title: Correlation of PCSK9 gene polymorphism with cerebral ischemic stroke in Xinjiang Han and Uygur populations.
abstract: BACKGROUND
  Cerebral ischemic stroke (CIS) is a major cause of morbidity and mortality. Its main pathological basis is atherosclerosis (AS); in turn, the main risk factor in AS is dyslipidemia. Human proprotein convertase subtilisin/kexin9 (PCSK9) plays a key role in regulating plasma low-density lipoprotein (LDL) cholesterol levels. We sought to assess the association between PCSK9 and CIS in Chinese Han and Uygur populations.
  
  
  METHODS
  We selected 408 CIS patients and 348 control subjects and used a single-base terminal extension (SNaPshot) method to detect the genotypes of the 20 single-nucleotide polymorphisms (SNPs) in PCSK9.
  
  
  RESULTS
  Distribution of SNP8 (rs529787) genotypes showed a significant difference between CIS and control participants (P=0.049). However, when analyzing Han and Uygur populations separately, we found that only Han subjects showed distribution of SNP1 (rs1711503), SNP2 (rs2479408), and SNP8 (rs529787) alleles that was significantly different between CIS and control participants (P=0.028, P=0.013, P=0.006, respectively), and distribution of SNP2 (rs2479408) in the dominant model (CC vs. CG + GG) was significantly different between CIS and control participants (P=0.013), even after adjustment for covariates (OR: 75.262, 95% confidence interval [CI]: 7.232-783.278, P<0.001). Distribution of the 2 haplotypes (A-C and G-C) (rs1711503 and rs2479408) was significantly different between CIS and control participants (both, P=0.011).
  
  
  CONCLUSIONS
  Both rs1711503 and rs2479408 of PCSK9 genes were associated with CIS in the Han population of China. A-C haplotype may be a genetic marker of CIS risk in this population.
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Dengfeng
authors.initials: D
authors.lastname: Han
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Jianhua
authors.initials: J
authors.lastname: Ma
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Jian
authors.initials: J
authors.lastname: Cai
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Jinlan
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Tuerhong
authors.initials: T
authors.lastname: Tuerxun
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Chenguang
authors.initials: C
authors.lastname: Hao
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Lei
authors.initials: L
authors.lastname: Du
authors.affiliation: Department of Neurology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China (mainland).
authors.forename: Jing
authors.initials: J
authors.lastname: Lei
mesh_terms: D000483:Alleles; D002545:Brain Ischemia / Q000235:genetics*; D016022:Case-Control Studies; D005006:Ethnicity / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D006239:Haplotypes / Q000235:genetics; D006801:Humans; D015810:Linkage Disequilibrium / Q000235:genetics; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D000071449:Proprotein Convertase 9; D043484:Proprotein Convertases / Q000235:genetics*; D012697:Serine Endopeptidases / Q000235:genetics*; D020521:Stroke / Q000235:genetics*
chemical_list: C472125:PCSK9 protein, human; D000071449:Proprotein Convertase 9; D043484:Proprotein Convertases; D012697:Serine Endopeptidases