Placental and Cord Blood DNA Methylation Changes Associated With Gestational Diabetes Mellitus in a Marginalized Population: The Untold Role of Saturated Fats
Issued Date
2025-01-01
Resource Type
ISSN
16134125
eISSN
16134133
Scopus ID
2-s2.0-105003804739
Journal Title
Molecular Nutrition and Food Research
Rights Holder(s)
SCOPUS
Bibliographic Citation
Molecular Nutrition and Food Research (2025)
Suggested Citation
Ahmad F., Uzair S.A., Lakshmanan A.P., Alabduljabbar S., Ahmed S.H., Kabeer B.S.A., Marr A.K., Kino T., Brummaier T., McGready R., Nosten F., Chaussabel D., Khodor S.A., Terranegra A. Placental and Cord Blood DNA Methylation Changes Associated With Gestational Diabetes Mellitus in a Marginalized Population: The Untold Role of Saturated Fats. Molecular Nutrition and Food Research (2025). doi:10.1002/mnfr.70058 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/110020
Title
Placental and Cord Blood DNA Methylation Changes Associated With Gestational Diabetes Mellitus in a Marginalized Population: The Untold Role of Saturated Fats
Corresponding Author(s)
Other Contributor(s)
Abstract
The role of DNA methylation (DNAm) and its modulation by dietary factors in gestational diabetes mellitus (GDM) remains underexplored, particularly in marginalized populations. This study investigates DNAm alterations in GDM-exposed cord blood and placenta and their association with maternal dietary quality and single nutrient intake in a low-income population from the Myanmar–Thailand border. A matched case–control design (GDM: n = 38, controls: n = 34) was selected from a Myanmar–Thailand pregnancy cohort. Dietary intake was assessed via 24-h recalls and analyzed using Nutritionist Pro, with dietary quality evaluated by the healthy eating index (HEI). DNAm was profiled in 72 cord blood and 72 placental samples using the Infinium MethylationEPIC array. Significant differences in dietary vitamin D, total folate, and saturated fat intake were observed between the groups. RnBeads analyses revealed hypomethylation as the predominant DNAm pattern in GDM, particularly at ADORA2B (placenta) and ZFP57 (cord blood) promoters. The excessive intake of saturated fats was associated with GDM hypomethylation profiles and negatively correlated with ZFP57 methylation levels. This study highlights the influence of saturated fat intake on epigenetic changes in pregnancy, revealing potential biomarkers for GDM and emphasizing the need for tailored, population-specific nutritional interventions to mitigate transgenerational health impacts.