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In vitro evaluation of fatty acid oxidation capacity for accurate prognosis of fatty acid oxidation disorders

Research Project

Project/Area Number 19K08300
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionShimane University

Principal Investigator

Yamada Kenji  島根大学, 医学部, 特別協力研究員 (70624930)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords脂肪酸代謝異常症 / VLCAD欠損症 / CPT2欠損症 / IVPアッセイ / グルタル酸血症2型 / in vitro probe assay / FAO flux / 脂肪酸代謝能 / ペマフィブラート / 酵素活性 / タンデムマス分析 / 予後 / 重症度
Outline of Research at the Start

脂肪酸代謝異常症は細胞のエネルギー不足から重篤な低血糖や突然死を呈するような遺伝性の病気である。現在は生まれた直後に診断されるようになったが、中には生涯発症しないと思われるような無症候例も見つかる。遺伝子解析や酵素活性と言った従来の方法では、本当に生涯に渡って発症しないのか、発症するとしたらいつ頃なのかを予測することが出来ず、無症候例と推測されても厳重な治療が行われている。
本研究では、当研究室に保管してある患者由来の細胞を使って、酵素活性よりも詳しく脂肪酸代謝能を分析する方法の確立を目指している。この方法で、正確に無症候例を鑑別出来れば、過剰な治療が不要となり、患者の負担や医療費が軽減される。

Outline of Final Research Achievements

Fatty acid oxidation disorders can lead to sudden death triggered by starvation and high fever, but many patients with milder form remain asymptomatic. This study aims to differentiate between severe and milder forms by in vitro analysis using fibroblasts obtained from patients, in order to determine therapeutic plan and management based on the severity of the disease. Changing conditions of cell culture, such as culture temperature and substrate type/concentration, and using various methods to assess fatty acid oxidation capacity, such as ATP levels of culture medium and in vitro prove assay, could partially distinguish between the severe and milder forms. However, it was challenging to completely distinguish between severe and milder forms. On the other hand, it was found that culture temperature and various drugs/substrates could affect fatty acid oxidation capacity, suggesting the potential for predicting milder form through their application.

Academic Significance and Societal Importance of the Research Achievements

脂肪酸代謝異常症は非常に稀な疾患ではあるが、新生児スクリーニングで発症前診断されるケースが多い。一回の急性発作で死に至る事もあることから、乳幼児期には発熱したら入院するといった厳重な管理が行われている。しかしながら、生涯にわたって発症しないような軽症例も多く見つかっている。本研究結果からは、発症前に病気の重症度を正確に予測することは難しく、軽症が予想される症例であっても厳重な管理を行わざるを得ないことが分かった。
一方、患者由来細胞を使った実験系である程度の予後予測が出来ることから、一部の患者については重症度に見合った管理を提供できる可能性はあり、これは患者QOL向上や医療費抑制に寄与する。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (31 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (19 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 16 results,  Open Access: 12 results) Presentation (9 results) (of which Invited: 1 results) Book (3 results)

  • [Journal Article] A Japanese Boy With Spotted Fever and Overlapping Symptoms of Kawasaki Disease: A Case Report2024

    • Author(s)
      Sasaki Kosuke、Yamada Kenji、Matama Chihiro、Koike Daisuke、Hirade Tomohiro、Mashino Junji、Kato Fumihide、Taketani Takeshi
    • Journal Title

      Cureus

      Volume: -

    • DOI

      10.7759/cureus.51915

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Free Carnitine Levels During Cardiac Peri-Operative Periods with Cardiopulmonary Bypass in Pediatric Patients with Congenital Heart Diseases—Secondary Publication2023

    • Author(s)
      Yuka Tanabe, Kenji Yamada, Shigeki Nakashima, Kenji Yasuda, Maiko Tachi, Yoshifumi Fujimoto, Hironori Kobayashi, Takeshi Taketani
    • Journal Title

      Journal of Pediatric Cardiology and Cardiac Surgery

      Volume: 7 Issue: 1 Pages: 18-26

    • DOI

      10.24509/jpccs.22-015

    • ISSN
      2433-1783, 2433-2720
    • Year and Date
      2023-03-31
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The frequencies of very long-chain acyl-CoA dehydrogenase deficiency genetic variants in Japan have changed since the implementation of expanded newborn screening2022

    • Author(s)
      Osawa Yoshimitsu、Kobayashi Hironori、Tajima Go、Hara Keiichi、Yamada Kenji、Fukuda Seiji、Hasegawa Yuki、Aisaki Junko、Yuasa Miori、Hata Ikue、Okada Satoshi、Shigematsu Yosuke、Sasai Hideo、Fukao Toshiyuki、Takizawa Takumi、Yamaguchi Seiji、Taketani Takeshi
    • Journal Title

      Molecular Genetics and Metabolism

      Volume: 136 Issue: 1 Pages: 74-79

    • DOI

      10.1016/j.ymgme.2022.03.009

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical and molecular investigation of 37 Japanese patients with multiple acyl-CoA dehydrogenase deficiency: p.Y507D in ETFDH, a common Japanese variant, causes a mortal phenotype2022

    • Author(s)
      Yamada Kenji、Osawa Yoshimitsu、Kobayashi Hironori、Bo Ryosuke、Mushimoto Yuichi、Hasegawa Yuki、Yamaguchi Seiji、Taketani Takeshi
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 33 Pages: 100940-100940

    • DOI

      10.1016/j.ymgmr.2022.100940

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 人工心肺を用いた小児心臓周術期における遊離カルニチン濃度の検討2022

    • Author(s)
      田部有香,山田健治,中嶋滋記,安田謙二,城麻衣子,藤本欣史,小林弘典,竹谷 健.
    • Journal Title

      日本小児循環器学会雑誌

      Volume: 38 Pages: 29-37

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Long-Term Neurological Outcomes of Adult Patients with Phenylketonuria before and after Newborn Screening in Japan2021

    • Author(s)
      Yamada Kenji、Yamaguchi Seiji、Yokoyama Kazunori、Aoki Kikumaro、Taketani Takeshi
    • Journal Title

      International Journal of Neonatal Screening

      Volume: 7 Issue: 2 Pages: 21-21

    • DOI

      10.3390/ijns7020021

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The perioperative transition of serum biomarkers of a 1.5-year-old boy with very-long-chain acyl-CoA dehydrogenase deficiency2021

    • Author(s)
      Bo Ryosuke、Awano Hiroyuki、Yamada Kenji、Ooi Mayu、Okata Yuichi、Bitoh Yuko、Mizobuchi Satoshi、Iijima Kazumoto
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 27 Pages: 100760-100760

    • DOI

      10.1016/j.ymgmr.2021.100760

    • NAID

      120007097082

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 脂肪酸代謝異常症に対するベザフィブラートの有効性2021

    • Author(s)
      山田健治
    • Journal Title

      糖尿病・内分泌代謝科

      Volume: 53 Pages: 438-444

    • NAID

      40022729004

    • Related Report
      2021 Research-status Report
  • [Journal Article] Efficacy of bezafibrate for preventing myopathic attacks in patients with very long-chain acyl-CoA dehydrogenase deficiency2021

    • Author(s)
      Shiraishi H、Yamada K、Egawa K、Ishige M、Ochi F、Watanabe A、Kawakami S、Kuzume K、Watanabe K、Sameshima K、Nakamagoe K、Tamaoka A、Asahina N、Yokoshiki S、Kobayashi K、Miyakoshi T、Oba K、Isoe T、Hayashi H、Yamaguchi S、Sato N
    • Journal Title

      Brain and Development

      Volume: 43 Issue: 2 Pages: 214-219

    • DOI

      10.1016/j.braindev.2020.07.019

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Late-onset argininosuccinic aciduria associated with hyperammonemia triggered by influenza infection in an adolescent: A case report2020

    • Author(s)
      Osawa Yoshimitsu、Wada Aya、Ohtsu Yoshiaki、Yamada Kenji、Takizawa Takumi
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 24 Pages: 100605-100605

    • DOI

      10.1016/j.ymgmr.2020.100605

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Need for strict clinical management of patients with carnitine palmitoyltransferase II deficiency: Experience with two cases detected by expanded newborn screening2020

    • Author(s)
      Bo Ryosuke、Musha Ikuma、Yamada Kenji、Kobayashi Hironori、Hasegawa Yuki、Awano Hiroyuki、Arao Masato、Kikuchi Toru、Taketani Takeshi、Ohtake Akira、Yamaguchi Seiji、Iijima Kazumoto
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 24 Pages: 100611-100611

    • DOI

      10.1016/j.ymgmr.2020.100611

    • NAID

      120006882474

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-Term Outcomes of Adult Patients with Homocystinuria before and after Newborn Screening2020

    • Author(s)
      Yamada Kenji、Yokoyama Kazunori、Aoki Kikumaro、Taketani Takeshi、Yamaguchi Seiji
    • Journal Title

      International Journal of Neonatal Screening

      Volume: 6 Issue: 3 Pages: 60-60

    • DOI

      10.3390/ijns6030060

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Flavin adenine dinucleotide synthase deficiency due to FLAD1 mutation presenting as multiple acyl-CoA dehydrogenation deficiency-like disease: A case report2019

    • Author(s)
      Yamada Kenji、Ito Michinori、Kobayashi Hironori、Hasegawa Yuki、Fukuda Seiji、Yamaguchi Seiji、Taketani Takeshi
    • Journal Title

      Brain and Development

      Volume: 41 Issue: 7 Pages: 638-642

    • DOI

      10.1016/j.braindev.2019.04.002

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Japanese case of mitochondrial 3‐hydroxy‐3‐methylglutaryl‐CoA synthase deficiency who presented with severe metabolic acidosis and fatty liver without hypoglycemia2019

    • Author(s)
      Lee Tomoko、Takami Yuichi、Yamada Kenji、Kobayashi Hironori、Hasegawa Yuki、Sasai Hideo、Otsuka Hiroki、Takeshima Yasuhiro、Fukao Toshiyuki
    • Journal Title

      JIMD Reports

      Volume: 48 Issue: 1 Pages: 19-25

    • DOI

      10.1002/jmd2.12051

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical course in a patient with myopathic VLCAD deficiency during pregnancy with an affected baby2019

    • Author(s)
      Yamada Kenji、Matsubara Keiichi、Matsubara Yuko、Watanabe Asami、Kawakami Sanae、Ochi Fumihiro、Kuwabara Kozue、Mushimoto Yuichi、Kobayashi Hironori、Hasegawa Yuki、Fukuda Seiji、Yamaguchi Seiji、Taketani Takeshi
    • Journal Title

      JIMD Reports

      Volume: 49 Issue: 1 Pages: 17-20

    • DOI

      10.1002/jmd2.12061

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Open-label clinical trial of bezafibrate treatment in patients with fatty acid oxidation disorders in Japan; 2nd report QOL survey2019

    • Author(s)
      Shiraishi H、Yamada K、Oki E、Ishige M、Fukao T、Hamada Y、Sakai N、Ochi F、Watanabe A、Kawakami S、Kuzume K、Watanabe K、Sameshima K、Nakamagoe K、Tamaoka A、Asahina N、Yokoshiki S、Miyakoshi T、Oba K、Isoe T、Hayashi H、Yamaguchi S、Sato N
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 20 Pages: 100496-100496

    • DOI

      10.1016/j.ymgmr.2019.100496

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum C14:1/C12:1 ratio is a useful marker for differentiating affected patients with very long-chain acyl-CoA dehydrogenase deficiency from heterozygous carriers2019

    • Author(s)
      Yamada Kenji、Osawa Yoshimitsu、Kobayashi Hironori、Hasegawa Yuki、Fukuda Seiji、Yamaguchi Seiji、Taketani Takeshi
    • Journal Title

      Molecular Genetics and Metabolism Reports

      Volume: 21 Pages: 100535-100535

    • DOI

      10.1016/j.ymgmr.2019.100535

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【指定難病ペディア 2019】個別の指定難病 代謝・内分泌系 グルタル酸血症2型[指定難病250]2019

    • Author(s)
      山田健治
    • Journal Title

      日本医師会雑誌

      Volume: 148 Pages: 282-282

    • Related Report
      2019 Research-status Report
  • [Journal Article] 【高血糖と低血糖-どう対応するか】低血糖の病態、診断と治療 脂肪酸代謝異常症(解説/特集)2019

    • Author(s)
      山田健治
    • Journal Title

      小児内科

      Volume: 51 Pages: 1026-1030

    • Related Report
      2019 Research-status Report
  • [Presentation] グルタル酸血症2型の日本人患者37名の臨床的遺伝学的特徴2023

    • Author(s)
      山田健治、大澤好充、小林弘典、坊亮輔、虫本雄一、長谷川有紀、山口清次、竹谷健
    • Organizer
      先天代謝異常学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ペマフィブラートは脂肪酸代謝異常症患者由来の皮膚線維芽細胞に対して効果がない2022

    • Author(s)
      山田健治、大澤好充、松井美樹、小林弘典、長谷川有紀、野津吉友、竹谷健
    • Organizer
      第63回日本先天代謝異常学会
    • Related Report
      2022 Research-status Report
  • [Presentation] ケトン性低血糖を契機に診断されたヘテロ接合PHKA2 p.G991Aバリアントを有する2歳女児例2022

    • Author(s)
      真玉千紘、小林弘典、山田健治、松井美樹、長谷川有紀、加藤文英、山口清次、竹谷健
    • Organizer
      第63回日本先天代謝異常学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 過去10年間で成人期に診断された、有機酸・脂肪酸代謝異常症の検討2022

    • Author(s)
      井美樹、小林弘典、野津吉友、山田健治、長谷川有紀、大澤好充、山口清次、竹谷健
    • Organizer
      第63回日本先天代謝異常学会
    • Related Report
      2022 Research-status Report
  • [Presentation] ケトン性低血糖とカルニチン欠乏2021

    • Author(s)
      松井美樹、小林弘典、山田健治、長谷川有紀、竹谷健
    • Organizer
      第62回 先天代謝異常学会
    • Related Report
      2021 Research-status Report
  • [Presentation] ケトンをどう解釈する2021

    • Author(s)
      山田健治
    • Organizer
      第17回 先天代謝異常セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] リボフラビン代謝障害によるグルタル酸血症 2 型:新生児スクリーニングで発見された FAD 合成酵素欠損症の 1 例2020

    • Author(s)
      山田健治
    • Organizer
      第47回 日本マススクリーニング学会
    • Related Report
      2020 Research-status Report
  • [Presentation] VLCAD欠損症の診断指標の検討:ろ紙血および血清のC14:1、C14:1/C2比、C14:1/C12:1比、C14:1/C16比の比較2019

    • Author(s)
      山田健治、大澤好充、小林弘典、長谷川有紀、山口清次、竹谷健
    • Organizer
      第61回日本先天代謝異常学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 追跡可能な成人ホモシスチン尿症患者の主治医を対象にした長期予後のアンケート調査2019

    • Author(s)
      山田健治、山口清次、竹谷健、横山和紀、青木菊麿
    • Organizer
      第46回日本マススクリーニン学会
    • Related Report
      2019 Research-status Report
  • [Book] 外来で見つける先天代謝異常症-シマウマ診断の勧め2023

    • Author(s)
      窪田満(編集)、山田健治(執筆者)
    • Total Pages
      352
    • Publisher
      中山書店
    • Related Report
      2023 Annual Research Report
  • [Book] 小児疾患診療のための病態生理3 改訂版6版.小児内科2022 Vol.54 増刊号.2022

    • Author(s)
      山田健治
    • Total Pages
      1160
    • Publisher
      東京医学社
    • Related Report
      2022 Research-status Report
  • [Book] よくわかる新生児マススクリーニングガイドブック2019

    • Author(s)
      山口 清次
    • Total Pages
      220
    • Publisher
      診断と治療社
    • ISBN
      9784787823892
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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