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BMC Musculoskeletal Disorders
Published in: BMC Musculoskeletal Disorders 1/2017

Open Access 01-12-2017 | Research article

Intermittent parathyroid hormone improve bone microarchitecture of the mandible and femoral head in ovariectomized rats

Authors: Ying-Ju Chen, Shun-Ping Wang, Fu-Chou Cheng, Pei-Yu Hsu, Yu-Fen Li, Jay Wu, Heng-Li Huang, Ming-Tzu Tsai, Jui-Ting Hsu

Published in: BMC Musculoskeletal Disorders | Issue 1/2017

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Abstract

Background

Intermittent parathyroid hormone (PTH) can be used to treat osteoporosis of the spine and hip. However, whether it can be used to treat osteoporosis of the mandible is unclear. The purpose of this study was to explore the influence of applying intermittent PTH to ovariectomized rats on the trabecular bone microarchitecture of the mandible and femoral head.

Methods

Eighteen female rats were divided into three groups: the healthy group, ovariectomized (OVX) group, and OVX + PTH group. The OVX group and OVX + PTH group had an OVX at 8 weeks of age. The OVX + PTH group received intermittent PTH therapy for 12 weeks. The mandibles and femurs of all rats were removed at 20 weeks and were then scanned using microcomputed tomography (micro-CT).

Results

From the micro-CT analysis, the trabecular bone microarchitecture of the mandible and femoral head are offered as follows: (1) The bone volume fraction and trabecular thickness in the OVX group were lower than those in the healthy group. (2) The bone volume fraction and trabecular thickness in the OVX + PTH group approximated those in the healthy group.

Conclusion

The conclusions of this study regarding the trabecular bone microarchitecture of the mandible and femoral head are offered as follows: (1) The BV/TV and TbTh in the OVX group were lower than those in the healthy group. (2) The BV/TV and TbTh in the OVX + PTH group approximated those in the healthy group, therefore, intermittent PTH displayed high efficacy for treating femoral or mandibular deterioration of bone microstructure resulting from loss of ovarian function. Osteoporosis of the femur or mandible in the rats was ameliorated by intermittent PTH therapy.
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Metadata
Title
Intermittent parathyroid hormone improve bone microarchitecture of the mandible and femoral head in ovariectomized rats
Authors
Ying-Ju Chen
Shun-Ping Wang
Fu-Chou Cheng
Pei-Yu Hsu
Yu-Fen Li
Jay Wu
Heng-Li Huang
Ming-Tzu Tsai
Jui-Ting Hsu
Publication date
01-12-2017
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2017
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-017-1530-4

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