Gestational diabetes & diabetes in pregnancy

GLP-1R Polymorphisms Modify the Relationship Between Exposure to Gestational Diabetes Mellitus and Offspring BMI Growth: The EPOCH Study

Diabetes CarePublished Cohort study

Authors' conclusion

GLP-1R polymorphisms modify the association between GDM and BMI growth among youth. Further studies are needed to replicate these findings, and to better understand the mechanisms by which GLP-1R polymorphisms lead to heterogeneity in offspring BMI growth.

Study context

Population
Youth from the EPOCH study, genotyped in childhood (∼10 years); BMI trajectories across childhood and adolescence; OGTT in adolescence (∼16 years)
Participants
464 participants
Exposure
Gestational diabetes mellitus (GDM) exposure vs no exposure, by GLP-1R polymorphism genotype
Outcome
Effect modification by three GLP-1R polymorphisms of the associations between GDM and BMI trajectories, and between GDM and markers of glucose-insulin homeostasis
Methodological detailseffect modification analysis, genetic association
  • Effect modification analysis
  • Genetic association

Main finding

As reported in the abstract

Average BMI by GLP-1R genotype
  • rs10305420 (CT or TT) or rs1042044 (CA or AA) minor allele carriers: GDM exposure associated with higher average BMI; not among major allele homozygotes
  • rs6923761: GDM-exposed GG homozygotes had significantly higher average BMI than all other participants

Observational data: associations, not effects.

Further findings

Markers of glucose-insulin homeostasis · adolescence (∼16 years)

No polymorphisms modified the association between GDM and markers of glucose-insulin homeostasis

Original publication

GLP-1R Polymorphisms Modify the Relationship Between Exposure to Gestational Diabetes Mellitus and Offspring BMI Growth: The EPOCH Study. Diabetes Care. Published 30 May 2025. doi:10.2337/dc25-0194

Composed by AI from the published abstract and checked against it. How Briefs are made →

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