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  • Title: [Zinc protoporphyrin (ZPP) in diagnosis of anemia].
    Author: Paszkowska M, Jezyńska A, Król M, Rokicka-Piotrowicz M, Kuratowska Z.
    Journal: Pol Arch Med Wewn; 1997 Dec; 98(12):520-6. PubMed ID: 9640080.
    Abstract:
    In iron deficiency, zinc protoporphyrin (ZPP) is produced instead of heme, and the ZPP concentration in erythrocytes increased (normal value < 2.3 micrograms ZPP/g Hb). The ZPP level and comparison with the other normally used tests in iron deficiency in the group of the patients with iron deficiency, ACD, MDS, AML, plasmocytoma was investigated. The ZPP level was determined by hematofluorometry in samples from 96 patients. Thirty five patients with iron depletion showed decreased both serum ferritin (median 5.9 ng/ml), and hemoglobin level (median 9.8 g/dl) with significantly increased ZPP level (median 8.5 micrograms/gHb). An increased level of ZPP (median 3.95 micrograms/gHb) with normal level of ferritin (median 24 ng/ml) and iron (median 50 (g/dl) in the serum of patients with ACD was determined. Measurement of ZPP level in the combination with ferritin and peripheral blood morphology allows to classify the degree of iron deficiency. The ZPP levels higher than 4.55 micrograms/gHb confirms iron deficiency in the group of anaemic patients.
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