Cited by 223Coenzyme Q10 studies and effectsParkinson's Disease Mechanisms and TreatmentsNeurological diseases and metabolism

Pilot trial of high dosages of coenzyme Q10 in patients with Parkinson's disease

Shults, Clifford W., Flint Beal, M., Song, David, Fontaine, Deborah·2004·Experimental Neurology

Abstract

The safety and tolerability of high dosages of coenzyme Q10 were studied in 17 patients with Parkinson's disease (PD) in an open label study. The subjects received an escalating dosage of coenzyme Q10--1200, 1800, 2400, and 3000 mg/day with a stable dosage of vitamin E (alpha-tocopherol) 1200 IU/day. The plasma level of coenzyme Q10 was measured at each dosage. Thirteen of the subjects achieved the maximal dosage, and adverse events were typically considered to be unrelated to coenzyme Q10. The plasma level reached a plateau at the 2400 mg/day dosage and did not increase further at the 3000 mg/day dosage. Our data suggest that in future studies of coenzyme Q10 in PD, a dosage of 2400 mg/day (with vitamin E/alpha-tocopherol 1200 IU/day) is an appropriate highest dosage to be studied.

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Crossref · 10.1016/j.expneurol.2004.05.003

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  • Plasma CoQ10 levels reached a plateau at the 2400 mg/day dosage and did not increase further at the 3000 mg/day dosage in PD, HD or ALS patients.

    “However, plasma CoQ10 levels reached a plateau at the 2400 mg/day dosage and did not increase further at the 3000 mg/day dosage in PD, HD or ALS patients161, 162.”

    From Mitochondrial Approaches for Neuroprotection (2008) · cites this paper as [161]

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Authors
Shults, C. W., Flint Beal, M., Song, D., & Fontaine, D.
Affiliations
University of California San Diego (US)
Corresponding author
Shults, Clifford W.
Venue
Experimental Neurology
Publisher
Elsevier BV
Published
2004-08
Volume
188
Issue
2
Pages
491-494
ISSN
0014-4886 (ISSN-L)
OpenAlex
W1990908870
Cited by
223
References
16
Citations by year
2026: 3 · 2025: 7 · 2024: 1 · 2023: 8 · 2022: 8 · 2021: 10 · 2020: 8 · 2019: 6 · 2018: 6 · 2017: 7 · 2016: 9 · 2015: 7 · 2014: 13 · 2013: 13 · 2012: 13
FWCI
5.33
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
Keywords
coenzyme Q10, Parkinson's disease, high-dose supplementation, vitamin E, alpha-tocopherol, safety and tolerability, dose escalation, adverse events
MeSH terms
Calcium, Coenzymes, Cognition, Dose-Response Relationship, Drug, Drug Therapy, Combination, Dyspepsia, Female, Humans, Male, Middle Aged, Motor Activity, Parkinson Disease, Pilot Projects, Safety, Time Factors, Ubiquinone, Vitamin E

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