Send to

Choose Destination
Ann Neurol. 2009 Sep;66(3):415-9. doi: 10.1002/ana.21724.

Early-onset absence epilepsy caused by mutations in the glucose transporter GLUT1.

Author information

Neurogenetics Group, VIB Department of Molecular Genetics, University of Antwerp, Antwerp, Belgium.


Absence epilepsies of childhood are heterogeneous with most cases following complex inheritance. Those cases with onset before 4 years of age represent a poorly studied subset. We screened 34 patients with early-onset absence epilepsy for mutations in SLC2A1, the gene encoding the GLUT1 glucose transporter. Mutations leading to reduced protein function were found in 12% (4/34) of patients. Two mutations arose de novo, and two were familial. These findings suggest GLUT1 deficiency underlies a significant proportion of early-onset absence epilepsy, which has both genetic counseling and treatment implications because the ketogenic diet is effective in GLUT1 deficiency.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center