@article {7738,
	title = {Polymorphisms in sweet taste genes (TAS1R2 and GLUT2), sweet liking, and dental caries prevalence in an adult Italian population.},
	journal = {Genes Nutr},
	volume = {10},
	year = {2015},
	month = {2015 Sep},
	pages = {485},
	abstract = {<p>The aim of the study was to assess the relationship between sweet taste genes and dental caries prevalence in a large sample of adults. In addition, the association between sweet liking and sugar intake with dental caries was investigated. Caries was measured by the decayed, missing, filled teeth (DMFT) index in 647 Caucasian subjects (285 males and 362 females, aged 18-65~years), coming from six villages in northeastern Italy. Sweet liking was assessed using a 9-point scale, and the mean of the liking given by each individual to specific sweet food and beverages was used to create a sweet liking score. Simple sugar consumption was estimated by a dietary history interview, considering both added sugars and sugar present naturally in foods. Our study confirmed that polymorphisms in TAS1R2 and GLUT2 genes are related to DMFT index. In particular, GG homozygous individuals for rs3935570 in TAS1R2 gene (p value~=~0.0117) and GG homozygous individuals for rs1499821 in GLUT2 gene (p value~=~0.0273) showed higher DMFT levels compared to both heterozygous and homozygous for the alternative allele. Furthermore, while the relationship sugar intake-DMFT did not achieve statistical significance (p value~=~0.075), a significant association was identified between sweet liking and DMFT (p value~=~0.004), independent of other variables. Our study showed that sweet taste genetic factors contribute to caries prevalence and highlighted the role of sweet liking as a predictor of caries risk. Therefore, these results may open new perspectives for individual risk identification and implementation of target preventive strategies, such as identifying high-risk patients before caries development.</p>},
	issn = {1555-8932},
	doi = {10.1007/s12263-015-0485-z},
	author = {Robino, Antonietta and Bevilacqua, Lorenzo and Pirastu, Nicola and Situlin, Roberta and Di Lenarda, Roberto and Gasparini, Paolo and Navarra, Chiara Ottavia}
}
@article {3507,
	title = {A population-based approach to study the impact of PROP perception on food liking in populations along the Silk Road.},
	journal = {PLoS One},
	volume = {9},
	year = {2014},
	month = {2014},
	pages = {e91716},
	abstract = {<p>Taste is one of the main factors determining food choices. Differences in PROP bitter taste perception have been implicated in individual differences in food preferences and selection. The present study examined associations between, PROP phenotypes, self-reported food liking and TAS2R38 polymorphisms, the major gene implicated in PROP bitterness, in six different populations of the Caucasus and Central Asia, located along the ancient Silk Road. Differences in the distribution of PROP phenotypes across populations were detected, with a higher frequency of super tasters in Tajikistan (31.3\%) and Armenia (39.0\%) and a higher frequency of non tasters in Georgia (50.9\%). While no relationships were observed between PROP phenotypes and food liking using standard statistical tests, we used an approach based on comparison of distance matrices derived from these data. The first matrix compared the food liking ratings of each population to all others pairwise using the Kruskal-Wallis test (at p<0.00063), and the second one compared the distribution of PROP phenotypes across all populations in a similar manner calculating the chi-square statistic as a distance measure. A strong correlation between the two matrices was found (Mantel test: r = 0.67, p-value = 0.03), suggesting that the pattern of food liking across populations was closely related to the distribution of PROP phenotypes. This same relationship was not observed when TAS2R38 genotypes were substituted for PROP phenotypes in this analysis. Our data suggest that a population-based approach utilizing distance matrices is a useful technique for detecting PROP-related differences in food liking and can be applied to other taste phenotypes.</p>},
	keywords = {Armenia, Azerbaijan, Food, Genetic Association Studies, Genotype, Haplotypes, Humans, Polymorphism, Single Nucleotide, Propylthiouracil, Receptors, G-Protein-Coupled, Tajikistan, Taste, Taste Perception, Uzbekistan},
	issn = {1932-6203},
	doi = {10.1371/journal.pone.0091716},
	author = {Robino, Antonietta and Mezzavilla, Massimo and Pirastu, Nicola and Dognini, Maddalena and Tepper, Beverly J and Gasparini, Paolo}
}
