Cited by 269Exercise and Physiological ResponsesGenetics, Aging, and Longevity in Model OrganismsMuscle Physiology and Disorders

Exercise training decreases DNA damage and increases DNA repair and resistance against oxidative stress of proteins in aged rat skeletal muscle

Radák, Zsolt, Naito, Hisashi, Kaneko, Takao, Tahara, Shunichi, Nakamoto, Hideko, Takahashi, Ryoya, Cardozo-Pelaez, Fernando, Goto, Sataro·2002·Pfl�gers Archiv European Journal of Physiology

Abstract

Regular physical exercise retards a number of age-associated disorders, in spite of the paradox that free radical generation is significantly enhanced with exercise. Eight weeks of treadmill running resulted in nearly a 40% increase in maximal oxygen uptake in both middle-aged (20-month-old) and aged (30-month-old) rats. The age-associated increase in 8-hydroxy-2'-deoxyguanosine (8-OHdG) content was significantly attenuated in gastrocnemius muscle by exercise. The 8-OHdG repair, as measured by the excision of 32P-labeled damaged oligonucleotide, increased in muscle of exercising animals. The reactive carbonyl derivatives (RCD) of proteins did not increase with aging. However, when the muscle homogenate was exposed to a mixture of 1 mM iron sulfate and 50 mM ascorbic acid, the muscle of old control animals accumulated more RCD than that of the trained or adult groups. The chymotrypsin-like activity of proteasome complex increased in muscle of old trained rats. We suggest that regular exercise-induced adaptation attenuates the age-associated increase in 8-OHdG levels, and increases the activity of DNA repair and resistance against oxidative stress in proteins.

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Crossref · 10.1007/s00424-002-0918-6

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  • Exercise is an efficient strategy for delaying aging through mechanisms such as DNA damage and oxidative stress.

    “Exercise is an efficient strategy for delaying aging330 through various mechanisms, such as DNA damage331 and oxidative stress.332”
  • Eight weeks of treadmill running attenuated the age-associated increase in DNA damage (8-OHdG content) within skeletal muscle of 30-month-old rats.

    “Impressively, 8 wk of treadmill running attenuated the age-associated increase in DNA damage (8-OHdG content) within skeletal muscle of 30-month-old rats (14).”

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Authors
Radák, Z., Naito, H., Kaneko, T., Tahara, S., Nakamoto, H., Takahashi, R., Cardozo-Pelaez, F., & Goto, S.
Affiliations
  • Tokyo Metropolitan Institute of Gerontology (JP)
  • Toho University (JP)
Venue
Pfl�gers Archiv European Journal of Physiology
Published
2002-11-01
Volume
445
Issue
2
Pages
273-278
ISSN
0031-6768 (ISSN-L)
OpenAlex
W2162808674
Cited by
269
References
29
Citations by year
2026: 6 · 2025: 7 · 2024: 9 · 2023: 4 · 2022: 8 · 2021: 12 · 2020: 7 · 2019: 9 · 2018: 22 · 2017: 12 · 2016: 12 · 2015: 19 · 2014: 8 · 2013: 12 · 2012: 9
FWCI
11.64
Type
journal article
Language
en
Open access
closed
Locations
  • Pflügers Archiv - European Journal of Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
exercise training, aging, skeletal muscle, DNA damage, DNA repair, oxidative stress, 8-hydroxy-2'-deoxyguanosine, protein carbonylation, proteasome activity, treadmill running, gastrocnemius, VO2max
MeSH terms
8-Hydroxy-2'-Deoxyguanosine, Aging, Animals, Body Weight, Deoxyguanosine, DNA Damage, DNA Repair, Male, Muscle Proteins, Oxygen Consumption, Physical Conditioning, Animal, Rats, Inbred F344, Oxidative Stress, Muscle, Skeletal, Rats

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