Figure 2

(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.