Acta Scientiarum Polonorum Technologia Alimentaria

ISSN:1644-0730, e-ISSN:1898-9594

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original articleIssue 19 (1) 2020 pp. 109-122

Joanna Mikołajczyk-Stecyna, Anna M. Malinowska, Agata Chmurzynska

Poznan University of Life Sciences, Poland

Polymorphism of TAS2R3, TAS2R5, TAS2R19, and TAS2R50 genes and bitter food intake frequency in elderly woman

Abstract

Background. Taste sensitivity is one of the most important biological determinants of food choice. Polymorphisms within the bitter taste receptor genes TAS2R3 (rs765007), TAS2R5 (rs2234012), TAS2R19 (rs10772420), and TAS2R50 (rs1376251) may affect bitter taste sensitivity and thus food choices and thereby metabolic biomarkers in blood. The aim of this study was to investigate associations between selected TAS2Rs  single nucleotide polymorphisms (SNPs) and the choice of the most popular bitter food items in    a Polish population, BMI and blood biomarkers in elderly women.

Material and methods. The study group included 116 Polish women over 60 years of age. Intake of Brassica vegetables, grapefruit and coffee was assessed using a food frequency questionnaire. Biochemical parameters were measured using the spectrophotometric method. Genotyping was performed using the high resolution melting method.

Results. We show an association between SNPs of the TAS2R3 gene and the frequency of Brassica vegetable intake, between SNPs of the TAS2R5 gene and the frequency of grapefruit intake, and between the simultaneous effects of polymorphisms within TAS2R3 and TAS2R5 and the frequency of eating Brassica vegetables in general. We found no association between the genetic polymorphisms of TAS2R19 or TAS2R50 that were examined and the frequency of bitter-tasting food intake. Moreover, the SNPs of the selected TAS2Rs genes may be associated with the lipid profile, serum level of glucose and CRP, depending on the frequency of consumption of particular bitter-tasting items.

Conclusions. The genetic polymorphisms analyzed in the study seem not to contribute significantly to variability in bitter-tasting food intake in elderly women, although they may influence metabolic biomarkers dependent on the intake of particular bitter-tasting food items.

Keywords: bitter taste, blood lipid biomarkers, consumption frequency, genetic polymorphism, TAS2R3, TAS2R5, TAS2R19, TAS2R50
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https://www.food.actapol.net/volume19/issue1/10_1_2020.pdf

https://doi.org/10.17306/J.AFS.2020.0729

For citation:

MLA Mikołajczyk-Stecyna, Joanna, et al. "Polymorphism of TAS2R3, TAS2R5, TAS2R19, and TAS2R50 genes and bitter food intake frequency in elderly woman." Acta Sci.Pol. Technol. Aliment. 19.1 (2020): 109-122. https://doi.org/10.17306/J.AFS.2020.0729
APA Mikołajczyk-Stecyna J., Malinowska A. M., Chmurzynska A. (2020). Polymorphism of TAS2R3, TAS2R5, TAS2R19, and TAS2R50 genes and bitter food intake frequency in elderly woman. Acta Sci.Pol. Technol. Aliment. 19 (1), 109-122 https://doi.org/10.17306/J.AFS.2020.0729
ISO 690 MIKOłAJCZYK-STECYNA, Joanna, MALINOWSKA, Anna M., CHMURZYNSKA, Agata. Polymorphism of TAS2R3, TAS2R5, TAS2R19, and TAS2R50 genes and bitter food intake frequency in elderly woman. Acta Sci.Pol. Technol. Aliment., 2020, 19.1: 109-122. https://doi.org/10.17306/J.AFS.2020.0729