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Creation of objective diagnostic and evaluation tools for chronic primary pain by miRNA and cfDNA in blood

Research Project

Project/Area Number 17K09049
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pain science
Research InstitutionKawasaki Medical School

Principal Investigator

nishie hiroyuki  川崎医科大学, 医学部, 講師 (20379788)

Co-Investigator(Kenkyū-buntansha) 永坂 岳司  川崎医科大学, 医学部, 准教授 (30452569)
中塚 秀輝  川崎医科大学, 医学部, 教授 (70263580)
Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords慢性痛 / miRNA / 侵害受容性痛 / voxel based morphometry / chronic primary pain / VBM / 特発性慢性痛 / 遺伝子解析 / 認知行動療法 / ゲノム / マイクロアレイ / 神経科学
Outline of Final Research Achievements

Chronic primary pain (CPP) is pain with no identifiable cause. To explore biomarkers for CPP, we investigated three groups: CPP, total hip arthropathy (THA) , and healthy subjects. We analyzed brain volume by voxel-based morphometry (VBM) using head MRI and micro RNA (miRNAs) from blood samples. Sample volume and resource issues prevented us from performing cell-free DNA analysis. The volume of the left parietal operculum was decreased before and after THA in VBM. We used RT-PCR to analyze for 11 miRNAs, some of which had low expression levels before THA surgery and increased postoperatively. This miRNA could be a biomarker for nociceptive pain because nociception causes the pain of hip osteoarthritis. No biomarkers for CPP have been noted in the analysis at this time. When diagnosing CPP, it is reasonable to look for biomarkers of nociceptive pain as a diagnosis of exclusion.

Academic Significance and Societal Importance of the Research Achievements

痛みの客観的評価は困難である。よって一次性慢性痛(CPP)と呼ばれる原因不明の痛みは、誰からも理解されず、患者には深刻な状態である。そこでCPPのバイオマーカーを探索した。比較対象として、明らかに侵害受容性痛が存在する人工股関節置換術(THA)を受ける患者を選択した。その結果、CPPは現段階の解析では明らかなバイオマーカーが指摘できないが、THA群についてはバイオマーカーとなりえるmiRNAが存在する可能性があった。CPPの診断のために、そのmiRNAを測定することで、侵害受容性痛を否定して除外診断ができる可能性がある。また、THAを受ける患者でも手術適応判断を正確にできる。

Report

(6 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (1 results)

All 2022

All Presentation (1 results)

  • [Presentation] 変形性股関節症患者でのVBMによる脳の形態の変化2022

    • Author(s)
      西江 宏行 , 作田 由香 , 中塚 秀輝
    • Organizer
      日本麻酔科学会第69回学術集会
    • Related Report
      2021 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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