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Contamination of foods and sources of the emerging diarrheagenic Fec ericbia mallet foreshadowspandemics

Research Project

Project/Area Number 18602001
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 食の安全
Research InstitutionOsaka City University

Principal Investigator

NISHIKAWA Yoshikazu  Osaka City University, Graduate School of Human Life Science, Professor (60183539)

Co-Investigator(Kenkyū-buntansha) OGASAWARA Jun  Osaka City Institute of Public Health and Environmental Sciences, Department of Microbiology, Senior Researcher (00270760)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,980,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywordsdarrheagenic / Escherichia coli / real-time PCR / multiplex / food / screening / epidemiology / contamination
Research Abstract

Diarrheagenic Escherichia coli (DEC) comprise a variety of pathotypes: enteropathogenic E. coli (EPEC); shigatoxin-producing E. coil (STEC); enterotoxigenic E. coli (ETEC); enteroinvasive E. coli (EIEC); enteroaggregative E. call (EAggEC); and diffusely adhering E. coil (DAEC). However, the source and routes of infection have not been clarified because these organisms are scarcely detected among numerous coliform bacteria. To exhaustively detect DEC in food, we have developed multiplex real-time PCR assays against enterovirulent genes (eae, stx1, stx2, elt, est, virB, aggR, astA and afaB). Primers and TaqMan probes were designed to amplify and quantify the genes in duplex or triplex reactions under the same PCR cycling conditions. Specificity was confirmed using 96 DEC strains, 2 strains of Vibrio cholerae El Tor Ogawa, and Shigella dysenteriae serotype 1. The fluorescence threshold cycle and DNA concentrations correlated with decision coefficients of more than 0.99. Subsequently, ground meat samples and enrichment broths were spiked with DEC. Detection limits varied from 3.6×10^2 to 6.0×10^3 CFU/ml, depending on the target genes. All meat samples spiked with a variety of DEC (more than 10 CFU/10g) were found to be positive by screening the enrichment broth using multiplex real-time PCR. As a preliminary test, 148 food samples were exhaustively assayed by multiplex real-time PCR; 41 samples (28%) were positive for DEC pathotypes. The present multiplex real-time PCR system allows the efficient and simultaneous determination of various DEC pathotypes in food.

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (34 results)

All 2008 2007 2006

All Journal Article (24 results) (of which Peer Reviewed: 11 results) Presentation (4 results) Book (4 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Prevalence and virulence gene profiles of Shiga toxin-producing Escbericbia coli and enteropathogenic Escbericbia coli from diarrhceie and healthy lambs in India2008

    • Author(s)
      Bhat, M.A., Nishikawa, Y:, and Wani, S.A.
    • Journal Title

      Small Ruminant Res. 75

      Pages: 65-70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Prevalence and virulence gene profiles of Shiga toxin-producing Escherichia coli and enteropathogenic Escherichia coil from diarrhoeic and healthy lambs in India2008

    • Author(s)
      Bhat, M. A, Nishikawa, Y, Wani, S. A
    • Journal Title

      Small Ruminant Res 75

      Pages: 65-70

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Enhancement of Shiga toxin production in enterohemorrhagic Escherichia coli serotype O157:H7 by DNase colicins2007

    • Author(s)
      Toshima, H., Yoshimura, A., Arikawa., K., Hidaka, A., Ogasawara, J., Hale, A., Masaki, H., and Nishikawa, Y.
    • Journal Title

      Appl.Environ.Microbiol. 73

      Pages: 7582-7588

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Association of IL-8-Inducing strains of diffusely adherent Escherichia coli with sporadic diarrheal patients less than 5 years of age2007

    • Author(s)
      Meraz, I.M., Arikawa, K., Nakamura, H., Ogasawara, J., Hase, A., the Surveillance Team, and Nishikawa, Y.
    • Journal Title

      Braz.J.Infect.Dis. 11

      Pages: 44-49

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Variants of eae and stx genes of atypical enteropathogenic Escherlchie coli and non-O157 Shiga toxin-producing Escherichia coli from calves.2007

    • Author(s)
      Wani, S.A., Hussain, I., Nabi, A., Fayaz, I., and Nishikawa, Y.
    • Journal Title

      Lett.Appl.Microbiol. 45

      Pages: 610-615

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Prevalence of enteric bacteria that inhibit growth of enterohaemorrhagic Escherichia coli 0157 in humans2007

    • Author(s)
      Toshima, H., Y., Hachio, M., Ikemoto, Y., Ogasawara, J., Hase, A., Takahashi, K., Masaki, N., and Nishikawa, Y.
    • Journal Title

      Epidemiol. Infect. 135

      Pages: 110-117

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Enhancement of Shiga toxin production in enterohemorrhagic Escherichia coil serotype 0157:H7 by DNase colicins2007

    • Author(s)
      Toshima, H, Yoshimura, A, Arikawa, K, Hidaka, A, Ogasawara, J, Hase, A, Masaki, H, Nishikawa, Y
    • Journal Title

      Appl. Environ. Microbiol 73

      Pages: 7582-7588

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Association of IL-8-Inducing strains of diffusely adherent Escherichia coli with sporadic diarrheal patients less than 5 years of age2007

    • Author(s)
      Meraz, I. M, Arikawa, K, Nakamura, H, Ogasawara, J, Hase, A, the Surveillance, Team, Nishikawa, Y
    • Journal Title

      Braz. J. Infect. Dis. 11

      Pages: 44-49

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Variants of eae and stx genes of atypical enteropathogenic Escherichia coli and non-O157 Shiga toxin-producing Escherichia coli from calves2007

    • Author(s)
      Wani, S. A, Hussain, I, Nabi, A, Fayaz, I, Nishikawa, Y
    • Journal Title

      Lett. Appl. Microbiol. 45

      Pages: 610-615

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Prevalence of enteric bacteria that inhibit growth of enterohaemorrhagic Escherichia coil ○ 157 in humans2007

    • Author(s)
      Toshima, H., Y. Hachio, M., Ikemoto, Y. Ogasawara, J. Hase, A. Takahashi, K. Masaki, H. and Nishikawa, Y
    • Journal Title

      Epidemiol. Infect. 135

      Pages: 110-117

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Association of IL-8-Inducing strains of diffusely adherent Eseheriehia coli with sporadic diarrheal patients less than 5 years of age2007

    • Author(s)
      Meraz, I. M, Arikawa, K, Nakamura, H., Ogasawara, J., Hase, A., the Surveillance Team, and Nishfkawa, Y.
    • Journal Title

      Braz. J. Infect. Dis. 11

      Pages: 44-49

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of Shiga toxin production in enterohemorrhagic Escherichia coli semtype O157:H7 by DNase cohcins2007

    • Author(s)
      Toshima, H., Yoshimura, A, Arikawa, K, Hidaka, A, Ogasawara, J., Hase, A., Masaki, H., and Nishikawa, Y.
    • Journal Title

      Appl. Environ. Microbiol. 73

      Pages: 7582-7588

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variants of eae and stx genes of atypical enteropathogenic Escherichia coli and non-O157 Shiga toxin-producing Escheriehia coli from calves.2007

    • Author(s)
      Wani, S. A., Hussain, I., Nabi, A., Fayaz, I., and Nishikawa, Y.
    • Journal Title

      Lett. Appl. Microbiol. 45

      Pages: 610-615

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevalence of enteric bacteria that inhibit growth of enterohaemorrhagic Escherichia coli 0157 in humans2007

    • Author(s)
      Toshima, H., Y., Hachio, M., Ikemoto, Y., Ogasawara, J., Hase, A., Takahashi, K., Masaki, H., Nishikawa, Y.
    • Journal Title

      Epidemiology and Infection 135・1

      Pages: 110-117

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Epithelial cells secreteinterleukin-8 in response to adhesion and invasion of diffusely adhering Escherichia coli lacking Afa/Dr genes2006

    • Author(s)
      Meraz, I.M., Arikawa, K., Ogasawara, J., Hase, A., and Nishikawa, Y.
    • Journal Title

      Microbiol.Imnunol. 50

      Pages: 159-169

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Investigation of diarrhoeic faecal samples for enterotoxigenic,Shiga toxin-producing and typical or atypical enteropathogenic Escherichia coli in Kashmir,India2006

    • Author(s)
      Wani, S.A., Nabi, A., Fayaz, I., Ahmad, I., Nishikawa, Y., Qureshi, K., Khan, M.A., and Chowdhary, J.
    • Journal Title

      FEMS Microbiol.Lett. 261

      Pages: 238-244

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Shiga toxin-producing Escherichia coli and enteropathogenic Escherichia coli in healthy goats in India:occurrence and virulence properties2006

    • Author(s)
      Wani, S.A., Samanta, I., Munshi, Z.H., Bhat, M.A., and Nishikawa, Y.
    • Journal Title

      J.App1.Microbiol. 261

      Pages: 108-113

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Epithelial cells secrete interleukin-8 in response to adhesion and invasion of diffusely adhering Escherichia coli lacking Afa/Dr genes2006

    • Author(s)
      Meraz, I. M, Arikawa, K, Ogasawara, J, Hase, A, Nishikawa, Y
    • Journal Title

      Microbiol. Immunol 50

      Pages: 159-169

    • NAID

      10017327442

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Investigation of diarrhoeic faecal samples for enterotoxigenic, Shiga toxin-producing and typical or atypical enteropathogenic Escherichia coli in Kashmir, India2006

    • Author(s)
      Wani, S. A, Nabi, A, Fayaz, I, Ahmad, I. Nishikawa, Y, Qureshi, K, Khan, M. A, Chowdhary, J
    • Journal Title

      FEMS Microbiol. Lett. 261

      Pages: 238-244

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Shiga toxin-producing Escherichia coli and enteropathogenic Escherichia coli in healthy goats in India: occurrence and virulence properties2006

    • Author(s)
      Wani, S. A, Samanta, I, Munshi, Z. H, Bhat, M. A, Nishikawa, Y
    • Journal Title

      J. Appl. Microbiol. 100

      Pages: 108-113

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Epithelial cells secrete interleukin-8 in response to adhesion and invasion of diffusely adhering Escherichia coli lacking Afa/Dr genes2006

    • Author(s)
      Meraz, I.M., Arikawa, K., Ogasawara, J., Hase, A., Nishikawa, Y.
    • Journal Title

      Microbiology and Immunology 50・3

      Pages: 159-169

    • NAID

      10017327442

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Investigation of diarrhoeic faecal samples for enterotoxigenic Shiga toxin-producing and typical or atypical enteropathogenic Escherichia coli in Kashmir, India2006

    • Author(s)
      Wani, S.A., Nabi, A., Fayaz, I., Ahmad, I., Nishikawa, Y., Qureshi, K., Khan, M.A., Chowdhary, J.
    • Journal Title

      FEMS Microbiology Letters 261・2

      Pages: 238-244

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Shiga toxin-producing Escherichia coli and enteropathogenic Escherichia coli in healthy goats in India : occurrence and virulence properties2006

    • Author(s)
      Wani, S.A., Samanta, I., Munshi, Z.H., Bhat, M.A., Nishikawa, Y.
    • Journal Title

      Journal of Applied Microbiology 100・1

      Pages: 108-113

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Molecular typing to trace Listeria monocytogenes isolated from cold-smoked fish to a contamination source in a processing plant2006

    • Author(s)
      Nakamura, H., Tokuda, Y., Sono, A., Koyama, T., Ogasawara, J., Hase, A., Haruki, K., Nishikawa, Y.
    • Journal Title

      Journal of Food Protection 69・4

      Pages: 835-841

    • Related Report
      2006 Annual Research Report
  • [Presentation] リアルタイムPCRを用いた食品中の下痢原性大腸菌の網羅的検出法2007

    • Author(s)
      日高 あゆみ、法橋 朋子、小笠原 準、長谷 篤、高鳥 浩介、西川 禎一
    • Organizer
      第28回日本食品微生物学会学術総会
    • Place of Presentation
      東京
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Multiplex real-time PCR for exhaustive detection of diarrheagenic Escherichia coil in foods2007

    • Author(s)
      Hidaka, A, Hokyo, T, Ogasawara, J, Hase, A, Takatori, K, Nishikawa, Y
    • Organizer
      The 28th Annual Meeting of Japanese Society of Food Microbiology
    • Place of Presentation
      Tokyo
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] リアルタイムPCRによる食品中の下痢原性大腸菌(EHEC, EPEC, ETEC)同時検出法2006

    • Author(s)
      日高 あゆみ、法橋 朋子、小笠原 準、長谷 篤、西川 禎一
    • Organizer
      第27回日本食品微生物学会学術総会
    • Place of Presentation
      大阪
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Simultaneous detection of diarrheagenic Escherichia coli(EHEC, EPEC,ETEC)in foods by real-time PCR2006

    • Author(s)
      Hidaka, A, Hokyo, T, Ogasawara, J, Hase, A, Nishikawa, Y
    • Organizer
      The 27th Annual Meeting of Japanese Society of Food Microbiology
    • Place of Presentation
      Osaka
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Book] 「食生活をおびやかす食中毒と感染症」 山口英昌編著『食環境科学入門 食の安全を環境問題の視点から』2006

    • Author(s)
      西川 禎一
    • Publisher
      ミネルバ書房
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Book] 「EASTl遺伝子astA保有大腸菌の下痢原性に注意」「分散接着性大腸菌検査時のひと工夫」;渡辺治雄編著『食中毒検査・診療のコツと落とし穴』2006

    • Author(s)
      西川 禎一
    • Publisher
      中山書店
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Book] 「食生活をおびやかす食中毒と感染症」食環境科学入門 食の安全を環境問題の視点から(山口英昌編著)2006

    • Author(s)
      西川禎一
    • Publisher
      ミネルバ書房
    • Related Report
      2006 Annual Research Report
  • [Book] 「EAST1遺伝子astA保有大腸菌の下痢原性に注意」「分散接着性大腸菌検査時のひと工夫」;食中毒検査・診療のコツと落とし穴(渡辺治雄編著)2006

    • Author(s)
      西川禎一
    • Publisher
      中山書店
    • Related Report
      2006 Annual Research Report
  • [Patent(Industrial Property Rights)] 下痢原性大腸菌検出方法2007

    • Inventor(s)
      西川 禎一
    • Industrial Property Rights Holder
      公立大学法人大阪市立大学、株式会社KALS、株式会社三共刃型工業
    • Filing Date
      2007-05-16
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 下痢原性大腸菌検出方法2007

    • Inventor(s)
      西川 禎一
    • Industrial Property Rights Holder
      公立大学法人大阪市立大学、株式会社KALS、株式会社三共刄型工業
    • Filing Date
      2007-05-16
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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