AQP4 and Guillain-Barre syndrome: Additionally, autoantibodies, including anti-GQ1b IgG, anti GM2 IgM/IgG, and anti GD1b IgM/IgG for GBS (43), anti-MOG, AQP4 IgG for myelitis, anti-NMDAR, MOG, glutamic acid decarboxylase(GAD), contact resistance protein related protein-2(CASPR2), voltage-gated potassium channels(VGKC), and glioma inactivation protein 1(LGI1) IgG for AIE (45), were present in parts of patients.