The role of genetic variation in TCF7L2 and KCNJ11, dietary intake, and physical activity on fasting plasma glucagon-like peptide-1 in male adolescents

  • Harry Freitag Luglio Department of Nutrition and Health, Universitas Gadjah Mada Medical School, Yogyakarta, Central Java http://orcid.org/0000-0001-5035-258X
  • Emy Huriyati Department of Nutrition and Health, Universitas Gadjah Mada Medical School, Yogyakarta, Central Java
DOI: https://doi.org/10.14238/pi57.5.2017.239-45
Keywords: KCNJ11, TCF7L2, GLP-1, diet, physical activity

Abstract

Background Transcription factor 7-like 2 (TCF7L2) and potassium voltage-gated channel subfamily j member 11 (KCNJ11) gene polymorphisms have been associated with type 2 diabetes mellitus (T2DM) via regulation of insulin production. Ingested nutrients induce glucagon-like peptide-1 (GLP-1), which in turn induces insulin secretion.

Objective To evaluate the relationship between TCF7L2 and KCNJ11 gene polymorphism, dietary intake, and physical activity on fasting plasma GLP-1 in normal male adolescents.

Methods This observational study with a cross-sectional design included 54 male adolescents selected from high schools in Yogyakarta, Indonesia. Interviews were done to collect data on energy intake and physical activity. The GLP-1 and insulin levels were measured from fasting blood plasma. The TCF7L2 and KCNJ11 gene polymorphisms were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).

Results Fasting GLP-1 was positively correlated with energy intake (r=0.276; P=0.047), but not with physical activity (r=0.011; P=0.936). The GLP-1 concentration was not associated with TCF7L2 and KCNJ11 gene polymorphisms (all P>0.05). In subjects with an EE genotype (KCNJ11), GLP-1 was not correlated with insulin (r=-0.036; P=0.435). However, in subjects with an EK genotype (KCNJ11), GLP-1 was positively correlated with insulin (r=0.394; P=0.026).

Conclusion GLP-1 concentration is positively correlated with body weight. Among male adolescents with a genetic variation in KCNJ11 (EK genotype), there is a significant correlation between GLP-1 and insulin signalling.

Author Biography

Harry Freitag Luglio, Department of Nutrition and Health, Universitas Gadjah Mada Medical School, Yogyakarta, Central Java
Department of Nutrition and Health

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Published
2018-01-05
How to Cite
1.
Luglio H, Huriyati E. The role of genetic variation in TCF7L2 and KCNJ11, dietary intake, and physical activity on fasting plasma glucagon-like peptide-1 in male adolescents. PI [Internet]. 5Jan.2018 [cited 18Apr.2024];57(5):239-5. Available from: https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/1516
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Vol 57 No 5 (2017): September 2017
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Received 2017-06-10
Accepted 2017-10-16
Published 2018-01-05