The Anemia of Infection : XIX. Studies on Free Erythrocyte Coproporphyrin and Protoporphyrin

1. The amount of free coproporphyrin and protoporphyrin its the erythrocytes of twenty normal male subjects was found to be 0.76 ± 0.26 and 31.3 ± 11.9 µg./100 ml. of packed RBC, respectively. In ten normal female subjects the values were 0.71 ± 0.23 and 44.6 ± 19.6 µg./100 ml. of packed RBC, respectively.

2. In eighteen male patients with chronic infection, mean values of 1.53 ± 0.61 µg./100 ml. of packed RBC for free erythrocyte coproporphyrin and 181.2 ± 90.6 µg./100 ml. of packed RBC for free erythrocyte protoporphyrin were found.