本文报告42例各期铁缺乏症儿童血清苯丙氨酸、酪氨酸及维生素A、E浓度在治疗前后的变化,并与20名健康儿童相比较。结果为:缺铁儿童血清苯丙氨酸含量增高,酪氨酸降低,维生素A、E水平亦减低。口服硫酸亚铁治疗一月后,随着铁实验指标的恢复正常,血清苯丙氨酸浓度下降,酪氨酸、维生素A、E上升,均达到正常范围。作者对此种变化的发病机理及临床意义略加讨论。 This article reports 42 cases of iron deficiency in children with serum phenylalanine, tyrosine and vitamin A, E concentrations before and after treatment changes, and compared with 20 healthy children. The results showed that: children with iron deficiency increased serum phenylalanine, tyrosine decreased, vitamin A, E levels also decreased. One month after oral administration of ferrous sulphate, with the normalization of iron experimental index, serum phenylalanine concentration decreased, tyrosine, vitamin A, E increased, reaching the normal range. The author of this change in the pathogenesis and clinical significance of a little discussion.