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논문 기본 정보

자료유형
학술저널
저자정보
Jin Heejin (Seoul National University) 곽수헌 (서울대학교병원) 윤지원 (서울대학교) 이상헌 (단국대학교) 박경수 (서울대학교) Won Sungho (Seoul National University) Cho Nam H. (Department of Preventive Medicine Ajou University School of Medicine Suwon Korea)
저널정보
대한당뇨병학회 Diabetes and Metabolism Journal Diabetes and Metabolism Journal Vol.47 No.2
발행연도
2023.3
수록면
255 - 266 (12page)
DOI
10.4093/dmj.2021.0375

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Background: Genome-wide association studies (GWAS) on type 2 diabetes mellitus (T2DM) have identified more than 400 distinct genetic loci associated with diabetes and nearly 120 loci for fasting plasma glucose (FPG) and fasting insulin level to date. However, genetic risk factors for the longitudinal deterioration of FPG have not been thoroughly evaluated. We aimed to identify genetic variants associated with longitudinal change of FPG over time.Methods: We used two prospective cohorts in Korean population, which included a total of 10,528 individuals without T2DM. GWAS of repeated measure of FPG using linear mixed model was performed to investigate the interaction of genetic variants and time, and meta-analysis was conducted. Genome-wide complex trait analysis was used for heritability calculation. In addition, expression quantitative trait loci (eQTL) analysis was performed using the Genotype-Tissue Expression project.Results: A small portion (4%) of the genome-wide single nucleotide polymorphism (SNP) interaction with time explained the total phenotypic variance of longitudinal change in FPG. A total of four known genetic variants of FPG were associated with repeated measure of FPG levels. One SNP (rs11187850) showed a genome-wide significant association for genetic interaction with time. The variant is an eQTL for NOC3 like DNA replication regulator (<i>NOC3L</i>) gene in pancreas and adipose tissue. Furthermore, <i>NOC3L</i> is also differentially expressed in pancreatic β-cells between subjects with or without T2DM. However, this variant was not associated with increased risk of T2DM nor elevated FPG level.Conclusion: We identified rs11187850, which is an eQTL of <i>NOC3L</i>, to be associated with longitudinal change of FPG in Korean population.

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