The CML immunoreactivity (grade 2) had a statistically significantly higher NT-proBNP values in autopsy blood samples than grade 0 and 1 (122 ± 37 pg/mL for CML 0 cases, 268 ± 67 pg/mL for CML 1 cases, and 3346 ± 634 pg/mL for CML2 cases, Fig. 2). This evidence concerns the gene NPPB and chronic myelogenous leukemia, BCR-ABL1 positive.