• Title/Summary/Keyword: Estradiol-17β, Hepatosomatic index, Plasma values, Sebastes schlegeli, Vitellogenin

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Temporal Changes of Plasma Vitellogenin (VTG), Alkaline-Labile Protein Phosphorus (ALPP), Calcium (Ca), Glutamate Pyruvate Transaminase (GPT) and Hepatosomatic Index (HSI) in the $Estradiol-17\beta-Administered$ Immature Rockfish, Sebastes schlegeli ($Estradiol-17\beta$의 복강주사에 따른 미성숙 조피볼락, Sebastes schlegeli의 혈장 VTG, ALPP, Ca, GPT 및 HSI의 일시적 변동)

  • Hwang, Un-Gi;Sim, Jeong-Min;Park, Seung-Yun;Ji, Jeong-Hun;Gang, Ju-Chan
    • Journal of fish pathology
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    • v.17 no.3
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    • pp.191-198
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    • 2004
  • Temporal changes of plasma vitellogenin (VTG), alkaline-labile protein phosphorus (ALPP), calcium (Ca), glutamate pyruvate transaminase (GPT) and hepatosomatic index (HSI) were examined in the $estradiol-17\beta$ ${E_2}$-administered immature rockfish, Sebastes schlegeli. Fish were intraperitoneally injected with ${E_2}$ (5 ㎎/kg B.W.) in 70% ethanol and then plasma were extracted at 0, 1, 3, 6, 9, 12 and 15 days. VTG band was detected at a molecular weight position of about 170 kDa on Day 3 in SDS-PAGE. This band became more distinct at 6 days but its was gradually thinned with time-course, and not detected at 15 days. Plasma ALPP and Ca increased suddenly at 1 day and the highest concentrations were detected at 6 days and then these concentrations decreased gradually with time-course. ALPP and Ca concentrations at 15 days after E2 administration were very similar to that before E2 administration. GPT was increased at 1 day and higher GPT was detected at 3 days. However, GPT was gradually decreased with time-course. GPT and HSI at 15 days after E2 administration were also very similar to that before E2 administration. HSI was also increased at 1 day and the highest value was detected at 3 days and then gradually decreased with time-course. These results suggest that plasma ALPP, Ca, GPT and HSI could be utilized as a biomarker of exogenous E2 exposure in coastal ecosystem, because the changes of ALPP, Ca, GPT and HSI after E2 administration are very similar to that of VTG.