Epigenetic Link Between Maternal Nutrition and Preterm Birth Revealed

Strategic Insights -

Research has shed new light on the importance of maternal nutrition during pregnancy, with a study exploring the epigenetic link between maternal dietary protein intake and preterm birth (PTB). The study, conducted among Karen and Burmese populations in Myanmar and Thailand, analyzed DNA methylation in placental and cord blood samples from PTB and full-term pregnancies. The findings suggest that mothers who experienced PTB had a significantly lower intake of several nutrients, including protein, which correlated with epigenetic changes in the placenta and cord blood.

Key Takeaways:

  • The study found that mothers who experienced PTB had a significantly lower intake of several nutrients, including protein, compared to those who had full-term pregnancies.
  • DNA methylation profiling revealed hypomethylation of the LIPF promoter in placenta and hypermethylation of the SSB promoter in cord blood, with corresponding downregulation of SSB gene expression.
  • Gene ontology analysis highlighted PTB-specific enrichment in inflammatory, developmental, and metabolic pathways, with cord blood notably enriched in genes involved in 'embryo development ending in birth.'
  • Low protein intake correlated with SSB hypermethylation and differential methylation of IGKV1D-39.
  • The study suggests that protein deficiency may epigenetically predispose to PTB and provide potential biomarkers for early detection and intervention.

Statistics:

  • 13-06-2016: The clinical trial was registered on ClinicalTrials.gov registry, under NCT02797327.
  • 2025: The year the research was published in npj Science of Food.
  • 9(1):206: The issue and page number where the research was published in npj Science of Food.
  • 14197: The postal code of Nature Portfolio's address in Heidelberger Platz 3, Berlin.
  • 31: (NewsRx) October, the day the news article was published.

Sources:

  • Placental and cord blood DNA methylation in preterm birth: exploring the epigenetic role of maternal dietary protein. npj Science of Food, 2025;9(1):206.
  • NewsRx. Findings on Dietary Proteins Described by Researchers at Sidra Medicine (Placental and cord blood DNA methylation in preterm birth: exploring the epigenetic role of maternal dietary protein). Health & Medicine Week. October 31, 2025; p 1690.