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. 2000 Mar;119(3):433–440. doi: 10.1046/j.1365-2249.2000.01146.x

Fig. 2.

Fig. 2

Proliferative responses, CD4 and CD8 subsets in elderly humans (▪) and in young controls (□). Medians and quartiles are shown. *P < 0.05. Proliferative responses to phytohaemagglutinin (PHA): elderly, n = 161 versus young, n = 87; candida: elderly, n = 118 versus young, n = 68; IL-2: elderly, n = 154 versus young, n = 87; pokeweed mitogen (PWM): elderly, n = 159 versus young, n = 87. CD4 subsets, CD4 total: elderly, n = 169 versus young, n = 90; naive, intermediates and memory subsets: elderly, n = 159 versus young, n = 86; CD28 subsets: elderly, n = 154 versus young, n = 79. CD8 subsets, CD8 total: elderly, n = 168 versus young, n = 91; naive, intermediates and memory subsets: elderly, n = 160 versus young, n = 86; CD28 subsets: elderly, n = 150 versus young, n = 79. Naive, CD62L+CD45RO− cells; intermediates, CD62L−CD45RO− cells; memory cells, CD45RO+ cells.