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2023 Fiscal Year Annual Research Report

超巨大児を産むための安産形質

Research Project

Project/Area Number 21K19291
Research InstitutionUniversity of Tsukuba

Principal Investigator

小薮 大輔  筑波大学, プレシジョン・メディスン開発研究センター, 准教授 (60712510)

Co-Investigator(Kenkyū-buntansha) 武智 正樹  順天堂大学, 医学部, 准教授 (10455355)
Project Period (FY) 2021-07-09 – 2024-03-31
Keywords出産
Outline of Annual Research Achievements

産は人類永遠の願いであり,難産は人類永遠の悩みだ.近代医学が十分に発達する以前の1900年の日本では妊産婦10万人中397人が死亡し,こんにちでも10万人中4人が子宮内大量出血などで死亡する(2018年度厚生労働省人口統計).難産を原因とする胎児の分娩中死亡も0.5%の割合で発生するとされ,ヒトにとって出産は母子ともに命懸けの生活史イベントといえる.本研究課題はコウモリ類をモデルとして哺乳類における安産を可能にする形態学的基盤を明らかにし,本課題を端緒として「出産の進化形態学」を起創することを目指した.コンピューター上で骨盤,筋,靭帯,生殖器を再構築し,種間比較と雌雄の性差比較を行ってコウモリ類のメスに共通する質的・量的・幾何的形質を抽出するとともに,非妊娠時~各妊娠ステージにかけてRLN1 ,MMP,FIB5,LOXL1の発現量がどの部位で変動するのか定量的にその動態を明らかにした.

  • Research Products

    (9 results)

All 2024 2023

All Journal Article (9 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 9 results,  Open Access: 5 results)

  • [Journal Article] Development of the hyolaryngeal architecture in horseshoe bats: insights into the evolution of the pulse generation for laryngeal echolocation2024

    • Author(s)
      Nojiri Taro、Takechi Masaki、Furutera Toshiko、Brualla Nicolas L. M.、Iseki Sachiko、Fukui Dai、Tu Vuong Tan、Meguro Fumiya、Koyabu Daisuke
    • Journal Title

      EvoDevo

      Volume: 15 Pages: 2

    • DOI

      10.1186/s13227-024-00221-7

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative anatomy of the vocal apparatus in bats and implications for the diversity of laryngeal echolocation2024

    • Author(s)
      Brualla Nicolas L M、Wilson Laura A B、Tu Vuong Tan、Nojiri Taro、Carter Richard T、Ngamprasertwong Thongchai、Wannaprasert Thanakul、Doube Michael、Fukui Dai、Koyabu Daisuke
    • Journal Title

      Zoological Journal of the Linnean Society

      Volume: in press Pages: in press

    • DOI

      10.1093/zoolinnean/zlad180

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anatomy and homology of the caudal auricular muscles in greater short-nosed fruit bat (<i>Cynopterus sphinx</i>)2023

    • Author(s)
      CHI Tzu-Chin、MEGURO Fumiya、TAKECHI Masaki、FURUTERA Toshiko、TU Vuong Tan、HIGASHIYAMA Hiroki、SOHN JoonHyuk、NOJIRI Taro、KIMURA Junpei、KOYABU Daisuke
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 85 Pages: 571~577

    • DOI

      10.1292/jvms.23-0088

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Timing of organogenesis underscores the evolution of neonatal life histories and powered flight in bats2023

    • Author(s)
      Nojiri Taro、Werneburg Ingmar、Tu Vuong Tan、Fukui Dai、Takechi Masaki、Iseki Sachiko、Furutera Toshiko、Koyabu Daisuke
    • Journal Title

      Proceedings of the Royal Society B: Biological Sciences

      Volume: 290 Pages: 20221928

    • DOI

      10.1098/rspb.2022.1928

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Caudal auricular muscle variations and the evolution of echolocation behavior in pteropodid bats2023

    • Author(s)
      CHI Tzu-Chin、TU Vuong Tan、SOHN JoonHyuk、KIMURA Junpei、KOYABU Daisuke
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 85 Pages: 625~630

    • DOI

      10.1292/jvms.23-0128

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A taxonomic reassessment of Rhinolophus rex Allen, 1923 and its allies (Chiroptera: Rhinolophidae)2023

    • Author(s)
      Tu Vuong Tan、Furey Neil M.、Gorfol Tamas、Hassanin Alexandre、Arai Satoru、Koyabu Daisuke、Douangboubpha Bounsavane、Csorba Gabor
    • Journal Title

      Vertebrate Zoology

      Volume: 73 Pages: 545~556

    • DOI

      10.3897/vz.73.e101487

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evolution, conservatism and overlooked homologies of the mammalian skull2023

    • Author(s)
      Koyabu Daisuke
    • Journal Title

      Philosophical Transactions of the Royal Society B: Biological Sciences

      Volume: 378 Pages: 20220081

    • DOI

      10.1098/rstb.2022.0081

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A deep learning approach for morphological feature extraction based on variational auto-encoder: an application to mandible shape2023

    • Author(s)
      Tsutsumi Masato、Saito Nen、Koyabu Daisuke、Furusawa Chikara
    • Journal Title

      npj Systems Biology and Applications

      Volume: 9 Pages: 30

    • DOI

      10.1038/s41540-023-00293-6

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The vocal apparatus: An understudied tool to reconstruct the evolutionary history of echolocation in bats?2023

    • Author(s)
      Brualla Nicolas L. M.、Wilson Laura A. B.、Doube Michael、Carter Richard T.、McElligott Alan G.、Koyabu Daisuke
    • Journal Title

      Journal of Mammalian Evolution

      Volume: 30 Pages: 79~94

    • DOI

      10.1007/s10914-022-09647-z

    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2024-12-25  

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