Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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The Effect of Herbal Formulation (OPB), Rehmannia Glutinosa Libosch and Eleutherococcus Senticosus Max Extracts on Bone Density and Bone Biochemical Marker in Ovariectomized Rats

숙지황과 가시오가피 복합추출물(OPB)이 난소절제 흰쥐의 골밀도 및 골대사에 미치는 영향

  • Kim, Jung-Keun (Dept. of Pharmacology analysis, Research Institute, Oscotec Inc.) ;
  • Kim, Se-Won (Dept. of Pharmacology analysis, Research Institute, Oscotec Inc.) ;
  • Lee, Byung-Eui (Dept. of Herbal medicine, Research Institute, Oscotec Inc.) ;
  • Hwang, Hyeon-Hwan (Dept. of Safety and Toxicology, Research Institute, Oscotec. Inc.) ;
  • Kwon, Jong-Seok (Dept. of Pharmacology analysis, Research Institute, Oscotec Inc.) ;
  • Ko, Seon-Yle (Dept. of Pharmacology analysis, Research Institute, Oscotec Inc.)
  • 김정근 ((주)오스코텍 약효검색팀) ;
  • 김세원 ((주)오스코텍 약효검색팀) ;
  • 이병의 ((주)오스코텍 천연물의약팀) ;
  • 황현환 ((주)오스코텍 약동학팀) ;
  • 권종석 ((주)오스코텍 약효검색팀) ;
  • 고선일 ((주)오스코텍 약효검색팀)
  • Published : 2007.03.30
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Abstract

This study was conducted to investigate the preventing effects of OPB (water extracts of Rehmannia glutinosa Libosch and Eleutherococcus senticosus Max) on bone loss in ovariectomized rats. Twenty Sprague Dawley rats of 13 week-old were divided into two groups: control group (ovariectomized, OVX)) and experimental group (OVX + OPB). The preventing effects of OPB on bone loss, OPB were fed with 100 mg OPB/kg body weight from 3 days after ovariectomization. The duration of the treatment period was 8 weeks. All bone mineral density, bone mineral content indices and bone strength indices measured by peripheral quantitative computerized tomography (pQCT) and serum bone marker assessment were carried out at end of experiment. pQCT scanning showed that OVX induced a significant decrease in cancellous bone mineral density in the proximal tibia ($-29.8{\pm}3.0%$). These decreases were significantly prevented by the administration of OPB 100 mg/kg ($-21.4{\pm}2.3%$. p<0.05). Bone strength indices showed significant difference between OVX and OPB treated rats (anti-fracture, anti-twisting, p<0.05). These data suggested that administration of OPB inhibited the loss of bone in OVX rats. CTx level were lower than in the OPB-treated animals compared with OVX. However there was no significant difference between OVX and OPB treated OVX rat. Our results suggest that OPB is effective in preventing the development of bone loss induced by ovariectomy in rats.

본 연구는 숙지황과 가시오가피 복합추출물 (OPB)이 난소절제 흰쥐의 골밀도 및 골대사 변화에 미치는 영향을 관찰하기 위하여 수행하였다. 13주된 20마리의 Sprague-Dawley 암컷 흰쥐를 대조군과 실험군으로 나누었고, OPB의 골밀도 및 골대사 변화에 대한 효과를 관찰하기 위하여 난소절제 후 3일 후부터 OPB를 100 mg/kg씩 8주 동안 경구투여 하였다. pQCT 방식으로 골밀도, 골함유량, 골강도를 측정하였고, 혈청 중 CTx (C-telopeptide of type I collagen)의 변화를 관찰하였다. 난소절제 후 대조군의 골밀도는 $-29.8{\pm}3.0%$로 현저히 감소하였으며, 이러한 감소는 OPB의 투여에 의해 $-21.4{\pm}2.3%$로 억제되었다. 골강도의 변화에서는 anti-fracture 값과 anti-twisting 값이 대조군에 비해 OPB 처리군에서 유의성 있는 차이를 나타냈다. 또한 혈청 중 골흡수 지표인 CTx 농도는 대조군에 비해 OPB 처리군에서 낮게 나타났다. 이상의 결과로 숙지황과 가시오가피의 복합 추출물인 OPB가 난소를 절제한 흰쥐에서 골 소실을 억제하므로 임상에서 난소절제 후 또는 폐경 후 골다공증의 개선제로 이용될 수 있으리라 여겨진다.

Keywords

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