铁是人体必需的微量元素。铁蛋白(Ferritin)是体内一种贮存铁的可溶性组织蛋白。正常情况下血清所含微量的铁蛋白,反映了铁的贮藏情况,而人体铁的平衡状态主要通过吸收铁的多少来调节,过多的铁不能通过增加排泄来保持平衡。肝脏在铁代谢中有重要作用,它是铁的贮存器官。肝脏是合成载铁蛋白的主要场所,也能合成铁蛋白,而且在维持血液中铁蛋白的浓度方面有重要作用。近年来,应用敏感的RIA、ELISA等方法可检测微量铁蛋白,发现在 Iron is the body’s essential trace elements. Ferritin is an iron soluble tissue protein in the body. Under normal circumstances serum trace ferritin, reflecting the iron storage, and the balance of human iron is mainly through the absorption of iron to adjust, too much iron can not be increased by increasing excretion to maintain balance. The liver plays an important role in iron metabolism, which is the storage organ of iron. The liver is the primary site for the synthesis of carrier proteins and is also capable of synthesizing ferritin, and plays an important role in maintaining the concentration of ferritin in the blood. In recent years, the application of sensitive RIA, ELISA and other methods can detect trace ferritin, found in