Volume 31, Issue 11 pp. 959-964

Polymorphisms in genes coding for enzymes metabolizing smoking-derived substances and the risk of periodontitis

Jeong-Sook Kim

Jeong-Sook Kim

Department of Periodontology, Yonsei University College of Dentistry, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

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Jong Y. Park

Jong Y. Park

Department of Interdisciplinary Oncology, H. Lee Moffitt Cancer Center & Research Institute, University of South Florida, Tampa, FL 33647, USA

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Won-Yoon Chung

Won-Yoon Chung

Department of Oral Biology, Yonsei University College of Dentistry, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

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Min-Ah Choi

Min-Ah Choi

Department of Oral Biology, Yonsei University College of Dentistry, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

Brain Korea 21 Project for Medical Science, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

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Kyoo-Sung Cho

Kyoo-Sung Cho

Department of Periodontology, Yonsei University College of Dentistry, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

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Kwang-Kyun Park

Kwang-Kyun Park

Department of Oral Biology, Yonsei University College of Dentistry, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

Brain Korea 21 Project for Medical Science, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul 120-752, South Korea

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First published: 17 September 2004
Citations: 23
Address:
K. K. Park
Department of Oral Biology
Yonsei University College of Dentistry
134 Shinchon-Dong
Seodaemoon-Ku
Seoul 120-752
South Korea
E-mail: [email protected]
Fax: (+82) 2 364 7113

Abstract

Objectives: Although the direct cause for periodontitis is oral bacterial infection, its progression depends upon genetic and environmental factors. Smoking, one of the environmental factors, is a risk factor for the development and severity of periodontitis. Therefore, individual susceptibility to periodontitis may be influenced by the polymorphisms of genes coding for enzymes metabolizing tobacco-derived substances. The object of this study is to investigate roles of genetic polymorphisms of these metabolizing enzymes in the risk for periodontitis.

Material and Methods: We investigated three important enzymes: cytochrome P450 (CYP) 1A1, CYP2E1 and glutathione S-transferase (GST) M1, involved in the metabolic activation and detoxification of tobacco-derived substances. The prevalence of the polymorphisms of these genes was examined in 115 patients with periodontitis as well as in 126 control subjects.

Results: Significantly increased risk for periodontitis was observed for subjects with the polymorphic CYP1A1 m2 allele (odds ratio (OR)=2.3, 95% confidence interval (CI)=1.2–4.4). A significant risk increase for periodontitis associated with the GSTM1 allele was observed (OR=2.1, 95% CI=1.3–3.6). However, no association was observed between the CYP2E1 Pst1 polymorphism and risk for periodontitis (OR=1.3, 95% CI=0.6–2.5).

Conclusion: These results suggest that the GSTM1 and CYP1A1 polymorphisms may play an important role in risk for periodontitis.

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