Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effects of Tea Fungus/Kombucha Beverage on Lipid Metabolism and Protein Level in Diabetic Female Rats

발효홍차 음료가 당뇨 암쥐의 지질대사 및 단백질농도에 미치는 영향

  • 노민희 (부산가톨릭대학교 보건과학대학 물리치료학과) ;
  • 고진복 (신라대학교 생명과학과)
  • Published : 2002.12.01
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Abstract

We investigated the effect of tea fungus/kombucha beverage(TF) on the body weights, the blood glucose levels, lipid and protein concentrations, and enzyme activities in diabetic female rats. Sprague-Dawley rats were fed drinking water supplemented with 20% or 40% TF groups, respectively for 7 weeks. The female rats (mean weight 155.5$\pm$9.3 g) were assigned to one control and three diabetic groups. Diabetic groups were divided into diabetic control (TF free water), 20% or 40% TFD groups (20% or 40% TF in water) according to the levels of TF supplementation. Diabetes was experimentally induced by intraperitonially administration of streptozotocin in citrate buffer(pH 4.3) after 2 weeks feeding of four experimental water. Animals were sacrificed at the 5 weeks of diabetic state. The diabetic groups showed significantly decrease of body weight(6.8-7.5 g) compared with the control group(48.3 g). The hepatic, kidney and pancreatic weights of 20% or 40% TFD groups were not significantly different with D-control group. The fasting serum glucose level were higher in all diabetic groups than that of the control group. The concentrations of serum triglyceride in 40% TFD group and serum LDL-cholesterol in 20% TFD group were significantly decreased compared with the D-control group. The concentrations of serum total cholesterol and HDL-cholesterol, HDL-cholesterol/total cholesterol ratio, and atherogenic index in 20% or 40% TFD groups were similar to those in D-control group. The concentrations of hepatic triglyceride in 20% or 40% TFD groups were significantly decreased compared with the D-control group, but the concentrations of hepatic cholesterol and phospholipid were similar to all diabetic groups. The concentrations of serum and hepatic total protein, serum albumin, and the activities of GOT, GPT and LDH in the serum were the same levels of all diabetic groups.

본 연구는 발효홍차가 당뇨 암쥐의 성장률, 혈청 및 간의 지질 농도, 단백질 농도 및 효소활성에 미치는 영향을 조사하고자, 평균체중 155.5$\pm$9.3 g 전후되는 Sprague- Dawley계 암쥐에 음료수를 급여한 정상군, 당뇨대조군 및 당뇨발효홍차군은 음료수에 발효흥차를 20%와 40%씩 혼합한 군 등 4군으로 나누어 각 실험음료로 2주간 사육한 다음, streptozotocin으로 당뇨를 유발시키고 계속 5주간 각 실험음료로 사육하였다. 체중의 변화는 당뇨유발 전 2주간 체중 증가는 대조군과 각 농도별 발효홍차 급여군이 비슷하여 발효홍차가 성장률에는 영향을 주지 않는 것으로 나타났다. 그러나 당뇨유발후 5주간의 체중변화는 정상군 48.3 g증가에 비하여 당뇨대조군과 각 농도별 당뇨발효홍차군은 당뇨로 인한 대사장애로 6.8~7.1 g으로 증가율이 낮았다. 공복시 혈당량은 당뇨대조군과 당뇨발효홍차군이 비슷한 경향으로 혈당량을 낮추지는 못하였다. 간, 신장 및 췌장의 무게는 당뇨대조군과 각 수준의 당뇨발효홍차군들이 비슷하였다. 그러나 간과 신장의 무게는 정상군 보다 당뇨 실험군들이 유의하게 증가되었으며, 췌장의 무게는 정상군보다 당뇨실헌군들이 유의하게 감소하였다. 혈청의 중성지질 농도는 40% 당뇨발효홍차군에서, LDL-콜레스테롤 농도는 20% 당뇨발효홍차군이 당뇨대조군 보다 유의하게 감소되었다. 혈청의 총 콜레스테롤, HDL-콜레스테롤 및 인지질 농도, HDL-콜레스테롤/총 콜레스테롤 비율 및 동맥경화지수는 당뇨대조군과 각 당뇨발효홍차군들이 비슷하였다. 간의 콜레스테롤 농도는 당뇨대조군과 각 당뇨발효홍차군들이 비슷하였으나, 중성지질 농도는 당뇨대조군에 비하여 당뇨발효홍차군들이 유의하게 감소되었고, 인지질 농도는 40% 당뇨발효홍차군에서 유의하게 증가되었다. 혈청의 총 단백질과 알부민 및 간의 단백질 농도, 혈청의 alkaline phosphatase, GOT 및 GPT 활성은 당뇨대조군과 각 당뇨발효홍차군들이 비슷하였다.

Keywords

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