Correlations between interleukin 18 gene promoter -137 G/C polymorphism and plasma levels of interleukin-18 and acute cerebral infraction
10.3760/cma.j.issn.1673-4165.2011.07.003
- VernacularTitle:白细胞介素-18启动子-137G/C基因多态性和血浆IL-18含量与急性脑梗死的相关性
- Author:
Yongjiu WANG
;
Yan CHENG
- Publication Type:Journal Article
- Keywords:
Interleukin-18;
Polymorphism,genetic;
Brain infarction
- From:
International Journal of Cerebrovascular Diseases
2011;19(7):498-502
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the correlation between interleukin 18 (IL-18) gene promoter -137 G/C polymorphism and plasma levels of IL-18 and cerebral infraction.Methods A total of 218 Han patients with acute cerebral infarction in northern China were recruited and 218 sex- and age-matched health subjects were used as control group. Enzyme-linked irnmunosorbent assay was used to detcet the level of IL-18. Sequence specific primer-polymerase chain reaction was used to detect IL-18 gene promoter - 137 G/C polymorphism. Results The plasma IL-18 levels (1 47. 47 ±29. 79 ng/L vs. 78. 78 ± 16. 42 ng/L; t =29. 816, P ＜0. 01)and the frequency of - 137 GG genotype (79. 8％ vs. 67. 0％;x2 =8. 563, P =0. 032) in the acute cerebral infarction group were significantly higher than those in the control group. The risk of cerebral infarction in individuals with - 137GG genotype was 1.95 times higher than that in individuals without - 137GG genotype (odds ratio 1.95, 95％ confidence interval 1. 263-3. 012,P =0. 002); plasma IL-18 levels in patients with CG genotype were significantly higher than those in patients with CG +CC genotype (150. 00 ±27. 26 ng/L vs. 118. 47 ±21.62 ng/L, t =8. 222, P ＜0. 01). Conclusions The IL-18 gene promoter - 137 G/C polymorphism correlates with cerebral infarction in Han population in north China. The risk of cerebral infarction in individuals with GG genotype is significantly higher, and it may be associated with its influence on plasma level of IL-18.
