Whether teenage PCB exposure raises the risk of depression
Adolescent exposure to PCBs as a risk factor for the development of depression
Checks whether teens' exposure to common environmental chemicals called PCBs makes them more likely to develop depression.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Miami School of Medicine NIH-funded |
| Lab location | 1 site (Coral Gables, United States) |
| Project ID | NIH-11248862 on NIH RePORTER |
What this research studies
This project uses adolescent mouse models to mimic teenage exposure to PCBs and track later depression-like behaviors. Researchers will look at how PCB exposure changes gut bacteria and whether those changes, plus effects on the blood-brain barrier, affect brain systems tied to mood. The team will give chronic, low-level PCB exposures relevant to contaminated schools, then measure behavior, microbiome shifts, barrier integrity, and brain inflammation. The idea is to learn mechanisms that could point to prevention or new treatments for depression linked to environmental exposure.
Who could benefit from this research
Good fit: This project does not enroll people (it uses mice), but its findings are most relevant to adolescents with known or suspected PCB exposure or early-onset depression.
Not a fit: People without PCB exposure or whose depression has unrelated causes may not directly benefit from these specific findings.
Why it matters
Potential benefit: If successful, this work could reveal how PCB exposure contributes to adolescent depression and point to ways to prevent or treat exposure-related mood problems.
How similar studies have performed: Previous animal and human studies have linked PCBs and microbiome changes to mood, but applying this specifically to adolescent PCB exposure and depression through the gut–brain and blood–brain barrier pathway is largely novel.
Where this research is happening
Coral Gables, United States
- University of Miami School of Medicine — Coral Gables, United States (Active)
Researchers
- Principal investigator: Toborek, Michal — University of Miami School of Medicine
- Study coordinator: Toborek, Michal
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.