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Taste genes associated with dental caries
1Center for Oral Health Research in Appalachia, University of Pittsburgh, PA, USA.
Journal of Dental Research
|September 23, 2010
Summary
Genetic variations in taste genes (TAS2R38, TAS1R2) are linked to dental caries risk and protection. This study explored the connection between genetic factors, taste perception, and tooth decay in families.
Area of Science:
- Genetics
- Oral Health
- Nutrition
Background:
- Dental caries result from genetic and environmental interactions, including diet.
- Genetic variations influence taste preferences and dietary habits.
- Taste pathway genes may play a role in susceptibility or resistance to dental caries.
Purpose of the Study:
- To investigate the association between genetic variations in taste pathway genes (TAS2R38, TAS1R2, GNAT3) and dental caries risk.
- To analyze the relationship between genetic variations in taste genes and caries protection.
- To explore the genetic underpinnings of dietary influences on oral health.
Main Methods:
- Recruitment of families through the Center for Oral Health Research in Appalachia (COHRA).
- Collection of biological samples, demographic data, and clinical oral health assessments, including caries scores.
- Analysis of multiple single-nucleotide polymorphism (SNP) assays for TAS2R38, TAS1R2, and GNAT3 using transmission disequilibrium test (TDT) in primary, mixed, and permanent dentition groups.
Main Results:
- Statistically significant associations were identified between genetic variations in TAS2R38 and TAS1R2 and dental caries risk.
- Significant associations were also observed for caries protection related to TAS2R38 and TAS1R2.
- No significant associations were reported for GNAT3 in this study.
Conclusions:
- Genetic variations in TAS2R38 and TAS1R2 are associated with dental caries risk and/or protection.
- These findings highlight the role of genetic factors in taste perception influencing oral health outcomes.
- Further research can explore targeted interventions based on genetic predispositions to dental caries.
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