The biologic effects of magnoliae cortex extract and safflower seed (Carthamus tinctorius $Linn{\acute{e}}$) extract mixture on PDL cells and osteoblasts

후박 및 홍화종자 추출혼합물이 치주인대세포 및 골아세포의 활성도 및 백서의 두개골재생에 미치는 영향

  • Shin, Seung-Yun (Department of Periodontology, College of Dentistry, Seoul National University) ;
  • Lee, Yong-Moo (Department of Periodontology, College of Dentistry, Seoul National University) ;
  • Ku, Young (Department of Periodontology, College of Dentistry, Seoul National University) ;
  • Bae, Ki-Hwan (College of Pharmacy, Chungnam National University) ;
  • Chung, Chong-Pyoung (Department of Periodontology, College of Dentistry, Seoul National University)
  • 신승윤 (서울대학교 치과대학 치주과학교실) ;
  • 이용무 (서울대학교 치과대학 치주과학교실) ;
  • 구영 (서울대학교 치과대학 치주과학교실) ;
  • 배기환 (충남대학교 약학대학) ;
  • 정종평 (서울대학교 치과대학 치주과학교실)
  • Published : 1998.12.31

Abstract

Magnoliae cortex has been used as a drug for treatment of fractures in Chinese medicine and safflower(Carthamus tinctorius $Linn{\acute{e}}$) has been traditionally used for treatment of blood stasis. The purpose of present study was to examine the biologic effects of magnoliae cortex extract and safflower extract mixture(MSM) on human periodontal ligament cells and fetal rat calvarial osteoblasts and on healing of rat calvarial defects. The ethanolic extracts of magnoliae cortex(MCE), safflower seed(SSE), Zea May L(ZML) were prepared as positive control group. MSM mixed to the ratios of 1 : 1, 1 : 2, 1 : 5 and 1 : 10 were used as test group. The effects of each agents on the growth and survival, ALPase activity, cell proliferation and tissue regenerative effect of each extracts was evaluated by histomorphometric measuring of newly formed bone on the 8 mm defect in rat calvaria after oral administration of 2 ratio groups(1 : 5 and 1 : 10) at 3 different doses (0.1, 0.25 and 0.5g/kg per day). MSM stimulated the growth and survival rate of osteoblasts and PDL cells more than any other agents. The growth and survival rate were increased as the proportion of safflower seed extract was increased. MCE, SSE, ZML stimulated the ALPase activity of osteoblast and PDL cell in comparison to the negative control group. But all groups of MSM regardless of ratio of safflower seed extract stimulated the ALPase activity than any other agent. The ALPase activity was also increased as the proportion of safflower seed extract was increased. Although MCE, SSE, ZML stimulated the proliferation of osteoblasts. 1 : 5 and 1 : 10 ratio MSM showed significant increase in stimulation of proliferation of osteoblasts. No agent significantly increased proliferation of PDL cells. Significant new bone formation were seen where 1 : 5 ratio, 0.5g/kg group and 1 : 10 ratio, 0.25, 0.5g/kg groups were used. These results show that magnoliae cortex extract and safflower seed extract mixture can potentially increase bone regeneration ability.

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