When analyzing the cytokine levels in the groups of patients with depressive disorder (Groups I and III), as determined by EPDS scores ≥ 11, in comparison with the groups without this disorder (Groups II and IV), there were no observed changes in the levels of MIF, IFN-γ, and IL-6 associated with this mental disorder (Figure 3A,C,F). Here, IL6 is linked to mental disorder.