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Matrix Metalloproteinase‐2, ‐9, and ‐12 Gene Polymorphisms in Generalized Aggressive Periodontitis
Author(s) -
Gürkan Ali,
Emingil Gülnur,
Saygan Buket Han,
Atilla Gül,
Çınarcık Serhat,
Köse Timur,
Berdeli Afig
Publication year - 2007
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2007.070148
Subject(s) - aggressive periodontitis , allele , genotype , turkish population , genetics , biology , allele frequency , odds ratio , gene , haplotype , population , periodontitis , medicine , environmental health
Background: Matrix metalloproteinases (MMPs) are involved in periodontal tissue remodeling and degradation. Polymorphisms in the promoter region of the MMP‐2 and ‐9 genes and in the coding region of the MMP‐12 gene could affect transcription and the function of these enzymes. The aim of the present study was to determine the association between the aforementioned MMP polymorphisms and generalized aggressive periodontitis (GAgP). Methods: Genomic DNA was obtained from the peripheral blood of 92 subjects with GAgP and 157 periodontally healthy subjects. MMP‐2 −735C/T, MMP‐9 −1562C/T, and MMP‐12 357Asn/Ser polymorphisms were genotyped by polymerase chain reaction and restriction fragment length polymorphism. Probing depth, clinical attachment loss, supragingival plaque accumulation, and bleeding on probing were recorded. The data were analyzed by χ 2 , logistic regression, and Mann‐Whitney U tests. Results: The genotype distributions, allele frequencies, and rare allele carriage of MMP‐2 and MMP‐12 genes were similar in GAgP and healthy subjects ( P >0.05). T allele frequency and T allele carriage of the MMP‐9 −1562 C/T polymorphism were significantly lower in the GAgP group than in the healthy group ( P <0.05). In addition, logistic regression analysis revealed a protective effect for MMP‐9 −1562 T allele carriers (odds ratio = 0.52; P = 0.04). Conclusions: MMP‐2 −735C/T and MMP‐12 357Asn/Ser polymorphisms are not related to GAgP. Conversely, the MMP‐9 −1562 gene T allele might be associated with a decreased risk for GAgP in the Turkish population.