Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6576
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dc.contributorDepartment of Applied Biology and Chemical Technology-
dc.creatorXie, F-
dc.creatorWu, CF-
dc.creatorLai, WP-
dc.creatorYang, XJ-
dc.creatorCheung, PY-
dc.creatorYao, XS-
dc.creatorLeung, PC-
dc.creatorWong, MS-
dc.date.accessioned2014-12-11T08:22:46Z-
dc.date.available2014-12-11T08:22:46Z-
dc.identifier.issn1741-427X-
dc.identifier.urihttp://hdl.handle.net/10397/6576-
dc.language.isoenen_US
dc.publisherHindawi Publishing Corporationen_US
dc.rightsCopyright © 2005 Fang Xie 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.en_US
dc.rights©The Author (2005). Published by Oxford University Press. All rights reserved.en_US
dc.rightsThe online version of this article has been published under an open access model. Users are entitled to use, reproduce, disseminate, or display the open access version of this article for non-commercial purposes provided that: the original authorship is properly and fully attributed; the Journal and Oxford University Press are attributed as the original place of publication with the correct citation details given; if an article is subsequently reproduced or disseminated not in its entirety but only in part or as a derivative work this must be clearly indicated. For commercial re-use, please contact journals.permissions@oupjournals.orgen_US
dc.subjectHerba epimediumen_US
dc.subjectOsteoblast-like UMR 106 cellsen_US
dc.subjectOsteoclastogenesisen_US
dc.subjectOsteoporosisen_US
dc.subjectOvariectomized raten_US
dc.titleThe osteoprotective effect of Herba epimedii (HEP) extract in vivo and in vitroen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage353-
dc.identifier.epage361-
dc.identifier.volume2-
dc.identifier.issue3-
dc.identifier.doi10.1093/ecam/neh101-
dcterms.abstractHerba epimedii (HEP) is one of the most frequently used herbs prescribed for treatment of osteoporosis in China. In the present study, the in vivo effects of HEP extract on bone metabolism were evaluated using 4-month-old ovariectomized (OVX) or sham-operated (Sham) female Sprague-Dawley rats orally administered with HEP extract (110 mg kg⁻¹d⁻¹), 17ß-estrogen (2 mg kg⁻¹d⁻¹) or its vehicle for 3 months. HEP extract significantly decreased urinary calcium excretion, suppressed serum alkaline phosphatase (ALP) activity and urinary deoxypyridinoline levels in OVX rats (P < 0.05 versus vehicle-treated OVX rats). Histomorphometric analysis indicated that HEP extract could prevent OVX-induced bone loss by increasing tibial trabecular bone area and decreasing trabecular separation in OVX rats (P < 0.05 versus vehicle-treated OVX group). The in vitro effects of HEP extract were also studied using rat osteoblast-like UMR 106 cells. HEP extract significantly stimulated cell proliferation in a dose-dependent manner (P < 0.01 versus vehicle-treated) and increased ALP activity at 200 μgml⁻¹ (P < 0.01 versus vehicle-treated) in UMR 106 cells. It modulated osteoclastogenesis by increasing osteoprotegrin (OPG) mRNA and decreasing receptor activator of NF-κB ligand (RANKL) mRNA expression, resulting in a dose-dependent increase in OPG/RANKL mRNA ratio (P < 0.01 versus vehicle-treated). Taken together, HEP treatment can effectively suppress the OVX-induced increase in bone turnover possibly by both an increase in osteoblastic activities and a decrease in osteoclastogenesis. The present study provides the evidence that HEP can be considered as a complementary and alternative medicine for treatment of post-menopausal osteoporosis.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationEvidence-based complementary and alternative medicine, 2005, v. 2, no. 3, p. 353-361-
dcterms.isPartOfEvidence-based complementary and alternative medicine-
dcterms.issued2005-
dc.identifier.isiWOS:000232027800010-
dc.identifier.scopus2-s2.0-24344504090-
dc.identifier.pmid16136213-
dc.identifier.eissn1741-4288-
dc.identifier.rosgroupidr26382-
dc.description.ros2005-2006 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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