Abstract
Epilepsy is one of the most common chronic neurological diseases. A recent study has implicated that the genetic variants of the SLC6A11 gene encoding GAT-3, an astrocytic GABA transporter, may influence the efficacy of antiepileptic drugs (AEDs) in the Korean population. This study aims to investigate the possible associations between SLC6A11 gene and drug resistance in Chinese epilepsy patients. Genomic DNA from 240 drug resistant epilepsy (DRE) patients and 336 drug responsive epilepsy patients was tested for the polymorphisms using Illumina GoldenGate assay. None of the 14 tagSNP alleles and genotypes were found to be related to DRE. The frequencies of haplotype 5 was obviously lower in DRE patients than that in drug responsive epilepsy patients (1% vs. 4%, OR = 2.56 [0.107 - 0.763], p = 0.01). However, after the correction of multiple comparisons with Bonferroni's method, we found that haplotype 5 was not associated with DRE. Our study suggested no existing association between the 14 SNPs of SLC6A11 and AEDs efficacy in the Chinese Han population.
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