Abnormal liver enzyme-mediated metabolism in Parkinson's disease: a second look
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Updated: Sep 25, 2026

The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease
Published on: October 3, 2012
1Clinical Center for Parkinson's Disease and Movement Disorders, San Jose, CA 95128.
Abstract:
If toxicant exposure contributes to the cause of Parkinson's disease, poor function of detoxifying enzymes could increase vulnerability for Parkinson's disease. Although no hepatic enzyme system has been shown universally to be dysfunctional in Parkinson's disease patients, several have been suggested to be dysfunctional in subgroups, such as those with young age at disease onset. Specific enzymes implicated include several P450 enzymes, most notably P450 IID6, and cysteine dioxygenase. If hepatic enzyme abnormalities contribute to the development of Parkinson's disease, molecular genetic techniques may allow the development of screening tests to identify at-risk subjects in order to intervene with protective therapies.
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