Fig. 4.
MDR1 gene expression in NPB, AML with CR, and AML with refractory patients. Relative expression of MDR1 gene was determined by quantitative RT-PCR as described in Materials and Methods, dividing each value by the average of 10 NPB samples after normalizing for the amount of β2-microglobulin mRNA. Average values of relative MDR1 expression for CR and refractory AML are indicated.