title: [Relationship between interleukin-6 gene-572C/G polymorphism and chronic periodontitis].
abstract: OBJECTIVE
  To investigate the relationship between interleukin-6 (IL-6) gene -572C/G polymorphism and the risk of chronic periodontitis disease.
  
  
  METHODS
  IL-6-572C/G genotype polymorphism was examined in 93 patients with chronic periodontitis and 96 control subjects by PCR restriction fragment length polymorphism (PCR-RFLP) method.
  
  
  RESULTS
  IL-6-572GG genotype and G allele were more frequent in chronic periodontitis patients than that in control subjects (P<0.05). -572CC, CG and GG genotype frequency were 52.7 % , 40.9 %, 6.4 % in chronic periodontitis patients and 67.7 %, 31.3%, 1.0 % in control subjects, respectively. -572CG + GG genotype and G allele were more frequent in patients than that in control subjects (P<0.05). Compared with CC genotype,the odds ratio for chronic periodontitis was 1.88 (95% CI: 1.04-3.40, P<0.05) for CG + GG genotype.
  
  
  CONCLUSIONS
  The frequency of -572CG + GG genotype was higher in patients with chronic periodontitis compared with the control subjects. IL-6-572C/G polymorphism may be a genetic susceptibility factor for chronic periodontitis in Chinese Hans population.
authors.affiliation: Department of Stomatology, Henan Provincial People's Hospital, Zhengzhou 450003, China. gzm195005@126.com
authors.forename: Ze-min
authors.initials: ZM
authors.lastname: Guan
authors.forename: Jing-jin
authors.initials: JJ
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: Ma
authors.forename: Dong-hong
authors.initials: DH
authors.lastname: Wu
authors.forename: Jie
authors.initials: J
authors.lastname: Yu
authors.forename: Guo-qiang
authors.initials: GQ
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D000483:Alleles; D016022:Case-Control Studies; D055113:Chronic Periodontitis / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D015850:Interleukin-6 / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide
chemical_list: C508600:IL6 protein, human; D015850:Interleukin-6