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2018 Fiscal Year Annual Research Report

Development of practical application of combination therapy against piroplasmosis in animals

Research Project

Project/Area Number 18H02337
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

五十嵐 郁男  帯広畜産大学, 原虫病研究センター, 教授 (80159582)

Co-Investigator(Kenkyū-buntansha) 横山 直明  帯広畜産大学, 原虫病研究センター, 教授 (80301802)
Project Period (FY) 2018-04-01 – 2021-03-31
Keywordsピロプラズマ病 / 新規治療 / コンビネーション
Outline of Annual Research Achievements

1)トポイソメラーゼ阻害剤のnitidine塩化物(NC)とおよびカンプトテシン(Cpt)のバベシアとタイレリアに対する増殖抑制効果を検討した。その結果、(NC)とおよびカンプトテシン(Cpt)のB. bovis, B. bigemina, B. divergens, B. caballi, とT. equi に対するして優れた増殖抑制効果を示した。 また、B. microti感染マウスにNC を投与すると、ジミナゼン・アセチューレートと同様の治療効果が認めら、明らかな副作用も認められなかったた。
2)フルオロキノロン抗生物質の in vitroのBabesia divergensに増殖抑制とB. microti 感染マウスの治療効果を検討した。その結果、Enrofloxacin、トロバフロキサシン、およびエノキサシンは、B. divergensに対して最も効果的な増殖抑制効果を示した。また、エノキサシンあるいはトロバフロキサシンとジミナゼン・アセチュレートとの組合わせにより増殖抑制効果が増大した。更に、B. microtiによって感染したマウスにおいて、エノキサシンとジミナゼン・アセチュレートの組み合わせにより、その療法効果が増強された。
3)チモキノン(TQ)のピロプラズマ原虫に対する増殖抑制効果を検討した。その結果、牛バベシア原虫B. bovis, B. bigemina, B. divergensおよび馬ピロプラズマ原虫T. equi, B. caballi,に対して優れた増殖抑制効果を示した。また、TQとジミナゼン・アセチュレートとの組合わせにより増殖抑制効果が増大した。更に、B. microti感染マウスに、70mg/kgの経口投与および50mg/kgの腹腔内投与により堅調な治療効果が認められ、ピロプラズマ病の治療薬の一つとして期待される。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

犬バベシアの培養系の原虫増殖が不安定なため、薬剤コンビネーションの増殖効果の検討が遅れた。

Strategy for Future Research Activity

2019年度中に、犬を用いた実験を終了すると共に、家畜の治療実験の準備を進める。

  • Research Products

    (22 results)

All 2019 2018 Other

All Int'l Joint Research (5 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Int'l Joint Research] IPB University/Balai Veteriner Subang (DIC Subang)(インドネシア)

    • Country Name
      INDONESIA
    • Counterpart Institution
      IPB University/Balai Veteriner Subang (DIC Subang)
  • [Int'l Joint Research] 東北医科薬科大学(日本)

    • Country Name
      JAPAN
    • Counterpart Institution
      東北医科薬科大学
  • [Int'l Joint Research] Mongolian Veterinary In sistute/National University of Mongolia,/Khovd University(モンゴル)

    • Country Name
      MONGOLIA
    • Counterpart Institution
      Mongolian Veterinary In sistute/National University of Mongolia,/Khovd University
  • [Int'l Joint Research] Mansoura University/Damanhour University(エジプト)

    • Country Name
      EGYPT
    • Counterpart Institution
      Mansoura University/Damanhour University
  • [Int'l Joint Research] Makerere University(ウガンダ)

    • Country Name
      UGANDA
    • Counterpart Institution
      Makerere University
  • [Journal Article] Evaluation of the in vitro and in vivo inhibitory effect of thymoquinone on piroplasm parasites2019

    • Author(s)
      El-Sayed Shimaa Abd El-Salam、Rizk Mohamed Abdo、Yokoyama Naoaki、Igarashi Ikuo
    • Journal Title

      Parasites & Vectors

      Volume: 12 Pages: 37-46

    • DOI

      10.1186/s13071-019-3296-z

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of unstable resistance to diminazene aceturate in Babesia bovis2019

    • Author(s)
      Tuvshintulga Bumduuren、Sivakumar Thillaiampalam、Yokoyama Naoaki、Igarashi Ikuo
    • Journal Title

      International Journal for Parasitology: Drugs and Drug Resistance

      Volume: 9 Pages: 87~92

    • DOI

      10.1016/j.ijpddr.2019.02.001

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Flavonoids isolated from the flowers of Pulsatilla flavescens and their anti-piroplasm activity2019

    • Author(s)
      Ganchimeg Dorj、Batbold Badarch、Murata Toshihiro、Davaapurev Bekh-Ochir、Munkhjargal Tserendorj、Tuvshintulga Bumduuren、Suganuma Keisuke、Igarashi Ikuo、Buyankhishig Buyanmandakh、Sasaki Kenroh、Batsuren Dulamjav、Batkhuu Javzan
    • Journal Title

      Journal of Natural Medicines

      Volume: 07 Pages: 1-8

    • DOI

      10.1007/s11418-019-01294-8

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The effects of nitidine chloride and camptothecin on the growth of Babesia and Theileria parasites2018

    • Author(s)
      Tayebwa Dickson Stuart、Tuvshintulga Bumduuren、Guswanto Azirwan、Nugraha Arifin Budiman、Batiha Gaber El-Saber、Gantuya Sambuu、Rizk Mohamed Abdo、Vudriko Patrick、Sivakumar Thillaiampalam、Yokoyama Naoaki、Igarashi Ikuo
    • Journal Title

      Ticks and Tick-borne Diseases

      Volume: 9 Pages: 1192~1201

    • DOI

      10.1016/j.ttbdis.2018.04.019

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Inhibitory effects of fluoroquinolone antibiotics on <em>Babesia divergens</em> and <em>Babesia microti</em>, blood parasites of veterinary and zoonotic importance2018

    • Author(s)
      Rizk Mohamed Abdo、AbouLaila Mahmoud、El-Sayed Shimaa Abd、Guswanto Azirwan、Yokoyama Naoaki、Igarashi Ikuo
    • Journal Title

      Infection and Drug Resistance

      Volume: Volume 11 Pages: 1605~1615

    • DOI

      10.2147/IDR.S159519

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] The in vitro and in vivo inhibitory effect of Moringa olivera leaves on Babesia and Theileria parasites2019

    • Author(s)
      Mohamed A. Rizk, Shimaa El-Sayed, Noakia Yokoyama, Ikuo Igarashi
    • Organizer
      The 88th Annual Meeting of Japanese Society of Parasitology
  • [Presentation] An immunochromatographic test for serodiagnosis of human babesiosi2018

    • Author(s)
      Hiroshi Isek, Azirwan Guswanto, Chul-min Kim, Atsuko Saito-Ito, Yuka Minoda, Hisashi Inokuma, Naoaki Yokoyama, Peter J Krause, and Ikuo Igarashi
    • Organizer
      The first human babesiosis conference
    • Int'l Joint Research
  • [Presentation] Developmentof novel diagnostic methods and drugs for babesiosis2018

    • Author(s)
      Ikuo Igarashi
    • Organizer
      The 14th International Congress of Parasitology
    • Int'l Joint Research / Invited
  • [Presentation] An immunochromatographic test for human babesiosis caused by Babesia microti2018

    • Author(s)
      Ikuo Igarashi
    • Organizer
      The 14th International Congress of Parasitology
    • Int'l Joint Research
  • [Presentation] Clofazimine as a potential agent for treating human babesiosis caused by Babesia microti2018

    • Author(s)
      B. Tuvshintulga, T. Sivakumar, N. Yokoyama, I. Igarashi
    • Organizer
      The 14th International Congress of Parasitology
    • Int'l Joint Research
  • [Presentation] Evaluation of the in vitro and in vivo inhibitory effect of thymoquinone on Babesia and Theileria parasite2018

    • Author(s)
      Mohamed Abdo Rizk, Shimaa Abd El-Salam El-Sayed, Naoaki Yokoyama, and Ikuo Igarash
    • Organizer
      The 14th International Congress of Parasitology
    • Int'l Joint Research
  • [Presentation] Cryptolepine and ellagic acid inhibit Babesia and Theileria in vitro2018

    • Author(s)
      Amani Magdi Beshbishy, Gaber El-Saber Batiha, Naoaki Yokoyama, Ikuo Igarashi
    • Organizer
      The 14th International Congress of Parasitology
    • Int'l Joint Research
  • [Presentation] Serological and molecular prevalence of equine piroplasmosis in Western Java, Indonesia2018

    • Author(s)
      Arifin Budiman Nugraha, Umi Cahyaningsih, Amrozi, Azirwan Guswanto, Sambuu Gantuya, Bumduuren Tuvshintulga, Thillaiampalam Sivakumar, Naoaki Yokoyama, Ikuo Igarashi
    • Organizer
      The 116th Annual Meeting of the Japanese Society of Veterinary Medicine
  • [Presentation] Inhibitory effects of chalcone and trans-chalcone on the growth of Babesia and Theileria2018

    • Author(s)
      Gaber El-Saber Batiha, Amany Magdy Beshbishy, Naoaki Yokoyama and Ikuo Igarashi
    • Organizer
      The 116th Annual Meeting of the Japanese Society of Veterinary Medicine
  • [Presentation] Evaluation of the Chemotherapeutic Potential of Nitidine chloride and Camptothecin Against Babesia and Theileria2018

    • Author(s)
      Ikuo Igarashi, Dickson S. Tayebwa, Bumduuren Tuvshintulga, Azirwan Guswanto, Thillaiampalam Sivakumar, Naoaki Yokoyama
    • Organizer
      The 67th Annual Meeting of American Society of Tropical Medine
  • [Presentation] Screening the Medicines for Malaria Venture Pathogen Box against piroplasm parasites2018

    • Author(s)
      Arifin Budiman Nugraha, Bumdureen Tuvshintulga, Mohamed Abdo Rizk, Sambuu Gantuya, Gaber El-Saber Batiha, Thillaiampalam Sivakumar, Naoaki Yokoyama, Ikuo Igarashi.
    • Organizer
      The 59th Annual Meeting of Japanese Society of Tropical Medine
  • [Presentation] Inhibitory effects of ivermectin on the growth Babesia and Theileria2018

    • Author(s)
      Gaber El-Saber Batiha, Amany Magdy Beshbishy, Naoaki Yokoyama and Ikuo Igarashi
    • Organizer
      The 59th Annual Meeting of Japanese Society of Tropical Medine

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Published: 2019-12-27  

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