Effect of the extracts from Schisandra chinensis Fruit and Morus alba Leaf on Insulin Secretion in Glucose-induced HIT-T15 Cells

오미자와 뽕잎 추출물이 glucose에 의해 유도된 HIT-T15세포의 인슐린 분비능에 미치는 영향

  • 정유석 ((재)대구테크노파크 바이오헬스융합센터) ;
  • 홍주헌 (대구가톨릭대학교 식품가공학전공) ;
  • 정희경 ((재)대구테크노파크 바이오헬스융합센터)
  • Received : 2011.05.27
  • Accepted : 2011.10.21
  • Published : 2011.12.30


This study aimed to examine the effect of the Schizandra chinensis fruit and Morus alba leaf on insulin expression in HIT-T15 cells, which is exposed by glucose. The total polyphenol contents of the S. chinensis fruit ethanol extract and the M. alba leaf hot-water extract were $20.11{\pm}0.35$ mg/g and $50.02{\pm}0.62$ mg/mL, respectively. The S. chinensis fruit ethanol extract and the M. alba leaf hot-water extract contained $2.85{\pm}0.15$ and $8.76{\pm}0.43$ mg/g flavonoids, respectively. The antioxidant ability of the M. alba leaf hot-water extract was found to be superior to that of the S. chinensis fruit ethanol extract. Compared to the HIT-T15-treated 10 mM 2-deoxy-D-glucose, the $100{\mu}g/mL$ S. chinensis ethanol extract was found to have a two fold increase in insulin productivity. Moreover, the $100{\mu}g/mL$ M. alba leaf hot-water extract promoted the insulin secretion of high-glucose-damaged HIT-T15 almost ten fold. The above results showed that the S. chinensis fruit ethanol extract and M. alba leaf hot-water extract may improve the insulin productivity of the beta cell with glucose-induced oxidative damage. These data suggest that the S. chinensis fruit ethanol extract and the M. alba leaf hot-water extract can be used as food materials for the regulation of insulin secretion.


Supported by : 지식경제부


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