Influence of the SCN1A IVS5N + 5 G>A Polymorphism on Therapy with Carbamazepine for Epilepsy.

ABSTRACT: Carbamazepine (CBZ) blocks neuronal sodium channels in a voltage- and frequency-dependent manner, delaying the recovery of the channels from the inactivated state, reducing the number of action potentials within a burst, and decreasing burst duration. The α-subunit of the first neuronal sodium channel (SCN1A) is a major gene in different epilepsies. A synonymous polymorphism (SCN1A IVS5N + 5 G>A or rs3812718) is common in exon 5 of this gene. Mutations in the α-unit of this gene are associated with CBZ-resistant epilepsy and a higher maintenance dose of CBZ. We have investigated the association of this single nucleotide polymorphism (SNP) and epilepsy, efficacy and dose-dependence of CBZ therapy in 147 adult Macedonian patients and 137 non epileptic controls. No significant differences in

SUBMITTER: Sterjev Z 

PROVIDER: S-EPMC3776651 | biostudies-literature | 2012 Jun

REPOSITORIES: biostudies-literature