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Novel rapid quantification method of viable bacteria in a septic blood sample can produce an effective biomarker for monitoring patient care

Research Project

Project/Area Number 15K08642
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory medicine
Research InstitutionUniversity of Toyama

Principal Investigator

NIIMI HIDEKI  富山大学, 大学院医学薬学研究部(医学), 准教授 (50401865)

Co-Investigator(Kenkyū-buntansha) 北島 勲  富山大学, 大学院医学薬学研究部(医学), 教授 (50214797)
野手 良剛  富山大学, 附属病院, 主事 (60377364)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords敗血症 / 感染症 / 遺伝子検査 / バイオマーカー / 迅速検査 / 起炎菌の定量 / 起炎菌の同定 / Viability PCR
Outline of Final Research Achievements

Severe sepsis is a common and frequently fetal condition, but current biomarkers do not always reflect the severity of sepsis at a particular point in time. Here we show the development of a novel rapid identification and quantification method of unknown bacteria in a clinical sample using the original technology. We identified and quantified bacteria in septic blood samples, and the quantification results were correlated with the severity of microbial infection . We subsequently examined the time-dependent changes of blood bacterial concentration, and found that the time-dependent changes of blood bacterial concentration were not correlated with those of BT, WBC, CRP, IL-6, and Presepsin. In particular, 24 to 72 hours after antibiotic treatments, blood bacterial concentrations were dramatically decreased. In conclusion, blood bacterial concentration would be useful as a novel biomarker not only to estimate the severity of microbial infection but to monitor the therapeutic effect.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (37 results)

All 2018 2017 2016 2015 Other

All Journal Article (20 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 7 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Remarks (1 results) Patent(Industrial Property Rights) (5 results)

  • [Journal Article] Sludge reflects intra-amniotic inflammation with or without microorganisms.2018

    • Author(s)
      Yoneda N, Yoneda S, Niimi H, Ito M, Fukuta K, Ueno T, Ito M, Shiozaki A, Kigawa M, Kitajima I, Saito S.
    • Journal Title

      Am J Reprod Immunol.

      Volume: 79(2) Issue: 2 Pages: 1-8

    • DOI

      10.1111/aji.12807

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tm mapping法による細菌性眼内炎起炎菌の迅速同定2018

    • Author(s)
      宮腰晃央,仁井見英樹,上野智浩,柳沢秀一郎,北島勲,林篤志
    • Journal Title

      日本眼科学会雑誌

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Melting Temperature (Tm) mapping法:新たな敗血症起炎菌迅速同定法2018

    • Author(s)
      仁井見 英樹
    • Journal Title

      臨床病理

      Volume: 66(3) Pages: 267-274

    • Related Report
      2017 Annual Research Report
  • [Journal Article] 17OHP-C in patients with spontaneous preterm labor and intact membranes: is there an effect according to the presence of intra-amniotic inflammation?2018

    • Author(s)
      Yoneda S, Yoneda N, Shiozaki A, Yoshino O, Ueno T, Niimi H, Kitajima I, Tamura K, Kawasaki Y, Makimoto M, Yoshida T, Saito S.
    • Journal Title

      Am J Reprod Immunol.

      Volume: 79 Issue: 3 Pages: 1-11

    • DOI

      10.1111/aji.12867

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 2016年度学会賞受賞報告(学術賞)Melting Temperature (Tm) mapping法:検体採取後3時間以内での敗血症起炎菌迅速同定法2017

    • Author(s)
      仁井見 英樹
    • Journal Title

      臨床化学

      Volume: 46(1) Pages: 47-54

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Recurrent deep vein thrombosis with a protein S Tokushima mutation2017

    • Author(s)
      Torai R.、Makino T.、Mizawa M.、Hayashi M.、Furukawa F.、Niimi H.、Shimizu T.
    • Journal Title

      British Journal of Dermatology

      Volume: 178 Issue: 1

    • DOI

      10.1111/bjd.15700

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 敗血症起炎菌のあらたな迅速同定法2017

    • Author(s)
      仁井見 英樹
    • Journal Title

      医学のあゆみ

      Volume: 262(7,8) Pages: 728-729

    • Related Report
      2017 Annual Research Report
  • [Journal Article] 敗血症起炎菌迅速同定システム Tm mapping法2017

    • Author(s)
      仁井見 英樹
    • Journal Title

      臨床と微生物

      Volume: 44(5) Pages: 063-071

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Spondylodiscitis due to Parvimonas micra diagnosed by the melting temperature mapping method.2017

    • Author(s)
      Higashi Y, Nakamura S, Niimi H, Ueno T, Matsumoto K, Kawago K, Sakamaki I, Kitajima I, Yamamoto Y
    • Journal Title

      BMC infectious diseases

      Volume: 17(1) Issue: 1 Pages: 584-584

    • DOI

      10.1186/s12879-017-2690-4

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 最前線の研究現場から 検査は医療を変えるー革新的な敗血症検査システムを開発2017

    • Author(s)
      仁井見英樹
    • Journal Title

      実業之富山

      Volume: 72(1) Pages: 50-53

    • Related Report
      2016 Research-status Report
  • [Journal Article] Melting Temperature (Tm) mapping法:検体採取後3時間以内での敗血症起炎菌迅速同定法2017

    • Author(s)
      仁井見英樹
    • Journal Title

      臨床化学

      Volume: 46(1) Pages: 47-54

    • Related Report
      2016 Research-status Report
  • [Journal Article] 先天性アンチトロンビン欠損症による脳静脈洞血栓症を併発した多発性硬化症の1例2016

    • Author(s)
      金谷雄平、高松和弘、下江豊、仁井見英樹、北島勲、栗山勝
    • Journal Title

      臨床神経学

      Volume: 56(4) Pages: 248-254

    • NAID

      130005149736

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] 敗血症の起炎菌の迅速検出・同定2016

    • Author(s)
      仁井見英樹
    • Journal Title

      検査と技術

      Volume: 44(5) Pages: 366-369

    • Related Report
      2016 Research-status Report
  • [Journal Article] 敗血症起炎菌の新たな迅速同定法2016

    • Author(s)
      仁井見英樹
    • Journal Title

      バイオサイエンスとインダストリー

      Volume: 74(5) Pages: 422-424

    • NAID

      40020960361

    • Related Report
      2016 Research-status Report
  • [Journal Article] Antibiotic Therapy Increases the Risk of Preterm Birth in Preterm Labor without Intra-Amniotic Microbes, but may Prolong the Gestation Period in Preterm Labor with Microbes, Evaluated by Rapid and High-Sensitive PCR System2016

    • Author(s)
      Yoneda S, Shiozaki A, Yoneda N, Ito M, Shima T, Fukuda K, Ueno T, Niimi H, Kitajima I, Kigawa M, Saito S
    • Journal Title

      American Journal of Reproductive Immunology

      Volume: 75(4) Issue: 4 Pages: 440-50

    • DOI

      10.1111/aji.12484

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eukaryote-Made Thermostable DNA Polymerase Enables Rapid PCR-Based Detection of Mycoplasma, Ureaplasma and Other Bacteria in the Amniotic Fluid of Preterm Labor Cases.2015

    • Author(s)
      Ueno T, Niimi H, Yoneda N, Yoneda S, Mori M, Tabata T, Minami H, Saito S, Kitajima I
    • Journal Title

      PLoS One.

      Volume: 10(6) Issue: 6 Pages: 1-17

    • DOI

      10.1371/journal.pone.0129032

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Melting temperature mapping method: A novel method for identification of unknown pathogenic microorganisms within three hours of sample of collection.2015

    • Author(s)
      Niimi H, Ueno T, Hayashi S, Abe A, Tsurue T, Mori M, Tabata H, Minami H, Goto M, Akiyama M, Yamamoto Y, Saito S, Kitajima I
    • Journal Title

      Scientific Reports.

      Volume: 5 Issue: 1 Pages: 12543-12543

    • DOI

      10.1038/srep12543

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polymicrobial Amniotic Fluid Infection with Mycoplasma/Ureaplasma and Other Bacteria Induces Severe Intra-Amniotic Inflammation Associated with Poor Perinatal Prognosis in Preterm Labor2015

    • Author(s)
      Yoneda N, Yoneda S, Niimi H, Ueno T, Hayashi S, Ito M, Shiozaki A, Urushiyama D, Hata K, Suda W, Hattori M, Kigawa M, Kitajima I, Saito S.
    • Journal Title

      American Journal of Reproductive Immunology

      Volume: 75(2) Issue: 2 Pages: 112-25

    • DOI

      10.1111/aji.12456

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 血液検体からの起炎菌の直接検出・同定方法の開発2015

    • Author(s)
      仁井見 英樹
    • Journal Title

      化学療法の領域 増刊号

      Volume: 31(S-1) Pages: 211-219

    • Related Report
      2015 Research-status Report
  • [Journal Article] ジャーナルトピックス CHIPS法(遺伝子変異スクリーニング法)は遺伝子検査の簡便化・低コスト化に役立つ2015

    • Author(s)
      仁井見 英樹
    • Journal Title

      臨床化学

      Volume: Vol.44(No.4) Pages: 326-326

    • Related Report
      2015 Research-status Report
  • [Presentation] 感染症における新たな迅速検査技術の開発2018

    • Author(s)
      仁井見 英樹
    • Organizer
      ファーマ・メディカルエンジニア養成プログラムと生命融合科学教育部の共催シンポジウム,富山
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Tm Mapping - A Novel Testing Method for Rapid Bacterial Identification without Blood Culture2017

    • Author(s)
      Hideki Niimi
    • Organizer
      Singapore International Infectious Disease Conference 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 菌数を敗血症の新規バイオマーカーとする迅速検査システムの開発2017

    • Author(s)
      仁井見 英樹
    • Organizer
      第57回日本臨床化学会年次学術集会(札幌)
    • Related Report
      2017 Annual Research Report
  • [Presentation] 菌数を敗血症の新規バイオマーカーとする迅速検査システムの開発2017

    • Author(s)
      仁井見 英樹
    • Organizer
      第87回日本感染症学会 西日本地方会学術集会(長崎)
    • Related Report
      2017 Annual Research Report
  • [Presentation] 菌数を敗血症の新規バイオマーカーとする起炎菌迅速同定・定量検査システムの開発2017

    • Author(s)
      仁井見 英樹
    • Organizer
      第66回日本感染症学会東日本地方会学術集会(東京)
    • Related Report
      2017 Annual Research Report
  • [Presentation] 菌数を敗血症の新規バイオマーカーとする迅速な遺伝子検査システムの開発2017

    • Author(s)
      仁井見 英樹
    • Organizer
      第64回日本臨床検査医学会学術集会(京都)
    • Related Report
      2017 Annual Research Report
  • [Presentation] Tm mapping法概要および複数機関の試験結果2017

    • Author(s)
      仁井見英樹
    • Organizer
      第28回日本臨床微生物学会総会・学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 敗血症起炎菌迅速同定法(Tm mapping法)の開発2016

    • Author(s)
      仁井見英樹
    • Organizer
      第56回日本臨床化学会年次学術集会
    • Place of Presentation
      熊本
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Melting Temperature (Tm) mapping法:検体採取後3時間以内での敗血症起炎菌迅速同定法2015

    • Author(s)
      仁井見 英樹
    • Organizer
      第58回日本感染症学会中日本地方会学術集会
    • Place of Presentation
      奈良
    • Year and Date
      2015-10-16
    • Related Report
      2015 Research-status Report
  • [Presentation] Tm mapping 法:血液検体からの起炎菌の直接検出・同定方法の開発2015

    • Author(s)
      仁井見 英樹
    • Organizer
      第27回臨床微生物迅速診断研究会総会
    • Place of Presentation
      金沢
    • Year and Date
      2015-07-04
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Tm mapping法(感染症起炎菌迅速同定法)の院内試験運用結果と正確性の評価2015

    • Author(s)
      仁井見 英樹
    • Organizer
      第89回日本感染症学会学術講演会
    • Place of Presentation
      京都
    • Year and Date
      2015-04-16
    • Related Report
      2015 Research-status Report
  • [Remarks] 富山大学研究者総覧

    • URL

      http://evaweb.u-toyama.ac.jp/html/405_ja.html

    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] 不完全なマッチプローブを用いたカンジダ菌の迅速同定法2018

    • Inventor(s)
      東祥嗣,仁井見英樹,北島勲
    • Industrial Property Rights Holder
      東祥嗣,仁井見英樹,北島勲
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-061350
    • Filing Date
      2018
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 血液検体の前処理方法2017

    • Inventor(s)
      仁井見英樹,杉江和茂,北島勲,上野智浩
    • Industrial Property Rights Holder
      仁井見英樹,杉江和茂,北島勲,上野智浩
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-219547
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 改良Tmマッピング法2017

    • Inventor(s)
      仁井見英樹,大槻晋也,北島勲
    • Industrial Property Rights Holder
      仁井見英樹,大槻晋也,北島勲
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-244461
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 検体中の細菌数の定量方法2017

    • Inventor(s)
      仁井見英樹,北島勲,宮腰晃央,東祥嗣
    • Industrial Property Rights Holder
      仁井見英樹,北島勲,宮腰晃央,東祥嗣
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-246333
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 検体中の細菌数の定量方法2017

    • Inventor(s)
      仁井見英樹,北島勲,宮腰晃央,東祥嗣
    • Industrial Property Rights Holder
      仁井見英樹,北島勲,宮腰晃央,東祥嗣
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-246724
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report

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Published: 2015-04-16   Modified: 2019-03-29  

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