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Exspiratory gas analysis in COPD

Research Project

Project/Area Number 16K01407
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical systems
Research InstitutionChiba University

Principal Investigator

Kawata Naoko  千葉大学, 医学部附属病院, 助教 (00400896)

Research Collaborator Sugiura Toshihiko  千葉大学, 呼吸器内科学, 助教
Matsuura Yukiko  千葉大学, 研究生
Tada Yuji  千葉大学, 呼吸器内科学, 特任教授
Abe Mitsuhiro  千葉大学, 呼吸器内科学, 特任助教
Ikari Jun  千葉大学, 呼吸器内科学, 助教
Suzuki Eiko  千葉大学, 呼吸器内科学, 医員
Sakurai Nozumu  かずさDNA研究所
Tatsumi Koichiro  千葉大学, 呼吸器内科学, 教授
Sakamoto Ikuko  千葉大学, 技官
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords呼気ガス / COPD / 呼気ガス分析
Outline of Final Research Achievements

We aimed to analyze the specific components of expiratory gas in patients with COPD. We performed expiratory gas analysis in 79 male patients with COPD. We examined the components using exhalation components analysis equipment. The subjects also underwent pulmonary function tests, and MDCT. We analyzed the relation between the components in gas analysis and the clinical parameters. There were significant negative correlations between the parameters of airflow limitation and the chemical components with mass number 51 and 59. The parameters of emphysematous changes significantly correlated with the chemical elements with mass number 59. Furthermore, the chemical elements with mass number 32-34 were greater in patients with exacerbations compared to patients without exacerbation. Expiratory gas analysis might be useful for diagnosing COPD and detecting clinical features in COPD patients.

Academic Significance and Societal Importance of the Research Achievements

COPD患者の呼気ガスを用いた今回の検討では、約200種類以上のガス成分(質量数)から特徴的な成分や組み合わせが検出される可能性があることを示した。日常臨床において問題とされる肺気腫の有無や急性増悪時の診断方法についても、特徴的な成分が検出される可能性がある。COPD の診断や病勢変化時において、呼吸機能検査や画像検査だけでなく、呼気ガス分析を組み合わせることで早期診断や臨床的に有用な情報が提供できると考える。さらに研究がすすみ、特徴的成分の同定または特徴的成分の組み合わせが検出できれば、集団検診や日常臨床において、呼吸機能検査に代わる簡易で複数回施行しやすい診断方法となる可能性がある。

Report

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

    (9 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Safety of diagnostic flexible bronchoscopy in patients with echocardiographic evidence of pulmonary hypertension2019

    • Author(s)
      Ishiwata Tsukasa、Abe Mitsuhiro、Kasai Hajime、Ikari Jun、Kawata Naoko、Terada Jiro、Sakao Seiichiro、Tada Yuji、Tanabe Nobuhiro、Tatsumi Koichiro
    • Journal Title

      Respiratory Investigation

      Volume: 57 Issue: 1 Pages: 73-78

    • DOI

      10.1016/j.resinv.2018.08.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficacy of End-Tidal Capnography Monitoring during Flexible Bronchoscopy in Nonintubated Patients under Sedation: A Randomized Controlled Study2018

    • Author(s)
      Ishiwata Tsukasa、Tsushima Kenji、Terada Jiro、Fujie Mai、Abe Mitsuhiro、Ikari Jun、Kawata Naoko、Tada Yuji、Tatsumi Koichiro
    • Journal Title

      Respiration

      Volume: 96 Issue: 4 Pages: 355-362

    • DOI

      10.1159/000489888

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of the clinical characteristics of everolimus-induced lung injury and determination of associated risk factors2018

    • Author(s)
      Abe Mitsuhiro、Tsushima Kenji、Ikari Jun、Kawata Naoko、Terada Jiro、Tanabe Nobuhiro、Tatsumi Koichiro
    • Journal Title

      Respiratory Medicine

      Volume: 134 Pages: 6-11

    • DOI

      10.1016/j.rmed.2017.11.009

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of factors during bronchoscopy that affect patient reluctance to undergo repeat examination: Questionnaire analysis after initial bronchoscopy2018

    • Author(s)
      Fujimoto Kazushi、Ishiwata Tsukasa、Kasai Hajime、Terada Jiro、Shionoya Yu、Ikari Jun、Kawata Naoko、Tada Yuji、Tsushima Kenji、Tatsumi Koichiro
    • Journal Title

      PLOS ONE

      Volume: 13 Issue: 12 Pages: 1-12

    • DOI

      10.1371/journal.pone.0208495

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Relationship of Bone Mineral Density in Men with Chronic Obstructive Pulmonary Disease Classified According to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) Combined Chronic Obstructive Pulmonary Disease (COPD) Assessment System2017

    • Author(s)
      Iesato Y, Kawata N, et al
    • Journal Title

      Internal Medicine

      Volume: 56 Issue: 14 Pages: 1781-1790

    • DOI

      10.2169/internalmedicine.56.6910

    • NAID

      130005773831

    • ISSN
      0918-2918, 1349-7235
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Longitudinal changes in structural abnormalities using MDCT in chronic obstructive pulmonary disease: Do the CT measurements of airway wall thickness and small pulmonary vessels change in parallel with emphysematous progression?2017

    • Author(s)
      Takayanagi S, Kawata N, Tada Y, Ikari J, Matsuura Y, Matsuoka S, Matsushita S, Yanagawa N, Kasahara Y, Tatsumi K.
    • Journal Title

      Int J COPD

      Volume: 12 Pages: 551-560

    • DOI

      10.2147/copd.s121405

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 高感度ガス分析装置を用いたCOPD患者における呼気ガス成分の検討2019

    • Author(s)
      川田奈緒子
    • Organizer
      第59回日本呼吸器学会学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Longitudinal changes in structural abnormalities using MDCT in chronic obstructive pulmonary disease2017

    • Author(s)
      Naoko Kawata
    • Organizer
      European Respiratory Society(国際学会)
    • Related Report
      2017 Research-status Report
  • [Presentation] Persistent daytime hypercapnia predicts poor prognosis in hypercapnic OSAS undergoing CPAP therapy2016

    • Author(s)
      Kawata N, Tedara J, Tatsumi K.
    • Organizer
      European Respiratory Society
    • Place of Presentation
      ロンドン、英国
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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

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