Single Nucleotide Polymorphisms in Close Proximity to the Gene Found to Be Associated with Sugar Intake in a Swedish Population

Overview

Journal Nutrients

Date 2021 Nov 27

PMID 34836209

Citations 7

Authors

Suzanne Janzi

Esther Gonzalez-Padilla

Kevin Najafi

Stina Ramne

Emma Ahlqvist

Yan Borne

Emily Sonestedt

Affiliations

Soon will be listed here.

Abstract

Hereditary mechanisms are partially responsible for individual differences in sensitivity to and the preference for sweet taste. The primary aim of this study was to examine the associations between 10 genetic variants and the intake of total sugar, added sugar, and sugars with sweet taste (i.e., monosaccharides and sucrose) in a middle-aged Swedish population. Two single nucleotide polymorphisms (SNPs) within the gene, seven top hits from a genome-wide association study (GWAS) on total sugar intake, and one SNP within the fat mass and obesity associated () gene (the only SNP reaching GWAS significance in a previous study), were explored in relation to various forms of sugar intake in 22,794 individuals from the Malmö Diet and Cancer Study, a population-based cohort for which data were collected between 1991-1996. Significant associations ( = 6.82 × 10 - 1.53 × 10) were observed between three SNPs (rs838145, rs838133, and rs8103840) in close relation to the gene with high Linkage Disequilibrium, and all the studied sugar intakes. For the rs11642841 within the gene, associations were found exclusively among participants with a body mass index ≥ 25 ( < 5 × 10). None of the remaining SNPs studied were associated with sugar intake in our cohort. A further GWAS should be conducted to identify novel genetic variants associated with the intake of sugar.

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