GAD1 and type 1 diabetes mellitus: Nonetheless, the trend toward a higher frequency of anti-thyroglobulin antibodies associated with rs5992628G (p=0.073), a 3’UTR variant with no known effect, and previous reports linking the rs4819554G to decreased anti-GAD titers and reduced T1D risk (14) further support the role of IL17RA in autoimmunity.