The association between Xeroderma Pigmentosum DNA repair genes ( XPA rs1800975, XPC rs2228000, XPD rs1799793 and XPF rs1800067) polymorphisms and myelodysplastic syndrome (MDS) have not been reported. To assess the functional role between these polymorphisms and MDS, we evaluated 189 sam- ples stratified in two groups: 95 bone marrow samples from MDS patients and 94 from healthy elderly volunteers used as contr...