 7 (peak, 42 cM ; 95% confidence interval, 35-50 cM) that were significantly associated with blood pressure. We also identified two loci, Hrql (heart rate quantitative locus 1) and Hrq2, on D2Mt304 (peak, 72 cM ; 95% confidence interval 60-80 cM) and D15MM84 (peak, 25 cM ; 95% confidence interval 20-35 cM), respectively, that were sigruficantiy associated with heart rate. A significant gene-gene interaction for heart rate was found between Hrql and DlAfltlO (peak, 57 cM ; 95% confidence interval, 45-75 CM) ; the latter QTL was named Hrq3. fae identified a significant locus for heart weight, Jfwgl (heart weight quantitative locus 1), at D14Mit67 (peak, 38cM ; 95% confidence interval, 20-43 cM). Identification of the genes for these QTL should lead to a better understanding of the causes of essential hypertension. Less

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Sugiyama F et al.: "QTL associated with blood pressure, heart rate, and heart weight in CBA/CaJ and BALB/cJ mice"Physiol Genomics. 10(1). 5-12 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama F et al.: "Mouse models for blood pressure regulation and hypertension"Curr Hypertens Rep. 3(1). 41-48 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama F et al.: "Concordance of murine quantitative trait loci for salt-induced hypertension with rat and human"Genomics. 71(1). 70-77 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama, F., et al: "QTL associated with blood pressure, heart rate, and heart weight in cBA/caJ and BACB/cJ mice"physiol Genomics. 10(1). 5-12 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama, F., et al: "Mouse models of blood pressure regulation and hypertension"Curr Hypertens. Rep.. 3(1). 41-48 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama, F., et al: "Concordance of murine quantitation trait loci for salt-induced hypertension with ret and human"Genomics. 71(1). 70-77 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Sugiyama F, et al.: "QTL associated with blood pressure rate, heart rate, and heart weight in CBA/cJ and BALB/mice"Physiol Geromics. 10(1). 5-12 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sugiyama F, et al.: "Mouse medels of pressure reguation and hypertensen"Curr Hypertens. 3(1). 41-48 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sugiyama F, et al.: "Concordance of marine quantitative trait loci for Salt-induced hypertension with rat and human"Genomics. 71(1). 70-77 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] Savinova OV., Sugiyama F., Martin JE., Tomarev SI., Paigen B., Smith RS., John SWM.: "Intraocular pressure in genetically distinct mice : An update and strain survey"BMC Genetics. 2・12 (http://www.biomedcentral.com). 1471-2156/2/12 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sugiyama F., Churchill GA., Higgins DC., Johns C., Makaritsis KP., Gavras H., Paigen B.: "Concordance of murine quantitative trait loci for salt-induced hypertension with rat and human loci"Genomics. 71. 70-77 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Sugiyama F., Yagami K., Paigen B.: "Mouse models for blood pressure regulation and hypertension"Carr. Hypertens Rep. 3. 41-48 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 杉山文博 他: "高血圧研究のための遺伝子操作マウス"血管と内皮. 10-4. 393-399 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 杉山文博 他: "高血圧:昇圧・降圧因子"生体の科学. 51・5. 502-503 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sugiyama F.etr.: "Concordant quantitative trait loci for blood pressure in mice, rats and humans"Geromics. (in press). ? (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sugiyama F.etr: "Mouse model of blood pressure regulation and hypertension"Current Hypertension Reports. (in press). ? (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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