Compared to the IFN-γ level in PB from ITP patients, the paired BM IFN-γ level was remarkably increased (3.98 ± 1.65 vs. 5.40 ± 2.50 pg/ml, P < 0.001; Figure 3J). The gene discussed is IFNG; the disease is autoimmune thrombocytopenic purpura.