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一些学者报道人类摄入的铜(Cu)是低限甚至不够。Read等观察到,>50%的人补充铁(Fe)为推荐每日供给量(RDA)的5～10倍。Garry等报道人类平均摄入的维生素C接近于10倍的RDA量。本研究是测定Cu不足和适量Cu膳食的鼠,增补Fe和维生素C时的体内Cu状态。材料和方法基本设计的8种实验膳食,有其不同的Cu浓度(不足和适量分别为0.42和5.74μgCu/g食物)、Fe(中等和高浓度分别为38或191μg Fe/g食物)和维生素C(低或高浓度分别为0%或1%),食物中锌(Zn)含量平均为41μgZn/g食物。连续收集粪便5天(16～20天)。实验第21天禁食后12～14
Some scholars have reported that human intake of copper (Cu) is the low limit is not enough. Read et al. Observed that> 50% of people were supplemented with iron (Fe) 5 to 10 times the recommended daily supply (RDA). Garry et al reported that the average human intake of vitamin C is close to 10 times the amount of RDA. This study was conducted to determine Cu status in vivo in mice deficient in Cu and adequate Cu diet supplemented with Fe and vitamin C. Materials and Methods Eight experimental diets were designed with different Cu concentrations (deficient and appropriate amounts of 0.42 and 5.74 μg Cu / g food, respectively), Fe (medium or high concentrations of 38 or 191 μg Fe / g food) and vitamins C (low or high concentrations were 0% or 1% respectively), and the average Zn content in food was 41 μg Zn / g food. Feces are continuously collected for 5 days (16-20 days). The first 21 days after fasting 12 ~ 14