생명과학회지 (Journal of Life Science)

  • 제10권6호
  • /
  • Pages.577-583
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  • 2000
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
권호 표지

간장조직의 활성산소 및 그 제거효소에 미치는 실크 피브로인의 영향

Effect of Silk Fibroin on Oxygen Radicals and Their Scavenger Enzymes in Liver of SD Rats

  • 최진호 (부경대학교 식품생명공학부 생화학교실) ;
  • 김대익 (부경대학교 식품생명공학부 생화학교실) ;
  • 박수현 (부경대학교 식품생명공학부 생화학교실) ;
  • 김정민 (부경대학교 식품생명공학부 생화학교실) ;
  • 조원기 (조아제약(주)) ;
  • 이광길 (농촌진흥청 농업과학기술원 잠사곤충부) ;
  • 여주홍 (농촌진흥청 농업과학기술원 잠사곤충부) ;
  • 이용우 (농촌진흥청 농업과학기술원 잠사곤충부)
  • 발행 : 2000.12.01
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초록

This study was designed to investigate the effect of silk fibroin (Mw 500)power (SFP) on oxygen radicals and their scavenger enzymes in liver membranes of rats. Sprague-Dawley (SD) male rats (160$\pm$10 g) were fed basic diet (control group), and experimental diets (SFP-2.5 and SFP-5.0 groups) added 2.5 and 5.0 g/kg BW/day for 6 weeks. Hydroxyl radical (.OH) levels resulted in a considerable decreases (5.8% and 8.4%, 3.7% and 11.1%, respectively) in liver motochondria and micorsomes of SFP-2.5 and SFP-5.0 groups compared with control group, and $O_2$radical level was remarkably decreased about 15% and 20% in liver cytosol of SFP-2.5 and SFP-5.0 groups compared with control group. Lipid peroxide (LPO) levels were significantly decreased (8.3% and 18.0%, 13.4% and 18.4%, respectively) in liver mitochondria and microsomes of SFP-2.5 and SFP-5.0 groups compared with control group. Oxidized protein (OP) levels were remarkably decreased about 11.6% in liver mitochondria of SFP-5.0 group compared with control group. Mn-SOD activities were remarkably in creased (17.6% and 28.8%, respectively) in mitochondria of SFP-2.5 and SFP-5.0 groups, and Cu/Zn-SOD activities were also effectively in creased (about 14.4%) in liver cytosol of SFP-5.0 groups, but significant difference between GSHPx activity in liver cytosol of these two groups could be not obtained. These results suggest that anti-aging effect of silk fibroin may play an effective anti-aging role in a aattenuating a oxidative stress and increasing a scavenger enzyme activity in liver membranes.

키워드

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