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The elucidation of the molecular mechanism of fertility improvement by improving the nutritional environment as preconception care

Research Project

Project/Area Number 21K09498
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionFukushima Medical University

Principal Investigator

太田 邦明  福島県立医科大学, 公私立大学の部局等, 博士研究員 (90424142)

Co-Investigator(Kenkyū-buntansha) 高橋 俊文  福島県立医科大学, 公私立大学の部局等, 教授 (20302292)
Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsプレコンセプションケア / ビタミンD / 葉酸 / ホモシステイン / 卵巣機能 / 不妊症 / 細胞性免疫 / 不育症 / 栄養
Outline of Research at the Start

メチオニン代謝異常による高HCY状態に着目し、子宮内膜における高HCY状態の改善を標的とした不妊・不育症の治療法に関する研究はこれまで行われていない。本研究は、栄養環境の状態と妊孕性向上の分子メカニズムに関する解析が中心となる。また高HCY血症の是正が新しい不妊症・不育症治療となる可能性から、血中HCY値をバイオマーカーとした不妊症・不育症治療の個別化医療につながる可能性がある。

Outline of Annual Research Achievements

2029人のプレコンセプション期女性の血中ビタミンD濃度とTh1/Th2比および卵巣機
能の解析では、対象女性(94%)のほとんどで、ビタミンD値が十分でない(<30ng/mL)ことが示され、そのうちの57%がビタミンD欠乏症(<20 ng/mL)であった。さらに卵巣機能ならびにTh1/Th2比と血中ビタミンD濃度との関連性は認められなかった。また、ビタミンDは紫外線により合成されるため季節変動性を認めることから、各季節ごとのビタミンDを測定したところ、測定地(緯度36度)では冬が有意に低いことが判明し、卵巣機能やTh1/Th2比の関連性は認めなかった。本研究は日本人若年女性のビタミンD濃度を測定した研究としてはもっとも大規模であり、そこから若い女性の栄養不足が判明し、今後ビタミンDなどのプレコンセプションケアの認知・実践が期待される結果となることが評価され、論文が受理された(Ota K et al. Nutrients. 2023 Dec 9;15(24):5059.)。また、葉酸研究も大幅に進めることができた。1030人の不妊症と診断を受けた女性を対象にした研究では、葉酸のモニタリングマーカーとしてホモシステインを用いて、全例に施行したところ、
体外受精治療をした場合に、高ホモシステイン血症が低受精率と関連することが判明した。また高ホモシステイン血症(8.0nmol/mL以上)に対して葉酸サプリメントを介入したところ血中ホモシステイン値の改善率を約25%認め(p=0.003)、葉酸サプリメント介入において流産予防効果を認めることができた(p<0.05)。本研究も論文として受理された(Ogawa S, Ota K et al. Nutrients 2023, 15(17), 3730)。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

研究代表者の異動により、当初の計画とは異なっているがプレコンセプションケアとしての研究目的は申請時と同様であり、なおかつ本研究によりハイインパクトの論文に2本が受理された。また、現在は、男性因子の方への葉酸サプリメント介入が体外受精の成績に影響を及ぼすのか?をクリニカルクエッションとして、前向きコホート研究として新規アプローチも行っており、現在のところ、目標症例数に達したため、臨床成績の結果待ちであり本年度内の投稿から受理まで十分予測される。

Strategy for Future Research Activity

男性因子の方への葉酸サプリメント介入が体外受精の成績に影響を及ぼすのか?をクリニカルクエッションとして、前向きコホート研究として新規アプローチも行っており、現在のところ、目標症例数に達したため、臨床成績の結果が本年度前半には解析が可能となるため、本年度後半での論文作成ならびに投稿で、今年度中の論文受理を目指すこととしている。本科研費で際立った成果として三本のハイインパクトジャーナルのアクセプトは本研究の成果として予想以上と考えている。

Report

(3 results)
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021

All Journal Article (23 results) (of which Peer Reviewed: 21 results,  Open Access: 18 results) Presentation (5 results) (of which Invited: 5 results) Book (1 results)

  • [Journal Article] Diagnosis and resolution of an enigmatic calcified pelvic mass post‐hysterectomy: A case report2024

    • Author(s)
      Ota Kuniaki、Asai Satoshi、Takagi Shun、Kikuchi Mahomi、Miyazaki Kotaro、Saiki Naohiko、Tajima Hiroto、Nagase Masanori、Asada Hironori、Ota Yoshiaki、Takahashi Toshifumi
    • Journal Title

      International Journal of Gynecology &amp; Obstetrics

      Volume: 165 Issue: 3 Pages: 1297-1299

    • DOI

      10.1002/ijgo.15426

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Seasonal Serum 25(OH) Vitamin D Level and Reproductive or Immune Markers in Reproductive-Aged Women with Infertility: A Cross-Sectional Observational Study in East Japan2023

    • Author(s)
      Ota Kuniaki、Mitsui Junichiro、Katsumata Shoko、Takayanagi Yuko、Nako Yurie、Tajima Makiko、Komiya Akira、Takahashi Toshifumi、Kawai Kiyotaka
    • Journal Title

      Nutrients

      Volume: 15 Issue: 24 Pages: 5059-5059

    • DOI

      10.3390/nu15245059

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of Homocysteine as a Preconceptional Screening Factor for In Vitro Fertilization and Prevention of Miscarriage with Folic Acid Supplementation Following Frozen-Thawed Embryo Transfer: A Hospital-Based Retrospective Cohort Study2023

    • Author(s)
      Ogawa Seiji、Ota Kuniaki、Takahashi Toshifumi、Yoshida Hiroaki
    • Journal Title

      Nutrients

      Volume: 15 Issue: 17 Pages: 3730-3730

    • DOI

      10.3390/nu15173730

    • Related Report
      2023 Research-status Report
  • [Journal Article] Successful Pregnancy and Delivery at Term Following Intravenous Immunoglobulin Therapy with Heparin for Unexplained Recurrent Pregnancy Loss Suspected of Immunological Abnormalities: A Case Report and Brief Literature Review2023

    • Author(s)
      Mitsui Junichiro、Ota Kuniaki、Takayanagi Yuko、Nako Yurie、Tajima Makiko、Fukui Atsushi、Kawai Kiyotaka
    • Journal Title

      Journal of Clinical Medicine

      Volume: 12 Issue: 4 Pages: 1250-1250

    • DOI

      10.3390/jcm12041250

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Predictive Factors for Empty Follicle Syndrome in Infertile Patients Undergoing Assisted Reproductive Technology Treatment: A Retrospective Cohort Study and Brief Literature Review2023

    • Author(s)
      Mitsui Junichiro、Ota Kuniaki、Yamashita Hidetoshi、Sujino Toshio、Hiraoka Kenichiro、Katsumata Shoko、Takayanagi Yuko、Nako Yurie、Tajima Makiko、Ohuchi Kumi、Hayashi Masaru、Ishikawa Tomonori、Kawai Kiyotaka
    • Journal Title

      Clinical and Experimental Obstetrics &amp; Gynecology

      Volume: 50 Issue: 4 Pages: 80-80

    • DOI

      10.31083/j.ceog5004080

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Trocar-site hernia following laparoscopic salpingo-oophorectomy in a middle-aged Japanese woman: an initial case report after 40?years of experience at a single center and a brief literature review2022

    • Author(s)
      Ota Kuniaki、Katagiri Yukiko、Katakura Masafumi、Mukai Takafumi、Nakaoka Kentaro、Maemura Toshimitsu、Takahashi Toshifumi、Morita Mineto
    • Journal Title

      BMC Women's Health

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12905-021-01528-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ageing impairs restoration of endometrial blood flow impedance after laparoscopic myomectomy in infertile women with uterine fibroids2022

    • Author(s)
      Ota Kuniaki、Sato Kenji、Shiraishi Satoru、Takahashi Toshifumi
    • Journal Title

      Journal of Obstetrics and Gynaecology

      Volume: 42 Issue: 5 Pages: 1211-1216

    • DOI

      10.1080/01443615.2021.1945011

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A practical survey of fertility‐preservation treatments in the startup phase in Japan2022

    • Author(s)
      Takae Seido、Kato Keiichi、Watanabe Chie、Nara Kazuko、Koizumi Tomoe、Kawai Kiyotaka、Ota Kuniaki、Yumura Yasushi、Yabuuchi Akiko、Kuwahara Akira、Furui Tatsuro、Takai Yasushi、Irahara Minoru、Suzuki Nao
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 48 Issue: 5 Pages: 1061-1075

    • DOI

      10.1111/jog.15199

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Porous diaphragm syndrome presenting as hemothorax secondary to hemoperitoneum after laparoscopic myomectomy: A case report and literature review2022

    • Author(s)
      Ota Kuniaki、Katagiri Yukiko、Katakura Masafumi、Maemura Toshimitsu、Takahashi Toshifumi、Morita Mineto
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 48 Issue: 4 Pages: 1039-1045

    • DOI

      10.1111/jog.15175

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Robotic-assisted total hysterectomy with low pneumoperitoneal pressure (6 mmHg) and use of surgical plume evacuator system to minimize potential airborne particles according to the joint statement on minimally invasive gynecologic surgery during the COVID-19 pandemic: A case report from Japan2022

    • Author(s)
      Takahashi Toshifumi、Ota Yoshiaki、Ota Kuniaki、Suzuki Soichiro、Sano Rikiya、Shiota Mitsuru
    • Journal Title

      Gynecology and Minimally Invasive Therapy

      Volume: 11 Issue: 2 Pages: 127-127

    • DOI

      10.4103/gmit.gmit_131_20

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Successful pregnancy and delivery after a vitrified-warmed embryo transfer in a woman with Kallmann syndrome: A case report and literature review2022

    • Author(s)
      Shiraiwa Aya、Takahashi Toshifumi、Okoshi Chihiro、Wada Marina、Ota Kuniaki、Suganuma Ryota、Jimbo Masatoshi、Soeda Shu、Watanabe Takafumi、Yoshida-Komiya Hiromi、Fujimori Keiya
    • Journal Title

      FUKUSHIMA JOURNAL OF MEDICAL SCIENCE

      Volume: 68 Issue: 1 Pages: 49-55

    • DOI

      10.5387/fms.2021-09

    • ISSN
      0016-2590, 2185-4610
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Successful laparoscopic management of acute abdominal pain due to spontaneous rupture of subserosal vessels overlying a uterine fibroid: a case report and surgical video2022

    • Author(s)
      Maemura Toshimitsu、Fujita Shigeru、Morita Noriko、Furusawa Keiichi、Mitamura Kayo、Nishizawa Kenji、Ota Kuniaki
    • Journal Title

      BMC Women's Health

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12905-022-01970-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Nationwide Survey Aimed at Establishing an Appropriate Long-Term Storage and Management System for Fertility Preserving Specimens in Japan2022

    • Author(s)
      Maezawa Tadashi、Takae Seido、Takeuchi Hiroki、Takenaka Motoki、Ota Kuniaki、Horie Akihito、Suzuki Tatsuya、Takai Yasushi、Kimura Fuminori、Furui Tatsuro、Ikeda Tomoaki、Suzuki Nao
    • Journal Title

      Journal of Adolescent and Young Adult Oncology

      Volume: NA

    • DOI

      10.1089/jayao.2021.0209

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] <scp>TRACP</scp> ‐ <scp>5b</scp> / <scp>BAP</scp> Score After 3?Months of Treatment With Combined <scp>SERM</scp> / <scp>E2</scp> Therapy Can Predict Changes in Lumbar Spine Bone Mineral Density After 1?Year of Treatment in Early Postmenopausal Osteopenia2022

    • Author(s)
      Ota Ikuko、Ota Yoshiaki、Ota Kuniaki、Eda Homare、Ohta Hiroaki
    • Journal Title

      JBMR Plus

      Volume: 6 Issue: 11

    • DOI

      10.1002/jbm4.10690

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Laparoscopic Adenomyomectomy under Real-Time Intraoperative Ultrasound Elastography Guidance: A Case Series and Feasibility Study2022

    • Author(s)
      Ota Yoshiaki、Ota Kuniaki、Takahashi Toshifumi、Morimoto Yumiko、Suzuki Soichiro、Sano Rikiya、Shiota Mitsuru
    • Journal Title

      Journal of Clinical Medicine

      Volume: 11 Issue: 22 Pages: 6707-6707

    • DOI

      10.3390/jcm11226707

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case of discrepancy between three ERA tests in a woman with repeated implantation failure complicated by chronic endometritis2022

    • Author(s)
      Ota Kuniaki、Takahashi Toshifumi、Mitsui Junichiro、Kuroda Kishio、Hiraoka Kenichiro、Kawai Kiyotaka
    • Journal Title

      BMC Pregnancy and Childbirth

      Volume: 22 Issue: 1

    • DOI

      10.1186/s12884-022-05241-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between temporal changes of endometrial blood flow impedance during natural and hormone replacement cycles and prediction of pregnancy during vitrified‐warmed embryo transfer2021

    • Author(s)
      Ota Kuniaki、Shiraishi Satoru、Takahashi Toshifumi
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 47 Issue: 3 Pages: 1052-1063

    • DOI

      10.1111/jog.14637

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Hetha Yoga on endocrine functions and assisted reproductive technology outcomes in women with infertility: a retrospective cohort study.2021

    • Author(s)
      Ota Kuniaki, Takahashi Toshifumi, Katagiri Mikiko, Mizunuma Hideki, Hiroaki Yoshida
    • Journal Title

      J Reprod Med.

      Volume: 66(4) Pages: 101-106

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] A suturing method without exposure of barbs on the wound surface using a unidirectional barbed monofilament absorbable suture (STRATAFIX<sup>?</sup>) in laparoscopic myomectomy: A feasibility study2021

    • Author(s)
      Takahashi Toshifumi、Ota Yoshiaki、Ota Kuniaki、Suzuki Soichiro、Sano Rikiya、Shiota Mitsuru
    • Journal Title

      Gynecology and Minimally Invasive Therapy

      Volume: 10 Issue: 2 Pages: 104-104

    • DOI

      10.4103/gmit.gmit_105_20

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reproductive medical providers’ behaviors, considerations, and plans for fertility treatments during the COVID‐19 pandemic in Japan: A nationwide web‐based survey2021

    • Author(s)
      Ota Kuniaki、Tsutsumi Osamu、Mitani Tasuku、Morimoto Yoshiharu、Tanaka Atsushi、Osuga Yutaka、Takahashi Toshifumi、Hosoi Yoshihiko
    • Journal Title

      Reproductive Medicine and Biology

      Volume: 20 Issue: 2 Pages: 123-132

    • DOI

      10.1002/rmb2.12372

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pregnancy outcomes in children, adolescents, and young adults that survived cancer: A nationwide survey in Japan2021

    • Author(s)
      Yasuoka Toshiaki、Iwama Noriyuki、Ota Kuniaki、Harada Miyuki、Hasegawa Junichi、Yaegashi Nobuo、Sugiyama Takashi、Suzuki Nao、Osuga Yutaka
    • Journal Title

      Journal of Obstetrics and Gynaecology Research

      Volume: 47 Issue: 9 Pages: 3352-3361

    • DOI

      10.1111/jog.14909

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ageing impairs restoration of endometrial blood flow impedance after laparoscopic myomectomy in infertile women with uterine fibroids2021

    • Author(s)
      Ota Kuniaki、Sato Kenji、Shiraishi Satoru、Takahashi Toshifumi
    • Journal Title

      Journal of Obstetrics and Gynaecology

      Volume: 23 Pages: 1-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【生殖医療の基礎知識アップデート 患者説明に役立つ最新エビデンス・最新データ】プレコンセプションケア サプリメント摂取と妊孕性――葉酸,ビタミンDの有用性2021

    • Author(s)
      43.太田邦明、福田雄介、片桐由起子、高橋俊文、森田峰人
    • Journal Title

      臨婦産

      Volume: 75 Pages: 1259-1266

    • Related Report
      2021 Research-status Report
  • [Presentation] PCOSのヘルスケア管理2021

    • Author(s)
      太田 邦明
    • Organizer
      第73回日本産科婦人科学会学術講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 子宮性不妊に対する、正しい『生殖外科』的介入を考える2021

    • Author(s)
      太田 邦明
    • Organizer
      第34回日本内視鏡外科学会総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] ニュートリエピジェネティクス解析による不育症の新規発症メカニズムの開発2021

    • Author(s)
      太田 邦明
    • Organizer
      第39回日本受精着床学会学術講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 筋層縫合を評価する~外科医ができる研究を求めて~2021

    • Author(s)
      太田 邦明
    • Organizer
      第61回日本産科婦人科内視鏡学会学術講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 不妊にならない街はあるのか?~新しい不妊治療のあり方を考える~2021

    • Author(s)
      太田 邦明
    • Organizer
      九州生殖医療Webセミナ
    • Related Report
      2021 Research-status Report
    • Invited
  • [Book] みえる!わかる!女性内分泌2022

    • Author(s)
      岩瀬 明、平池 修、太田 邦明
    • Total Pages
      260
    • Publisher
      メジカルビュー社
    • ISBN
      9784758321273
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2024-12-25  

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