Figure 2From: Low frequency of CD4+CD25+ Treg in SLE patients: a heritable trait associated with CTLA4 and TGFβ gene variants(A) Decrease in the frequency of recent thymic emigrants with age, as indicated by the decrease of the CD45RO-CD31+ population in total CD4+ PBMC in SLE patients and controls. (B) Decrease in the frequency of CD31+ cells inside CD4+CD25+ cells with age, as indicated by the decrease of the CD45RO-CD31+ population in total CD4+ PBMC in SLE patients and controls The linear regression curve is shown for each group.Back to article page