title: Vascular endothelial growth factor gene polymorphisms and risk of neovascular age-related macular degeneration in a Chinese cohort.
abstract: OBJECTIVE
  To evaluate the association between vascular endothelial growth factor (VEGF) gene polymorphism and the risk of neovascular age-related macular degeneration (AMD) in a case-control study in a Chinese cohort.
  
  
  METHODS
  We genotyped 4 common single-nucleotide polymorphisms (SNPs), namely -460T/C (rs833061), +405C/G (rs2010963), +674C/T (rs1413711) and +936C/T (rs3025039), simultaneously detected 7 tag SNPs (tSNPs) in the VEGF gene, in 159 neovascular AMD patients and 140 age- and sex-matched control subjects. Genetic analyses for an additive, dominant and recessive model were performed on all available genotype data. All the possible haplotypes of these 11 SNPs were detected.
  
  
  RESULTS
  No evident association was found in the allele frequencies of any individual SNP between patients and controls; the combined p values in each genotype group were greater than 0.05. Haplotype analyses of these SNPs did not provide any evidence for an association with the risk of neovascular AMD in this Chinese cohort (p > 0.05).
  
  
  CONCLUSIONS
  Detection of 4 common SNPs and 7 tSNPs in the VEGF gene did not find any statistically significant association with neovascular AMD in the Chinese cohort. Further studies of comprehensive VEGF gene variations are required to characterize the susceptibility of the VEGF gene in the pathogenesis of AMD.
authors.affiliation: Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China. drquyi@gmail.com
authors.forename: Yi
authors.initials: Y
authors.lastname: Qu
authors.forename: Hong
authors.initials: H
authors.lastname: Dai
authors.forename: Fang
authors.initials: F
authors.lastname: Zhou
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Zhang
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Xu
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Bi
authors.forename: Xuemei
authors.initials: X
authors.lastname: Pan
authors.forename: Hongge
authors.initials: H
authors.lastname: Wang
authors.forename: Hua
authors.initials: H
authors.lastname: Jiang
authors.forename: Ningning
authors.initials: N
authors.lastname: Yin
authors.forename: Guangfu
authors.initials: G
authors.lastname: Dang
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People / Q000235:genetics; D016022:Case-Control Studies; D020256:Choroidal Neovascularization / Q000235:genetics*; D005260:Female; D005838:Genotype; D006801:Humans; D015810:Linkage Disequilibrium; D008268:Macular Degeneration / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics*
chemical_list: C467484:VEGFA protein, human; D042461:Vascular Endothelial Growth Factor A