Eckhert C D, Sloan M V, Duncan J R, Hurley L S
Science. 1977 Feb 25;195(4280):789-90. doi: 10.1126/science.836589.
Gel chromatography indicated that most of the zinc in cow's milk was associated with high-molecular-weight fractions, whereas zinc in human milk was associated with low-molecular-weight fractions. A species difference in zinc-binding ligands may explain why symptoms of the genetic disorder of zinc metabolism, acrodermatitis enteropathica, can be alleviated by feeding human but not cow's milk.
凝胶色谱分析表明，牛奶中的大部分锌与高分子量组分相关，而人乳中的锌与低分子量组分相关。锌结合配体的物种差异可能解释了为什么锌代谢遗传疾病——肠病性肢端皮炎的症状可以通过喂食人乳而非牛奶来缓解。
