We found that the PARP1 mRNA levels showed a statistically significant correlation to the type of MDS, according to the 2008 and 2016 WHO classification (Independent Samples Kruskal–Wallis Test, two-sided P=0.005 for both classifications, detailed results in Table 1, box plot in Figure 1a). Here, PARP1 is linked to myelodysplastic syndrome.