Link Between Placental Changes and Food Allergies Revealed

A recent study has revealed that children with persistent food allergies exhibit unique placental DNA methylation and inflammatory profiles. Researchers analyzed data from 1,518 children in the COCOA study, tracking their health until the age of seven. They found that those with early persistent food allergies had elevated levels of specific cytokines, indicating a distinct immune response compared to children without allergies.

The study identified four trajectories of food allergies among the participants: no food allergy, early remission, early persistent food allergy, and late remission. Notably, children with early persistent food allergies showed significant hypermethylation of genes associated with immune regulation, suggesting that these epigenetic changes may contribute to the development and persistence of food allergies in childhood. Further research is needed to explore the causal relationships between these biological changes and food allergy trajectories.