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Exome and lipidome analysis to elucidate the mechanisms of sudden death with hepatic steatosis

Research Project

Project/Area Number 22K10601
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58040:Forensics medicine-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Takahashi Yoichiro  筑波大学, 医学医療系, 教授 (50640538)

Co-Investigator(Kenkyū-buntansha) 川端 麗香  群馬大学, 未来先端研究機構, 講師 (90721928)
大嶋 紀安  群馬大学, 大学院医学系研究科, 助教 (30360514)
平野 瞳子  群馬大学, 大学院医学系研究科, 技術職員 (20643810)
大日方 英  群馬大学, 大学院医学系研究科, 准教授 (50332557)
窪 理英子  群馬大学, 医学部, 技術職員 (40747127)
佐野 利恵  群馬大学, 大学院医学系研究科, 准教授 (70455955)
早川 輝  群馬大学, 大学院医学系研究科, 講師 (90758575)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2023: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsエクソーム / リピドーム / 高度脂肪肝 / 突然死 / 脂肪酸代謝 / 脂肪肝 / 脂肪酸 / 代謝異常
Outline of Research at the Start

突然死は種々の原因で生じるが、高度脂肪肝を伴う例が知られている。脂肪肝の原因は様々であるが、脂肪酸代謝異常により生じる場合がある。申請者らの予備研究で、脂肪肝を伴う成人期突然死の複数例で同一個人の脂肪酸代謝関連遺伝子に多数の既知や新規の変異が見出され(未発表)、複数の変異が相乗的に作用し突然死に至る可能性が示された。そこで本研究では、原因不明の高度脂肪肝を伴う成人期突然死例に対する網羅的なエクソーム解析とリピドーム解析を起点として、本邦の突然死例の分子基盤解明や診断法確立を目指す。

Outline of Final Research Achievements

We aimed to elucidate the molecular basis and establish diagnostic methods for sudden death cases with severe fatty liver. First, we conducted exome analysis. Next, fatty components were extracted from liver tissues of cases with mutations in fatty acid metabolism-related genes. Then, lipidome analysis was performed. In addition, quantitative evaluation of fatty liver tissue using fat staining and postmortem CT values were carried out. Although we are in the process of analyzing the obtained data in detail, we have obtained preliminary results that suggest a correlation between the presence of genetic mutations and the values of histological findings and postmortem CT values. Specifically, it has been suggested that higher CT values in liver are related with the presence of genetic mutations.

Academic Significance and Societal Importance of the Research Achievements

突然死は種々の原因で生じるが、高度脂肪肝を伴う例が知られている。その機序解明や、突然死リスクの分析が可能となれば、医学及び公衆衛生への寄与は大きい。本研究では、脂肪酸代謝関連遺伝子の変異と組織学的所見・死後CT値との値の相関の一部が明かされ、具体的には、遺伝子変異のあった症例では優位に高い肝臓CT値が得られることが示唆された。これらの結果は、突然死の発症リスクの分析を可能にする可能性がある。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (23 results)

All 2025 2024 2023 2022

All Journal Article (14 results) (of which Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] FATP1-mediated fatty acid uptake in renal tubular cells as a countermeasure for hypothermia2025

    • Author(s)
      Horioka Kie、Tanaka Hiroki、Watanabe Shimpei、Yamada Shinnosuke、Takauji Shuhei、Hayakawa Akira、Isozaki Shotaro、Okaba Keisuke、Ishii Namiko、Motomura Ayumi、Inoue Hiroyuki、Addo Lynda、Yajima Daisuke、Takahashi Yoichiro、Druid Henrik、Pakanen Lasse、Porvari Katja
    • Journal Title

      Journal of Molecular Medicine

      Volume: - Issue: 4 Pages: 403-419

    • DOI

      10.1007/s00109-025-02525-0

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of a random forest regression model to estimate the age of bloodstains based on temporal colorimetric analysis2024

    • Author(s)
      Seki Tomohiro、Hsiao Yi-Yang、Ishizawa Fujio、Sugano Yukiko、Takahashi Yoichiro
    • Journal Title

      Legal Medicine

      Volume: 69 Pages: 102343-102343

    • DOI

      10.1016/j.legalmed.2023.102343

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Detection Method for Gene Doping in a Mouse Model Expressing Human Erythropoietin from Adeno-Associated Virus Vector-92024

    • Author(s)
      Sugasawa Takehito、Hirokawa Atsushi、Otani Norihiro、Kanki Yasuharu、Nguyen Kieu DM、Takemasa Tohru、Watanabe Koichi、Takeuchi Yoshinori、Yahagi Naoya、Takahashi Yoichiro
    • Journal Title

      Genes

      Volume: 15 Issue: 6 Pages: 709-709

    • DOI

      10.3390/genes15060709

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Identification and Characterization of Yeast Species Isolated from Cornus kousa Fruits in Japan2024

    • Author(s)
      Otani Norihiro、Nguyen Kieu D. M.、Hirokawa Atsushi、Kanki Yasuharu、Yun Hyun-Sik、Maeda Yoshiaki、Gu Wenchao、Takahashi Yoichiro、Sugasawa Takehito
    • Journal Title

      Fermentation

      Volume: 10 Issue: 6 Pages: 288-288

    • DOI

      10.3390/fermentation10060288

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Whole Mitochondrial DNA Sequencing Using Fecal Samples from Domestic Dogs2024

    • Author(s)
      Sugasawa Takehito、Nguyen Kieu D. M.、Otani Norihiro、Maehara Kiyoshi、Kamiya Fuka、Hirokawa Atsushi、Takemasa Tohru、Watanabe Koichi、Nishi Takeki、Sato Ken、Shimmura Suzuka、Takahashi Yoichiro、Kanki Yasuharu
    • Journal Title

      Animals

      Volume: 14 Issue: 19 Pages: 2872-2872

    • DOI

      10.3390/ani14192872

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Development of a detector tube for screening tadalafil and its analogues in adulterated sexual enhancement products2023

    • Author(s)
      Ichikawa‐Kaji Yoko、Ishizawa Fujio、Nishiyama Rei、Tachikawa Hajime、Uemura Nozomi、Moriuchi Yuka、Hsiao Yi‐Yang、Moriyasu Takako、Suzuki Toshinari、Takahashi Yoichiro、Inomata Akiko
    • Journal Title

      Drug Testing and Analysis

      Volume: 15 Issue: 3 Pages: 345-360

    • DOI

      10.1002/dta.3424

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Establishing a Sequencing Method for the Whole Mitochondrial DNA of Domestic Dogs2023

    • Author(s)
      Sugasawa Takehito、Matsumoto Yuki、Fang Hui、Takemasa Tohru、Komine Ritsuko、Tamai Shinsuke、Gu Wenchao、Tanaka Kei、Kanki Yasuharu、Takahashi Yoichiro
    • Journal Title

      Animals

      Volume: 13 Issue: 14 Pages: 2332-2332

    • DOI

      10.3390/ani13142332

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Postmortem genetic analysis of 17 sudden cardiac deaths identified nonsense and frameshift variants in two cases of arrhythmogenic cardiomyopathy2023

    • Author(s)
      Takahashi Yoichiro、Fukuda Haruki、Hayakawa Akira、Sano Rie、Kubo Rieko、Kawabata-Iwakawa Reika、Nakajima Tadashi、Ishige Takashi、Tokue Hiroyuki、Asano Kazuya、Seki Tomohiro、Hsiao Yi-Yang、Ishizawa Fujio、Takei Hiroyuki、Kominato Yoshihiko
    • Journal Title

      International Journal of Legal Medicine

      Volume: 137 Issue: 6 Pages: 1927-1937

    • DOI

      10.1007/s00414-023-03037-7

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Usefulness of virtual reassembly of the skull and spine in cases of fragmentation due to high-energy trauma: A feasibility study2023

    • Author(s)
      Fukuda Haruki、Hayakawa Akira、Tokue Hiroyuki、Takahashi Yoichiro、Kominato Yoshihiko、Sano Rie
    • Journal Title

      Legal Medicine

      Volume: 64 Pages: 102281-102281

    • DOI

      10.1016/j.legalmed.2023.102281

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Applicability of postmortem CT organ-selective volume rendering in evaluating liver and heart injuries2023

    • Author(s)
      Fukuda Haruki、Hayakawa Akira、Tokue Hiroyuki、Takahashi Yoichiro、Nagaoka Arisa、Kubo Rieko、Kominato Yoshihiko、Sano Rie
    • Journal Title

      Forensic Imaging

      Volume: 35 Pages: 200568-200568

    • DOI

      10.1016/j.fri.2023.200568

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Hypothermic death resulting from extreme freezing with characteristic postmortem computed tomography findings: A case report and review of the literature2023

    • Author(s)
      Tokue Hiroyuki、Sano Rie、Takahashi Yoichiro、Hayakawa Akira、Fukuda Haruki、Tokue Azusa、Kominato Yoshihiko、Tsushima Yoshito
    • Journal Title

      Radiology Case Reports

      Volume: 18 Issue: 4 Pages: 1423-1426

    • DOI

      10.1016/j.radcr.2023.01.007

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Emergence of an erythroid cell-specific regulatory region in ABO intron 1 attributable to A- or B-antigen expression on erythrocytes in Hominoidea2023

    • Author(s)
      Sano Rie、Fukuda Haruki、Kubo Rieko、Oishi Takao、Miyabe-Nishiwaki Takako、Kaneko Akihisa、Masato Haruhisa、Takahashi Yoichiro、Hayakawa Akira、Yazawa Shin、Kominato Yoshihiko
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 4947-4947

    • DOI

      10.1038/s41598-023-31961-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Post-traumatic cerebral infarction caused by thrombus in the middle cerebral artery2023

    • Author(s)
      Hayakawa Akira、Sano Rie、Takahashi Yoichiro、Fukuda Haruki、Okawa Takafumi、Kubo Rieko、Takei Hiroyuki、Komatsu Takakazu、Tokue Hiroyuki、Sawada Yusuke、Oshima Kiyohiro、Horioka Kie、Kominato Yoshihiko
    • Journal Title

      Journal of Forensic and Legal Medicine

      Volume: 93 Pages: 102474-102474

    • DOI

      10.1016/j.jflm.2022.102474

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Usefulness of a tissue optical clearing technique for forensic autopsy2022

    • Author(s)
      Takahashi Yoichiro、Hayakawa Akira、Sano Rie、Fukuda Haruki、Kubo Rieko、Tokue Hiroyuki、Okawa Takafumi、Kawamura Miki、Kominato Yoshihiko
    • Journal Title

      Journal of Forensic Sciences

      Volume: - Issue: 3 Pages: 1124-1131

    • DOI

      10.1111/1556-4029.14995

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 腎尿細管細胞における低体温誘導性脂肪蓄積による生体防御機構2024

    • Author(s)
      堀岡希衣、田中宏樹、早川輝、高橋遥一郎、Porvari Katja
    • Organizer
      第47回日本分子生物学会年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Biological significance of renal tubular lipid droplet formation in hypothermia.2024

    • Author(s)
      K. Horioka, H. Tanaka, A. Hayakawa, Y. Takahashi, L. Pakanen, K. Porvari.
    • Organizer
      The International Academy of Legal Medicine Meeting
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lipid droplet formation and beta-oxidation in renal tubules in hypothermia.2024

    • Author(s)
      K. Horioka, H. Tanaka, A. Hayakawa, Y. Takahashi, L. Pakanen, K. Porvari.
    • Organizer
      The 22th Nordic Conference of Forensic Medicine
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 法医解剖を端緒とした医学研究と社会への還元2023

    • Author(s)
      高橋 遥一郎
    • Organizer
      第31回日本医学会総会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] Machine learning analysis of spectrophotometric colorimetric change to estimate chronological age bloodstains and postmortem interval2023

    • Author(s)
      Seki Tomohiro; Hsiao Yi-Yang; Ishizawa Fujio; Sugano Yukiko; Takahashi Yoichiro
    • Organizer
      The 23rd triennial meeting of the international association of Forensic Sciences
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] 自身のキャリアの回顧的な意味づけ2022

    • Author(s)
      高橋 遥一郎
    • Organizer
      第31回DNA多型学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 法医解剖を端緒とした死後脳研究2022

    • Author(s)
      高橋 遥一郎
    • Organizer
      第57回日本アルコール・アディクション医学会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 法医解剖を端緒とした精神疾患の死後脳研究2022

    • Author(s)
      高橋 遥一郎
    • Organizer
      第49回日本毒性学会学術年会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 法医解剖における 組織透明化手法の有用性2022

    • Author(s)
      高橋 遥一郎
    • Organizer
      第106次日本法医学会学術全国集会
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2026-01-16  

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