作者: Baruch Frenkel , Albert Hong , Sanjeev K. Baniwal , Gerhard A. Coetzee , Claes Ohlsson
DOI: 10.1002/JCP.22159
关键词: Endocrinology 、 RUNX2 、 Bone resorption 、 Bone remodeling 、 Osteoclast 、 Osteoporosis 、 Internal medicine 、 Estrogen 、 RANKL 、 Biology 、 Fas ligand
摘要: Recent reports reveal increasing complexity of mechanisms underlying the bone sparing effects sex steroids. This review focuses on by which steroids attenuate endocortical and trabecular adult turnover, perhaps their most important property as mass regulators. Clearly, estrogen withdrawal increases osteoclast number resorption; however, open questions are extent to osteoblasts precursors involved, relative contributions RANK/RANKL/OPG system, Fas ligand Runx2. In addition reviewing these aspects action, we also discuss proskeletal androgens male skeleton, including aromatization estrogens male-specific mechanisms. Detailed understanding skeletal site- gender-dependent protect skeleton will provide foundation for improved risk assessment, prevention management osteoporosis. J. Cell. Physiol. 224: 305–310, 2010. © 2010 Wiley-Liss, Inc.