Effect of low-dose cyclosporine A (CSA) on D 30 CD4⁺ and CD4⁺FOXP3⁺ T-cell recovery. Patients who received low-dose CSA (▪) were compared to those who did not receive CSA (•) as immunoprophylaxis for the first 4 weeks after SCT. (A) Low-dose CSA had no significant effect on CD4⁺ T-cell and (B) CD4⁺FOXP3⁺ T-cell recovery. (C) Similarly, FOXP3 mRNA gene expression was not significantly different (NS) in the 2 groups. Bars represent median values.