Effect of Myelopoietin (MPO) administration on recovery of peripheral blood (A) neutrophils (ANC), (B) platelets (PLT), (C) red blood cells (RBC), and (D) nucleated red blood cells (NRBC) in 600 cGy total body x-irradiated (250 kVp) animals.

Animals were administered MPO (QD, 200 μg/kg/d, n = 5) or control protein (n = 11) as described in Methods. Average whole blood transfusions per animal: Control = 2.6, MPO = 0. Data represents mean values ± SEM.