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Effect of Exercise on Tissue Protein Synthesis in Rats
Abstract
The effect of exercise on the protein metabolism in skeletal muscles (gastrocnemius and soleus), liver and small intestine was investigated in rats. Treadmill treatment for 7 d resulted in atrophy of the liver and small intestine, which was associated with a reduction in protein content. The rates of protein synthesis in the liver and small intestine were significantly suppressed in rats subjected to exercise. The change in protein synthesis in the visceral organs was mediated by the change in RNA activity (protein synthesis per unit RNA) but not by the change in RNA concentration. The tissue weight and the rate of protein synthesis in the gastrocnemius and soleus muscles were not affected by exercise. The results suggest that these changes in protein synthesis in the liver and small intestine may explain, at least partly, the atrophy of these organs which was observed after 7 d of exercise.
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Rats that underwent 7 days of treadmill exercise had non-significantly lower levels of total RNA/mg protein in the mixed gastrocnemius muscle (−5.6%, p=0.060) and soleus muscle (−4.7%, p=0.111) compared to untrained rats.
“Hayase and Yokogoshi (1992) reported that rats that underwent 7days of treadmill exercise had non-significantly lower levels of total RNA/mg protein in the mixed gastrocnemius muscle (−5.6%, p=0.060) and soleus muscle (−4.7%, p=0.111) compared to untrained rats.”
From Skeletal Muscle Ribosome and Mitochondrial Biogenesis in Response to Different Exercise Training Modalities (2021) · cites this paper as Hayase and Yokogoshi (1992)
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Research works printed but not linked: 2
- H. N. Munro and A. Fleck, in “Mammalian Protein Metabolism,” Vol. III, ed. by H. N. Munro, Academic Press, New York, 1969, pp. 423–525. · DOI
- G. W. Snedecor and W. G. Cochran, in “Statistical Methods,” 6th Ed., The Iowa State Univercity Press, Ames, IA, 1967, pp. 135–171.
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Mesquita, P. H. C., Vann, C. G., Phillips, S. M., McKendry, J., Young, K. C., Kavazis, A. N., & Roberts, M. D. (2021) · Frontiers in Physiology · doi:10.3389/fphys.2021.725866 · Cited by 62
Metadata
- Authors
- Hayase, K., & Yokogoshi, H.
- Affiliations
- Aichi University of Education (JP)
- Shizuoka University (JP)
- Venue
- Bioscience, Biotechnology, and Biochemistry
- Publisher
- Informa UK Limited
- Published
- 1992-01
- Volume
- 56
- Issue
- 10
- Pages
- 1637-1639
- ISSN
- 0916-8451 (ISSN-L)
- 1347-6947
- OpenAlex
- W2013933761
- Cited by
- 6
- References
- 0
- Citations by year
- 2021: 1 · 2017: 1 · 2013: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioscience Biotechnology and Biochemistry (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
- Health Sciences › Medicine › Physiology (medical) › Spaceflight effects on biology
- Keywords
- physical activity, protein synthesis, skeletal muscle, liver atrophy, RNA activity, gastrocnemius, soleus muscle, protein metabolism, treadmill training
- MeSH terms
- Animals, Body Weight, Circadian Rhythm, Intestine, Small, Liver, Male, Muscle Proteins, Muscles, Organ Size, Physical Conditioning, Animal, Protein Biosynthesis, Rats, Wistar, Rats
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