Airborne PCBs and their effects on fat tissue and metabolism
Official title: The Role of Airborne PCBs in Adipogenesis, Adipose Function, and Metabolic Syndrome
Funded at University of Iowa · NIH-11326740 · Data updated 2026-11-12
The team is seeing if breathing PCB-contaminated air—like levels found in some schools—can harm fat tissue and raise the risk of metabolic problems, especially when exposure happens early in life.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Iowa NIH-funded |
| Lab location | 1 site (Iowa City, United States) |
| Project start | May 12, 2006 |
| Project end | January 31, 2030 |
| Funding year | 2026 |
| Award (this year) | $389,303 |
| NIH project number | 5P42ES013661-21 |
| Project ID | NIH-11326740 on NIH RePORTER |
Who could benefit from this research
✓Could help
People most relevant to this work include individuals exposed to PCB-contaminated school or community air—especially those exposed in early childhood—and patients with obesity, metabolic syndrome, diabetes, or unexplained fatty liver disease.
✕Less likely to help
People seeking an immediate clinical treatment or those whose metabolic problems are clearly due to unrelated genetic conditions or strictly dietary causes may not see direct benefit from this research.
What this research studies
This project uses air-sampling data from schools to recreate real-world PCB air mixtures and then exposes young animals with specialized inhalation equipment to mimic childhood exposure. Researchers follow how those exposures change fat cell development, immune cells in adipose tissue, and markers of glucose and liver metabolism, including experiments that combine exposures with a high-fat Western diet. The work looks for sex-specific effects and molecular signs of inflammation and oxidative stress in fat that could drive obesity, diabetes, or fatty liver. Results are compared with existing human epidemiology and rodent data to connect lab findings to community exposures.
Why it matters
Potential benefit: If successful, this work could clarify how airborne PCBs contribute to obesity and metabolic disease and help guide exposure-reduction policies or targeted treatments for affected tissues.
How similar studies have gone: Epidemiologic and rodent studies have previously linked PCBs to metabolic problems, but recreating school-air inhalation exposures and focusing on early-life adipose immune effects is a relatively new approach.
Where this research is happening
-
University of Iowa
Iowa City, United States Active
Researchers
- Principal investigator: Klingelhutz, Aloysius John — University of Iowa
- Study coordinator: Klingelhutz, Aloysius John
Related research
Other NIH-funded projects on the same topics.
-
Integrated biomarker study of metabolic syndrome in pregnant women with HIV on DTG-based ART
Researchers will look for biological signs in pregnant women with HIV on a DTG-based regimen to understand why weight gain and metabolic problems happen and how these affect pregnancy.
-
Biomarker profiling to understand metabolic syndrome in pregnant women with HIV on DTG-based ART
This project looks at why some pregnant women living with HIV on a common DTG-based therapy gain weight or develop metabolic problems, by studying their proteins and metabolites across four sites in the US and Nigeria.
-
Biomarker profiling to understand metabolic syndrome in pregnant women with HIV on DTG-based therapy
This project looks at markers in pregnant women living with HIV who are on a DTG-containing regimen to understand why some develop metabolic problems during pregnancy.
-
Metabolic syndrome and brain support cells: how it may lead to Alzheimer’s disease
A researcher is studying how midlife metabolic problems like diabetes and obesity may disrupt brain cells that support neurons, potentially leading to Alzheimer's disease and related dementia in later life.
-
GLP-1 medicines to improve heart, kidney, and metabolic health for people with HIV and type 2 diabetes
A real-world study will look at how GLP-1 receptor agonists affect heart and kidney health and lifetime costs for people living with HIV and type 2 diabetes.
-
A new metabolic risk score to predict heart disease in Yup’ik Alaska Native adults
A new, questions-free way to measure heart-disease risk in Yup’ik Alaska Native adults by combining everyday health clues with home-life factors.
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.