Effect of different therapies on CD4⁺ T cell subsets and cell surface CD26 levels.

<p>Frequencies of different CD4^<b>+</b> T cell populations defined by CD45R0 and CD26 expression, and CD26 levels (MFI) in those cell populations, were determined by flow cytometry in RA patients undergoing different therapies. Confidence interval can be found in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0131992#pone.0131992.t001" target="_blank">Table 1</a>. Asterisks show statistically significant differences (p<0.05; Student’s t-test).