Journal
INTERNATIONAL JOURNAL OF NEUROSCIENCE
Volume 115, Issue 4, Pages 479-493Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00207450590523017
Keywords
complex I; complex II/III; complex IV; familial Parkinson's disease; mitochondria; Parkinson's disease
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A possible role of initochondrial respiratory chain dysfunction in the pathogenesis of sporadic Parkinson's disease (PD) has been described. There are only a few reports concerning mitochondriall involvement in familial Parkinson's disease. The present study investigated mitochondrial complex I-IV activity in patients with sporadic and familial PD, compared to controls. Platelets were isolated from venous blood and platelet initochondria were obtained through sonication and differential centrifugation. Complex I, II/III, and IV activities were measured in 17 patients with family history of Parkinson's disease (PDF), 15 patients with sporadic Parkinson disease (PDS), and 17 age-matched, healthy controls. The mitochondrial enzyme activities did not differ significantly between patient groups and controls. In addition, there was no correlation between mitochondrial complex activities and age, severity of disease, or age at onset of disease in the patient groups. In this study, the data indicate no significant differences in mitochondrial complex I-IV activities in PDF and PDS.
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