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BioMed Research International
Volume 2015, Article ID 423869, 6 pages
http://dx.doi.org/10.1155/2015/423869
Research Article

Osteoprotective Effect of Cordycepin on Estrogen Deficiency-Induced Osteoporosis In Vitro and In Vivo

1Department of Orthopedics, Xi Jing Hospital, The Fourth Military Medical University, Xi’an 710032, China
2Shandong University of Traditional Chinese Medicine, Jinan 250355, China
3The Surgery Department of 520th Hospital of PLA, Mianyang 621000, China

Received 16 December 2014; Accepted 24 January 2015

Academic Editor: Thomas G. Mitchell

Copyright © 2015 Da-wei Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study was to verify the effect of cordycepin on ovariectomized osteopenic rats. Fifty Wistar female rats used were divided into 5 groups: (1) sham-operation rats (control), (2) ovariectomized (OVX) rats with osteopenia, and (3) OVX’d rats with osteopenia treated with cordycepin (5 mg, 10 mg, and 20 mg) for 8 weeks. After the rats were treated orally with cordycepin, serum alkaline phosphatase (ALP), tartrate resistant acid phosphatase (TRAP), serum osteocalcin (OC), homocysteine (HCY) , C-terminal crosslinked telopeptides of collagen type I (CTX) level, and oxidative stress were examined, respectively. The femoral neck was used for mechanical compression testing. At the same time, we further investigated the effect of cordycepin in vitro assay. The beneficial effects of cordycepin on improvement of osteoporosis in rats were attributable mainly to decrease ALP activity, TRAP activity, and CTX level. At the same time, cordycepin also increases the OC level in ovariectomized osteopenic rats. The histological examination clearly showed that dietary cordycepin can prevent bone loss caused by estrogen deficiency. These experimental results suggest that complement cordycepin is protective after ovariectomized osteopenic in specific way.