Cited by 72Muscle Physiology and DisordersNutrition and Health in AgingMuscle metabolism and nutrition

Exercise training increases anabolic and attenuates catabolic and apoptotic processes in aged skeletal muscle of male rats

Ziaaldini, Mohammad Mosaferi, Koltai, Erika, Csende, Zsolt, Goto, Sataro, Boldogh, Istvan, Taylor, Albert W., Radak, Zsolt·2015·Experimental Gerontology

Abstract

Aging results in significant loss of mass and function of the skeletal muscle, which negatively impacts the quality of life. In this study we investigated whether aerobic exercise training has the potential to alter anabolic and catabolic pathways in the skeletal muscle. Five and twenty eight month old rats were used in the study. Aging resulted in decreased levels of follistatin/mTOR/Akt/Erk activation and increased myostatin/Murf1/2, proteasome subunits, and protein ubiquitination levels. In addition, TNF-α, reactive oxygen species (ROS), p53, and Bax levels were increased while Bcl-2 levels were decreased in the skeletal muscle of aged rats. Six weeks of exercise training at 60% of VO2max reversed the age-associated activation of catabolic and apoptotic pathways and increased anabolic signaling. The results suggest that the age-associated loss of muscle mass and cachexia could be due to the orchestrated down-regulation of anabolic and up-regulation of catabolic and pro-apoptotic processes. These metabolic changes can be attenuated by exercise training.

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Crossref · 10.1016/j.exger.2015.04.008

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  1. Kalyanaraman, B.; Darley-Usmar, V.; Davies, K.J.A.; Dennery, P.; Forman, H.J.; Grisham, M.; Mann, G.; Moor; Roberts, J.L.J.I.; Ischiropoulos, H. The use of fluorescence probes to measure reactive oxygen and nitrogen species in cell: challenges, potentials and caveats. in press; 2011

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Authors
Ziaaldini, M. M., Koltai, E., Csende, Z., Goto, S., Boldogh, I., Taylor, A. W., & Radak, Z.
Affiliations
  • Semmelweis University (HU)
  • Juntendo University (JP)
  • The University of Texas Medical Branch at Galveston (US)
  • Western University (CA)
Corresponding author
Radak, Zsolt
Venue
Experimental Gerontology
Publisher
Elsevier BV
Published
2015-07
Volume
67
Pages
9-14
ISSN
0531-5565 (ISSN-L)
OpenAlex
W2068554185
Cited by
72
References
49
Citations by year
2025: 5 · 2024: 4 · 2023: 3 · 2022: 7 · 2021: 6 · 2020: 7 · 2019: 6 · 2018: 13 · 2017: 11 · 2016: 8 · 2015: 2
FWCI
4.92
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Gerontology (publishedVersion)
  • PubMed (publishedVersion)
  • Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) (acceptedVersion)
Funders
OTKA (K 112810)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
exercise training, skeletal muscle aging, sarcopenia, cachexia, anabolic signaling, catabolic pathways, apoptosis, follistatin, myostatin, proteasome, ubiquitination, TNF-α, reactive oxygen species, p53, Bax, Bcl-2, muscle mass loss
MeSH terms
Aging, Animals, Male, Physical Conditioning, Animal, Signal Transduction, Rats, Wistar, Apoptosis, Reactive Oxygen Species, Muscle, Skeletal, Follistatin, Myostatin

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