Association analysis of a polymorphism of @entity1356 ( @entity1356 ) gene with XXXX in a Chinese population.

@entity1 @entity131 @entity1356 @entity1315 @entity2975 @entity302 @entity8682
PURPOSE: @entity1315 with @entity131 (TLE- @entity8682 +) is one of the most common medically intractable @entity302 . Although the pathogenesis of @entity8682 + still remains highly controversial, genetics may play a role as a predisposing factor. Previous evidence in a Japanese population shows that the homozygotes for allele 2 at position -511 of the @entity1356 gene promoter region ( @entity1356 -511*2/2) confers susceptibility to the development of @entity8682 . However, this result has not been confirmed in populations of European ancestry. Given that the discrepancy may be attributed to ethnic differences, our aim in this study was to test the validity of a previous report in another Asian population. METHODS: This study consisted of total 112 nonlesional TLE @entity1 of Chinese ancestry, and 115 ethnically matched control subjects. A 304-base pair fragment in position of @entity1356 -511 was amplified by polymerase chain reaction (PCR). The PCR products were digested with restriction enzyme AvaI, and run on a 12% @entity2975 gel. We compared the frequency of this gene variation among 67 refractory TLE- @entity8682 + @entity1 , 45 @entity1 without @entity8682 (TLE- @entity8682 -), and normal control subjects. RESULTS: The heterozygous type (-511*1/2) is the most common genotype in our @entity1 groups and controls. Allele 1 (-511C) and allele 2 (-511T) showed equal frequency ( approximately 50%), which is similar to that (46%) in Japanese. Analysis of genotype and allele distribution showed no significant difference among the three groups (p > 0.05). CONCLUSIONS: In contrast with the lower frequency in the white population (35 and 34%) and higher rate in the population of African ancestry (60%), the allele -511T frequency in our present study is approximately 50%, indicating differences in the distribution of allele frequencies in @entity1356 -511 among different ethnic groups. In this Chinese population, however, we still did not find a strong association between @entity1356 -511 polymorphism and the development of @entity8682 .
