Living near dry cleaners may raise the risk of developing Parkinson’s disease, according to a new study led by researchers at Barrow Neurological Institute in Phoenix. The study, which analyzed data from across the United States, found that people who lived in areas with a higher density of dry cleaning facilities were more likely to be diagnosed with Parkinson’s disease. The researchers suggest that trichloroethylene (TCE), a solvent commonly used in dry cleaning, could be a key factor behind this link.

Key takeaways

  • Living near dry cleaners was associated with an increased likelihood of Parkinson’s disease in a new nationwide study.
  • Trichloroethylene (TCE), a chemical solvent used in dry cleaning, is suspected as a possible cause.
  • The study adds to growing evidence that environmental exposures may contribute to Parkinson’s disease risk.
  • Researchers call for more investigation into TCE exposure and neurological health.

What the study found

The team at Barrow Neurological Institute examined medical and residential data from millions of Medicare beneficiaries across the United States. They compared where people lived with their rates of Parkinson’s disease diagnoses. The results showed that individuals residing in neighborhoods with a higher concentration of dry cleaning businesses had a greater chance of developing the condition. This pattern held even after accounting for other factors that could influence disease risk, such as income, age, and access to healthcare.

The researchers focused on dry cleaners because of their use of TCE. This chemical has been linked to neurological damage in previous studies, and it can leak into surrounding soil and groundwater. People living near dry cleaners may breathe in TCE fumes or consume contaminated water, the study suggests. The link was strongest in areas where dry cleaners are more common, such as urban and suburban regions.

How TCE might affect the brain

Trichloroethylene is a colorless liquid that evaporates quickly into the air. It has been used for decades as a degreasing agent and in dry cleaning. Health agencies, including the Environmental Protection Agency (EPA), have classified TCE as a likely human carcinogen. However, its effects on the nervous system are less well understood. Some earlier research in animals and workers exposed to high levels of TCE has suggested that it can damage parts of the brain involved in movement control, similar to what happens in Parkinson’s disease.

The new study does not prove that TCE directly causes Parkinson’s disease, but it strengthens the case for a connection. The authors note that more work is needed to confirm the findings and to understand the biological mechanisms. They recommend that people living near dry cleaners take precautions, such as ensuring good ventilation and testing well water for contaminants.

What experts say about the findings

Neurologists and environmental health experts have reacted cautiously to the study. Some point out that Parkinson’s disease is complex and likely involves a mix of genetic and environmental factors. While the link with dry cleaners is intriguing, it is too early to draw firm conclusions, they say. The study’s lead researcher at Barrow Neurological Institute emphasized that the findings are preliminary and should be followed up with more detailed investigations into individual exposure levels.

The study was published in a peer-reviewed journal and adds to a growing body of research linking environmental chemicals to neurological disorders. Previous studies have connected TCE exposure to an increased risk of Parkinson’s disease in veterans and industrial workers. However, the new research is among the first to examine the general population’s risk from living near commercial facilities that use the chemical.

Frequently Asked Questions

Should I be worried if I live near a dry cleaner?

The study suggests a link, but the risk appears to be small for most people. The researchers recommend common-sense steps like keeping windows closed when dry cleaners are operating nearby and testing well water if you rely on a private well. If you have concerns about Parkinson’s disease, talk to your doctor about your personal risk factors.

Can I reduce my exposure to TCE from dry cleaners?

You can lower potential exposure by avoiding living directly above or next to a dry cleaning facility. If you live near one, ensure that your home has good ventilation and consider installing a water filter that removes volatile organic compounds if you use well water. For clothes, choose dry cleaners that use newer, safer methods, such as wet cleaning or liquid carbon dioxide cleaning, which do not involve TCE.

What is being done about TCE in dry cleaning?

Many dry cleaners have been moving away from TCE in recent years due to health and environmental regulations. The EPA has restricted some uses of TCE and encourages safer alternatives. However, older facilities may still use TCE. Local laws in some states also require dry cleaners to reduce emissions and monitor groundwater. Consumers can ask their dry cleaner what solvent they use and choose services that are advertised as “eco-friendly.”

This is an original report by Vital Signs Today, informed by reporting from Medical Xpress. Read the original source.

This article is for information only and is not medical advice. See our Medical Disclaimer.