Serum levels of IL-37, IL-17A, IFN-γ, TNF-α, and cerebrospinal fluids IL-37 and IL-17A were significantly increased in the acute phase of GBS and levels of IL-37 and IL-17A in cerebrospinal fluid and serum level of TNF-α were positively correlated with the grade of paralysis [72]. This evidence concerns the gene IL17A and Guillain-Barre syndrome.