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Verification of the safety and effectiveness of a test for predicting malignant transformation of endometriosis

Research Project

Project/Area Number 20K09648
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 InstitutionNara Medical University

Principal Investigator

Shigetomi Hiroshi  奈良県立医科大学, 医学部, 研究員 (20433336)

Co-Investigator(Kenkyū-buntansha) 吉元 千陽  奈良県立医科大学, 医学部, 研究員 (00526725)
小林 浩  奈良県立医科大学, 医学部, 研究員 (40178330)
松原 翔  奈良県立医科大学, 医学部附属病院, 研究員 (20825236)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords子宮内膜症 / 近赤外線 / 卵巣癌 / 癌化 / 卵巣がん / チョコレート嚢胞
Outline of Research at the Start

子宮内膜症、特にチョコレート嚢胞の癌化過程には鉄による酸化ストレスが関与する。そこで、生体内鉄濃度を測定するため800~1000nmの近赤外光を照射し反射光である輝度を測定できる超音波診断を内蔵した一体型の経腟光学プローブを開発した。今回の目的は臨床応用を目指し、本経腟光学プローブを用いた安全性・有効性の実証試験を行う。

Outline of Final Research Achievements

The interactance method has made it possible to estimate iron and hemoglobin concentrations with higher sensitivity than the conventional reflectance method. A strong correlation was observed between the iron concentration measurement by the interactance method and the actual iron level in the cystic fluid (r=0.558, P<0.001) in the endometriosis group and the ovarian cancer group. The Phase 1 trial was completed on schedule and confirmed to be safe. Interaction method was used instead of reflected light for better accuracy. The near-infrared light irradiation device was built into the cover attached to the probe of transvaginal ultrasound. The iron concentration was successfully measured using the Unscrambler X hemoglobin concentration measurement analysis software by irradiating light from the tip of the probe and collecting information on the PC via the detector.

Academic Significance and Societal Importance of the Research Achievements

超音波診断装置内蔵一体型の経腟光学プローブを設計試作することにより、どの機器にでも装着することができ、鉄濃度測定のために新規の超音波診断装置を購入しなくても測定可能である。本プローブを使用することにより隆起性病変が出現する前に癌化の過程を歩んでいる内膜症患者を予測することも可能となる。なお、内膜症からのがん化は比較的若年で発生するため、早期発見が急務である。経腟光学プローブは2015年に特許を取得しており、海外への展開も視野に入れることができると考えている。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (11 results)

All 2023 2022 2020

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (1 results)

  • [Journal Article] Similarities in Pathogenetic Mechanisms Underlying the Bidirectional Relationship between Endometriosis and Pelvic Inflammatory Disease2023

    • Author(s)
      Kobayashi Hiroshi
    • Journal Title

      Diagnostics

      Volume: 13 Issue: 5 Pages: 868-868

    • DOI

      10.3390/diagnostics13050868

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Endometrial Inflammation and Impaired Spontaneous Decidualization: Insights into the Pathogenesis of Adenomyosis2023

    • Author(s)
      Kobayashi Hiroshi
    • Journal Title

      International Journal of Environmental Research and Public Health

      Volume: 20 Issue: 4 Pages: 3762-3762

    • DOI

      10.3390/ijerph20043762

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Endometriotic Neoplasm Algorithm for Risk Assessment (e-NARA) Index Sheds Light on the Discrimination of Endometriosis-Associated Ovarian Cancer from Ovarian Endometrioma.2022

    • Author(s)
      Kawahara N, Kawaguchi R, Maehana T, Yamanaka S, Yamada Y, Kobayashi H, Kimura F.
    • Journal Title

      Biomedicines.

      Volume: 10(11) Issue: 11 Pages: 2683-2683

    • DOI

      10.3390/biomedicines10112683

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Understanding the molecular mechanisms of macrophage polarization and metabolic reprogramming in endometriosis: A narrative review2022

    • Author(s)
      Kobayashi Hiroshi、Imanaka Shogo
    • Journal Title

      Reproductive Medicine and Biology

      Volume: 21 Issue: 1

    • DOI

      10.1002/rmb2.12488

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Comparison of Three Predictive Indexes to Discriminate Malignant Ovarian Tumors from Benign Ovarian Endometrioma: The Characteristics and Efficacy2022

    • Author(s)
      Yamanaka Shoichiro、Kawahara Naoki、Kawaguchi Ryuji、Waki Keita、Maehana Tomoka、Fukui Yosuke、Miyake Ryuta、Yamada Yuki、Kobayashi Hiroshi、Kimura Fuminori
    • Journal Title

      Diagnostics

      Volume: 12 Issue: 5 Pages: 1212-1212

    • DOI

      10.3390/diagnostics12051212

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Macrophages Protect Endometriotic Cells Against Oxidative Damage Through a Cross-Talk Mechanism2022

    • Author(s)
      Ogawa Kenji、Liu Tingting、Kawahara Naoki、Kobayashi Hiroshi
    • Journal Title

      Reproductive Sciences

      Volume: - Issue: 8 Pages: 2165-2178

    • DOI

      10.1007/s43032-022-00890-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Revisiting therapeutic strategies for ovarian cancer by focusing on redox homeostasis (Review)2022

    • Author(s)
      Kobayashi Hiroshi、Imanaka Shogo、Shigetomi Hiroshi
    • Journal Title

      Oncology Letters

      Volume: 23 Issue: 3 Pages: 80-80

    • DOI

      10.3892/ol.2022.13200

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reprogramming of glucose metabolism of cumulus cells and oocytes and its therapeutic significance2022

    • Author(s)
      Imanaka Shogo、Shigetomi Hiroshi、Kobayashi Hiroshi
    • Journal Title

      Reproductive Sciences

      Volume: 29 Issue: 3 Pages: 653-667

    • DOI

      10.1007/s43032-021-00505-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tissue factor pathway inhibitor 2 : A potential diagnostic marker for discriminating benign from malignant ovarian tumors2022

    • Author(s)
      Kobayashi H, Yamada Y, Kawaguchi R, Ootake N, Myoba S, Kimura F.
    • Journal Title

      J Obstet Gynaecol Res.

      Volume: 48 Issue: 9 Pages: 2442-2451

    • DOI

      10.1111/jog.15345

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tissue Factor Pathway Inhibitor 2: A Novel Biomarker for Predicting Asymptomatic Venous Thromboembolism in Patients with Epithelial Ovarian Cancer2022

    • Author(s)
      Yamanaka Shoichiro、Miyake Ryuta、Yamada Yuki、Kawaguchi Ryuji、Ootake Norihisa、Myoba Shohei、Kobayashi Hiroshi
    • Journal Title

      Gynecologic and Obstetric Investigation

      Volume: 87 Issue: 2 Pages: 133-140

    • DOI

      10.1159/000524804

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] 卵巣子宮内膜症癌化の早期発見を目指した超音波機器の開発2020

    • Author(s)
      新納恵美子、松原 翔、吉元千陽、小林 浩
    • Organizer
      第41回日本エンドメトリオーシス学会学術講演会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-12-25  

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