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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Ageing Res Rev. 2010 Aug 20;10(3):330–335. doi: 10.1016/j.arr.2010.08.004

Figure 1. Age-related changes in the percentages and numbers of B cell subsets.

Figure 1

Figure 1

A. One hundred μl of blood from young (20-64 years) and elderly (≥65 years) subjects were stained to evaluate the percentages of naïve and switch memory B cells. The percentages of IgM memory (IgG−IgA−CD27+, not shown) were unchanged in young and old and together with naïve and total switch memory add up to 100%. Sixty-six young and forty-six elderly subjects were evaluated. The differences between young and elderly subjects were evaluated by the Wilcoxon test (two-tailed). p<0.05 (*), p<0.01 (**). B. Fifty young and twenty-five elderly subjects were evaluated.