Serum haptoglobin types and leukemia

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Abstract
Haptoglobin types were determined on 211 patients with leukemia of the four most common types: acute lymphatic (ALL), chronic lymphatic (CLL), acute myeloid (AML), and chronic myeloid leukemia (CML). Frequency distributions of the three common Hp types in patients differed significantly from the control population. A significant increase in the relative incidence of Hp 1-1 was observed in patients with ALL, AML, and CML, but not with CLL. A similar trend was consistant in the data from previously published studies for the same three types of leukemia but not for CLL. Our results and the analysis of data from previous studies, suggest an association of Hp type with some leukemias, which is expressed in a consistent elevation of Hp 1-1 type among leukemia patients with ALL, AML, and CML.