Journal
FLAVOUR AND FRAGRANCE JOURNAL
Volume 26, Issue 4, Pages 286-294Publisher
WILEY
DOI: 10.1002/ffj.2074
Keywords
sweet; taste; behaviour; genetics; receptor
Categories
Funding
- NIH [R01DC00882, R01AA11028, R03TW007429]
- Ajinomoto Amino Acid Research Program
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Sweet taste is a powerful factor influencing food acceptance. There is considerable variation in sweet taste perception and preferences within and among species. Although learning and homeostatic mechanisms contribute to this variation in sweet taste, much of it is genetically determined. Recent studies have shown that variation in the T1R genes contributes to within-and between-species differences in sweet taste. In addition, our ongoing studies using the mouse model demonstrate that a significant portion of variation in sweetener preferences depends on genes that are not involved in peripheral taste processing. These genes are likely involved in central mechanisms of sweet taste processing, reward and/or motivation. Genetic variation in sweet taste not only influences food choice and intake, but is also associated with proclivity to drink alcohol. Both peripheral and central mechanisms of sweet taste underlie correlation between sweet-liking and alcohol consumption in animal models and humans. All these data illustrate complex genetics of sweet taste preferences and its impact on human nutrition and health. Identification of genes responsible for within-and between-species variation in sweet taste can provide tools to better control food acceptance in humans and other animals. Copyright (C) 2011 John Wiley & Sons, Ltd.
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