Mutations in SEPT9 cause hereditary neuralgic amyotrophy
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Updated: Aug 15, 2026

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis
Published on: July 16, 2021
Gregor Kuhlenbäumer1, Mark C Hannibal, Eva Nelis
1Department of Neurology, University of Münster, Domagkstr. 3, D-48149 Münster, Germany. gkuhlen@uni-muenster.de
Abstract:
Hereditary neuralgic amyotrophy (HNA) is an autosomal dominant recurrent neuropathy affecting the brachial plexus. HNA is triggered by environmental factors such as infection or parturition. We report three mutations in the gene septin 9 (SEPT9) in six families with HNA linked to chromosome 17q25. HNA is the first monogenetic disease caused by mutations in a gene of the septin family. Septins are implicated in formation of the cytoskeleton, cell division and tumorigenesis.
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