RUNX1 and Miyoshi myopathy: Similarly, peripheral blood analysis revealed no marked differences in RUNX1 expression across MM stages (Figure 4F), with MFI values of stage 0 (512 ± 170), stage 1 (370 ± 33), stage 2 (338 ± 45), and stage 3 (413 ± 51), but relatively higher versus controls (286 ± 17).