Identification of IL-18 and Th17 cells in salivary glands of patients with Sjögren's syndrome, and amplification of IL-17-mediated secretion of inflammatory cytokines from salivary gland cells by IL-18. Sakai A, Sugawara Y, Kuroishi T, Sasano T, Sugawara S. J Immunol. 2008 Aug 15;181(4):2898-906. This evidence concerns the gene IL17A and Sjogren syndrome.