IL17A and Cognitive impairment: Finally, a recent study evidenced that the administration of antibodies anti IL-17 and the subsequent neutralization of IL-17 cytokine ameliorate cognitive impairment and amyloid-β-induced neuroinflammation in adult mice, as suggested by reduced Aβ1–42, glial fibrillary acidic protein (GFAP), S100 proteins and MPOs (Cristiano et al., 2019).