Additionally, Kv1.3 mRNA expression within MS sub-groups was slightly higher in SPMS patients (1.36 ± 0.19, n = 16) compared to those with RRMS (1.28 ± 0.18, n = 18), but the difference did not reach statistical significance (Figure 4B1). This evidence concerns the gene KCNA3 and myeloid sarcoma.