The international consensus recommendations highlight testing to include anti-neuronal surface antigens, myelin oligodendrocyte glycoprotein (MOG), glutamic acid decarboxylase 65 (GAD65), anti-thyroid, paraneoplastic, and systemic lupus erythematosus (SLE) panels, anti-nuclear antibodies (ANAs), and antineutrophil cytoplasmic antibodies (ANCAs) as a standard workup [2,14]. This evidence concerns the gene GAD2 and systemic lupus erythematosus.