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Genetic linkage analysis and identification of obesity-related gene in LEA rat

Research Project

Project/Area Number 26430101
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory animal science
Research InstitutionNational Center for Global Health and Medicine

Principal Investigator

OKAMURA TADASHI  国立研究開発法人国立国際医療研究センター, その他部局等, 実験動物管理室長 (00333790)

Co-Investigator(Renkei-kenkyūsha) SHIMIZU Yukiko  国立研究開発法人国立国際医療研究センター, 研究所設, 技術職員 (00469983)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsLEAラット / 肥満 / 次世代シークエンサー / ラットモデル / 抗肥満
Outline of Final Research Achievements

The LEA rat has been recently established as a novel, non-obese animal model for type 2 diabetes. In LEA rats, the disappearance of tubular epithelial cell layer associated with thickening of basement membrane were evident in renal proximal tubules, resulting in renal glucosuria. Genome-wide linkage analysis indicated that causative gene for glucoseuria was located on rat Chr.10. During the process to identify the causative gene for glucoseuria, we established a congenic strain carrying the BN rat-derived Chr.10 segment on the LEA rat genetic background. The body weight and the accumulation of intraabnominal fat of congenic strain were significantly increased compared with those of the LEA rat, suggesting obesity-related gene(s) were located in rat Chr.10. One candidate gene mutation associated with obesity has been identified by whole genome sequencing of LEA rat.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (7 results)

All 2017 2016 2015 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Invited: 3 results)

  • [Journal Article] Proteomic analysis of serum biomarkers for prediabetes using the Long-Evans Agouti rat, a spontaneous animal model of type 2 diabetes mellitus.2017

    • Author(s)
      Takahashi E, Unoki-Kubota H, Shimizu Y, Okamura T, Iwata W, Kajio H, Yamamoto-Honda R, Shiga T, Yamashita S, Tobe K, Okumura A, Matsumoto M, Yasuda K, Noda M, Kaburagi Y.
    • Journal Title

      J Diabetes Investig.

      Volume: 印刷中 Issue: 5 Pages: 661-671

    • DOI

      10.1111/jdi.12638

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional validation of tensin2 SH2-PTB domain by CRISPR/Cas9-mediated genome editing2016

    • Author(s)
      6. Marusugi K, Nakano K, Sasaki H, Kimura J, Yanobu-Takanashi R, Okamura T, Sasaki N.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 78 Issue: 9 Pages: 1413-1420

    • DOI

      10.1292/jvms.16-0205

    • NAID

      130005598017

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] 肥満研究における非肥満型糖尿病モデルLEAラットの有用性2016

    • Author(s)
      岡村匡史
    • Organizer
      第30回日本糖尿病・肥満動物学会年次学術集会
    • Place of Presentation
      大宮
    • Year and Date
      2016-03-11
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] 様々な変異を有するLEAラットの有用性2016

    • Author(s)
      岡村匡史
    • Organizer
      第9回ラットリサーチリソース研究会
    • Place of Presentation
      京都
    • Year and Date
      2016-01-29
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] LEAラットにおける抗肥満遺伝子の探索2015

    • Author(s)
      清水有紀子、高梨理絵子、岡村匡史
    • Organizer
      第 62 回日本実験動物学会総会
    • Place of Presentation
      京都
    • Year and Date
      2015-05-28
    • Related Report
      2015 Research-status Report
  • [Presentation] ユニークな糖尿病モデルLEAラットの有用性2014

    • Author(s)
      岡村 匡史
    • Organizer
      第157回日本獣医学会学術集会
    • Place of Presentation
      札幌
    • Year and Date
      2014-09-09 – 2014-09-12
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] 新規シスチン蓄積症モデルラットの樹立2014

    • Author(s)
      清水有紀子、高梨理絵子、金井孝夫、岡村匡史
    • Organizer
      第61回日本実験動物科学技術2014
    • Place of Presentation
      札幌
    • Year and Date
      2014-05-15 – 2014-05-17
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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