Neurobiology of Disease (Jul 2007)

Normal platelet mitochondrial complex I activity in Huntington’s Disease

  • William J. Powers,
  • Richard H. Haas,
  • Thuy Le,
  • Tom O. Videen,
  • Tamara Hershey,
  • Lori McGee-Minnich,
  • Joel S. Perlmutter

Journal volume & issue
Vol. 27, no. 1
pp. 99 – 101

Abstract

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Two small case series of platelet mitochondrial complex I activity assays in Huntington’s Disease (HD) report discrepant results. We measured platelet complex I and complex I/III activity in 21 subjects with early gene-positive HD and 14 age-matched controls. The 21 participants with HD that we studied are greater than the total of 16 in the two previously published of platelet ETS activity in HD. Reductions ?>>10% were excluded with 80% confidence. A systemic defect in complex I activity is not present in early HD when striatal neuronal degeneration is already present.

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