IL17A and myelodysplastic syndrome: Consistent with levels of IL-17, levels of IL-17 mRNA in L-MDS, HC, and H-MDS group were 11.81 ± 4.77, 7.46 ± 3.05, and 4.72 ± 2.91 in PB and 10.66 ± 3.18, 8.78 ± 2.84, and 5.00 ± 2.76 in BM; P values were all <0.05 between any two groups (Figures 5(a)-5(b)).