Figure 3.

CD31⁺ naive T cell frequency, T cell receptor excision circles (TREC) content and relative telomere length (RTL) in the peripheral blood (PB) and lymph node (LN) with correlations. The frequencies and correlations of (a) CD4⁺CD31⁺ naive T cells, (b) CD8⁺CD31⁺ naive T cells, (c) TREC content, (d) CD4⁺ RTL and (e) CD8⁺ RTL for both the peripheral blood and the lymph node are represented. Frequencies of CD4⁺ and CD8⁺CD31⁺ naive T cells and RTL are depicted as percentages as well as median and interquartile range. The ΔCT is related inversely to the TREC content; n = 38 for peripheral blood and n = 37 for lymph node samples with regard to the analysis of CD4⁺CD31⁺ naive T cells and CD8⁺CD31⁺ naive T cells; n = 22 for analysis of the TREC content and n = 24 for the analysis of RTL in both T cell subsets. Significant differences were calculated and shown (*P < 0·05; **P ≤ 0·1; ***P ≤ 0·001).