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Positive Effects of Qing’e Pill (青娥丸) on Trabecular Microarchitecture and its Mechanical Properties in Osteopenic Ovariectomised Mice

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Abstract

Objective

To investigate the impact of Qing’e Pill (青娥丸, QEP) on the cancellous bone microstructure and its effect on the level of β-catenin in a mouse model of postmenopausal osteoporosis.

Methods

Ninety-six 8-week-old specific pathogen free C57BL/6 mice were randomly divided into 4 groups (24/group): sham, ovariectomised osteoporosis model, oestradiol-treated, and QEP-treated groups. Three months after surgery, the third lumbar vertebra and left femur of the animals were dissected and scanned using micro-computed tomography (micro-CT) to acquire three-dimensional (3D) parameters of their cancellous bone microstructure. The impact of ovariectomy, the effect of oestradiol and QEP intervention on cancellous bone microstructure, and the expression of β-catenin were evaluated.

Results

The oestradioland the QEP-treated groups exhibited a significant increase in the bone volume fraction, trabecular number, trabecular thickneßs, bone surface to bone volume ratio (BS/BV), and β-catenin expression compared with those of the model group (P <0.05). In contrast, the structure model index, trabecular separation, and BS/BV were significantly decreased compared with those of the ovariectomised osteoporosis model group (P <0.05). No differences were observed in the above parameters between animals of the QEP- and oestradiol-treated groups.

Conclusions

The increased β-catenin expression may be the mechanism underlying QEP’s improvement of the cancellous bone microstructure in ovariectomised mice. Our findings provide a scientific rationale for using QEP as a dietary supplement to prevent bone loss in postmenopausal women.

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Acknowledgements

The authors would like to thank XIA Xue for his expertise and assistance in performing the blood collection, and WANG Quan-shen for his technical assistance, both from Union Hospital of Tongji Medical College, Huazhong University of Science and Technology.

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Correspondence to Yan-ping Yang.

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Supported by the Innovation Fund of Huazhong University of Science and Technology (No. 2013QN235) and the National Natural Science Foundation of China (Nos. 81403257, 81273907, 81102692, 81072493)

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Shuai, B., Zhu, R., Yang, Yp. et al. Positive Effects of Qing’e Pill (青娥丸) on Trabecular Microarchitecture and its Mechanical Properties in Osteopenic Ovariectomised Mice. Chin. J. Integr. Med. 25, 270–277 (2019). https://doi.org/10.1007/s11655-016-2604-0

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