Objective To detect the expression level of growth differentiation factor 11(GDF11)in patients with myelodysplastic syndrome(MDS),and to evaluate the relationship between GDF11 level and erythropoiesis functions.Methods A total of 44 MDS patients(18 low-risk group patients and 26 high-risk group patients)in the Department of Hematology in Tianjin Medical University Objective To detect the expression level of growth differentiation factor 11 (GDF11) in patients with myelodysplastic syndrome (MDS), and to evaluate the relationship between GDF11 level and erythropoiesis functions. Methods A total of 44 MDS patients (18 low-risk group patients and 26 high-risk group patients) in the Department of Hematology in Tianjin Medical University