Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Changes in Serum Insulin-Like Growth Factor Binding Protein-5 of Osteopenia

골감소증 환자의 혈청중 Insulin-Like Growth Factor Binding Protein-5의 변화

  • Kim, Young (Faculty of Food Science and Biotechnology, Pukyong National University) ;
  • Nam, Taek-Jeong (Faculty of Food Science and Biotechnology, Pukyong National University)
  • 김영 (부경대학교 식품생명공학부) ;
  • 남택정 (부경대학교 식품생명공학부)
  • Published : 2000.06.01
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Abstract

골감소증 환자의 혈청중에 존재하는 IGFBP-5의 존재와 변화를 검토한 결과, 골감소즈 환자에서는 정상 대조군에 비해 IGFBP-5가 감소하였는데 이 변화는 IGFBP-5의 분해효소가 작용하기 때문인 것으로 나타났다. IGFBP-5에 작용하는 단백질분해효소 저해제중 metallo계인 EDTA 및 1,10-phenanthroline과 seriner계인 aprotinin, heparin, heparin cofactor 2(HC2), heparine+HC2가 IGFBP-5에 대해 저해효과가 크므로 metalloprotease이면서 serine protease의 성질을 가지는 효소들이 IGFBP-5에 작용하였다. IGF-I과 IGF-II 그리고 insulin은 효소 활성에 아무런 영향이 없었다. IGFBP-5의 zymography에서 정상인과 골감소증 환제어서 180 kDa 크기의 band가 나타났고, gelatin zymography에서 정상 대조군의 경우 66 kDa과 97 kDa 정도의 band가 확인되었고 골감소증 환자의 경우는 69 kDa의 band가 확인되었다.

Keywords

References

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