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Effect of Rhemanniae Radix on the Hyperglycemic Mice Induced with Streptozotocin

생지황(Rhemanniae Radix)이 Streptozotocin으로 유발된 고혈당 생쥐에 미치는 영향

  • Published : 2004.08.01

Abstract

This study has been carried out to investigate the effect of the administration of Rhemanniae Radix extract (5.0 mL/kg/day, RR group) on the hyperglycemic mice (HM group) induced with streptozotocin (STZ). In blood glucose level, RR group showed a significant decrease compared with HM group. The result of glucose tolerance test was more favorable in RR than HM group. A lot of insulin-positive cells and insulin-like growth factor-II positive materials were observed in RR group. A number of apoptotic particles were observed in the HM group, but several apoptotic nuclei were found in RR group. Pancreatic islets of HM group were destructed by the administration of STZ, but islets were recovered from damage in the RR group. These results suggest that administration of Rhemanniae Radix extract to the hyperglycemic mice prevent from the damage induced by STZ.

본 연구는 streptozotocin(STZ)을 투여하여 고혈당이 유발된 생쥐(UM군)에 생지황(Rhemanniae Radix) 전탕액의 투여(5.0 mL/kg/day, RR군)효과를 밝히기 위하여 수행하였다. STZ로 유발된 생쥐에 생지황 전탕액을 6주 동안 구강 투여한 후 혈당과 당내성 검사 및 췌장섬의 면역조직화학 검사를 하였다. 혈당수준은 RH군이 HM군에 비하여 2, 3, 5, 6주에서 유의성 있게 낮았으며, 당내성 검사 또한 RR군이 HM군에 비하여 우수한 결과를 보여 주었다. 6주 후 insulin-양성 5-세포들과 insulin-like growth factor-II 양성 물질들은 HM군에 비하여 RR군에서는 보다 높게 나타났다. HM군에서는 apoptosis 면역반응성 과립들이 췌장섬 전반에 걸쳐 관찰되었으나, RR군에서는 일부 세포들의 핵에서 면역반응성을 보여주었다. HM군에서는 대부분 췌장섬들이 파괴되어 소수 관찰되었으나 RR군은 다수 관찰되었다. 이와 같은 결과로 보아 생지황 전탕액은 STZ로 유발된 손상으로부터 췌장섬을 회복시키는 효과가 있는 것으로 사료된다.

Keywords

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