铁在体内参与多种代谢功能 ,铁的吸收和排泄必须保持平衡 ,食物中的铁主要在十二指肠和空肠上端粘膜吸收 ,而后转运到血浆进一步运输到贮存器官和被利用部位 ,本文就近年来对肠粘膜细胞铁吸收和转运机制的研究进展作一综述 Iron participates in a variety of metabolic functions in the body, iron absorption and excretion must be balanced, the iron in the food is primarily absorbed in the mucosa of the upper duodenum and jejunum, and then transported to the plasma for further transport to storage organs and sites for utilization. In recent years, the research progress of intestinal mucosal iron absorption and transport mechanism is reviewed