降钙素一种缩氨酸荷尔蒙，由人体内的甲状腺产生。在不增加钙含量的情况下‖，可降低血中钙和磷酸盐的含量 A peptide hormone, produced by the thyroid gland in human beings, that lowers plasma calcium and phosphate levels without augmenting calcium accretion.
医生告诉他他的病是由荷尔蒙失衡引起的〓。 The doctor told him that his disease was caused by unbalanced hormone.
