Chinese Journal of Integrative Medicine

, Volume 18, Issue 4, pp 276–282 | Cite as

In vitro and in vivo effects of puerarin on promotion of osteoblast bone formation

  • Ming-yu Zhang (张明宇)
  • Hui Qiang (强 辉)
  • Hua-qing Yang (杨华清)
  • Xiao-qian Dang (党晓谦)
  • Kun-zheng Wang (王坤正)
Original Article

Abstract

Objective

To assess the effect of puerarin, a natural flavonoid found in Chinese Pueraria Lobata (Wild.) Ohwi, on promotion of new bone formation.

Methods

Osteoblasts isolated from calvarial of newborn rats were cultured in vitro in the presence of puerarin at various concentrations. The viability of osteoblasts and alkaline phosphotase activity and mineral node formation were determined. In addition, osteoblasts seeded in the β-tricaclium phosphate scalfolds as bone substitute were implanted in rat dorsal muscles. Half -of the recipient rats received intramuscular injection of puerarin at 10 mg/(kg·d) for 7 days. Osteogenesis was analyzed by examining the histology after 4 weeks of implantation.

Results

The viability of osteoblasts treated with puerarin at either 40 or 80 μmol/L was significantly higher than that of the control (P<0.05 and P<0.01, respectively). Alkaline phosphatase and mineral modules were significantly increased in osteoblasts cultured with puerarin at 40 or 80 mol/L when compared with that of the untreated cells. The puerarin-treated rats had a higher rate of bone formation in the osteoblast implants than the control rats (6.35% vs. 1.32%, respectively, P<0.05).

Conclusion

Puerarin was able to affect osteoblast proliferation and differentiation, and promote the new bone formation in osteoblast implants.

Keywords

puerarin osteoblast β-tricalcium phosphate new bone formation 

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Copyright information

© Chinese Association of the Integration of Traditional and Western Medicine and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ming-yu Zhang (张明宇)
    • 1
  • Hui Qiang (强 辉)
    • 2
  • Hua-qing Yang (杨华清)
    • 3
  • Xiao-qian Dang (党晓谦)
    • 4
  • Kun-zheng Wang (王坤正)
    • 4
  1. 1.Department of Sport Injurythe Affiliated Red Cross Hospital of Medical College of Xi’an Jiaotong UniversityXi’anChina
  2. 2.Department of OrthopedicsShaanxi Provincial People’s HospitalXi’anChina
  3. 3.Department of Orthopedicsthe Second Hospital of Tsinghua UniversityBeijingChina
  4. 4.Department of Orthopedicsthe Second Affiliated Hospital of Medical College of Xi’an Jiaotong UniversityXi’anChina

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