LATEST: Air pollution exposure is associated with gene expression in children (December 2024)
08/01/2025 - Siddhartha Das et al. Environmental Epigenetics. LongITools authors: Siddhartha Das, Amanda Rundblad, Irene Fontes Marques, Ana Goncalves Soares, Vincent Jaddoe, Jason Matthews, Kirsten Holven, Nicholas Timpson, Janine Felix, Stine Marie Ulven - University of Oslo, Erasmus MC, University of Bristol
Cohort(s): Generation R, ALSPAC
In this paper we aimed to study the associations between environmental exposures, including particulate matter less than 2.5uM or 10uM (PM2.5 or PM10), nitrogen dioxide as well as natural spaces, and gene expression in children. Among the environmental exposure, PM2.5 exposure was associated with the largest number of genes, and most of the genes were negatively associated. The associated genes enriched for innate immune response pathways including interferon alpha and gamma response that are involved in response to bacterial and viral infection. Hence, our research suggests that exposure to PM2.5 in early life may compromise the immune system response against microbial infection and this could have adverse implications in later life.