Present addresses: National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorders, Shizuoka, Japan.
Mutations in LGI1 gene in Japanese families with autosomal dominant lateral temporal lobe epilepsy: The first report from Asian families
Article first published online: 22 SEP 2009
Wiley Periodicals, Inc. © 2009 International League Against Epilepsy
Volume 51, Issue 4, pages 690–693, April 2010
How to Cite
Kawamata, J., Ikeda, A., Fujita, Y., Usui, K., Shimohama, S. and Takahashi, R. (2010), Mutations in LGI1 gene in Japanese families with autosomal dominant lateral temporal lobe epilepsy: The first report from Asian families. Epilepsia, 51: 690–693. doi: 10.1111/j.1528-1167.2009.02309.x
- Issue published online: 1 APR 2010
- Article first published online: 22 SEP 2009
- Accepted July 24, 2009; Early View publication September 22, 2009.
- Psychiatric symptoms;
- Panic attack–like symptoms
Autosomal dominant lateral temporal lobe epilepsy (ADLTE) caused by LGI1 (leucine-rich gene, glioma-inactivated-1) mutations is a rare familial epileptic syndrome characterized by the auditory ictal manifestation and rare nocturnal generalized seizures. We have examined the sequence of the LGI1 gene in four Japanese families with lateral temporal lobe epilepsy having characteristic auditory features, and identified one novel (1421G>A), and one reported (1418C>T) point mutation each in two families. These two mutations were 3 bp apart in the LGI1 gene and caused adjoining amino acid substitutions. The two families presented different clinical phenotypes and seizure control to drug treatment. These findings suggest that LGI1 mutations in Japanese ADLTE families may not be uncommon, and that diverse clinical phenotypes make adequate diagnosis of ADLTE difficult when only based on clinical information.