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Updated: May 30, 2026
08:09
Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
Published on: January 7, 2014
Trichloroethylene and Parkinson disease
1Movement Disorders Program, Department of Neurology, University of Kentucky College of Medicine, Kentucky Clinic L-445, 740 South Limestone Street, Lexington, KY 40536-0284, USA.
Neurologic Clinics
|August 2, 2011
Summary
Chronic trichloroethylene (TCE) exposure may trigger Parkinson disease in susceptible individuals. TCE metabolite TaClo might cause mitochondrial dysfunction, leading to nigrostriatal degeneration and parkinsonism.
Area of Science:
- Neuroscience
- Toxicology
- Environmental Health
Background:
- Idiopathic Parkinson disease (PD) pathogenesis involves genetic and environmental factors.
- Emerging evidence links chronic trichloroethylene (TCE) exposure to parkinsonism.
- Animal models demonstrate TCE-induced nigrostriatal degeneration.
Purpose of the Study:
- To investigate the association between TCE exposure and Parkinson disease.
- To explore the underlying mechanisms of TCE-induced neurodegeneration.
Main Methods:
- Review of existing literature on TCE exposure and parkinsonism.
- Analysis of animal and cell culture models of TCE toxicity.
- Examination of potential TCE metabolites, such as TaClo.
Main Results:
- TCE exposure is associated with clinical parkinsonism and nigrostriatal degeneration in animal models.
- Mitochondrial dysfunction is indicated as a probable mechanism.
- TaClo, a potential TCE metabolite, may mediate this mitochondrial dysfunction.
Conclusions:
- Environmental factors like TCE can contribute to Parkinson disease development.
- Genetic predisposition may interact with environmental exposures.
- Mitochondrial dysfunction is a key pathway in TCE-induced parkinsonism.
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