We assessed a wide panel of the OS markers, such as the levels of thiols, carbonyl groups, and 3-NT (protein oxidation markers), AGE (glycation/oxidation marker), TBARS (lipid peroxidation marker), TAC, SOD, and GST (antioxidant protection markers), and LDH activity (cellular damage marker) in the blood plasma of AML patients, before and 24 h after transfusion of the blood component. The gene discussed is SOD1; the disease is acute myeloid leukemia.