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Pizzurro, Daniella M.; Seeley, Mara; Kerper, Laura E.; Beck, Barbara D.
Regulatory toxicology and pharmacology, August 2019, 2019-Aug, 2019-08-00, Letnik: 106Journal Article
Toxicokinetics are important for extrapolating health effects and effect levels observed in laboratory animals to humans for purposes of establishing health-based criteria. We conducted a comprehensive review of key absorption, distribution, metabolism, and excretion (ADME) parameters across different mammalian species for five perfluoroalkyl substances (PFAS) and discussed how these data can be used to inform human health risk assessment of these substances. Our analysis revealed several notable differences among the different PFAS regarding species- and substance-specific tissue partitioning, half-life, and transfer to developing offspring via the placenta or lactation, as well as highlighted data gaps for certain substances. We incorporated these observations in an analysis of whether health-based values for specific PFAS can be applied to other PFAS of differing chain length or toxicological mode of action. Overall, our analysis provides one of the first syntheses of available empirical PFAS toxicokinetic data to facilitate interpreting human relevance of animal study findings and developing health-based criteria for PFAS from such studies. •Given the same serum concentration, humans may be less susceptible than rats to liver effects of perfluorinated compounds.•Offspring/maternal blood levels of perfluorinated compounds are greater in humans than in rats or mice.•Pharmacokinetics should be taken into consideration when grouping PFAS together to establish health-based criteria.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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