• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on spreading mechanisms of antibiotic-resistant bacteria in Thailand

Research Project

Project/Area Number 22406015
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Laboratory medicine
Research InstitutionOsaka Prefectural Institute of Public Health (2011-2012)
Osaka University (2010)

Principal Investigator

YAMAMOTO Yoshimasa  大阪府立公衆衛生研究所, 所長 (20010100)

Co-Investigator(Kenkyū-buntansha) HIRAI Itaru  大阪大学, 学内共同研究利用施設等, 教授 (00359994)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2011: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2010: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
KeywordsESBL産生腸内細菌 / タイ / 健常人 / ベトナム
Research Abstract

The prevalence of and risk factors associated with extended-spectrum 6-lactamase (ESBL)-producing bacteria have not been well studied in healthy individuals. The aim of this study was to determine this in healthy individuals. Stool samples and questionnaires obtained from participants from three provinces in Thailand were analyzed. The antimicrobial susceptibility of the isolates was assessed using phenotypic and genotypic methods. PCR analysis was performed to detect and group the blacTx-M genes. The prevalence of CTX-M-type ESBL-producing Enterobacteriaceae in the three provinces was as follows: 29.3% in Nan, 29.9% in Nakhon Si Thammarat, and 50.6% in Kanchanaburi. Of these samples, 7.4%, 0.2%, and 28.5% isolates belonged to the blacTx-M gene groups I, III, and IV, respectively. Escherichia coli was the predominant Enterobacteriaceae producing CTX-M-type ESBLs. No statistically significant association was observed between the presence of ESBL-producing bacteria and gender, age, education, food habits, or antibiotic usage. However, the provinces that had the highest prevalence of ESBL-producingEnterobacteriaceae also had the highest prevalence of use and purchase of antibiotics without a prescription. Thus, the study revealed that fecal carriage of ESBL-producing Enterobacteriaceae is very high in asymptomatic individuals in Thailand, with some variations between the provinces. The high prevalence may be linked to antibiotic abuse. Enterobacteriaceae also had the highest prevalence of use and purchase of antibiotics without a prescription. Thus, the study revealed that fecal carriage of ESBL-producing Enterobacteriaceae is very high in asymptomatic individuals in Thailand, with some variations between the provinces. The high prevalence may be linked to antibiotic abuse

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (13 results)

All 2013 2012 2011 2010 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (8 results)

  • [Journal Article] Prevalence of and risk factors associated with faecal carriageof CTX-MK (3-lactamase-producing Enterobacteriaceae in rural Thai communities2012

    • Author(s)
      Luvsansharav, U. O. , Hirai, I. Nakata, A. , Imura, K. , Yamauchi, K., Niki, M., Komalamisra, C. , Kusolsuk, T., Yamamoto, Y
    • Journal Title

      J. Antimicrobial Chemotherapy

      Volume: 67 Pages: 1769-1774

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Prevalence of and risk factors associated with faecal carriage of CTX-M beta-lactamase-producing Enterobacteriaceae in rural Thai communities2012

    • Author(s)
      Ulzii-Orshikh Luvsansharav
    • Journal Title

      Journal of Antimicrobial Chemotherapy

      Volume: 67 Issue: 7 Pages: 1769-1774

    • DOI

      10.1093/jac/dks118

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevalence of and risk factors associated with faecal carriage of CTX-M beta-lactamase-producing Enterobacteriaceae in rural Thai communities2012

    • Author(s)
      Ulzii-Orshikh Luvsansharav, 他
    • Journal Title

      Journal of Antimicrobial Chemotherapy

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of risk factors for a high prevalence of extended-spectrum /3 -lactamase-producing Enterobacteriaceae in asymptomatic individuals in rural Thailand2011

    • Author(s)
      Luvsansharav, U. O. , Hirai, I. , Niki, M. , Sasaki, T., Makimoto, K., Komalamisra, C., Maipanich, W., Kusolsuk, T., Sa-nguankiat, S., Pubampen, S. , Yamamoto, Y
    • Journal Title

      J. Med. Mi crobiol

      Volume: 60 Pages: 619-624

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of risk factors for a high prevalence of extended-spectrum β-lactamase-producing Enterobacteriaceae in asymptomatic individuals2011

    • Author(s)
      Ulzii-Orshikh Luvsansharav, 他
    • Journal Title

      Journal of Medical Microbiology

      Volume: 60(印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] A2-year trend of CTX-Mbeta-lactamase-producing Enterobacteriaceae in asmtomatic Thai people2013

    • Author(s)
      Ulzii-Orshikh Luvsansharav,他
    • Organizer
      日本細菌学会総会
    • Place of Presentation
      長崎市
    • Year and Date
      2013-03-28
    • Related Report
      2012 Final Research Report
  • [Presentation] 健常人由来CTX-M型ESBL産生菌株におけるESBL遺伝子の存在形態と地理的分布の関連性2013

    • Author(s)
      山内紘,他
    • Organizer
      日本細菌学会総会
    • Place of Presentation
      千葉市
    • Year and Date
      2013-03-18
    • Related Report
      2012 Final Research Report
  • [Presentation] A 2-year trend of CTX-M beta-lactamase-producing Enterobacteriaceae in asymptomatic Thai people2012

    • Author(s)
      Ulzii-Orshikh Luvsansharav, 他
    • Organizer
      日本細菌学会総会
    • Place of Presentation
      長崎市
    • Year and Date
      2012-03-28
    • Related Report
      2011 Annual Research Report
  • [Presentation] タイ地域住民のCTX-M型ESBL産生菌保菌率の検討2011

    • Author(s)
      山内紘,他
    • Organizer
      日本細菌学会関西支部総会
    • Place of Presentation
      大阪府堺市
    • Year and Date
      2011-11-19
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Analysis of risk factors for a high prevalence of extended-spectrum β-lactamase-producing Enterobacteriaceae in asymptomatic individuals in rural Thailand2011

    • Author(s)
      Ulzii-Orshikh Luvsansharav, 他
    • Organizer
      International Union of Microbiological Societies
    • Place of Presentation
      札幌市
    • Year and Date
      2011-09-09
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Analysis of risk factors for a high prevalence of extended-spectrum -lactamase-producing Enterobacteriaceae in asymptomatic individuals2010

    • Author(s)
      山本容正
    • Organizer
      2010 Interscience Conference on Antimicrobial Agents and Chemotherapy
    • Place of Presentation
      ボストン(USA)
    • Year and Date
      2010-09-13
    • Related Report
      2012 Final Research Report
  • [Presentation] Analysis of risk factors for a high prevalence of extended-spectrum β-lactamase-producing Enterobacteriaceae in asymptomatic individuals.2010

    • Author(s)
      山本容正
    • Organizer
      2010 Interscience Conference on Antimicrobial Agents and Chemotherapy
    • Place of Presentation
      ボストンコンベンションセンター(USA)
    • Year and Date
      2010-09-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] 健常人由来CTX-M型ESBL産生菌株におけるESBL遺伝子の存在形態と地理的分布の関連性

    • Author(s)
      山内 紘
    • Organizer
      日本細菌学会総会
    • Place of Presentation
      千葉市
    • Related Report
      2012 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi