Anti-glutamate receptor ɛ2 antibodies in psychiatric patients with anti-thyroid autoantibodies - A prevalence study in Japan

► This is the first report on the prevalence of anti-GluRɛ2 antibodies in PPATs. ► Anti-GluRɛ2 antibodies were frequently observed in the CSF of PPATs. ► Anti-GluRɛ2 antibodies would relate to the neuropsychiatric manifestations of PPATs.