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Molecular Seroepidemiologic Studies on Piroplasmosis of Domestic Animals in Brazil

Research Project

Project/Area Number 12575028
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Basic veterinary science/Basic zootechnical science
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

FUJISAKI Kozo  Obihiro University of Agriculture and Veterinary Medicine (OUAVM), National Research Center for Protozoan Diseases (NRCPD), Professor, 原虫病研究センター, 教授 (00292095)

Co-Investigator(Kenkyū-buntansha) NAGASAWA Hideyuki  OUAVM, NRCPD, Professor, 原虫病研究センター, 教授 (60172524)
XUAN Xuenan  OUAVM, NRCPD, Associate Professor, 原虫病研究センター, 助教授 (10292096)
IGARASHI Ikuo  OUAVM, NRCPD, Professor, 原虫病研究センター, 教授 (80159582)
KAMIO Tsugihiko  OUAVM, NRCPD, Visiting Professor, National Institute of Animal Health, Head, 動物衛生研究所, 研究室長
INOUE Noboru  OUAVM, NRCPD, Assistant Professor, 原虫病研究センター, 講師 (10271751)
筏井 宏実  北里大学, 獣医畜産学部, 助手
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥14,400,000 (Direct Cost: ¥14,400,000)
Fiscal Year 2002: ¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 2001: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2000: ¥5,000,000 (Direct Cost: ¥5,000,000)
Keywordspiroplasmosis / Theileria orientalis sergenti / herpes virus / recombinant vaccine / Babesia parasites / gene cloning / vector tick / Haemaphysalis longicornis / ピロプラズマ病 / タイレリア原虫 / バベシア原虫 / 血清抗体 / 媒介ダニ / DNA診断 / 住血原虫病 / ELISA / カピパラ / トリパノソーマ
Research Abstract

(1) Serum samples from horses in the States of Sao Paulo and Mato Grosso do Sul, Brazil were examined for diagnosis of equine piroplasmosis by both the latex agglutination test (LAT) and the enzyme-linked immunosorbent assay (ELIZA) with recombinant antigens. Of the examined samples, 81% and 90% samples were positive for Babesia equi and Babesia caballi infection, respectively. Also, 75%75% samples were positive for both B. equi and B. caballi mixed infections. These results indicate that equine piroplasmosis is widespread and therefore a cause for serious concern in the States of Sao Paulo and Mato Grosso do Sul, Brazil.
(2) The potential role of Boophilus microplus as natural tick vector of B. equi and B. caballi in Brazilian horses was assessed using nested polymerase chain reaction (PCR)-based marker assay. B. equi merozoite-specific 218bp gene fragment (EMA-1) was detected in 45.3-62.5% of females, eggs, larvae, and nymphs of B. microplus collected from 47 horses at the State of Ma … More to Grosso do Sul, Brazil.
Except for the partially-fed female ticks, the B. caballi-specific 430 bp gene fragment was amplified from developmental stages. Therefore, we have obtained molecular evidence that strengthens earlier experimental and ultrastructural studies on Brazil incriminating B. microplus as a natural vector of B. equi, and possibly of B. caballi.
(3) Primers specific for EMA-1 gene of B. equi successfully amplified products from all samples of Dermacentor nuttalli adult ticks from Mongolia while primers for the 430 bp gene fragment product from BC48 gene of B. caballi amplified products from seven of the 54 samples. We have found mixed infections with B. equi and B. caballi in the tick vector. These results suggest that D. nuttalli may play an important role as a vector of both B. caballi and B. equi and also may be important in maintenance of endemicity of equine piroplasmosis in Mongolia. The detection of parasite DNA in eggs and larval progenies is likewise suggestive of transovarial parasite transmission in D. nuttalli ticks.
(4) At least three different variations in EMA-1 gene of B. equi strains isolated from different regions. The phylogenetic tree deduced from the sequences suggests a closer relationship between the Brazilian and Florida strains of B. equi DNA, and a distant relationship between B. equi DNA isolated from the Brazilian samples and USDA strain. B. equi gene obtained from Mongolian samples revealed comparatively distant relationship to other examined strains. Less

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Battsetseg, B.: "Detection of Babesia caballi and Babesia equi in Dermacentor nuttalli adult ticks"Int.J.Parasitol.. 31・4. 384-386 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xuan, X.: "Diagnosis of eqine piroplasmosis in Brazil by serodiagnostic methods with recombinant antigens"J.Vet.Med.Sci.. 63・10. 1159-1160 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ikadai, H.: "Seroepidemiologic studies on Babesia cabili and Babesia equi infections in Japan"J.Vet.Med.Sci.. 64・4. 325-328 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Battsetseg, B.: "Detection of equine Babesia spp. gene fragments in Dermacentor nuttalli Olenev 1929 infesting Mongolian horses, and their amplification in egg and larval protenies"J.Vet.Med.Sci.. 64・8. 727-730 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Battsetseg, B.: "Detection of natural infection of Boophilus micrplus with Babesia equi and Babesia caballi in Brazilian horses using nested polymerase chain reaction"Vet.Parasitol.. 107・2. 351-357 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xuan, X.: "Diagnosis of equine piroplasmosis in Xinjiang province of China by the enzyme-linked imunosorbent assays using recombinant antigens"Vet.Parasitol.. 108・2. 179-182 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Rodriguez, J.L.B., et al.: "Molecular evidence of Babesia caballi (Nuttall and Strickkland, 1910) parasite transmission from experimentally-infected SCID mice to the ixodid tick Haemaphysalis longicornis (Neuman, 1910)"Vet. Parasitol.. 102・1. 185-191 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Battsetseg, B., et al.: "Detection of Babesia caballi and Babesia equi in Dermacentor nuttalli adult ticks"Int. J. Parasitol.. 31・4. 383-386 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xuan, X., et al.: "Diagnosis of equine piroplasmosis in Brazil by serodiagnositic methods with recombinant antigens"J. Vet. Med. Sci.. 63・10. 1159-1160 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Boldbaatar, D., et al.: "Detection of antibodies to Hyalomma lineatum in cattle by western blotting with recombinant hypodermin C antigen"Vet. Parasitol.. 99・2. 147-154 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ikedai, H., et al.: "Seroepidemiologic studies on Babesia caballi and Babesia equi infections in Japan"J. Vet. Med. Sci.. 64・4. 325-328 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Battsetseg, B., et al.: "Detection of natural infection of Boophilus microplus with Babesia equi and Babesia caballi in Brazilian horses using nested polymerase chain reaction"Vet. Parasitol.. 107・4. 351-357 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Battsetseg, B., et al.: "Detection of equine Babesia spp. Gene fragments in Dermacentor nuttalli Olenev 1929 infesting Mongolian horses, and their amplification in eggs and larval progenies"J. Vet. Med. Sci.. 64・8. 727-730 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xuan, X., et al.: "Diagnosis of equine piroplasmosis in Xinjiang province of China by the enzyme-linked immunosorbent assays using recombinant antigens"Vet. Parasitol.. 108・2. 179-182 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kadota, K., et al.: "Existence of phenol oxidase in the argasid tick Ornithodoros moubata"Parasitol. Res.. 88・8. 781-784 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ikadai, H.: "Seroepidemiologic studies on Babesia cablli and Babesia equi infections in Japan"J.Vet.Med.Sci.. 64・4. 325-328 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Battsetseg, B.: "Detection of equine Babesia spp. gene fragments in Dermacentor nuttalli Olenev 1929 infesting Mongolian horses, and their amplification in egg and larval protenies"J.Vet.Med.Sci.. 64・8. 727-730 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Battsetseg, B.: "Detection of natural infection of Boophilus micrplus with Babesia equi and Babesia caballi in Brazilian horses using nested polymerase chain reaction"Vet.Parasitol.. 107・2. 351-357 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Xuan, X.: "Diagnosis of equine piroplasmosis in Xinjiang province of China by the enzyme-linked imunosorbent assays using recombinant antigens"Vet.Parasitol.. 108・2. 179-182 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Xuan, X.: "Detection of antibodies to Babesia equi in horses by a latex agglutination test using recombinant EMA-1"Clin. Diagn. Lab. Immun. 8・3. 645-646 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Battsetseg, B.: "Diagnosis of Babesia caballi and Babesia equi infections in Dermacentor nuttalli adult ticks"Int. J. Parasitol.. 31・4. 384-386 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Boldbaatar D.: "Detection of antibodies to Hypoderma lineatum in cattle by Western blotting with recombinant hypodermin C antigen"Vet Parasitol.. 99・2. 147-154 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Xuan, X.: "Diagnosis of equine piroplasmosis in Brazil by serodiagnostic methods with recombinant antigens"J. Vet. Med. Sci.. 63・10. 1159-1160 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Rodriguez, J.L.B.: "Molecular evidence of Babesia caballi(Nuttall and Strickkland, 1910) parasite transmission from experimentally-infected SCID mice to the ixodid tick Haemaphysalis longicornis (Neuman, 1910)"Vet. Parasitol. 102・1. 185-191 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Battsetseg, B.: "Natural infection of Boophilus microplus with Babesia equi and Babesia caballi in Brazilian horses and evidence or transovarial transmission using nested polymerase chain reaction"Vet. Parasitolog y. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Inoue,N.: "Novel species specific antigens of Trypanosoma congolense and their different localization among life-cycle stages. "Journal of Veterinary Medical Science. 62・10. 1041-1045 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Badgar,B.: "Diagnosis of Babesia caballi and Babesia equi infections in Dermacentor nuttalli adult ticks."International Journal for Parasitology. 31(印刷中). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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