Effect of cigarette smoking on paraoxonase 1 activity according to PON1 L55M and PON1 Q192R gene polymorphisms
| Autor: | Ali Bouslama, Wahiba Douki, Lotfi Gaha, Asma Ezzaher, Anwar Mechri, Mohamed Fadhel Najjar, Fadoua Neffati, Asma Omezzine, Dhouha Haj Mouhamed |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Adult
Male Risk medicine.medical_specialty Tunisia Biology Young Adult Polymorphism (computer science) Internal medicine Genotype medicine Humans Cotinine Polymorphism Genetic Aryldialkylphosphatase Smoking Confounding Public Health Environmental and Occupational Health Paraoxonase Regular Article General Medicine Odds ratio Middle Aged PON1 Molecular biology Confidence interval Logistic Models Endocrinology Multivariate Analysis biology.protein Female Restriction fragment length polymorphism Multiplex Polymerase Chain Reaction Biomarkers Polymorphism Restriction Fragment Length Thiocyanates |
| Zdroj: | Environmental Health and Preventive Medicine. 17:316-321 |
| ISSN: | 1347-4715 1342-078X |
| Popis: | This study aims to investigate the effect of cigarette smoking on paraoxonase 1 (PON1) activity according to PON1 L55M and PON1 Q192R gene polymorphisms. Our sample included 300 voluntary subjects: 138 nonsmokers and 162 current smokers aged 38.47 ± 21.91 and 35.55 ± 16.03 years, respectively. PON1 activity was determined by kinetic methods. L55M and Q192R gene polymorphisms of PON1 were determined by multiplex polymerase chain reaction (PCR) restriction fragment length polymorphism (RFLP). We found in smokers a significant decrease of PON1 activity before and after adjustment. We noted a significant association between smoking status and lower PON1 activity [odds ratio (OR) = 3.03, confidence interval 95% = 1.5–5.9, p = 0.001]. In smokers, there was significant association between PON1 activity and PON1 L55M polymorphisms (p = 0.01). Also, the 55MM genotype presented the lowest paraoxonase activity, while the 55LL genotype showed the highest one. After adjustment for confounding variables, smokers with PON1 L55M polymorphism had the highest risk for lower PON1 activity; however, PON1 Q192R genotype might protect smokers from decrease in PON1 activity. We found significant interaction between the effect of cigarette smoking and both PON1 L55M and PON1 Q192R polymorphisms on lower PON1 activity. Cigarette smoking was significantly associated with decrease in PON1 activity. Moreover, PON1 L55M polymorphism predisposes smokers to decreased PON1 activity in contrast to PON1 Q192R genotype. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink