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Variations in TAS1R taste receptor gene family modify food intake and gastric cancer risk in a Korean population
Author(s) -
Choi JeongHwa,
Lee Jeonghee,
Choi Il Ju,
Kim YoungWoo,
Ryu Keun Won,
Kim Jeongseon
Publication year - 2016
Publication title -
molecular nutrition and food research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.495
H-Index - 131
eISSN - 1613-4133
pISSN - 1613-4125
DOI - 10.1002/mnfr.201600145
Subject(s) - taste , cancer , taste receptor , korean population , gene , genetics , population , receptor , biology , medicine , food science , endocrinology , cancer research , environmental health
Scope Human taste receptor type 1 ( TAS1R , T1R ) gene family mediates the perception of umami and sweet tastes and regulates metabolism. This study investigated whether variants in the TAS1R are associated with food intake and susceptibility to gastric cancer (GC). Methods and results A total of 1131 Koreans including 377 GC cases were analyzed to determine the dietary intake and genotype for 25 variants in TAS1R genes. Among the genotyped polymorphisms, six loci with a minor allele frequency >0.05 were tested for an association with dietary intake and GC risk. Findings suggest that TAS1R polymorphisms were associated with a variety of food intake that is beyond the known T1R‐taste association. Furthermore, differential consumption for cigarettes and citrus fruits by TAS1R genetic variants may be linked to GC risk in males and females, respectively. Additionally, in males, TAS1R1 rs34160967 heterozygote showed an increased risk of GC (odds ratio: 1.52, 95% confidence interval: 1.10–2.09), independent of dietary intake. However, this GC‐risk effect of TAS1R variants was not evident in females. Conclusions Genetic variants in TAS1R were associated with dietary consumption, which may be associated with GC risk. TAS1R1 rs34160967 may also modify the risk for GC independent of diet in Korean males.