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LEUKOCYTE MIGRATION ASSAY PREDICTS PRETERM BIRTH

Research Project

Project/Area Number 16K20207
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Obstetrics and gynecology
Research InstitutionJuntendo University

Principal Investigator

Makino Shintaro  順天堂大学, 医学部, 先任准教授 (70570894)

Research Collaborator Takeda Jun  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords早産 / 胎盤 / 卵膜 / 白血球遊走能 / 白血球組織侵入アッセイ / 末梢白血球活動性 / 産科学
Outline of Final Research Achievements

Total leukocyte (including granulocytes, NK cells, T cells, B cellsand monocytes) migration increased as labor progressed (spontaneous TLvs TNLp<0.008). More leukocytes migrated at PTL than at PTNL withintact membranes (p<0.0001). Receiver operating characteristic curveparameters indicated the cut-off point for delivery within 7 days to be37,082 leukocytes with sensitivity 78.1%, specificity 88.9%, positive pre-dictive value 91.4%, negative predictive value 72.7%, and area under thecurve 0.83.The LMA has the potential to become a much needed point-of-care clinical test to predict delivery within 7 days.

Academic Significance and Societal Importance of the Research Achievements

分娩に至る機序が妊娠32週以前と正期産とで異なる可能性があるが、少なくとも妊娠後期から分娩においてはchemoattractantに対する白血球の反応性は徐々に高くなっていることが予想された。これらの反応性を評価することで分娩誘発が成功するかどうかや急産の予測、また予定帝王切開前の陣発の予測などの臨床応用ができる可能性が示唆された。今後は、chemoattractantのなかで何に対して白血球が遊走しているのかについて研究を継続し、臨床応用の可能性について引き続き探求していく予定である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (2 results)

All 2017

All Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Leukocyte migration during pregnancy2017

    • Author(s)
      高水藍 竹田純 牧野真太郎 板倉敦夫 竹田省
    • Organizer
      The First Workshop of PREBIC-Australasian Branch
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 妊娠期間における遊走白血球数の変化2017

    • Author(s)
      高水藍 竹田純 牧野真太郎 板倉敦夫 竹田省
    • Organizer
      第25回日本胎盤学会学術集会 第35回日本絨毛性疾患研究会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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