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Escherichia coli biofilms in urinary tract infections -the development of novel methods for identifying antibiofilm agents-

Research Project

Project/Area Number 20791110
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Urology
Research InstitutionOkayama University

Principal Investigator

WADA Koichiro  Okayama University, 岡山大学病院, 医員 (20423337)

Research Collaborator KARIYAMA Reiko  岡山大学, 大学院・医歯薬学総合研究科, 助教 (40112148)
KUMON Hiromi  岡山大学, 大学院・医歯薬学総合研究科, 教授 (30144760)
Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords大腸菌 / バイオフィルム / 尿路感染症 / フルオロキノロン / 耐性メカニズム / 実験モデル系 / キノロン耐性
Research Abstract

This study was aimed at establishing new strategies for prevention and therapy of Escherichia coli biofilms in urinary tract infections. On the emergence of E. coli strains with increasing resistance to fluoroquinolones, the relationship between fluoroquinolone insusceptibility and biofilm-forming capabilities has not been clarified, but its multiple resistance mechanism was suggested. By a novel method to screen antibiofilm agents, some compounds from urine metabolites of cranberry were found, but further studies were needed to evaluate them in vivo models.

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (13 results)

All 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (10 results)

  • [Journal Article] Experimental and clinical studies on fluoroquinolone-insusceptible Escherichia coli isolated from patients with urinary tract infections from 1994 to 20072009

    • Author(s)
      Wada K, Kariyama R, Mitsuhata R, Uehara S, Watanabe T, Monden K, Kumon H
    • Journal Title

      Acta Medica Okayama 63(5)

      Pages: 263-272

    • NAID

      120002313204

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] 尿路由来メタロ- β-ラクタマーゼ産生緑膿菌のバイオフィルム形成能および分子疫学的検討2009

    • Author(s)
      石井亜矢乃、狩山玲子、光畑律子、佐古真一、和田耕一郎、上原慎也、渡辺豊彦、門田晃一、公文裕巳
    • Journal Title

      Bacterial Adherence & Biofilm 22

      Pages: 59-64

    • Related Report
      2009 Final Research Report
  • [Journal Article] Experimental and clinical studies on fluoroquinolone-insusceptible Escherichia coliisolated from patients with urinary tract infections from 1994 to 20072009

    • Author(s)
      Koichiro Wada
    • Journal Title

      Acta Iedica Okayama 63

      Pages: 263272-263272

    • NAID

      120002313204

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 「岡山大学病院泌尿器科における尿路感染症分離菌の変遷および薬剤感受性について-2004~2008年-2009

    • Author(s)
      山本満寿美
    • Organizer
      第57回日本化学療法学会西日本支部総会
    • Place of Presentation
      名古屋国際会議場(名古屋市)
    • Year and Date
      2009-11-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] Pharmacokinetics and pharmacodynamics of biapenem in patients with pyelonephritis2009

    • Author(s)
      Wada Koichiro
    • Organizer
      26th International Congress of Chemotherapy and Infection
    • Place of Presentation
      Toronto, Canada
    • Year and Date
      2009-06-20
    • Related Report
      2009 Final Research Report
  • [Presentation] Pharmacokinelics and pharmacodynamics of biapenem in patients with pyelonephritis2009

    • Author(s)
      Koichiro Wada
    • Organizer
      26th International Congress of Chemotherapy and Infection
    • Place of Presentation
      Sheraton Centre Toronto Hotel (Toronto. Canada)
    • Year and Date
      2009-06-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] 尿路感染症由来緑膿菌のバイオフィルム形成能と臨床的背景の関連性の検討2008

    • Author(s)
      佐古真一
    • Organizer
      第56回日本化学療法学会西日本支部総会
    • Place of Presentation
      広島国際会議場(広島市)
    • Year and Date
      2008-12-07
    • Related Report
      2009 Final Research Report
  • [Presentation] 尿路感染症由来緑膿菌のバイオフィルム形成能と臨床的背景の関連性の検討2008

    • Author(s)
      佐古真一
    • Organizer
      第56回日本化学療法学会西日本支部総会
    • Place of Presentation
      広島市
    • Year and Date
      2008-12-07
    • Related Report
      2008 Annual Research Report
  • [Presentation] 腎盂腎炎患者におけるビアペネムの体内動態に関する研究2008

    • Author(s)
      和田耕一郎
    • Organizer
      第56回日本化学療法学会西日本支部総会
    • Place of Presentation
      広島国際会議場(広島市)
    • Year and Date
      2008-12-06
    • Related Report
      2009 Final Research Report
  • [Presentation] 腎盂腎炎患者におけるビアペネムの体内動態に関する研究2008

    • Author(s)
      和田耕一郎
    • Organizer
      第56回日本化学療法学会西日本支部総会
    • Place of Presentation
      広島市
    • Year and Date
      2008-12-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] クランベリーポリフェノール尿中代謝物の大腸菌性バイオフィルム形成抑制効果2008

    • Author(s)
      佐々木典子
    • Organizer
      日本農芸化学会中四国支部第22回講演会
    • Place of Presentation
      鳥取大学農学部(鳥取市)
    • Year and Date
      2008-09-13
    • Related Report
      2009 Final Research Report
  • [Presentation] 尿路由来メタロ- β-ラクタマーゼ産生緑膿菌のバイオフィルム形成能および分子疫学的検討2008

    • Author(s)
      石井亜矢乃
    • Organizer
      第22回Bacterial Adherence, Biofilm学術集会
    • Place of Presentation
      兵庫県立夢舞台国際会議場(淡路市)
    • Year and Date
      2008-07-04
    • Related Report
      2009 Final Research Report
  • [Presentation] メタローβ-ラクタマーゼ産生緑膿菌のバイオフィルム形成能および分子疫学的検討2008

    • Author(s)
      山本満寿美
    • Organizer
      第56回日本化学療法学会総会
    • Place of Presentation
      岡山市
    • Year and Date
      2008-06-06
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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