Anti-Obese Effects of Mixture Contained Pine needle, Black Tea and Green Tea Extracts

솔잎, 홍차 및 녹차 추출물 함유 조성물의 항비만 효과

  • Jeon, Jeong-Ryae (Obesity-Diabetes Advanced Research Center, College of Medicine, Yeungnam University) ;
  • Kim, Jong-Yeon (Obesity-Diabetes Advanced Research Center, College of Medicine, Yeungnam University) ;
  • Lee, Kyung-Mi (LG-Bio Research Institute) ;
  • Cho, Duck-Hyung (LG-Bio Research Institute)
  • 전정례 (영남대학교 의과대학 비만-당뇨병 선도연구센터) ;
  • 김종연 (영남대학교 의과대학 비만-당뇨병 선도연구센터) ;
  • 이경미 (엘지바이오 연구소) ;
  • 조덕형 (엘지바이오 연구소)
  • Published : 2005.12.31

Abstract

The aims of this study were to evaluate the anti-obese effects of pine needle, black tea and green tea in rats and overweight people. Supplementation of 1, 2, 4 and 8% amount to the control diet of pine needle extract and mixture groups significantly decreased body weight gain and visceral fat mass compared with that of control diet group. Supplementation of 1, 2 and 4% amount to the control diet of black and green tea extracts groups significantly decreased body weight gain and visceral fat mass compared with that of control diet group. Anti-obese effect in body weight gain and visceral fat mass of mixture group was higher than in other groups. In human study, extracts mixture supplementation to overweight subjects significantly decreased both body weight and body fat compared with placebo control group. In vitro study, black and green tea extracts significantly inhibited both the pancreatic lipase and ${\alpha}-amylase$ activities dose dependently. In conclusion, the anti-obese effects of pine needle, black, and green teas in rats were found. In overweight human subjects, extracts mixture decreased body weight and body fat compared with placebo control group. Anti-obese effect in black and green tea groups might be from an decrease in carbohydrate and fat digestions via inhibition of pancreatic ${\alpha}-amylase$ and lipase activities in part.

본 연구는 흰쥐와 과체중인에서 솔잎, 홍차 및 녹차 추출물의 항-비만효과와 관련기전을 알아보기 위하여 시행되었다. 흰쥐는 무작위로 솔잎, 홍차, 녹차 및 추출물 혼합물 군으로 분류되었다. 대조군은 흰쥐 chow 식이로 사육되었으며 추출물군은 각각 0.5, 1, 2, 4 및 8% 추출물을 흰쥐 chow 식이에 첨가하여 5주간 사육하였다. 추출물 혼합물은 솔잎 :홍차 :녹차를 2 : 1 : 1의 비율로 만들어 흰쥐 chow 식이에 첨가하여 제조하였다. 솔잎과 혼합물 추출물 1, 2, 4 및 8% 첨가군은 대조군에 비하여 유의하게 체중과 내장지방을 감소시켰다. 홍차와 녹차추출물 1, 2, 4% 첨가군은 대조군에 비하여 유의하게 체중과 내장지방을 감소시켰다. 추출물 혼합군이 다른 군에 비해서 체중과 내장지방 감소효과가 컸다. 5주간의 식이동안 총 식이 섭취량은 녹차 및 홍차 8% 첨가군을 제외하고는 그룹간 차이가 없었다. 5주간의 식이에서 총 변량은 솔잎, 녹차 및 추출물 혼합 1, 2, 4% 첨가군에서 대조군보다 많았다. 과체중인에서는 추출물 혼합물이 대조군에 비하여 체중과 체지방을 유의하게 감소시켰다. 솔잎, 홍차 및 녹차의 작용기전을 알아보기 위한 시험관실험에서 솔잎은 췌장의 lipase 및 ${\alpha}-amylase$ 활성도를 억제하지 않았다. 반면에 홍차와 녹차는 농도 의존적으로 췌장의 lipase 및 ${\alpha}-amylase$ 활성도를 억제하였다. ${\alpha}-amylase$의 억제효과는 홍차가 녹차보다 컸으나 lipase의 활성 억제는 반대였다. 결론적으로 흰쥐에서 솔잎, 홍차 및 녹차의 항-비만 효과가 관찰되었으며 추출물 혼합물의 항-비만 효과가 같은 조건에서는 가장 컸다. 과체중인에서 추출물 혼합물은 대조군에 비하여 체중 및 체지방 감소효과를 보였다. 홍차와 녹차의 항-비만효과는 부분적으로는 위장관에서 췌장 lipase와 ${\alpha}-amylase$의 활성 억제에 의한 탄수화물과 지방의 소화감소에 기인하는 것으로 생각된다.

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