Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Your Environment. Your Health.

Kristen R. Ryan, Ph.D.

Systems Toxicology Group

Kristen R. Ryan, Ph.D.
Kristen Ryan, Ph.D.
Toxicologist
Tel 984-287-3179
kristen.ryan@nih.gov
530 Davis Dr
Keystone Building
Durham, NC 27713

Kristen Ryan, Ph.D., DABT, is a toxicologist in the Toxicology Branch of the Division of National Toxicology Program (NTP) 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

Back
to Top