Expression of genes IL-17, IL-21, IL-23, IL-35 at the mRNA level in the study and control group (IL-17—interleukin 17, IL-21—interleukin 21, IL-23—interleukin 23, IL-35—interleukin 35, K- control group). The figure shows the arithmetic mean, minimum and maximum values of gene expression with confidence intervals of 95%.