Journal of fish pathology (한국어병학회지)

The Korean Society of Fish Pathology (한국어병학회)
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Effects of Aspirin on Nitrite Toxicity in Cultured Eel (Anguilla japonica)

양식 뱀장어 (Anguilla japonica)의 아질산 독성에 미치는 aspirin의 투여 효과

  • Kim, Dong-Wan (Department of Aquatic Life Medicine, Kunsan National University) ;
  • Koo, Jae-Geun (Department of Food Science & Biotechnology, Kunsan National University) ;
  • Park, Sung -Woo (Department of Aquatic Life Medicine, Kunsan National University)
  • 김동완 (군산대학교 수산생명의학과) ;
  • 구재근 (군산대학교 식품생명공학과) ;
  • 박성우 (군산대학교 수산생명의학과)
  • Published : 20071200
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Abstract

The effect of aspirin on the recovery of nitrite-induced methemoglobinemia in cultured eels (Anguilla japonica) was studied. Methemoglobinemia was induced by exposing eels to nitrite (120 ㎎ NO2-N/ℓ) for 24 hr. The nitrite exposed eels were bathed in 20 ppm aspirin solution (Aspirin), 0.8 % NaCl solution (NaCl), 20 ppm aspirin plus 0.8% NaCl solution (NaCl + Aspirin) and 50% nitrite free water(control) for 24 hr to recover from nitrite toxicity. Peripheral blood was taken from the arterious bulb from all groups to analyse hematocrit value, hemoglobin concentration, and nitrite concentration of the blood. Histopathological features of gill were also observed. Aspirin and control groups were more effective than NaCl and NaCl + Aspirin groups in recovery of hematocrit value and hemoglobin concentration, methemoglobin rate and nitrite concentration. The histopathological features on the gill of aspirin group were similar to those of normal eels, but other groups showed focal hyperemia in the lamellar carpillaries, epithelial hyperplasia. These results suggested that aspirin was very effective to recover from methemoglobinemia in nitrite-induced cultured eels.

양식 뱀장어(Anguilla japonica)의 사육 중 발생하는 아질산중독에 대한 aspirin(ASA)의 효과를 알아보기 위하여 인위적으로 메트헤모글로빈혈증을 유발시킨 다음 ASA, 식염, 식염과 ASA 및 1/2 환수시키고 24시간 동안 사육하였다. 각 처리군의 뱀장어에서 동맥구에서 말초혈액을 채취하여 헤마토크리트치, 혈구의 형태 변화, 혈장 중의 아질산의 농도 및 메트헤모글로빈의 농도와 아가미의 병리조직학적 변화를 조사하였다. ASA약욕군이 헤마토크리트치가 높고, 혈장중의 아질산 농도와 메트헤모글로빈의 농도가 낮을 뿐만 아니라 적혈구의 형태도 정상어와 유사하였다. 또한 아가미의 병리조직변화도 다른 처리군에서는 상피세포의 증생과 유착 및 모세혈관의 충혈 등이 확인되었지만, ASA처리군에서는 발견할 수 없었다. 이러한 결과로부터 ASA의 약욕이 뱀장어의 아질산의 독성저하에 효과적일 것으로 판단되었다.

Keywords

References

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