MPO and acute myeloid leukemia: Myeloperoxidase is a hallmark enzyme of acute myeloid lineage and the clinical relevance of the circulating MPO level in acute myeloid leukemia (AML) patients showed higher plasma MPO levels (range 1.0–9514 ng/mL) as compared to control subjects (range 3.5–20.6 ng/mL) [193].