Effects of Mulberry Leaf Extract on Oxygen Radicals and Their Scavenger Enzymes in Serum of Rats

뽕잎추출물이 혈청중의 활성산소 및 제거효소에 미치는 영향

  • 최진호 (부경대학교 식품생명공학부 생화학교실) ;
  • 김대익 (부경대학교 식품생명공학부 생화학교실) ;
  • 박수현 (부경대학교 식품생명공학부 생화학교실) ;
  • 김동우 (부경대학교 식품생명공학부 생화학교실) ;
  • 이종수 (부경대학교 식품생명공학부 생화학교실) ;
  • 류강선 (농업과학기술원 잠사곤충부) ;
  • 이완주 (농업과학기술원 잠사곤충부)
  • Published : 1999.12.01

Abstract

This study was designed to investigate the effects of mulberry leaf extract (MLE) on oxygen radicals and their scavenger enzymes in serum of rats. Sprague-Dawley (SD) male rats (160${\pm}$10g) were fed experimental diets (MLE-100 and MLE-300 groups) added 100 and 300mg/kg BW/day for 6weeks. Triglyceride (TG) levels were significantly inhibited (10% and 20%) in MLE-100and MLE-300 groups, but there were no significant differences in total, LDL-and HDL- cholesterol levels in both MLE-100 and MLE-300 groups. Hydroxyl radical ($.$OH) formations resulted in a marked decreases(20∼25%) in MLE-100 and MLE-300 groups compared with control group, while superoxide radical (O2.-)and hydrogen peroxide formations resulted in a considerable decreases(7∼10% and 5∼10%) in MLE-100 and MLE-300 groups compared with control group. Lipid peroxide (LPO)and oxidized protein(>C=O group) productions resulted in a significant decreases (10% and 6∼10%) in MLE-100 and MLE-300 groups compared with control group. Superoxide dismutase (SOD)and catalase (CAT) activities were remarkably increased (30% and 40∼55%) in MLE-100 and MLE-300 groups, but glutathione peroxidase (GSHPX) activities were significantly increased (10∼15%) in MLE-100 and MLE-300 groups compared with control group. These results suggest that anti-aging effect of mulberry leaf extract (MLE) may play a pivotal role in attenuating a various agerelated changes.

Keywords

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