Published in:
Open Access
01-12-2014 | Research article
The effects of Cordyceps sinensis phytoestrogen on estrogen deficiency-induced osteoporosis in Ovariectomized rats
Authors:
Da-wei Zhang, Zhen-lin Wang, Wei Qi, Guang-yue Zhao
Published in:
BMC Complementary Medicine and Therapies
|
Issue 1/2014
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Abstract
Background
Isoflavones are naturally occurring plant chemicals belonging to the “phytoestrogen” class. The aim of the present study was to examine the effects of isoflavones obtained from Cordyceps sinensis (CSIF) on development of estrogen deficiency-induced osteoporosis in ovariectomized rats.
Methods
After the rats were treated orally with CSIF, serum alkaline phosphatase (ALP), tartarate resistant acid phosphatase (TRAP), serum osteocalcin (OC), homocysteine (HCY), C-terminal crosslinked telopeptides of collagen type I (CTX), estradiol and interferonγ (IFN-γ) level were examined. At the same time, the urine calcium, plasma calcium, plasma phosphorus and the mass of uterus, thymus and body were also examined.
Results
The beneficial effects of CSIF on improvement of osteoporosis in rats were attributable mainly to decrease ALP activity, TRAP activity, CTX level and IFN-γ level. At the same time, CSIF also increase the OC and estradiol level in ovariectomized osteopenic rats. The histological examination clearly showed that dietary CSIF can prevent bone loss caused by estrogen deficiency.
Conclusion
The significant estrogenic activity of CSIF demonstrated that CSIF has significant estrogenic effects in OVX rats.