Streptozotocin 유도 당뇨 흰쥐에서 복령약침의 ${\beta}$-cell 손상 방지 효과

Poria cocos Herbal Acupuncture Prevents ${\beta}$-cell Damage on Streptozotocin-induced Diabetic Rat

  • 서창완 (경희대학교 한의과대학 침구학교실) ;
  • 서병관 (경희대학교 한의과대학 침구학교실) ;
  • 김종인 (한국한의학연구원) ;
  • 강성길 (경희대학교 한의과대학 침구학교실)
  • Seo, Chang-Wan (Department of Acupuncture & Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Seo, Byung-Kwan (Department of Acupuncture & Moxibustion, College of Oriental Medicine, Kyung Hee University) ;
  • Kim, Jong-In (Korea Institute of Oriental Medicine) ;
  • Kang, Sung-Keel (Department of Acupuncture & Moxibustion, College of Oriental Medicine, Kyung Hee University)
  • 발행 : 2009.10.20

초록

목적 : 정상 췌장조직 속에 존재하는 췌장 소도세포들을 파괴시켜 고혈당을 유발시키고 복령 물추출물로 약침을 시술하여 췌장 조직의 보호효과와 항당뇨 효과를 살펴보고자 실험을 진행하였다. 방법 : 5주령의 Sprague-Dawley rat을 통제된 실험실 환경에 적응시킨 후 1주일간 복령약침액(125mg/kg 복령약침군 및 250mg/kg 복령약침군)을 좌우 신수($BL_{23}$)에 교대로 각각 피하에 약침하고 streptozotocin을 복강내 주사하여 3일 후 diabetes mellitus 유도 정도를 평가하고 2주일간 추가 치료를 진행 한 뒤, 혈액지표(plasma glucose, insulin, TG, TC, NEFA, sGOT, sGPT, ALP, BUN, CRE)와 췌장조직의 형태학적 분석 및 염증 관련 단백질의 발현을 평가하였다. 결과 : 복령약침군(125mg/kg 복령약침군 및 250mg/kg 복령약침군)에서 insulin과 triglyceride, NEFA 수치가 유의하게 감소하였으며 간 기능 효소수치인 sGOT가 감소하는 경향을 나타내었으나, 신장기능지수는 유의한 감소를 나타내지 않았다. 특히 250mg/kg 복령약침군에서 streptozotocin 투여로 인한 pancreatic islet의 형태학적 변성이 현저하게 개선되었다. Western blot 결과 JNK-2, P-JNK-2, P-JNK-1, ERK1/2 및 phosphorylated ERK1의 발현이 감소되었다. 결론 : 복령약침이 고인슐린혈증과 고지질질혈증을 개선시키고 streptozotocin에 의한 pancreatic islet의 파괴를 억제하며, 이는 inflammation-related transcription factor인 NF-kB와도 관련이 있는 것으로 판단된다. 향후 복령약침의 항당뇨 효과와 그 기전에 관한 추가 연구가 필요할 것으로 사료된다

키워드

참고문헌

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