Endurance training modulates the muscular transcriptome response to acute exercise

Schmutz, Silvia; Däpp, Christoph; Wittwer, Matthias; Vogt, Michael; Hoppeler, Hans; Flück, Martin (2006). Endurance training modulates the muscular transcriptome response to acute exercise. Pflügers Archiv : European journal of physiology, 451(5), pp. 678-87. Berlin: Springer-Verlag; http://www.springer.de 10.1007/s00424-005-1497-0

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We hypothesized that in untrained individuals (n=6) a single bout of ergometer endurance exercise provokes a concerted response of muscle transcripts towards a slow-oxidative muscle phenotype over a 24-h period. We further hypothesized this response during recovery to be attenuated after six weeks of endurance training. We monitored the expression profile of 220 selected transcripts in muscle biopsies before as well as 1, 8, and 24 h after a 30-min near-maximal bout of exercise. The generalized gene response of untrained vastus lateralis muscle peaked after 8 h of recovery (P=0.001). It involved multiple transcripts of oxidative metabolism and glycolysis. Angiogenic and cell regulatory transcripts were transiently reduced after 1 h independent of the training state. In the trained state, the induction of most transcripts 8 h after exercise was less pronounced despite a moderately higher relative exercise intensity, partially because of increased steady-state mRNA concentration, and the level of metabolic and extracellular RNAs was reduced during recovery from exercise. Our data suggest that the general response of the transcriptome for regulatory and metabolic processes is different in the trained state. Thus, the response is specifically modified with repeated bouts of endurance exercise during which muscle adjustments are established.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy > Functional Anatomy
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Anatomy

UniBE Contributor:

Däpp, Christoph; Vogt, Michael; Hoppeler, Hans-Heinrich and Flück, Martin

ISSN:

0031-6768

ISBN:

16362354

Publisher:

Springer-Verlag; http://www.springer.de

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:46

Last Modified:

26 Jun 2018 13:51

Publisher DOI:

10.1007/s00424-005-1497-0

PubMed ID:

16362354

Web of Science ID:

000234397200010

BORIS DOI:

10.7892/boris.18933

URI:

https://boris.unibe.ch/id/eprint/18933 (FactScience: 1204)

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