Mitochondrial dysfunction and oxidative damage in Alzheimer's and Parkinson's diseases and coenzyme Q10 as a potential treatment
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Updated: Aug 12, 2026

Assessing Mitochondrial Function in Sciatic Nerve by High-Resolution Respirometry
Published on: May 5, 2022
1Department of Neurology and Neuroscience, New York Presbyterian Hospital-Weill Medical College of Cornell University, 525 East 68th Street, New York, New York 10021, USA. fbeal@med.cornell.edu
Abstract:
There is substantial evidence that mitochondrial dysfunction and oxidative damage may play a key role in the pathogenesis of neurodegenerative disease. Evidence supporting this in both Alzheimer's and Parkinson's diseases is continuing to accumulate. This review discusses the increasing evidence for a role of both mitochondrial dysfunction and oxidative damage in contributing to beta-amyloid deposition in Alzheimer's disease. I also discuss the increasing evidence that Parkinson's disease is associated with abnormalities in the electron transport gene as well as oxidative damage. Lastly, I reviewed the potential efficacy of coenzyme Q as well as a number of other antioxidants in the treatment of both Parkinson's and Alzheimer's diseases.
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