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Analysis of bacterial risk factors for the development of Guillain-Barré Syndrome among Campylobacter jejuni strains isolated from animal and food sources

Research Project

Project/Area Number 16K08022
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Veterinary medical science
Research InstitutionUniversity of Miyazaki

Principal Investigator

Misawa Naoaki  宮崎大学, 産業動物防疫リサーチセンター, 教授 (20229678)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsカンピロバクター / ギランバレー症候群 / 食中毒 / リポオリゴサッカライド / シアル酸 / ガングリオシド / 分子疫学 / 細菌 / 人獣共通感染症 / 食品衛生
Outline of Final Research Achievements

Guillain-Barré Syndrome (GBS), a neurologic disease characterized by acute paralysis, is frequently preceded by Campylobacter jejuni infection. Among the diverse lipooligosaccharide (LOS) molecules of C. jejuni strains, some structures closely resemble human gangliosides, suggesting that molecular mimicry could trigger the neuronal injury observed in GBS. The present study was performed to investigate prevalence of C. jejuni strains isolated from animals with risk factors for development of GBS in Japan. A total of 496 C. jejuni strains from animals and human enteritis were analyzed for serotyping, LOS typing, MLST typing, and expression of sialic acid and GM1 epitope on the LOS. Our study concluded that only small numbers of C. jejuni isolates from animal origins have been proved for the presence of ganglioside-like epitopes with sialic acid, suggesting that C. jejuni strains showing bacterial risk factors for development of GBS exist among animal isolates.

Academic Significance and Societal Importance of the Research Achievements

日本国内の細菌性食中毒の約60%はカンピロバクターによるもので、発症件数はこの数年間第1位となっている。GBSの発症頻度は人口10万人当たり1.2名程度で、国内では年間2000人程度の発症が認められている。GBSの約30%はカンピロバクターの合併症として起こることから、本研究で食中毒の感染源となるカンピロバクターの中にどの程度GBS発症に関連するリスク因子を保有しているのか、また自然界における分布を明らかにしたことは、GBS発症リスク因子を保有する菌株を迅速に検出できる診断法に繋げる事が可能となり、GBS発症を未然に防ぐことができる成果として公衆衛生上の意義は高い。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (5 results)

All 2018 2017

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] Effect of morphological changes in feather follicles of chicken carcasses after defeathering and chilling on the degree of skin contamination by <i>Campylobacter</i> species2018

    • Author(s)
      Latt, K. M., Urata, A., Shinki, T., Sasaki, S., Taniguchi, T., Misawa, N.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 80 Issue: 1 Pages: 49-54

    • DOI

      10.1292/jvms.17-0534

    • NAID

      130006300903

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Muddy Puddles - The microbiology of puddles located outside tertiary university teaching hospitals.2018

    • Author(s)
      2.Furukawa, M., McCaughan, J., Stirling J, Cherie M. B., Bell, J., Goldsmith, C. E., Reid, A., Misawa, N., Moore, J. E.
    • Journal Title

      Lett. Appl. Microbiol.

      Volume: 27 Issue: 4 Pages: 284-292

    • DOI

      10.1111/lam.12856

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] カンピロバクター食中毒のリスク低減に立ちはだかる課題2018

    • Author(s)
      三澤 尚明
    • Organizer
      食の安全と安心フォーラム第15回
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] カンピロバクターのリスクプロファイルについて2018

    • Author(s)
      三澤 尚明
    • Organizer
      平成30年度全国食肉衛生検査所協議会近畿ブロック会議および技術研修会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] カンピロバクター食中毒とその制御2017

    • Author(s)
      三澤尚明
    • Organizer
      第160 回日本獣医学会学術集会
    • Related Report
      2017 Research-status Report
    • Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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