Effects of endurance training on skeletal muscle mitochondrial function in Huntington disease patients.

Mueller, Sandro Manuel; Gehrig, Saskia Maria; Petersen, Jens A; Frese, Sebastian; Mihaylova, Violeta; Ligon-Auer, Maria; Khmara, Natalia; Nuoffer, Jean-Marc; Schaller, André; Lundby, Carsten; Toigo, Marco; Jung, Hans H (2017). Effects of endurance training on skeletal muscle mitochondrial function in Huntington disease patients. Orphanet journal of rare diseases, 12(1), p. 184. BioMed Central 10.1186/s13023-017-0740-z

[img]
Preview
Text
s13023-017-0740-z.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (581kB) | Preview

BACKGROUND Mitochondrial dysfunction may represent a pathogenic factor in Huntington disease (HD). Physical exercise leads to enhanced mitochondrial function in healthy participants. However, data on effects of physical exercise on HD skeletal muscle remains scarce. We aimed at investigating adaptations of the skeletal muscle mitochondria to endurance training in HD patients. METHODS Thirteen HD patients and 11 healthy controls completed 26 weeks of endurance training. Before and after the training phase muscle biopsies were obtained from M. vastus lateralis. Mitochondrial respiratory chain complex activities, mitochondrial respiratory capacity, capillarization, and muscle fiber type distribution were determined from muscle samples. RESULTS Citrate synthase activity increased during the training intervention in the whole cohort (P = 0.006). There was no group x time interaction for citrate synthase activity during the training intervention (P = 0.522). Complex III (P = 0.008), Complex V (P = 0.043), and succinate cytochrome c reductase (P = 0.008) activities increased in HD patients and controls by endurance training. An increase in mass-specific mitochondrial respiratory capacity was present in HD patients during the endurance training intervention. Overall capillary-to-fiber ratio increased in HD patients by 8.4% and in healthy controls by 6.4% during the endurance training intervention. CONCLUSIONS Skeletal muscle mitochondria of HD patients are equally responsive to an endurance-training stimulus as in healthy controls. Endurance training is a safe and feasible option to enhance indices of energy metabolism in skeletal muscle of HD patients and may represent a potential therapeutic approach to delay the onset and/or progression of muscular dysfunction. TRIAL REGISTRATION ClinicalTrials.gov NCT01879267 . Registered May 24, 2012.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Unit Childrens Hospital > Forschungsgruppe Humangenetik
04 Faculty of Medicine > Department of Gynaecology, Paediatrics and Endocrinology (DFKE) > Clinic of Paediatric Medicine
04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Institute of Clinical Chemistry

UniBE Contributor:

Nuoffer, Jean-Marc and Schaller, André

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1750-1172

Publisher:

BioMed Central

Language:

English

Submitter:

André Schaller

Date Deposited:

29 Jan 2018 10:48

Last Modified:

26 Oct 2019 05:29

Publisher DOI:

10.1186/s13023-017-0740-z

PubMed ID:

29258585

Uncontrolled Keywords:

Citrate synthase Mitochondrial respiration Mitochondrial respiratory chain Neuromuscular disease

BORIS DOI:

10.7892/boris.109371

URI:

https://boris.unibe.ch/id/eprint/109371

Actions (login required)

Edit item Edit item
Provide Feedback