Aqueous ginseng extract has a preventive role in RANKL-induced osteoclast differentiation and estrogen deficiency-induced osteoporosis

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Title
Aqueous ginseng extract has a preventive role in RANKL-induced osteoclast differentiation and estrogen deficiency-induced osteoporosis
Author(s)
H Y Lee; S H Park; S W Chae; Nak Kyun Soung; Mi Jin Oh; J S Kim; Y O Kim; H J Chae
Bibliographic Citation
Journal of Functional Foods, vol. 13, pp. 192-203
Publication Year
2015
Abstract
Ginseng, a medicinal herb, has a large number of active ingredients including steroidal saponins, commonly known as ginsenosides, which have biological functions including anti-osteoporotic effects. In this study, six ginsenosides were identified in ginseng. Of these saponins, five ginsenosides (Rb1, Rg1, Rc, Re, and Rf) inhibited osteoclast formation, RANKL-induced tartrate-resistance acid phosphate (TRAP) activity, and formation of multinucleated osteoclasts in vitro. Consistently, an aqueous ginseng extract significantly inhibited osteoclast differentiation and also regulated expression of calcitonin receptor (Cal-R) and estrogen receptor-α (ER-α) mRNAs. In vivo, ginseng treatment was shown to have an anti-osteoporotic effect in ovariectomized (OVX) rats. Ginseng treatment delayed the increase in body weight associated with ovariectomy, affected bone structure and biochemical properties, and helped regulate bone mineral density and content. The ginseng-treated OVX group also showed decreased osteoclast number, inhibited osteoclast activity, and reversal of the reduced serum estradiol level. This study suggests that ginseng prevents postmenopausal bone loss by inhibiting osteoclast differentiation, a process controlled by estrogen.
Keyword
Bone mineral densityGinsengOsteoclast differentiationOvariectomy
ISSN
1756-4646
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.jff.2014.12.039
Type
Article
Appears in Collections:
Ochang Branch Institute > Chemical Biology Research Center > 1. Journal Articles
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