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Lack of association between an interleukin 1 beta (IL-1beta) gene variation and refractory temporal lobe epilepsy
R J Buono1, T N Ferraro, M J O'Connor
1Center for Neurobiology and Behavior, Department of Psychiatry, University of Pennsylvania School of Medicine, 415 Curie Blvd., Philadelphia, PA 19104-6140, U.S.A. rjbuono@mail.med.upenn.edu
Purpose:
We attempted to confirm recent findings of Kanemoto et al. that demonstrated a positive association (p < 0.017) between a polymorphism in the promoter region of the interleukin 1-beta (IL-1beta) gene and the clinical phenotype of temporal lobe epilepsy with hippocampal sclerosis (TLE+HS).
Methods:
We determined the frequency of this polymorphism in a group of 61 TLE+HS patients of European ancestry and compared it with that found in 119 ethnically matched control subjects.
Results:
Analysis of genotype and allele frequencies showed no statistically significant difference in the distribution of the polymorphism between the two groups (p = 0.10).
Conclusions:
These data suggest that this IL-1beta promoter polymorphism does not act as a strong susceptibility factor for TLE+HS in a population of individuals of European ancestry.