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Updated: May 11, 2025

Hippocampal Neuronal Cultures to Detect and Study New Pathogenic Antibodies Involved in Autoimmune Encephalitis
Published on: June 2, 2022
Anti-dipeptidyl-peptidase-like protein-6 (DPPX) autoimmune encephalitis associated with severe multifocal dystonia
Eric Roddy1, Erik Gentry1, Victoria Holiday1
1University of Louisville School of Medicine, Department of Neurology, USA.
Abstract:
Anti-DPPX encephalitis is a rare form of autoimmune encephalitis characterized antibodies against a subunit of Kv4.2 potassium channels. Characteristic clinical features include cognitive dysfunction, parasomnias, psychosis, and seizures. Motor symptoms typically include myoclonus, tremor, and midline ataxia. DPPX encephalitis presenting as new-onset focal dystonia has not been previously described.
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