Study Links Common Dry-Cleaning Chemical to Significantly Elevated Liver Fibrosis Risk
A chemical widely used in dry cleaning and found in certain consumer products may pose a previously underappreciated risk to liver health. A study published in Science Daily reports that individuals with detectable levels of tetrachloroethylene (PCE) in their bloodstream were three times more likely to develop significant liver fibrosis—a condition involving dangerous scar-tissue buildup that can progress to liver failure or cancer.
Researchers observed that the risk climbed steeply in tandem with increasing PCE concentrations in the blood. This association persisted even after adjusting for confounding variables such as age, sex, race, education level, alcohol consumption, and metabolic conditions, suggesting an independent effect of PCE exposure on liver health.
PCE has historically been used as a solvent in dry cleaning, textile processing, and various industrial applications. It has also appeared in some household products, though regulatory restrictions have reduced general consumer exposure over time. The findings highlight the importance of monitoring environmental chemical exposure as a potential contributor to chronic liver disease, which affects millions of people worldwide and often develops silently over decades.
The researchers note that while the link between PCE and liver fibrosis is statistically robust, further studies are needed to establish causality and explore mechanisms of toxicity. Public health experts may use these findings to reassess exposure limits and screening recommendations for populations with occupational or residential proximity to PCE sources.