IL6 and acute myeloid leukemia: Based on all the previous studies' findings, the relationship between (IL-6 and ADAMTS13), (IL-6 and vitamin D), the role of each of them in AML (pathogenesis and disease course), and the previous clinical trials for using vitamin D in treating AML; we investigated the effect of correcting serum vitamin D via vitamin D supplementation, and its effect on plasma IL-6 level and ADAMTS13 level along with the induction chemotherapy for AML patients.