title: [The association between Fc gamma receptor IIA gene polymorphism and susceptibility to chronic periodontitis in Chinese Han nationality].
abstract: OBJECTIVE
  To investigate the association between Fc gamma receptor IIA gene polymorphism and susceptibility to chronic periodontitis in Chinese Han nationality.
  
  
  METHODS
  DNA samples were collected with buccal swabs from 63 patients with severe chronic periodontitis(CP), 103 patients with mild to moderate CP and 80 healthy individuals as control. Polymorphism in Fc gamma receptor IIA gene cluster was analyzed with PCR-SSP. The genotype distribution and allele frequency among different groups were compared.
  
  
  RESULTS
  It was found that the frequency of Fc gamma RIIA-R/R131 genotype was significantly higher in patients with severe CP (19.05%) compared to that of the healthy controls (P < 0.0125).
  
  
  CONCLUSIONS
  The Fc gamma RIIA-R/R131 genotype may be one of the contributors for the increased susceptibility to severe CP in Chinese Han nationality.
authors.affiliation: Dept. of Periodontology, West China College of Stomatology, Sichuan University, Chengdu 610041, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Tang
authors.forename: Jin-cai
authors.initials: JC
authors.lastname: Zhang
authors.forename: Wen-hui
authors.initials: WH
authors.lastname: Zhang
authors.forename: Ruo-yu
authors.initials: RY
authors.lastname: Pang
mesh_terms: D000328:Adult; D015703:Antigens, CD / Q000235:genetics*; D002681:China / Q000208:ethnology; D002908:Chronic Disease; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease / Q000235:genetics*; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic; D017452:Receptors, IgG / Q000235:genetics*
chemical_list: D015703:Antigens, CD; C080568:Fc gamma receptor IIA; D017452:Receptors, IgG