PIPages
Labs

Howard Gritton

University of Illinois Urbana-Champaign, IL·Neuroscience

Phthalates are chemicals added to plastics to make them flexible and stable. They are found in vinyl flooring, children's toys, personal care products and medical devices, and pregnant women and young children are routinely exposed.

Fields

Neuroscience

Pharmacology

Psychology

Topics

phthalates

endocrine disrupting compounds

plasticizers

Grants
1 known grant, through Sep 2029

What they work on

  1. Test whether developmental phthalate exposure reduces anatomical and functional connectivity among frontal, sensory and limbic brain regions in mice, using whole-brain magnetic resonance imaging (MRI).
  2. Test whether phthalate-exposed mice investigate other mice less and show weaker dopamine signaling in social reward pathways, using projection-specific fiber photometry during behavior.
  3. Determine how phthalate exposure changes the hormone, dopamine and cell-signaling gene profiles of limbic regions in juvenile and adult mice, using multi-region high-density transcriptomics.

More about the research

Phthalates belong to a group called endocrine disrupting compounds, chemicals that interfere with the body's hormones. Recent studies link exposure in the womb to more autistic traits, such as social anxiety and communication difficulties. How these chemicals change the developing brain is still largely unknown.

Why it matters

Phthalates are nearly unavoidable in everyday products, and exposure during development has been linked to autistic traits such as reduced communication and social anxiety. Showing how these chemicals alter the brain's social reward circuits could clarify the risks to fetuses and children. It may also guide preventive strategies to protect the developing nervous system.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Impacts of phthalate exposure on the development of social behavior circuits

NIH · Sep 2025 – Sep 2029

Closest labs

Johanna Jarcho

Temple University, PA·Psychology

Compare brain responses to social reward (being liked by peers) and non-social reward (winning money) in autistic and neurotypical adolescents aged 10–15, using a purpose-built fMRI feedback task.

Rebecca Schwarzlose

Washington University in St Louis, MO·Neuroscience·Early-career

Test whether neural suppression, the reduced brain response to expected sensations, is weaker in children with sensory over-responsivity, using existing brain imaging data.

Caroline Smith

Boston College, MA·Neuroscience·Early-career

Test whether cross-fostering mouse pups exposed prenatally to diesel exhaust particles and maternal stress prevents shifts in their gut microbiome, measured by metagenomic sequencing.

The school

University of Illinois Urbana-Champaign: 41 labs on PI Pages, $907M a year on research, 870 research doctorates a year.

More about University of Illinois Urbana-Champaign

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