Our findings identified five structural categories of PFAS prone to metabolism. The metabolism pathways of PFAS are highly related to their structures and significantly impact their bioaccumulations and toxicities. We also verified CES1 as an enzyme capable of hydrolyzing diverse PFAS, with strong substrate preferences towards perfluoroalkyl amides. This dataset is not publicly accessible because: Data generated by external academic lab with chemicals provided by EPA under an MTA. EPA’s contribution was providing the PFAS library. It can be accessed through the following means: Contact the corresponding author Hui Peng, Mailing address: Department of Chemistry, University of Toronto, Toronto, Ontario, M5S3H6, Canada. E-mail address: hui.peng@utoronto.ca. Format: Not available. This dataset is associated with the following publication: Han, J., W. Gu, H. Barrett, D. Yang, S. Tang, J. Sun, J. Liu, H. Krause, K. Houck, and H. Peng. A Roadmap to the Structure-Related Metabolism Pathways of Per- and Polyfluoroalkyl Substances in the Early Life Stages of Zebrafish (Danio rerio). ENVIRONMENTAL HEALTH PERSPECTIVES. National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC, USA, 129(7): 077004, (2021).

Perfluorononanoic acid (PFNA) is one of the perfluoroalkyl acids found in the environment and in tissues of humans and wildlife. Prenatal exposure to PFNA negatively impacts survival and development of mice and activates the mouse and human peroxisome proliferator-activated receptor-alpha (PPARα). In the current study, we used PPARα knockout (KO) and 129S1/SvlmJ wild-type (WT) mice to investigate the role of PPARα in mediating PFNA-induced in vivo effects. Pregnant KO and WT mice were dosed orally with water (vehicle control: 10 ml/kg), 0.83, 1.1, 1.5, or 2mg/kg PFNA on gestational days (GDs) 1−18 (day of sperm plug = GD 0). Maternal weight gain, implantation, litter size, and pup weight at birth were unaffected in either strain. PFNA exposure reduced the number of live pups at birth and survival of offspring to weaning in the 1.1 and 2 mg/kg groups in WT. Eye opening was delayed (mean delay 2.1 days) and pup weight at weaning was reduced inWT pups at 2mg/kg. These developmental endpoints were not affected in the KO. Relative liver weight was increased in a dose-dependent manner in dams and pups of theWT strain at all dose levels but only slightly increased in the highest dose group in the KO strain. In summary, PFNA altered liver weight of dams and pups, pup survival, body weight, and development in the WT, while only inducing a slight increase in relative liver weight of dams and pups at 2mg/kg in KO mice. These results suggest that PPARα is an essential mediator of PFNA-induced developmental toxicity in the mouse. This dataset is associated with the following publication: Abbott, B., C. Wolf, J. Schmid, C. Lau, and R. Zehr. Developmental Effects of Perfluorononanoic Acid in the Mouse Are Dependent on Peroxisome Proliferator-Activated Receptor-alpha.. PPAR research. Hindawi Publishing Corporation, New York, NY, USA, 1-11, (2010).

Data for "Kolanczyk RC, Saley MR, Serrano JA, Daley SM, Tapper MA. PFAS Biotransformation Pathways: A Species Comparison Study. Toxics. 2023 Jan 12;11(1):74. doi: 10.3390/toxics11010074. PMID: 36668800; PMCID: PMC9862377.". This dataset is associated with the following publication: Kolanczyk, R., M. Saley, J. Serrano, S. Daley, and M. Tapper. PFAS Biotransformation Pathways: A Species Comparison Study. Toxics. MDPI, Basel, SWITZERLAND, 11(1): 74, (2023).

This dataset contains all underlying data used to generate the figures contained in Gaballah et al. Evaluation of developmental toxicity, developmental neurotoxicity, and tissue dose in zebrafish exposed to GenX and other PFAS. This dataset is associated with the following publication: Gaballah, S., A. Swank, X.M. Howey, J. Sobus, J. Schmid, T. Catron, J. McCord, E. Hines, and M. Strynar. Evaluation of developmental toxicity, developmental neurotoxicity, and tissue dose in zebrafish exposed to GenX and other PFAS. NA. NA (ed.), ENVIRONMENTAL HEALTH PERSPECTIVES. National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC, USA, 128(4): 047005-1 - 047005-22, (2020).

This dataset contains all underlying data used to generate the figures contained in Gaballah et al. Evaluation of developmental toxicity, developmental neurotoxicity, and tissue dose in zebrafish exposed to GenX and other PFAS. This dataset is associated with the following publication: Gaballah, S., A. Swank, X.M. Howey, J. Sobus, J. Schmid, T. Catron, J. McCord, E. Hines, and M. Strynar. Evaluation of developmental toxicity, developmental neurotoxicity, and tissue dose in zebrafish exposed to GenX and other PFAS. NA. NA (ed.), ENVIRONMENTAL HEALTH PERSPECTIVES. National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park, NC, USA, 128(4): 047005-1 - 047005-22, (2020).

This ScienceHub entry was developed for the published paper: Consoer et al., 2016, Toxicokinetics of perfluorooctane sulfonate in rainow trout (Oncorhynchus mykiss), Environ. Toxicol. Chem. 35:717-727. Individual rainbow trout were exposed to PFOS by bolus injection (elimination studies) or by adding PFOS to incoming water (branchial uptake studies). The trout were fitted with indwelling catheters and urinary cannulae to permit periodic collection of blood and urine. Additional sampling was conducted to evaluate PFOS uptake from and elimination to respired water. Data obtained from each fish was evaluated using a clearance-volume pharmacokinetic model. Modeled kinetic parameters were then averaged to develop summary statistics which were used as a basis for interpreting modeled results and making comparisons to a previous study of rainbow trout exposed to perfluorooctanoate (PFOA; Consoer et al., 2014, Aquat. Toxicol. 156:65-73). The results of this study, combined with that of the previous PFOA study, suggest that PFOA is a substrate for renal transporters in fish while glomerular filtration alone may be sufficient to explain the observed renal elimination of PFOS. These findings demonstrate that models developed to predict the bioaccumulation of perfluoroalkyl acids by fish must account for differences in renal clearance of individual compounds. This dataset is associated with the following publication: Consoer, D., A. Hoffman , P. Fitzsimmons , P. Kosian , and J. Nichols. Toxicokinetics of perfluorooctane sulfonate in rainbow trout (Oncorhynchus mykiss). ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, USA, 35(3): 717-727, (2016).

These data describe the results of a controlled laboratory experiment evaluating the effect of pesticides on the development of zebrafish. Parameters described include the length of the fish and the pericardial area of the fish.

These data describe the results of a controlled laboratory experiment evaluating the effect of pesticides on the development of zebrafish. Parameters described include the length of the fish and the pericardial area of the fish.

Current studies on nontarget analysis and toxicities of PFASs are disconnected, due to the challenges posed by the large numbers (>1,000) and diverse structures of PFASs. The SECC method provides a high-throughput experimental way to tackle the challenge of prioritizing PFASs according to key proteins, especially when their authentic standards are not available. While this study is focused on hL-FABP due to its critical role in regulating the toxicokinetics of PFASs, the protein-centric method could also be adapted to screen PFASs binding to other key proteins, such as PPARs. Computational toxicology is the predominant strategy for high-throughput predictions of toxicities of chemical contaminants. This dataset is not publicly accessible because: Data generated and owned by external academic lab with chemicals provided by the EPA under an MTA. EPA's contribution was assisting in manuscript writing. It can be accessed through the following means: Contact the Corresponding author: Hui Peng, e-mail: hui.peng@utoronto.ca, Department of Chemistry, University of Toronto, Toronto, Ontario, M5S3H6, Canada. Format: Not available. This dataset is associated with the following publication: Yang, D., J. Han, D. Ross Hall, J. Sun, J. Fu, S. Kutarna, K. Houck, C. LaLone, J. Doering, C. Ng, and H. Peng. Nontarget Screening of Per- and Polyfluoroalkyl Substances Binding to Human Liver Fatty Acid Binding Protein. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 54(9): 5676-5686, (2020).