Sensory Study: Taste and Tongue Biology
Completed
Conditions studied: Healthy Adults
In brief
Researchers will investigate the correlation between a) self-reported dietary intake of foods and beverages, b) intensity of sucrose stimuli, and c) liking rating of sweet stimuli, with the relative expression of the taste receptor genes from human fungiform papillae (TAS1R2 and TAS1R3). \* This research will provide new information on how sweet taste perception is regulated. * The hypothesis: Greater dietary consumption of sugar and sweet foods is associated with reduced expression of the sweet taste receptors. * The results of this study could help to identify pathways to help modify sweet taste perception by uncovering this mechanism. Participants will sample solutions prepared with sweet ingredients, provide salivary DNA, and collect fungiform papillae. This will allow researchers and investigators to compare the relationship between the sweetness of stimuli, genetic differences in sweet taste receptors, and expression levels of sweet taste receptor genes.
Key facts
- Study ID
- NCT05985928
- Run by
- University of Massachusetts, Amherst
- People needed
- 121
- Starts
- 2023-03-20
- Expected to finish
- 2025-05-20
- Last updated by the study team
- 2025-08-05
Who can join
Age: 18 and older, up to 45. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- between 18 and 45 years old,
- have no tongue or cheek piercings,
- not a user of tobacco products or electronic cigarettes (within the last year),
- no known defects in taste or smell,
- not pregnant or breastfeeding,
- no history of chronic pain in the mouth,
- not taking any prescription pain medication,
- not taking any blood thinners,
- no history of cancer or cancer treatment,
- not diabetic or restricting intake of sugars for medical reasons, under the direction of a physician or healthcare provider
- willing to undergo the Fungiform Papillae biopsy procedure
- willing to provide salivary DNA
- Not currently experiencing any COVID-19 symptoms
- Not recently diagnosed (in the last 30 days) with COVID-19
- No history of high blood pressure
Where it is running
- University of Massachusetts — Amherst, Massachusetts, United States
Full record on ClinicalTrials.gov
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