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Generation of gene targeted rat models with obesity and lipodystrophy for elucidating the mechanism of leptin action

Research Project

Project/Area Number 22591010
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Endocrinology
Research InstitutionKyoto University

Principal Investigator

ABE Megumi  京都大学, 医学研究科, 助教 (20568688)

Co-Investigator(Kenkyū-buntansha) EBIHARA Ken  京都大学, 医学研究科, 准教授 (70362514)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords糖尿病 / レプチン / 動物モデル / 遺伝子変異ラット / セイピン / PPARγ
Research Abstract

We generated and characterized a leptin deficient Lep^<mkyo>/Lep^<mkyo> rat that had a nonsense mutation in leptin gene and seipin knockout rat by the method using ENU mutagenesis. TZDs differentially regulated hepatic peroxisome proliferator-activated receptor gamma (PPARg)mRNA expression and body fat distribution between Lep^<ob>/Lep^<ob> mice and Lepmkyo/Lepmkyorats. Weidentified 8 genes those primarily respond to leptin in the liver commonly in rat and mouse. We detected that seipin deficient rat were infertile due to azoospermia and their spatial working memory is impairedalong with brain weight decrease

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (37 results)

All 2012 2011 2010

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (34 results)

  • [Journal Article] Leptin activates hepatic 5’ AMP-Activated Protein Kinase through sympathetic nervous system and α1 adrenergic receptor: A potential mechanism for improvement of fatt Li Yver in lipodystrophy by leptin2012

    • Author(s)
      Miyamoto L, Nakao K, et al
    • Journal Title

      J. Biol. Chem.

      Volume: 287 Issue: 48 Pages: 40441-40447

    • DOI

      10.1074/jbc.m112.384545

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Functional Magnetic Resonance Imaging Analysis of Food-Related Brain Activity in Patients with Lipodystrophy Undergoing Leptin Replacement Therapy2012

    • Author(s)
      Aotani D, Nakao K, et al
    • Journal Title

      J Clin Endocrinol Metab.

      Volume: 97 Issue: 10 Pages: 3663-3671

    • DOI

      10.1210/jc.2012-1872

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Amylin improves the effect of leptin on insulin sensitivity in leptin-resistant diet-induced obese mice2012

    • Author(s)
      T.Kusakabe, K.Ebihara, K.Nakao, et al
    • Journal Title

      Am J Physiol Endocrinol Metab

      Volume: 302 Issue: 8 Pages: E924-E931

    • DOI

      10.1152/ajpendo.00198.2011

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Presentation] 肥満症治療におけるレプチンの可能性2012

    • Author(s)
      海老原 健
    • Organizer
      第33回日本肥満学会
    • Place of Presentation
      京都市
    • Related Report
      2012 Final Research Report
  • [Presentation] Development of Leptin Deficient Rats-Evidence of Superiority Over Lepob/Lepob Mice as a Model For Human Obesity2012

    • Author(s)
      阿部 恵
    • Organizer
      19th European Congress on Obesity
    • Place of Presentation
      リヨン(フランス)
    • Related Report
      2012 Final Research Report
  • [Presentation] Development of leptindeficient Lep^<mkyo>/Lep^<mkyo> rat-evidence for its superiority over Lep^<ob>/Lep^<ob> mouse as a model for human obesity2012

    • Author(s)
      阿部 恵
    • Organizer
      15thInternational & 14thEuropean Congress of Endocrinology
    • Place of Presentation
      フィレンツェ(イタリア)
    • Related Report
      2012 Final Research Report
  • [Presentation] Dual Bioimpedanc 法を用いた内臓脂肪量測定装置のスクリーニング機器としての有用性2012

    • Author(s)
      阿部 恵
    • Organizer
      第85回日本内分泌学会学術総会
    • Place of Presentation
      名古屋市
    • Related Report
      2012 Final Research Report
  • [Presentation] 肥満2型糖尿病に対するレプチン、アミリン共投与の有用性に関する検討2012

    • Author(s)
      日下部徹
    • Organizer
      第109回日本内科学会総会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] レプチンを用いた非アルコール性脂肪肝治療の可能性に関する検討2012

    • Author(s)
      片岡祥子
    • Organizer
      第109回日本内科学会総会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] fMRIを用いた、脂肪萎縮症の食欲異常およびレプチン治療による効果の検討2012

    • Author(s)
      青谷大介
    • Organizer
      第109回日本内科学会総会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] レプチン、アミリン共投与による糖脂質代謝改善に関する検討2012

    • Author(s)
      日下部徹
    • Organizer
      第85回日本内分泌学会学術総会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Annual Research Report
  • [Presentation] 遺伝子改変ラットを用いたチアゾリジンの脂肪肝に対する効果の種族差の検討2012

    • Author(s)
      阿部 恵
    • Organizer
      第85回日本内分泌学会学術総会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Annual Research Report
  • [Presentation] Development of leptin deficient Lepmkyo/ Lepmkyo rat-evidence for its superiority over Lepob/ Lepob mouse as a model for human obesity2012

    • Author(s)
      M. Aizawa-Abe
    • Organizer
      15th International & 14th European Congress of Endocrinology
    • Place of Presentation
      Florence, Italy
    • Related Report
      2012 Annual Research Report
  • [Presentation] Leptin modulates brain neural activity associated with feeding behavior in patients with lipodystrophy2012

    • Author(s)
      D.Aotani
    • Organizer
      15th International & 14th European Congress of Endocrinology
    • Place of Presentation
      Florence, Italy
    • Related Report
      2012 Annual Research Report
  • [Presentation] Development of Leptin Deficient Rats-Evidence of Superiority Over Lepob/Lepob Mice as a Model For Human Obesity2012

    • Author(s)
      M. Aizawa-Abe
    • Organizer
      19th European Congress on Obesity
    • Place of Presentation
      Lyon, Frarnce
    • Related Report
      2012 Annual Research Report
  • [Presentation] Leptin Modullates Brain Activity Associated With Feeding Behavior in Patients With Lipodystrophy2012

    • Author(s)
      D.Aotani
    • Organizer
      19th European Congress on Obesity
    • Place of Presentation
      Lyon, Frarnce
    • Related Report
      2012 Annual Research Report
  • [Presentation] レプチン/GLP-1受容体作動薬共投与による肥満2型糖尿病治療の有用性2012

    • Author(s)
      酒井 建
    • Organizer
      第55回日本糖尿病学会年次学術集会
    • Place of Presentation
      横浜
    • Related Report
      2012 Annual Research Report
  • [Presentation] Benefical Effects of Combination Therapy With Leptin and Exenatide in a Mouse Model of Type2 Diabetes With Increased Adiposity2012

    • Author(s)
      Takeru Sakai
    • Organizer
      72nd scientific sessions American Diabetes Association
    • Place of Presentation
      Philadelphia, USA
    • Related Report
      2012 Annual Research Report
  • [Presentation] 肥満症治療におけるレプチンの可能性2012

    • Author(s)
      海老原健
    • Organizer
      第33回日本肥満学会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] レプチン/GLP-1受容体作動薬共投与による肥満2型糖尿病治療の有用性2012

    • Author(s)
      酒井 建
    • Organizer
      第33回日本肥満学会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] 脂肪萎縮症原因遺伝子seipinの生体における意義に関する検討2012

    • Author(s)
      海老原千尋
    • Organizer
      第33回日本肥満学会
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
  • [Presentation] 遺伝子改変ラットの解析とトランスレーショナルサイエンス2011

    • Author(s)
      海老原 健
    • Organizer
      第47回高血圧関連疾患モデル学会学術総会
    • Place of Presentation
      札幌市
    • Related Report
      2012 Final Research Report
  • [Presentation] レプチン欠損 ob/ob ラットの開発と糖脂質代謝解析2011

    • Author(s)
      阿部 恵
    • Organizer
      第54回日本糖尿病学会年次学術集会
    • Place of Presentation
      札幌市
    • Related Report
      2012 Final Research Report
  • [Presentation] 糖脂質代謝におけるレプチンの病態生理的意義に関する種族差の検討-レプチン欠損 ob/ob ラットの開発と解析-2011

    • Author(s)
      阿部 恵
    • Organizer
      第84回日本内分泌学会学術総会
    • Place of Presentation
      神戸市
    • Related Report
      2012 Final Research Report
  • [Presentation] Species difference of leptin effect between mouse and rat -Generation and analysis of ob/ob rat-2011

    • Author(s)
      海老原 健
    • Organizer
      Keystone symposium
    • Place of Presentation
      キーストーン(アメリカ)
    • Related Report
      2012 Final Research Report
  • [Presentation] 糖脂質代謝におけるレプチンの病態生理的意義に関する種族差の検討-レプチン欠損ob/obラットの開発と解析-2011

    • Author(s)
      阿部恵
    • Organizer
      第84回日本内分泌学会学術総会
    • Place of Presentation
      兵庫県神戸市神戸国際展示場
    • Related Report
      2011 Annual Research Report
  • [Presentation] レプチン欠損ob/obラットの開発と糖脂質代謝解析2011

    • Author(s)
      阿部恵
    • Organizer
      第54回日本糖尿病学会年次学術集会
    • Place of Presentation
      札幌市教育文化会館
    • Related Report
      2011 Annual Research Report
  • [Presentation] 遺伝子改変ラットの解析とトランスレーショナルサイエンス2011

    • Author(s)
      海老原健
    • Organizer
      第47回高血圧関連疾患モデル学会学術総会
    • Place of Presentation
      北海道大学
    • Related Report
      2011 Annual Research Report
  • [Presentation] Species difference of leptin effect between mouse and rat-Generation and analysis of ob/ob rat-2011

    • Author(s)
      海老原健
    • Organizer
      Keystone symposium
    • Place of Presentation
      アメリカ合衆国、コロラド州キーストーン
    • Related Report
      2010 Annual Research Report
  • [Presentation] Investigation of physiological role of leptin in obesity induced hypertension using a new rat model2010

    • Author(s)
      阿部 恵
    • Organizer
      第33回日本高血圧学会総会
    • Place of Presentation
      福岡市
    • Related Report
      2012 Final Research Report
  • [Presentation] 新規遺伝子変異動物作成技術を用いたレプチン遺伝子変異ラットの開発2010

    • Author(s)
      阿部 恵
    • Organizer
      第31回日本肥満学会
    • Place of Presentation
      前橋市
    • Related Report
      2012 Final Research Report
  • [Presentation] Generation of a genetically obese leptin deficient rat2010

    • Author(s)
      阿部 恵
    • Organizer
      11thInternational Congress on Obesity
    • Place of Presentation
      ストックホルム(スウェーデン)
    • Related Report
      2012 Final Research Report
  • [Presentation] Generation of a genetically obese leptin deficient rat2010

    • Author(s)
      阿部 恵
    • Organizer
      70ndscientific sessions American Diabetes Association
    • Place of Presentation
      オーランド(アメリカ)
    • Related Report
      2012 Final Research Report
  • [Presentation] Generation of a genetically obese leptin deficient rat.2010

    • Author(s)
      阿部恵
    • Organizer
      第11回国際肥満学会
    • Place of Presentation
      スウェーデン、ストックホルムInternational Fairs & Congress Center
    • Related Report
      2010 Annual Research Report
  • [Presentation] Generation of a genetically obese leptin deficient rat.2010

    • Author(s)
      阿部恵
    • Organizer
      第70回米国糖尿病学会
    • Place of Presentation
      アメリカ合衆国、フロリダ州オーランドOrange Country Convention Center
    • Related Report
      2010 Annual Research Report
  • [Presentation] Investigation of physiological role of leptin in obesity induced hypertension using a new rat model.2010

    • Author(s)
      阿部恵
    • Organizer
      第33回日本高血圧学会総会
    • Place of Presentation
      福岡県福岡市 福岡国際会議場
    • Related Report
      2010 Annual Research Report
  • [Presentation] 新規遺伝子変異動物作成技術を用いたレプチン遺伝子変異ラットの開発2010

    • Author(s)
      阿部恵
    • Organizer
      第31回日本肥満学会
    • Place of Presentation
      群馬県前橋市 煥乎堂前橋本店
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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