Evaluation of the Antiosteoporotic Potential of Cimicifuga heracleifolia in Female Mice

[摘要]：Cimicifugae rhizoma might be protective against osteoporosis. This study investigated the effects of Cimicifuga heracleifolia (CH), an Asian species of Cimicifugae rhizome, on bone loss in ovariectomized (OVX) mice. The C3H/HeN mice were divided into sham and OVX groups. The OVX mice were treated with vehicle, 17 beta-estradiol (E2) or CH for 6?weeks. Serum calcium, phosphorus, E2 concentration and serum alkaline phosphatase (ALP) activity were measured. Tibiae and femora were analysed using microcomputed tomography. The biomechanical property and osteoclast surface level were measured. Treatment with CH (i.p., 50?mg/kg of body weight, every other day) prevented the OVX-induced increase in body weight but did not alter the uterus weight of the OVX mice. Serum ALP levels and osteoclast surface levels in the OVX mice were reduced by treatment with CH. The CH significantly preserved trabecular bone mass, bone volume, trabecular number, trabecular thickness, structure model index and bone mineral density of proximal tibia metaphysis or distal femur metaphysis. However, grip strength, mechanical property and cortical bone architecture did not differ among the experimental groups. The results indicate that the supply of CH can prevent OVX-induced bone loss in mice. Copyright (c) 2011 John Wiley & Sons, Ltd.

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