Association of IL8 −251A/T, IL12B −1188A/C and TNF-α −238A/G polymorphisms with Tourette syndrome in a family-based association study in a Chinese Han population

► 108 triots of TS were evaluated association of cytokines using HRR and TDT design. ► No significant association were found between polymorphism of cytokines and TS. ► This is the first report on association of cytokines and TS in Chinese population.