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By Nika M. A. Van Keeken, Sana Siddiqui, Lea M. Dijksman, Stuart Maudsley, Diana Derval, P. Sytze Van Dam and Bronwen Martin


have contributed equally to this work. Taste perception is controlled by taste cells that are present in the tongue that produce and secrete various metabolic hormones. Recent studies have demonstrated that taste recep-tors in tongue, gut, and pancreas are associated with local hormone secretion. The aim of this study was to determine whether there is a link between taste sensitivity and levels of circulating metabolic hormones in humans and whether taste sensitivity is potentially related to peripheral metabolic regulation. Thirty-one subjects were recruited and sepa-rated into tasters and non-tasters based on their phenol thiocarbamide (PTC) bitter taste test results. Fasting plasma and saliva were collected and levels of hormones and cytokines were assayed. We observed significant differences in both hormone levels and hormone-body mass index (BMI) correlation between tasters and non-tasters. Tasters had higher plasma levels of leptin (p=0.05), tumor necrosis factor-α (TNF-α) (p=0.04), and insulin-like growth factor 1 (IGF-1) (p=0.03). There was also a trend toward increased IGF-1 level

Year: 2016
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