Journal of dentistry · 2012
Genetic variation in MMP20 contributes to higher caries experience.
Сравнительное исследованиеСтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Tannure Patricia Nivoloni, Küchler Erika Calvano, Lips Andrea, Costa Marcelo de Castro, Luiz Ronir Raggio, Granjeiro Jose Mauro, Vieira Alexandre Rezende
Аннотация
UNLABELLED: Matrix metalloproteinases play an important role during the initial process of enamel development and therefore may play a role in caries.
OBJECTIVES: To evaluate the association between MMP20 and caries experience in Brazilian children.
METHODS: Eligible unrelated children with or without caries were evaluated using a cohort design. Demographic data and oral health habits were obtained though a questionnaire. Caries data was collected by clinical examination. Genotyping of the selected polymorphism was carried out by real-time PCR from genomic DNA. Allele and genotype frequencies were compared between groups with distinct caries experience and oral health habits.
RESULTS: Of 388 subjects, 161 were caries free children. There were no differences between caries levels and genotype distribution in the total cohort. When ethnic background was considered, differences in genotype distribution were observed in caries free children vs. children with caries in Caucasians (p=0.03). Differences could also be seen when poor oral hygiene was used to stratify the analysis (p=0.02). Regression analysis, adjusted for genotype and ethnicity, confirmed that ingestion of sweets between meals increases the risk of presenting carious lesions (p=0.00001; OR=2.33; 95%CI 1.53-3.54).
CONCLUSION: Variation in MMP20 may be associated with caries experience mainly in Caucasian subjects with poor oral health habits.
OBJECTIVES: To evaluate the association between MMP20 and caries experience in Brazilian children.
METHODS: Eligible unrelated children with or without caries were evaluated using a cohort design. Demographic data and oral health habits were obtained though a questionnaire. Caries data was collected by clinical examination. Genotyping of the selected polymorphism was carried out by real-time PCR from genomic DNA. Allele and genotype frequencies were compared between groups with distinct caries experience and oral health habits.
RESULTS: Of 388 subjects, 161 were caries free children. There were no differences between caries levels and genotype distribution in the total cohort. When ethnic background was considered, differences in genotype distribution were observed in caries free children vs. children with caries in Caucasians (p=0.03). Differences could also be seen when poor oral hygiene was used to stratify the analysis (p=0.02). Regression analysis, adjusted for genotype and ethnicity, confirmed that ingestion of sweets between meals increases the risk of presenting carious lesions (p=0.00001; OR=2.33; 95%CI 1.53-3.54).
CONCLUSION: Variation in MMP20 may be associated with caries experience mainly in Caucasian subjects with poor oral health habits.
Предметные рубрики MeSH
AdolescentAsian PeopleBlack PeopleCandyCariostatic AgentsChildChild, PreschoolCohort StudiesCytosineDMF IndexDental CariesDental Devices, Home CareEthnicityFeeding BehaviorFemaleFluoridesGene FrequencyGenetic VariationGenotypeHumansMaleMatrix Metalloproteinase 20Oral HygienePolymorphism, GeneticPolymorphism, Single NucleotideThymineToothbrushingToothpastesWhite People