The primary goal of this project is to support National Toxicology Program (NTP) hazard assessment activities targeted toward the prevention of diseases or adverse effects caused by exposure to chemical or physical agents. The NTP is an interagency program headquartered at NIEHS that was established by the Secretary of Health and Human Services to provide information about potentially toxic chemicals to regulatory and research agencies and the public, coordinate toxicology research and testing activities, and strengthen the science base in toxicology. This project obtains comprehensive toxicological data, from experimental in vivo and in vitro models, on chemical substances or physical agents that may pose human health safety issues. Potential diseases of concern that may be induced by these agents include cancer, reproductive and developmental effects, cardiovascular disease, neurological disease, and effects on the immune system. Over 100 compounds are currently being evaluated under this project. A full listing of all compounds under study at any given time and the types of studies being employed can be found on the NTP website at http://ntp.niehs.nih.gov/testing/types/cartox/msr/msr.html. Highlighted areas of study in this year were: Cell Phone radiation, AIDS therapeutic drug combinations, mixtures of polycyclic aromatic compounds, sulfolane, perfluoroalkyl substances (PFAS), Bisphenol A related compounds, ionic liquids, flame retardants, botanical dietary supplements, mold, nanoscale materials, phenolic benzotriazoles, phthalates, C9 alkylbenzenes, vanadium compounds, and naturally occurring asbestos.

Project Start
Project End
Budget Start
Budget End
Support Year
4
Fiscal Year
2019
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Indirect Cost
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Catlin, Natasha R; Willson, Cynthia J; Creasy, Dianne M et al. (2018) Differentiating between Testicular Toxicity and Sexual Immaturity in Ortho-phthalaldehyde Inhalation Toxicity Studies in Rats and Mice. Toxicol Pathol 46:753-763
Sirenko, Oksana; Parham, Frederick; Dea, Steven et al. (2018) Functional and Mechanistic Neurotoxicity Profiling Using Human iPSC-Derived Neural 3D Cultures. Toxicol Sci :
Rider, Cynthia V; Walker, Nigel J; Waidyanatha, Suramya (2018) Getting to the Root of the Matter: Challenges and Recommendations for Assessing the Safety of Botanical Dietary Supplements. Clin Pharmacol Ther 104:429-431
Shipkowski, Kelly A; Betz, Joseph M; Birnbaum, Linda S et al. (2018) Naturally complex: Perspectives and challenges associated with Botanical Dietary Supplement Safety assessment. Food Chem Toxicol 118:963-971
Catlin, Natasha; Waidyanatha, Suramya; Mylchreest, Eve et al. (2018) Embryo-fetal development studies with the dietary supplement vinpocetine in the rat and rabbit. Birth Defects Res 110:883-896
Wyde, Michael E; Horn, Thomas L; Capstick, Myles H et al. (2018) Effect of cell phone radiofrequency radiation on body temperature in rodents: Pilot studies of the National Toxicology Program's reverberation chamber exposure system. Bioelectromagnetics 39:190-199
Waidyanatha, Suramya; Black, Sherry R; Snyder, Rodney W et al. (2018) Disposition and metabolism of the bisphenol analogue, bisphenol S, in Harlan Sprague Dawley rats and B6C3F1/N mice and in vitro in hepatocytes from rats, mice, and humans. Toxicol Appl Pharmacol 351:32-45
Waidyanatha, Suramya; Ryan, Kristen; Sanders, J Michael et al. (2018) Disposition of ?-N-methylamino-l-alanine (L-BMAA), a neurotoxin, in rodents following a single or repeated oral exposure. Toxicol Appl Pharmacol 339:151-160
Germolec, Dori R; Shipkowski, Kelly A; Frawley, Rachel P et al. (2018) Markers of Inflammation. Methods Mol Biol 1803:57-79
Collins, B J; Slade, D; Ryan, K et al. (2018) Development and Validation of an Analytical Method to Quantitate Tris(chloroisopropyl)phosphate in Rat and Mouse Plasma using Gas Chromatography with Flame Photometric Detection. J Anal Toxicol :

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