Parathyroid hormone plays an important role in calcium homeostasis.PTH is generally considered as a catabolic agent that promotes bone resorption.

• 摘要副甲状腺素是调节血钙平衡的重要荷尔蒙，一直以来医学上认为此荷尔蒙为了增加血钙浓度而分解骨组织，造成骨的异化代谢作用。