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Nutrient consumption-dependent association of a glucagon-like peptide-1 receptor gene polymorphism with insulin secretion.


ABSTRACT: Since type 2 diabetes (DM) is a life-style related disease, life-style should be considered when association between genetic factors and DM are examined. However, most studies did not examine genetic associations in consideration with lifestyle. Glucagon-like peptide-1 (GLP-1) receptor (GLP1R) mediates the insulinotropic action of GLP-1 in ?-cells. We here examined the association while taking into consideration of interactions between the gene polymorphism and various nutrient factors. Participants from the population-based Iwaki study of Japanese subjects held in 2014-2017 with information on nutritional intake evaluated by self-administered dietary history questionnaire, and GLP1R genotype (rs3765467: A/G), were included (n?=?1,560). Although not significant, insulin secretion indices assessed by homeostasis model assessment of ?-cell function (HOMA-?) in subjects with the GG genotype tended to be lower than in those with the AA+AG genotypes in most groups stratified into tertiles based on daily nutrient consumptions (high, middle, and low). Stratification also showed that the GG genotype was a significant risk for decreased insulin secretion (HOMA-????30) even after adjustment for multiple factors (age, body mass index, alcohol consumption), but only in the highest tertiles of energy, protein and carbohydrate consumption in men [odds ratios (95% confidence interval) 3.95 (1.03-15.1), 15.83 (1.58-158.9), and 4.23 (1.10-11.2), respectively]. A polymorphism of the GLP1R gene was associated with decreased insulin secretion in a nutrient consumption-dependent manner in Japanese men, indicating an interaction between GLP1R and nutritional factors in the pathophysiology of DM.

SUBMITTER: Nishiya Y 

PROVIDER: S-EPMC7532183 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Nutrient consumption-dependent association of a glucagon-like peptide-1 receptor gene polymorphism with insulin secretion.

Nishiya Yuki Y   Daimon Makoto M   Mizushiri Satoru S   Murakami Hiroshi H   Tanabe Jutaro J   Matsuhashi Yuki Y   Yanagimachi Miyuki M   Tokuda Itoyo I   Sawada Kaori K   Ihara Kazushige K  

Scientific reports 20201002 1


Since type 2 diabetes (DM) is a life-style related disease, life-style should be considered when association between genetic factors and DM are examined. However, most studies did not examine genetic associations in consideration with lifestyle. Glucagon-like peptide-1 (GLP-1) receptor (GLP1R) mediates the insulinotropic action of GLP-1 in β-cells. We here examined the association while taking into consideration of interactions between the gene polymorphism and various nutrient factors. Particip  ...[more]

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