Interleukin-2 and interleukin-6 gene promoter polymorphisms, and early failure of dental implants
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Data
2005-12-01
Autores
Campos, Maria Isabela Guimarães
Godoy Dos Santos, Maria Cristina Leme
Trevilatto, Paula Cristina
Scarel-Caminaga, Raquel Mantuaneli
Bezerra, Fabio Jose
Line, Sergio Roberto Peres
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Resumo
Single nucleotide polymorphisms in the promoter region of the human interleukin (IL)-2 (T-330G) and IL-6 (G-174C) genes have modified the transcriptional activity of these cytokines and are associated with several diseases. The aim of this study was to investigate the possible relationship between these single nucleotide polymorphisms and early implant failure. A sample of 74 nonsmokers was divided into 2 groups: test group comprising 34 patients (mean age 49.3 years) with ĝ‰¥1 implants that failed and control group consisting of 40 patients (mean age 43.8 years) with ĝ‰¥1 healthy implants. Genomic deoxyribonucleic acid from oral mucosa was amplified by polymerase chain reaction and analyzed by restriction fragment length polymorphism. Monte Carlo simulations (P < 0.05) were used to assess differences in allele and genotypes frequencies of the single nucleotide polymorphisms between the 2 groups. No significant differences were observed in the allele and genotypes distribution of both polymorphisms when the 2 groups were compared. The results indicate that polymorphisms in the IL-2 (T-330G) and IL-6 (G-174C) genes are not associated with early implant failure, suggesting that the presence of those single nucleotide polymorphisms does not constitute a genetic risk factor for implant loss in the studied population. Copyright © 2005 by Lippincott Williams & Wilkins.
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Gene polymorphism, Implant failure, Interleukin-2, Interleukin-6, Osseointegration, interleukin 2, interleukin 6, adult, case control study, dental surgery, female, genetic polymorphism, genetics, human, male, middle aged, promoter region, time, tooth implantation, Adult, Case-Control Studies, Dental Implants, Dental Restoration Failure, Female, Humans, Male, Middle Aged, Polymorphism, Genetic, Promoter Regions (Genetics), Time Factors
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Implant Dentistry, v. 14, n. 4, p. 391-398, 2005.