Neurotoxicity of PFAS

Principal Investigator(s): Dr. Jason Cannon
Co-Principal Investigator: Dr. Marisol Sepúlveda

Neuromelanin (purple dots) in the brain.

Photo shows neuromelanin (purple dots) on brain.

Researchers

Dr. Jason Cannon

Jason Cannon
Professor of Toxicology
Purdue School of Health Sciences

Josephine Brown

Josephine Brown
PhD student
Purdue School of Health Sciences

Dr. Marisol Sepúlveda holding a fish.

Marisol Sepúlveda
Professor and Associate Head of Research
Purdue Forestry & Natural Resources

Meredith Scherer

Meredith Scherer
MS
Purdue Forestry & Natural Resources

Tyler Hoskins holding a fish.

Tyler Hoskins
Research Assistant Faculty
Purdue Forestry & Natural Resources

Research Objectives

Per- and polyfluoroalkyl substances (PFAS) are a class of chemicals that were widely used in manufacturing and are now present in the environment throughout the world. It is known that various PFAS are quantifiable in human in blood, but potential adverse health outcomes remain unclear. Sentinel and non-traditional model species are useful to study potential toxicity of PFAS in order to understand the relationship between environmental and human health.

  • R. pipens brains contain neuromelanin, a pigment present in humans and not rodents and thought to mediate response to toxicants
  • Preliminary data suggests altered neurotransmitter levels in brains of R. pipiens exposed to PFOS
  • Studying effects of PFOS on dopamine and other neurotransmitters
  • Animal model: Rana pipiens
National Institutes of Health