title: VDR TaqI polymorphism is associated with chronic periodontitis in Italian population.
abstract: OBJECTIVE
  The aim of this study is to investigate the relationship between a vitamin D receptor polymorphism and the diagnosis of periodontal disease in non-smoker Italian patients with aggressive and chronic periodontitis.
  
  
  METHODS
  DNA was obtained from the internal cheek mucosa of 115 patients with chronic periodontitis, 58 with aggressive periodontitis and 65 healthy controls. Allelic discrimination was performed using TaqMan SNP Genotyping Assays. Genotype and allele frequencies were calculated.
  
  
  RESULTS
  Comparisons between diseased patients and healthy controls showed significant differences. Moreover, calculating the odds ratio, individuals with the TT genotype, was more susceptible than individuals with tt to chronic periodontitis and individuals with Tt to aggressive periodontitis. Interestingly, the dominant model (TT + Tt vs. tt) was applicable to chronic periodontitis, whilst for aggressive periodontitis the recessive model (TT vs. Tt + tt) gave the highest odds ratio.
  
  
  CONCLUSIONS
  These data indicated that VDR TaqI polymorphism is differentially associated with development of chronic periodontitis and aggressive periodontitis in Italian population. The study of VDR polymorphisms may therefore be essential for the prevention of periodontitis and for a pre-treatment periodontal and/or for implant assessment. Moreover VDR TaqI polymorphism could be useful to discriminate between aggressive and chronic forms of periodontal disease.
authors.affiliation: IRF in Microdentistry, Via dell'Ariento 4, 50123 Florence, Italy. info@microdentistry.it
authors.forename: F S
authors.initials: FS
authors.lastname: Martelli
authors.forename: A
authors.initials: A
authors.lastname: Mengoni
authors.forename: M
authors.initials: M
authors.lastname: Martelli
authors.forename: C
authors.initials: C
authors.lastname: Rosati
authors.forename: E
authors.initials: E
authors.lastname: Fanti
mesh_terms: D000328:Adult; D010520:Aggressive Periodontitis / Q000453:epidemiology / Q000235:genetics*; D000483:Alleles; D000704:Analysis of Variance; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D055113:Chronic Periodontitis / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007558:Italy / Q000453:epidemiology; D008297:Male; D008390:Markov Chains; D008875:Middle Aged; D011110:Polymorphism, Genetic; D018167:Receptors, Calcitriol / Q000235:genetics*; D019914:Taq Polymerase / Q000737:chemistry
chemical_list: D018167:Receptors, Calcitriol; D019914:Taq Polymerase