In their research, they demonstrated that T(H)2 cytokine and related marker levels were significantly increased in the nasal polyposis tissue of white patients, whereas Asian patients showed a T(H)1/T(H)17 cell pattern, and high levels of IFN-γ, Th17, and neutrophil-related cytokines (IL-1β, IL-6, and IL-17). Here, IL17A is linked to Nasal polyposis.