CD4 and Huntington disease: No significant change was observed in the percentages of naive (CD45RA+CCR7+) CD4+T cells, central memory (CD45RA–CCR7+), effector memory (CD45RA–CCR7–), and terminally differentiated cells (CD45RA+CCR7–) CD4+T cells from UNT or ART compared with HD (Fig. 4B).