Voluntary physical activity counteracts Chronic Heart Failure progression affecting both cardiac function and skeletal muscle in the transgenic Tgαq*44 mouse model

Autor: Eleonora Bardi, Joanna Majerczak, Jerzy A. Zoladz, Urszula Tyrankiewicz, Tomasz Skorka, Stefan Chlopicki, Magdalena Jablonska, Anna Bar, Krzysztof Jasinski, Alessia Buso, Desy Salvadego, Zenon Nieckarz, Bruno Grassi, Roberto Bottinelli, Maria Antonietta Pellegrino
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Physiological Reports, Vol 7, Iss 13, Pp n/a-n/a (2019)
Druh dokumentu: article
ISSN: 2051-817X
DOI: 10.14814/phy2.14161
Popis: Abstract Physical activity is emerging as an alternative nonpharmaceutical strategy to prevent and treat a variety of cardiovascular diseases due to its cardiac and skeletal muscle beneficial effects. Oxidative stress occurs in skeletal muscle of chronic heart failure (CHF) patients with possible impact on muscle function decline. We determined the effect of voluntary‐free wheel running (VFWR) in preventing protein damage in Tgαq*44 transgenic mice (Tg) characterized by a delayed CHF progression. In the early (6 months) and transition (12 months) phase of CHF, VFWR increased the daily mean distance covered by Tg mice eliminating the difference between Tg and WT present before exercise at 12 months of age (WT Pre‐EX 3.62 ± 1.66 vs. Tg Pre‐EX 1.51 ± 1.09 km, P 0.005). This effect was concomitant with an improvement of in vivo cardiac performance [(Cardiac Index (mL/min/cm2): 6 months, untrained‐Tg 0.167 ± 0.005 vs. trained‐Tg 0.21 ± 0.003, P 0.05). Prolonged voluntary physical activity performed before the onset of CHF end‐stage, appears to be a useful tool to increase cardiac function and to reduce skeletal muscle oxidative damage counteracting physical activity decline.
Databáze: Directory of Open Access Journals
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