title: Relationship between the thromboxane A2 receptor gene and susceptibility to cerebral infarction.
abstract: The risk of cerebral infarction (CI) in an individual is dependent on the interplay between genetic risk factors and environmental influences. Binding of thromboxane A2 (TXA2) to its receptor (TP) modulates thrombosis/hemostasis and plays a significant role in the pathogenesis of CI. The aim of the present study was to investigate the relationship between human TP gene single nucleotide polymorphisms (SNPs) and haplotypes and CI in a Japanese population. A genetic association study was performed in 194 CI patients and 365 non-CI subjects by specifically characterizing 6 SNPs in the human TP gene (rs2271875, rs768963, rs2238634, rs11085026, rs4523 and rs4806942). Analysis demonstrated that there were significant differences in the overall distribution of genotypes and dominant or recessive models of rs2271875 and rs768963 between the CI and the non-CI groups. Multiple logistic regression analysis revealed that the C allele of rs768963 was significantly associated with CI (p = 0.029), even after adjusting for confounding factors (odds ratio: 2.41). Further, the C-T-C haplotype of rs768963-rs2238634-rs4806942 was significantly more frequent in the CI group (23.0%) than in the non-CI group (17.7%). These results suggest that specific SNPs and haplotypes may have utility as genetic markers for the risk of CI and that TP or a neighboring gene is associated with the increased susceptibility to CI.
authors.affiliation: Nihon University School of Medicine, Tokyo, Japan.
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kaneko
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Nakayama
authors.forename: Kosuke
authors.initials: K
authors.lastname: Saito
authors.forename: Akihiko
authors.initials: A
authors.lastname: Morita
authors.forename: Ichiro
authors.initials: I
authors.lastname: Sato
authors.forename: Aya
authors.initials: A
authors.lastname: Maruyama
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Soma
authors.forename: Teruyuki
authors.initials: T
authors.lastname: Takahashi
authors.forename: Naoyuki
authors.initials: N
authors.lastname: Sato
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People; D002544:Cerebral Infarction / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D006239:Haplotypes; D006801:Humans; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D044244:Receptors, Thromboxane A2, Prostaglandin H2 / Q000235:genetics*
chemical_list: D044244:Receptors, Thromboxane A2, Prostaglandin H2