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BACKGROUND: Over the last few years autoantibodies against neuronal proteins have been identified in several forms of autoimmune encephalitis and epilepsy. NMDA receptor (NMDAR) and voltage gated potassium channel (VGKC) complex antibodies are mainly associated with limbic encephalitis (LE) whereas glutamic acid decarboxylase antibodies (GADA) and anticardiolipin (ACL) antibodies are more commonly detected in patients with chronic epilepsy. Clinical features vary between these antibodies suggesting the specificity of different neuronal antibodies in seizures. METHODS: Serum samples of 14 GADA positive and 24 ACL positive patients with refractory epilepsy were analyzed for the presence of VGKC or NMDAR antibodies. RESULTS: No positive VGKC or NMDAR antibodies were found in these patients. CONCLUSIONS: The results confirm the different significance of these neuronal antibodies in seizure disorders. Different autoantibodies have different significance in seizures and probably have different pathophysiological mechanisms of actions.

Original publication




Journal article


Epilepsy Res

Publication Date





592 - 596


Autoimmune encephalitis, Neuronal antibody, New-onset epilepsy, Polyautoimmunity, Refractory epilepsy, Seizure, Adolescent, Adult, Aged, Antibodies, Cardiolipins, Epilepsy, Female, Glutamate Decarboxylase, Humans, Male, Middle Aged, Nerve Tissue Proteins, Potassium Channels, Voltage-Gated, Receptors, N-Methyl-D-Aspartate, Young Adult