Complex I defect in muscle from patients with Huntington's disease.

Abstract:

:We found a variable defect of complex I of the mitochondrial respiratory chain, ranging in severity from 25% to 63% of control values, in muscle of patients with Huntington's disease (HD). The most severe defect was observed in the patient with the greatest expansion of CAG triplets. Muscle morphology showed myopathic changes such as moth-eaten fibers, angulated fibers, increased subsarcolemmal oxidative activities, or an increased number of enlarged mitochondria with abnormal cristae. Multiple mitochondrial DNA deletions were found by polymerase chain reaction (PCR) analysis in muscle of the patient with the most severe defect of complex I. Our data further support the involvement of energetic defects and oxidative damage in muscle of patients with HD.

journal_name

Ann Neurol

journal_title

Annals of neurology

authors

Arenas J,Campos Y,Ribacoba R,Martín MA,Rubio JC,Ablanedo P,Cabello A

doi

10.1002/ana.410430321

subject

Has Abstract

pub_date

1998-03-01 00:00:00

pages

397-400

issue

3

eissn

0364-5134

issn

1531-8249

journal_volume

43

pub_type

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