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Updated: May 6, 2026

Author Spotlight: Developing a Rat Model for Weight-Bearing Intervention to Investigate Osteonecrosis of the Femoral Head
Published on: September 27, 2024
[Effect of osthole on bone metabolism in rat femoral tissues in vitro]
Jian Zhou1, Bao-feng Ge, Ping Zhen
1Institute of Orthopaedics, Lanzhou General Hospital of Lanzhou Military Area Command of Chinese PLA, Lanzhou 730050, China.
Objective:
To investigate the effect of osthole on bone metabolism in rat femoral tissues in vitro.
Methods:
The rat femoral tissues were isolated in vitro. The optimal concentrations of ostehole (1×10(-5) mol/L) and estradiol (1×10(-8) mol/L) (the positive control) were selected by alkaline phosphatase activity (ALP). The ALP and calcium levels were detected by commmerical regents, and the expressions of osteoprotegerin, receptor activator of nuclear factor-κB ligand, runx-related gene 2, and bone morphogenetic protein-2 mRNA were determined by real-time reverse transcription-polymerase chain reaction.
Result:
The osthole (1×10(-5) mol/L) significantly increased the activity of ALP, calcium level as well as the expressions of osteoprotegerin, receptor activator of nuclear factor-κB ligand, runx-related gene-2 and bone morphogenetic protein-2 mRNA in rat femoral tissues in vitro.
Conclusion:
Osthole can improve calcium level and ALP activity and regulate the bone metabolism-related genes in rat femoral tissues.
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