雄激素对骨的作用

Effects of Androgen on the Bone

雄激素是由19个碳原子组成的同化激素,除参与生殖作用外,还影响机体的其他代谢过程,如骨代谢。雄激素在骨的生长发育和维持内环境的稳定中有重要作用。经研究证明骨细胞表面有雄激素受体,表明雄激素对骨细胞的作用是直接的;同时,雄激素经芳香化酶转化为雌激素也是一条重要的调节途径。雄激素在获得骨峰值和维持骨量中起重要作用,并且与年龄相关性骨量丢失的关系相当密切。

Androgen is an anabolic steroid composed of 19 carbon atoms. As a sex hormone, it has far-ranging effects on many sites within the body, including bone metabolism. Androgen has important effects on bone development and homeostasis. It has been proved that the androgen receptor(AR) expresses in bone cells, which indicates that androgen has direct effects on bone cells. Furthermore there is convincing evidence that aromatization to estrogen is an important way of mediating the action of testosterone. Androgen not only plays an important role in gaining the peak bone mass and maintaining the bone mass, but also has a close correlation with aging-related bone loss.