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Study finds common dry cleaning chemical trichloroethylene to be linked to Parkinson's - Video
Overview
A common and widely used chemical may be fueling the rise of the world's fastest growing brain condition-Parkinson's disease. For the past 100 years, trichloroethylene (TCE) has been used to decaffeinate coffee, degrease metal, and dry clean clothes. TCE causes cancer, is linked to miscarriages and congenital heart disease, and is associated with a 500 percent increased risk of Parkinson’s disease.
In a hypothesis paper in the Journal of Parkinson’s Disease, an international team of researchers postulate that TCE may be an invisible cause of Parkinson’s. In the paper they detail the widespread use of the chemical, the evidence linking the toxicant to Parkinson’s, and profile seven individuals, ranging from a former NBA basketball player to a Navy captain to a late U.S. Senator, who developed Parkinson’s disease either after likely working with the chemical or being exposed to it in the environment.
In animal studies, TCE causes selective loss of dopamine-producing nerve cells, a hallmark of Parkinson’s disease in humans. Individuals who worked directly with TCE have an elevated risk of developing Parkinson’s. However, the authors warn that “millions more encounter the chemical unknowingly through outdoor air, contaminated groundwater, and indoor air pollution.”
The piece profiles seven individuals where TCE may have contributed to their Parkinson’s disease. While the evidence linking TCE exposure to Parkinson’s disease in these individuals is circumstantial, their stories highlight the challenges of building the case against chemical. In these cases, decades have often passed between exposure to TCE and the onset of Parkinson’s symptoms.
Reference:
Trichloroethylene: An Invisible Cause of Parkinson’s Disease?,Journal of Parkinson s Disease,doi 10.3233/JPD-225047
Speakers
Isra Zaman
B.Sc Life Sciences, M.Sc Biotechnology, B.Ed