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2008 Fiscal Year Annual Research Report

血清コリンとコリン標識画像診断を用いた非アルコール性脂肪肝炎の新規診断法開発

Research Project

Project/Area Number 20890185
Research InstitutionYokohama City University

Principal Investigator

藤田 浩司  Yokohama City University, 附属病院, 助教 (30468160)

Keywords内科 / 脂質 / トランスレーショナルリサーチ / 放射線 / 臨床
Research Abstract

(1)血清コリン測定による簡便な非アルコール性脂肪肝炎の血清診断法の開発
種々の病態における血清コリン値測定を行いNASH病態でのみ特異的に発現亢進している事が示された。LC-mass法の問題点として、測定に費用・技術・時間を必要とする為、診断マーカーへの応用は非現実的であった為、次に血清コリン値測定に関し簡易測定法の開発に努めた。株式会社スカイライト・バイオテック、東洋紡の技術協力のもと行い、現行のLC-mass法と感度99.5%以上の相関性を有するHPLC法での測定系を確立した。費用・技術・時間といった問題をを大幅に改善した事で、健診や人間ドック等の大規模網羅測定も理論上可能となった。
(2)^<11>C-コリンPET-CTを用いた非アルコール性脂肪肝炎の超早期確定診断法の開発
肝生検により確定診断の得られた各種病態(健常人8例/単純性脂肪肝患者14例/NASH患者16例)における^<11>C-コリンPET-CTを用いたリン脂質代謝能を測定するパイロットスタディーを行い、各種病態毎の肝臓コリン代謝動態を図る事に成功した。“11C-choline PETを用いた非アルコール性脂肪肝炎(NASH)の画像診断についての研究"という名称のもと、一般型先進医療をすすめている(承認番号【一般型20-110】)。
(3)非アルコール性脂肪肝炎におけるコリン過剰症のメカニズム解明
血液サンプルをHPLCリポタンパク測定システムを用いて脂質分画を測定し、コリン過剰症と脂質代謝の関係について分析を行い診断法の有用性を立証すると同時に、肝生検サンプルを用いて肝臓内の種々の脂質代謝因子に関するmRNA/蛋白発現を測定しメカニズム解析に努めた。単純性脂肪肝からNASHへの病態進展に伴いアポ蛋白BとミクロソームTG輸送蛋白の発現量が低下する事で肝臓からの中性脂肪分泌能が低下し、肝臓でのリン脂質代謝能が低下する事で、リン脂質の構成成分であるコリンの肝における利用障害が起こり、余剰コリンが血中に蓄積する事で血中コリン値が高値になっている事が証明された。

  • Research Products

    (36 results)

All 2008

All Journal Article (24 results) (of which Peer Reviewed: 24 results) Presentation (6 results) Book (5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Effectiveness of antiplatelet drugs against experimental non-alcoholic fatty liver disease.2008

    • Author(s)
      Koji Fujita
    • Journal Title

      Gut 57

      Pages: 1583-1591

    • Peer Reviewed
  • [Journal Article] Nitric Oxide Plays a Crucial Role in the Development/Progression of Nonalcoholic Steatohepatitis in the Choline-Deficient, 1-Amino Acid-Defined Diet-Fed Rat Model.2008

    • Author(s)
      Koji Fujita
    • Journal Title

      Alcoholism : Clinical and Experimental Research 33

      Pages: 1-7

    • Peer Reviewed
  • [Journal Article] Effects of body positions on gastric emptying with enteral nutrition : a crossover study using a continuous real time 13C breath test (BreathID system).2008

    • Author(s)
      Tamon Ikeda, Koji Fujita
    • Journal Title

      Hepatogastroenterology 55

      Pages: 1905-1907

    • Peer Reviewed
  • [Journal Article] Gastric surgery is not a risk factor for the development or progression of Barrett's epithelium.2008

    • Author(s)
      Tomoyuki Akiyama, Koji Fujita
    • Journal Title

      Hepatogastroenterology 55

      Pages: 1899-1904

    • Peer Reviewed
  • [Journal Article] Effective treatment for advanced hepatocellular carcinoma with portal venous invasion using a combination therapy of intra-arterial 5-fluorou racil and subcutaneous pegylated-interferon-alpha-2b.2008

    • Author(s)
      Hironori Mawatari, Koji Fujita
    • Journal Title

      Hepatogastroenterology 55

      Pages: 1776-1777

    • Peer Reviewed
  • [Journal Article] Alcohol consumption is associated with an increased risk of erosive esophagitis and Barrett's epithelium in Japanese men.2008

    • Author(s)
      Tomoyuki Akiyama, Koji Fujita
    • Journal Title

      BMC Gastroenterology 8

      Pages: 58

    • Peer Reviewed
  • [Journal Article] Differentiating sclerosing cholangitis caused by autoimmune pancreatitis and primary sclerosing cholangitis according to endoscopic duodenal papillary features.2008

    • Author(s)
      Kensuke Kubota, Koji Fujita
    • Journal Title

      Gastrointestinal Endoscopy. 68

      Pages: 1204-1208

    • Peer Reviewed
  • [Journal Article] Association of visceral fat accumulation and plasma adiponectin with rectal dysplastic aberrant crypt foci in a clinical population.2008

    • Author(s)
      Hirokazu Takahashi, Koji Fujita
    • Journal Title

      Cancer Science 100

      Pages: 29-32

    • Peer Reviewed
  • [Journal Article] Inhibition of peroxisome proliferator-activated receptor gamma activity suppresses pancreatic cancer cell motility2008

    • Author(s)
      Atsushi Nakajima, Koji Fujita
    • Journal Title

      Cancer Science 99

      Pages: 1892-1900

    • Peer Reviewed
  • [Journal Article] Plasma Pentraxin3 is a Novel Marker for Nonalcoholic Steatohepatitis (NASH).2008

    • Author(s)
      Masato Yoneda, Koji Fujita
    • Journal Title

      BMC Gastroenterology 8

      Pages: 53-59

    • Peer Reviewed
  • [Journal Article] Adenosquamous carcinoma of the pancreas associated with humoral hy percalcemia of malignancy (HHM).2008

    • Author(s)
      Noritoshi Kobayashi, Koji Fujita
    • Journal Title

      Journal of Hepatoblliary Pancreatic Surgery 15

      Pages: 531-535

    • Peer Reviewed
  • [Journal Article] Abdominal Surgery Affects Small Bowel Transit Time and Completeness of Capsule Endoscopy2008

    • Author(s)
      Hiroki Endo, Koji Fujita
    • Journal Title

      Digestive Disease and Sciences 54

      Pages: 1066-1070

    • Peer Reviewed
  • [Journal Article] Expression of adiponectin receptors, AdipoRl and AdipoR2, in normal colon epithelium and colon cancer tissue2008

    • Author(s)
      Kyoko Yoneda, Koji Fujita
    • Journal Title

      Oncology Reports 20

      Pages: 479-483

    • Peer Reviewed
  • [Journal Article] Severe large-intestine involvement in adult-onset Henoch-Schonlein purpura : successful treatment with factor XIII concentrate2008

    • Author(s)
      Kunihiro Hosono, Koji Fujita
    • Journal Title

      Digestion 78

      Pages: 9

    • Peer Reviewed
  • [Journal Article] Tumor fragment impacted at the major duodenal papilla causing obstructive jaundice in a patient with hepatocellular carcinoma2008

    • Author(s)
      Noritoshi Kobayashi, Koji Fujita
    • Journal Title

      Gastrointestinal Endoscopy 68

      Pages: 999-1000

    • Peer Reviewed
  • [Journal Article] Gene expression profiling of non-alcoholic steatohepatitis using gene set enrichment analysis2008

    • Author(s)
      Masato Yoneda, Koji Fujita
    • Journal Title

      Hepatology Research 38

      Pages: 1204-1212

    • Peer Reviewed
  • [Journal Article] Association between PPARGC1A polymorphisms and the occurrence of nonalcoholic fatty liver disease (NAFLD)2008

    • Author(s)
      Masato Yoneda, Koji Fujita
    • Journal Title

      BMC Gastroenterology

      Pages: 27-34

    • Peer Reviewed
  • [Journal Article] Tumorous arteriovenous malformation in the jejunum missed by capsule endoscopy2008

    • Author(s)
      Hiroki Endo, Koji Fujita
    • Journal Title

      Gastrointestinal Endoscopy 68

      Pages: 773-774

    • Peer Reviewed
  • [Journal Article] Colonic metastasis from hepatocellular carcinoma : manifested by gastrointestinal bleeding.2008

    • Author(s)
      Yuichi Nozaki, Koji Fujita
    • Journal Title

      Digestive Disease and Sciences 53

      Pages: 3265-3266

    • Peer Reviewed
  • [Journal Article] Usefulness of multidetector computed tomography for detection of the obstructive point in a patient with ileus2008

    • Author(s)
      Eiji Sakai, Koji Fujita
    • Journal Title

      Digestive Disease and Sciences 53

      Pages: 3264

    • Peer Reviewed
  • [Journal Article] Characterization of K-ras Gene Mutations in Association with Mucinous Hypersecretion in Intraductal Papillary- Mucinous Neoplasms2008

    • Author(s)
      Noritoshi Kobayashi, Koji Fujita
    • Journal Title

      Journal of Hepatobiliary Pancreatic Surgery 15

      Pages: 169-177

    • Peer Reviewed
  • [Journal Article] Acute appendicitis associated with Peutz-Jeghers-type hamartoma of the appendix2008

    • Author(s)
      Hiroshi Iida, Koji Fujita
    • Journal Title

      Digestive Disease and Sciences 53

      Pages: 2832-2833

    • Peer Reviewed
  • [Journal Article] Neither the presence of metabolic syndrome as defined by the IDF guideline nor an increased waist circumference increased the risk of microvascular or macrovascular complications in Japanese patients with type 2 diabestes2008

    • Author(s)
      Tomoyuki Iwasaki, Koji Fujita
    • Journal Title

      Diabetes Research and Clinical Practice 79

      Pages: 427-432

    • Peer Reviewed
  • [Journal Article] Levovist ultrasonography imaging in intracystic hemorrhage of simple liver cyst2008

    • Author(s)
      Tomoyuki Akiyama, Koji Fujita
    • Journal Title

      World Journal of Gastroenterology 14

      Pages: 805-807

    • Peer Reviewed
  • [Presentation] 非肥満NASH患者に対するVit. E+EPL併用療法の有用性.2008

    • Author(s)
      藤田浩司
    • Organizer
      第16回日本消化器関連学会週間
    • Place of Presentation
      品川
    • Year and Date
      2008-10-02
  • [Presentation] 高血圧のみ合併したNASH患者に対するARBの有用性2008

    • Author(s)
      藤田浩司
    • Organizer
      第16回日本消化器関連学会週間
    • Place of Presentation
      品川
    • Year and Date
      2008-10-02
  • [Presentation] 脂質に注目したNASHの病態解析2008

    • Author(s)
      藤田浩司
    • Organizer
      横浜肝疾患研究会
    • Place of Presentation
      横浜
    • Year and Date
      2008-07-11
  • [Presentation] Novel diagnostic approach for NASH using [11C] choline dynamic PET imaging. Yokohama City University Division of Gastroenterology2008

    • Author(s)
      Koji Fujita
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-20
  • [Presentation] Novel diagnostic approach for NASH using [11C]choline dynamic PET imaging.2008

    • Author(s)
      Koji Fujita
    • Organizer
      16^<th> UEGW
    • Place of Presentation
      Vienna, Austria
    • Year and Date
      2008-05-20
  • [Presentation] 坑血小板薬のNAFLD病態改善効果-NAFLD病態モデルラットを用いた検討-2008

    • Author(s)
      藤田浩司
    • Organizer
      第94回日本消化器病学会総会
    • Place of Presentation
      福岡
    • Year and Date
      2008-05-10
  • [Book] Which is the best monitoring study (tumor marker, computed tomography or 18F-fluoro-2-deoxy-D-glucose positron emission tomography) to evaluate efficacy of chemotherapy on unresectable pancreatic cancer?2008

    • Author(s)
      藤田浩司
    • Total Pages
      6
    • Publisher
      癌と化学療法
  • [Book] NASH病態形成におけるiNOS由来一酸化窒素の意義2008

    • Author(s)
      藤田浩司
    • Total Pages
      2
    • Publisher
      G. I. Research
  • [Book] NAFLD/NASHの診断2008

    • Author(s)
      藤田浩司
    • Total Pages
      5
    • Publisher
      最新医学
  • [Book] レーザー治療(適応と成績, 合併症)2008

    • Author(s)
      藤田浩司
    • Total Pages
      5
    • Publisher
      消化器外科
  • [Book] 食物アレルギー2008

    • Author(s)
      藤田浩司
    • Total Pages
      4
    • Publisher
      Pharmavision
  • [Patent(Industrial Property Rights)] 非アルコール性脂肪肝障害の検査方法2008

    • Inventor(s)
      藤田浩司
    • Industrial Property Rights Holder
      藤田浩司
    • Industrial Property Number
      特願2008-188560
    • Filing Date
      2008-07-22

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Published: 2010-06-11   Modified: 2016-04-21  

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