title: Intracranial aneurysm risk factor genes: relationship with intracranial aneurysm risk in a Chinese Han population.
abstract: Few studies have examined the genes related to risk fac-tors that may contribute to intracranial aneurysms (IAs). This study in Chinese patients aimed to explore the relationship between IA and 28 gene loci, proven to be associated with risk factors for IA. We recruited 119 patients with aneurysms and 257 controls. Single factor and logistic regression models were used to analyze the association of IA and IA rup-ture with risk factors. Twenty-eight single nucleotide polymorphisms (SNPs) in 22 genes were genotyped for the patient and control groups. SNP genotypes and allele frequencies were analyzed by the chi-square test. Logistic regression analysis identified hypertension as a factor that increased IA risk (P = 1.0 x 10(-4); OR, 2.500; 95%CI, 1.573-3.972); IA was associated with two SNPs in the TSLC2A9 gene: rs7660895 (P = 0.007; OR, 1.541; 95%CI, 1.126-2.110); and in the TOX gene: rs11777927 (P = 0.013; OR, 1.511; 95%CI, 1.088-2.098). Subsequent removal of the influence of family relationship identified between 12 of 119 patients enhanced the significant association of these SNPs with IA (P = 0.001; OR, 1.691; 95%CI, 1.226-2.332; and P = 0.006; OR, 1.587; 95%CI, 1.137-2.213 for rs7660895 and rs11777927, respectively). Fur-thermore, the minor allele of rs7660895 (A) was also associated with IA rupture (P = 0.007; OR, 2.196; 95%CI, 1.230-3.921). Therefore, hypertension is an independent risk factor for IA. Importantly, the TSL-C2A9 (rs7660895) and TOX (rs11777927) gene polymorphisms may be associated with formation of IAs, and rs7660895 may be associated with IA rupture.
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: L T
authors.initials: LT
authors.lastname: Zhang
authors.affiliation: Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
authors.forename: F J
authors.initials: FJ
authors.lastname: Wei
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: W T
authors.initials: WT
authors.lastname: Dong
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: Z N
authors.initials: ZN
authors.lastname: Jin
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: F
authors.initials: F
authors.lastname: Gao
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: N N
authors.initials: NN
authors.lastname: Gao
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: X W
authors.initials: XW
authors.lastname: Cai
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: N X
authors.initials: NX
authors.lastname: Li
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: W
authors.initials: W
authors.lastname: Wei
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: F S
authors.initials: FS
authors.lastname: Xiao
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: S Y
authors.initials: SY
authors.lastname: Yue
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: J N
authors.initials: JN
authors.lastname: Zhang
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.
authors.forename: S Y
authors.initials: SY
authors.lastname: Yang
authors.affiliation: Research Center of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
authors.forename: W D
authors.initials: WD
authors.lastname: Li
authors.affiliation: Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China yangxinyu@tijmu.edu.cn.
authors.forename: X Y
authors.initials: XY
authors.lastname: Yang
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D017542:Aneurysm, Ruptured / Q000208:ethnology / Q000235:genetics* / Q000473:pathology; D044466:Asian People; D016022:Case-Control Studies; D005260:Female; D015870:Gene Expression; D005787:Gene Frequency; D056426:Genetic Loci; D051246:Glucose Transport Proteins, Facilitative / Q000235:genetics* / Q000378:metabolism; D006609:High Mobility Group Proteins / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D006973:Hypertension / Q000208:ethnology / Q000235:genetics* / Q000473:pathology; D002532:Intracranial Aneurysm / Q000208:ethnology / Q000235:genetics* / Q000473:pathology; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors
chemical_list: D051246:Glucose Transport Proteins, Facilitative; D006609:High Mobility Group Proteins; C411811:SLC2A9 protein, human; C558851:TOX protein, human