title: [Association of single nucleotide polymorphisms of Nrf2 promoter region with susceptibility to vitiligo].
abstract: OBJECTIVE
  To investigate the association of the single nucleotide polymorphisms (SNPs) in Nrf2 promoter region with the susceptibility to risk of vitiligo.
  
  
  METHODS
  Samples of peripheral blood were collected from 300 vitiligo patients and 300 healthy persons. The genotypes of -686A/G, -684G/A, and -650C/A were detected by direct-sequencing. Genotyping of variable number of tandem repeat (VNTR) was performed by gene scan analysis with an ABI 310 Sequencer. Genetic and allelic frequencies were analyzed by Chi-square test and the risk was evaluated by calculating OR and 95% CI.
  
  
  RESULTS
  There was statistical significant difference in genotypic and allelic frequencies of -650C/A between the vitiligo group and healthy control group (P < 0.05), and A -650 allele was associated with risk for vitiligo statistically significantly (OR = 1.724, 95% CI: 1.345-2.211, chi2 = 18.096, P < 0.01). Homozygote of A allele increased the risk for vitiligo obviously (OR = 2.902, 95% CI: 1.624-5.188, P < 0.01). No significant difference was found in other three polymorphisms between the two groups.
  
  
  CONCLUSIONS
  polymorphism of Nrf2 promoter region -650C/A was associated with the development of vitiligo and A -650 allele may be one of risk factors for vitiligo.
authors.affiliation: Department of Dermatology, Third People's Hospital of Hangzhou, Hangzhou 310009, China.
authors.forename: Miao-Ni
authors.initials: MN
authors.lastname: Zhou
authors.forename: Ai-E
authors.initials: AE
authors.lastname: Xu
authors.forename: Liang-Jun
authors.initials: LJ
authors.lastname: Lu
authors.forename: Yong-Wei
authors.initials: YW
authors.lastname: Li
authors.forename: De-Kuang
authors.initials: DK
authors.lastname: Zhao
authors.forename: Cui-Ping
authors.initials: CP
authors.lastname: Guan