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Identification of Micro- and Nanoplastic Particles in Postnatal Sprague-Dawley Rat Offspring after Maternal Inhalation Exposure Throughout Gestation
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Identification of micro- and nanoplastic particles in postnatal sprague-dawley rat offspring after maternal inhalation exposure throughout gestation
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Pregnant rats that inhaled micro- and nanoplastic particles throughout gestation passed them to their offspring, with plastic particles detected in pup tissues after birth. This is one of the first studies to show that inhaled microplastics can cross the placental barrier during pregnancy and persist in offspring, raising concerns about prenatal exposure from airborne plastic pollution.
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This comprehensive review synthesizes recent evidence showing that micro- and nanoplastics accumulate in multiple human organs and examines the biological pathways by which these particles could potentially promote cancer development. As plastic particles are now confirmed inside human tissues, understanding their carcinogenic potential has become one of the most urgent questions in environmental health research.
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Researchers reviewed evidence from cell and animal studies on the toxic effects of micro- and nanoplastics, finding that these particles can cause inflammation, oxidative stress, and organ damage in laboratory models, raising concern about what chronic low-level human exposure might mean for long-term health.
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