The analysis of the relative (the percentage of total CD3+ and CD4+ cells) and absolute (the number of cells per 1 μL of whole peripheral blood) numbers of the main ‘polarized’ Th-cell subsets revealed an increase in the relative number of Th17-like cells by 39% and 50% (compared to control) in the AIS and DM groups, respectively (Table 7). The gene discussed is CD4; the disease is diabetes mellitus.