Placental Transfer of PFAS and Their Sex-Specific Associations With Neonatal Thyroid Hormones in a Chinese Birth Cohort.
Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are persistent environmental endocrine-disrupting chemicals that can cross the placental barrier and may disrupt fetal thyroid homeostasis; however, the sex-specific thyroid toxicity of PFAS remains poorly characterized. This study recruited 247 mother-infant pairs f...