Category
Three-Minute Thesis
Description
Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals ubiquitous in environmental and biological matrices, with growing evidence implicating prenatal exposure in adverse developmental outcomes. This systematic review synthesizes cohort-based evidence published between 2016 and 2026 to evaluate the effects of maternal PFAS exposure on fetal growth and early childhood development. Studies were identified through PubMed, Google Scholar, and Scopus, and were included if they assessed prenatal PFAS concentrations in relation to birth weight, gestational age, fetal growth trajectories, or childhood anthropometric outcomes. Findings across multiple cohorts consistently link higher prenatal exposure to perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) with reduced birth weight, decreased head circumference, and disrupted fetal growth patterns. Sex-specific vulnerability and maternal metabolic risk factors emerged as potential effect modifiers. Longitudinal data suggest downstream consequences, including catch-up growth, altered weight-for-length ratios, and elevated risk of early adiposity and cardiometabolic dysfunction. Emerging research further highlights the relevance of PFAS mixture effects and paternal exposure pathways. Collectively, this evidence indicates that prenatal PFAS exposure poses measurable risks to fetal and early childhood health, underscoring the urgency of exposure mitigation strategies, targeted public health interventions, and more stringent regulatory standards to safeguard vulnerable populations.
Per- and Polyfluoroalkyl Substances (PFAS)Exposure and Its Influence on Fetal and Early Childhood Development
Three-Minute Thesis
Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic chemicals ubiquitous in environmental and biological matrices, with growing evidence implicating prenatal exposure in adverse developmental outcomes. This systematic review synthesizes cohort-based evidence published between 2016 and 2026 to evaluate the effects of maternal PFAS exposure on fetal growth and early childhood development. Studies were identified through PubMed, Google Scholar, and Scopus, and were included if they assessed prenatal PFAS concentrations in relation to birth weight, gestational age, fetal growth trajectories, or childhood anthropometric outcomes. Findings across multiple cohorts consistently link higher prenatal exposure to perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) with reduced birth weight, decreased head circumference, and disrupted fetal growth patterns. Sex-specific vulnerability and maternal metabolic risk factors emerged as potential effect modifiers. Longitudinal data suggest downstream consequences, including catch-up growth, altered weight-for-length ratios, and elevated risk of early adiposity and cardiometabolic dysfunction. Emerging research further highlights the relevance of PFAS mixture effects and paternal exposure pathways. Collectively, this evidence indicates that prenatal PFAS exposure poses measurable risks to fetal and early childhood health, underscoring the urgency of exposure mitigation strategies, targeted public health interventions, and more stringent regulatory standards to safeguard vulnerable populations.
