Effects of 4-Nonylphenol on the Induction of Plasma Vitellogenin (VTG), Alkaline-Labile Protein Phosphorus (ALPP), Calcium (Ca), Glutamate Pyruvate Transaminase (GPT) and Hepatosomatic Index (HSI) in the Immature Rockfish, Sebastes schlegeli

4-NP가 미성숙 조피볼락, Sebastes schlegeli의 혈장 VTG, ALPP, Ca, GPT 및 HSI에 미치는 영향

  • Hwang, Un-Ki (West Sea Fisheries Research Institute, National Fisheries Research Institute & Development Institute) ;
  • An, Kyoung-Ho (West Sea Fisheries Research Institute, National Fisheries Research Institute & Development Institute) ;
  • Jin, Hyoun-Kook (East Sea Fisheries Research Institute, National Fisheries Research Institutue & Development Institute) ;
  • Park, Seung-Youn (West Sea Fisheries Research Institute, National Fisheries Research Institute & Development Institute) ;
  • Kim, Pyoung-Joong (West Sea Fisheries Research Institute, National Fisheries Research Institute & Development Institute) ;
  • Lee, Seung-Min (West Sea Fisheries Research Institute, National Fisheries Research Institute & Development Institute)
  • 황운기 (국립수산과학원 서해수산연구소) ;
  • 안경호 (국립수산과학원 서해수산연구소) ;
  • 진현국 (국립수산과학원 동해수산연구소) ;
  • 박승윤 (국립수산과학원 서해수산연구소) ;
  • 김평중 (국립수산과학원 서해수산연구소) ;
  • 이승민 (국립수산과학원 서해수산연구소)
  • Published : 2007.12.31

Abstract

4-nonylphenol (4-NP)이 해산어류인 조피볼락, Sebastes schlegeli의 혈장 vitellogenin (VTG), alkaline-labile protein phosphorus (ALPP), calcium(Ca), glutamate pyruvate transaminase (GPT) 및 hepatosomatic index (HSI)에 미치는 영향을 조사하였다. 실험어에 3일간격으로 $estradiol-17{\beta}$ ($E_2$, 5 mg/kg B.W.) 또는 4-NP(0, 10, 50, 100및 200 mg/kg B.W.)을 복강에 2번 주사한 후, 7일째에 채혈과 적출을 통해 혈장과 간장을 수집해 분석이 실시되었다. 대조 실험어에는 용매로 사용된 70% 에탄올만이 투여되었다. $E_2$ 투여 실험어의 혈장 단백질을 전기 영동상으로 분석한 결과 약 170 kDa의 위치에서 짙은 VTG 밴드가 관찰되었으나, 용매만 투여한 대조 실험어의 혈장에서는 동일 밴드가 관찰되지 않았다. 4-NP 투여한 모든 실험어의 혈장 단백질에서는 $E_2$ 투여 실험어와 동일한 VTG 밴드가 관찰되었다. 혈장 ALPP와 Ca 농도도 4-NP 투여 실험어에서 $E_2$ 투여 실험어와 유사하게 증가하였으며, 이들 농도 변화는 VTG 합성과 더불어 증가하는 경향을 나타냈다. 혈장 전위효소인 GPT와 HSI도 $E_2$ 투여 실험어와 유사하게 4-NP가 투여된 모든 실험어에서 급격히 증가하였다. 이상의 결과로부터 연안생태계 내에서 서식하는 어류가 4-NP과 같은 내분비 장애물질(Endocrine Disrupting compounds, EDCs)에 의해 영향을 받는지를 규명하기 위한 생물학적 지표로서 VTG와 더불어 혈장 ALPP와 Ca이 사용가능 할 것으로 판단된다. 또한, 조피볼락과 같은 해산어가 EDCs에 노출되어 VTG가 합성될 때 간장 기능의 손상으로 혈장 전위효소인 GPT가 일시적으로 종가하고 간장도 비대해져 HSI가 높아지는 것으로 판단된다.

Keywords

References

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