Determination of acidic isoferritin and ferritin in the serum and cancer tissues of lung cancer patients

The serum AIF (acidic isoferritin) and Ferr (ferritin) levels are determined for 16 patients with pulmonary tuberculosis, 24 patients with pneumonia, 34 patients with lung cancer and 95 normal donors with RIA method. The results are 142.2 +- 84.5 μg/l and 104.2 +- 59.3 mg/l, 148.8 +- 79.5 μg/l and 107.3 +- 46.8 mg/l, 260.7 +- 126.3 μg/l and 161.5 +- 75.3 mg/l, and 103.8 +- 54.3 μg/l and 72.1 +- 39.5 mg/l, respectively. The lung cancer patients group has a remarkably high level as compared with other groups (P<0.01), which indicates that the serum AIF and Ferr contents can be used as important indices in lung cancer diagnosis