한국임상수의학회지 (Journal of Veterinary Clinics)

  • 제13권2호
  • /
  • Pages.130-139
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  • 1996
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  • 1598-298X(pISSN)
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  • 2384-0749(eISSN)
한국임상수의학회 (The Korean Society of Veterinary Clinics)
권호 표지

개 외이도내 Malassezia pachydercatis 감염에 대한 면역 반응

Immune Reaction to Infection by Malassezia pachydercatis in Canine Ezternal Ear Canals

  • 이진희 (서울대학교 수의과대학) ;
  • 오태호 (서울대학교 수의과대학) ;
  • 한홍율 (서울대학교 수의과대학) ;
  • 조상내 (연세대학교 의과대학)
  • 발행 : 1996.06.01
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초록

Malassezia pachydercatis균은 개 외이염의 주된 원인균으로 알려져 있으나, 그 감염률은 지역에 따라 많은 차이가 있다. 그러나 그 기병론적인 역할에 대해서는 아직 명확히 밝혀지지 않았다. 이에 본문에서는 국내에서 사육되는 개의 외이염에서 Malassezia pachydercatis 균의 분리율을 조사하고, Malassezia pachydercatis에 대한 혈중 항체와 외이염과의 연관성을 밝혀 Malassezia pachydercatis에 의한 외이염 진단을 위한 도구로서 간접 ELISA 법의 유용성을 평가해 보고자 본 연구를 수행하였다. 총 112두 중, 외이염에 감염된 개 44두와 정상견 68두를 대상으로, 심부외이도에서 취한 가검물을 배양검사하였고, Malassezia pachydercatis 항원에 대한 혈청내 IgG와 IgM 역가를 간접 ELISA법에 의해 측정하였다. 살아있는 Malassezia pachydercatis 균을 3두의 정상견 외이도에 접종하여 Malassezia pachydercatis 균의 실험적 감염에 대한 조직병리학적 소견, 조직내 침투 정도, 그리고 접종 후 시간경과에 따른 IgG와 IgM의 혈중 역가변화를 측정하였다. Malassezia pachydercatis 균은 외이염이 있는 개 귀에서 가장 높게 분리(50.0%)되었고, 정상귀에서는 낮게 분리(6.3%)되었다. Malassezia pachydercatis 항원을 이용한 간접 ELISA 법 진단에서, Malassezia pachydercatis 양성배양인 외이염 개체에서 IgG와 IgM에 대한 민감도는 각각 41.7%, 20.8%이었고 특이도는 88.2%, 85.2% 이었다. 실험적으로 Malassezia pachydercatis 를 접종한 3두중 1두에서만 조직병리학적 변화와 모낭에 Malassezia pachydercatis 균체가 확인되었으며, IgG와 IgM 혈중역가도 유의성 있게 증가하였다. 국내에서 사육되는 개 외이염의 주된 원인균은 Malassezia pachydercatis 균이었고 이 균의 혈중항체는 유의성 있게 증가하였으며(p<0.005), 간접 ELISA법은 Malassezia pachydercatis 에 의한 개외이염의 유용한 진단도구임을 증명하였다.

키워드

참고문헌

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