Cited by 220Parkinson's Disease Mechanisms and TreatmentsMitochondrial Function and PathologyCoenzyme Q10 studies and effects

Electron transfer complexes I and IV of platelets are abnormal in Parkinson's disease but normal in Parkinson-plus syndromes

Benecke, R., Strumper, P., Weiss, H.·1993·Brain

Abstract

Using a technique which requires only 100 ml blood we investigated the electron transfer complexes (ETC) I, III and IV in platelet mitochondria of 44 control subjects, 27 patients with idiopathic Parkinson's disease and eight patients with Parkinson-plus syndromes due to multiple system atrophy. In both control subjects and patients, ETC measurements were repeated at intervals of several months. The activities varied considerably among normal subjects, but intra-individual variation of ETC activities were low at repetitive measurements. In normal subjects there was no correlation between enzyme activities and age or training state. There was no difference in enzyme activities between smokers and non-smokers in the control group. Complex I activity was lower in Parkinson's disease patients than in controls (14 versus 29 nmol/min/mg platelet protein; P < 0.001). Furthermore, the group difference in complex IV activity also reached statistical significance (83 versus 58 nmol/min/mg platelet protein; P < 0.001). Additionally, in some Parkinson's disease patients, activities of complex III were low and lay outside the control range, but the group difference did not reach significance. There was no correlation between complex I activity and disease duration or severity as well as the daily L-dopa dose in Parkinson's disease patients. Repeated measurements in five Parkinson's disease patients in the earliest stages of their illness demonstrated that the decrease in complex I and IV activities can develop rapidly within 1 year. In Parkinson-plus patients suffering from multiple system atrophy the ETC activities were normal.

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Crossref · 10.1093/brain/116.6.1451

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  • Impairment of mitochondrial complex-I activity has been observed in the substantia nigra, platelets, and skeletal muscle of PD patients, in some but not all studies.

    “An impairment of mitochondrial complex-I activity has been observed in the substantia nigra (SN), platelets, and skeletal muscle of PD patients 1, 9-13, in some but not in all studies14, 15.”

    From Mitochondrial Approaches for Neuroprotection (2008) · cites this paper as [13]

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Authors
Benecke, R., Strumper, P., & Weiss, H.
Affiliations
Heinrich Heine University Düsseldorf (DE)
Corresponding author
Benecke, R.
Venue
Brain
Published
1993-12-01
Volume
116
Issue
6
Pages
1451-1463
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2005045122
Cited by
220
References
0
Citations by year
2026: 2 · 2025: 5 · 2024: 5 · 2023: 6 · 2022: 6 · 2021: 1 · 2020: 7 · 2019: 5 · 2018: 9 · 2017: 6 · 2016: 4 · 2015: 6 · 2014: 4 · 2013: 5 · 2012: 6
FWCI
4.83
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Coenzyme Q10 studies and effects
Keywords
Parkinson's disease, atypical parkinsonism, multiple system atrophy, electron transfer complex, complex I, cytochrome bc1 complex, cytochrome c oxidase, platelet mitochondria, mitochondrial enzyme activity, disease duration
MeSH terms
Aged, Aged, 80 and over, Blood Platelets, Electron Transport Complex IV, Electron Transport, Humans, Middle Aged, Mitochondria, Parkinson Disease, Parkinson Disease, Secondary, Syndrome, Electron Transport Complex III, NAD(P)H Dehydrogenase (Quinone)

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