Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Antidiabetic Activity of Polysaccharide Extract from Tetragonia tetragonoides in Streptozotocin-induced Diabetic Mice

스트렙토조토신으로 유도한 당뇨 마우스에서 번행초 다당 추출물의 항당뇨 효과

  • Choi, Hye Jung (Department of Biology and Chemistry, Changwon National University) ;
  • Yee, Sung-Tae (College of Pharmacy, Sunchon National University) ;
  • Joo, Woo Hong (Department of Biology and Chemistry, Changwon National University)
  • 최혜정 (창원대학교 생물학화학융합학부) ;
  • 이성태 (순천대학교 약학대학) ;
  • 주우홍 (창원대학교 생물학화학융합학부)
  • Received : 2016.11.30
  • Accepted : 2016.12.22
  • Published : 2017.05.30
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Abstract

Tetragonia tetragonioides seems to be a promising antiulcer medicinal plant due to the presence of water-soluble polysaccharide and cerebroside as its major constituents. There have been no previous studies using T. tetragonioides polysaccharide extract (TPE) to assess its antidiabetic effect in streptozotocin (STZ)-induced diabetes in mice. This study was designed to evaluate the antidiabetic effect of TPE in diabetic mice, which was established by one-week intraperitoneal injection of 65 mg/kg STZ. After three weeks of TPE treatment at a dose of 100 mg/kg, a maintenance of body weight, a decrement in plasma glucose, and low levels of triglyceride, lactate dehydrogenase, alkaline phosphatase, and glutamic pyruvic transaminase were observed in diabetic mice. Furthermore, the ingestion of TPE lowered the blood glucose levels during the oral glucose tolerance test (OGTT) and restored most of the tested parameters to their normal levels. Therefore, the antidiabetic potential of T. tetragonioides has been demonstrated for the first time by our research.

번행초는 주요 화합물인 수용성 다당류와 cerebroside의 작용에 기인하여 기대되는 항궤양성 약용작물이다. 스트렙토조토신 유도 당뇨마우스에서 번행초의 다당 추출물(TPE)의 항당뇨 효과는 이전에 보고된 바가 없다. 본 연구는 체중 1 kg 당 65 mg의 스트렙토조토신을 복강에 주사하여 확립된 당뇨 마우스에서 TPE의 항당뇨 효과를 측정하기 위해 실시하였다. 100 mg 농도의 TPE를 3주간 투여했을 때, 당뇨 마우스의 체중은 유지되었으며, 혈당, 중성지방, 그리고 lactate dehydrogenase, alkaline phosphatase 및 glutamic pyruvic transaminase가 낮은 수준으로 감소함이 관찰되었다. 또한 내당능 실험에서도 TPE의 투여는 대조군인 당뇨 마우스에 비해 혈당 수준을 현저하게 감소시켰으며, 실험 가능한 거의 모든 생화학적 요인을 당뇨마우스에 비해 낮은 수준으로 회복시켰다. 따라서 전통적인 약용작물인 번행초의 잠재적인 항당뇨 효능을 본 연구에서 처음으로 증명하였다.

Keywords

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