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Your Environment. Your Health.

Kristen R. Ryan, Ph.D.

Systems Toxicology Group

Much of the work carried out by DTT is in support of the National Toxicology Program (NTP), an interagency partnership of the Food and Drug Administration, National Institute for Occupational Safety and Health, and NIEHS.

Visit the NTP Website
Kristen R. Ryan, Ph.D.
Kristen Ryan, Ph.D.
Tel 984-287-3179
P.O. Box 12233
Mail Drop K2-12
Durham, N.C. 27709

Kristen Ryan, Ph.D., DABT, is a toxicologist in the Toxicology Branch of the Division of Translational Toxicology (DTT) at the National Institute of Environmental Health Sciences. As a study scientist, Ryan collaborates with members of the Toxicology Branch as well as various intramural and extramural partners to investigate the safety of chemical agents nominated to the NTP toxicity testing program. Her primary responsibilities are to design and coordinate studies to evaluate the potential toxicity and carcinogenicity of various agents. In addition, she is responsible for communicating study results by peer-reviewed publication in NTP Technical Reports and manuscripts in scientific journals. Ryan is the currently the project leader for NTP studies of tris(chloropropyl)phosphate, echinacea, hydroxyurea, and ionic liquids. She also is a project coordinator for AIDs research studies, algae bloom toxins, and zebrafish-related research (SEAZIT).

Ryan's research interests include examining the relationship between exposure to various chemicals in the environment and developmental neurotoxicity or neurodegeneration. She participates in activities to enhance neurotoxicity testing within the NTP through protocol design and interpretation of large-scale animal studies. Additionally, Ryan has interest in alternative animal testing models for the prioritization and prediction of potential neurotoxic agents.

Ryan received a B.S. in Biology from the University of Pittsburgh in 2004 and in 2012 Ryan obtained her Ph.D. in Toxicology from the University of Colorado investigating the role of mitochondrial oxidative stress and dysfunction in progressive neurological disorders such as Parkinson's disease and Temporal Lobe Epilepsy. Upon completion of her graduate work, she obtained a post-doctoral IRTA fellowship at the NTP.

Selected Publications

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