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Establishment of evidence of effectiveness of amoxicillin in the subjects at risk for infective endocarditis

Research Project

Project/Area Number 25463177
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Orthodontics/Pediatric dentistry
Research InstitutionOsaka University

Principal Investigator

NEMOTO Hirotoshi  大阪大学, 歯学研究科, 招へい教員 (80527226)

Co-Investigator(Kenkyū-buntansha) NAKANO Michiyo  岡山大学, 医歯(薬)学総合研究科, 教授 (30359848)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords感染性心内膜炎 / アモキシシリン / 唾液 / 抗生物質 / 耐性菌 / 母子伝播 / 心疾患 / 術前投与 / 先天性心疾患 / ペニシリン結合タンパク質 / 口腔レンサ球菌 / クリンダマイシン
Outline of Final Research Achievements

Analyses of saliva specimens collected from healthy mothers and their children revealed that the prevalence rate of amoxicillin-resistant oral streptococci was approximately 5%, while that of clindamycin-resistant oral streptococci was approximately 30%. Other findings revealed resistance to other antibiotics by these strains as well as their possible transmission from mother to child. Thereafter, analyses of obtained oral specimens were performed to investigate the presence of amoxicillin-resistant strains in subjects at risk for infective endocarditis. However, we were unable to collect an adequate number of samples in order to analyze with statistical significance and consider that a large-scale study is necessary to perform this research.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (3 results)

All 2015 2014 2013

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] Isolation of amoxicillin-resistant oral streptococci from children and their mothers.2015

    • Author(s)
      Nemoto H, Nomura R, Nakano K.
    • Journal Title

      Pediatric Dental Journal

      Volume: 25 Issue: 1 Pages: 8-13

    • DOI

      10.1016/j.pdj.2014.12.003

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Transmission of clindamycin-resistant oral streptococci between mother and their child.2014

    • Author(s)
      Nemoto H, Nomura R, Nakano K.
    • Organizer
      The 9 th PDAA (Biennial Conference of Pediatric Dentistry Association of Asia) Meeting
    • Place of Presentation
      Singapore
    • Year and Date
      2014-08-23
    • Related Report
      2014 Research-status Report
  • [Presentation] Distribution of amoxicillin-resistant streptococci in mothers and their children.2013

    • Author(s)
      Nemoto H, Nomura R, Nakano K.
    • Organizer
      2nd IADR-APR (International Association of Dental Research-Asia Pacific Region) Meeting
    • Place of Presentation
      Bangkok, Thailand
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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