Changes in erythrocyte membrane phospholipid composition induced by physical training and physical exercise
| Autor: | Tamotsu Inoue, Takayoshi Yoshida, Kazuhide Sumikawa, Toshikazu Okochi, Kozaburo Adachi, Zhouseng Mu |
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| Rok vydání: | 1993 |
| Předmět: |
Adult
Chromatography Gas Anaerobic Threshold Physiology education Phospholipid Phosphatidylserines Lipid peroxidation chemistry.chemical_compound Oxygen Consumption Physiology (medical) Phosphatidylcholine Humans Orthopedics and Sports Medicine Exercise Phospholipids chemistry.chemical_classification Physical Education and Training Erythrocyte Membrane Fatty Acids Public Health Environmental and Occupational Health Fatty acid General Medicine Phosphatidylserine Cholesterol chemistry Biochemistry Docosahexaenoic acid Exercise Test Chromatography Thin Layer Anaerobic exercise Polyunsaturated fatty acid |
| Zdroj: | European Journal of Applied Physiology and Occupational Physiology. 67:132-137 |
| ISSN: | 1439-6327 0301-5548 |
| DOI: | 10.1007/bf00376656 |
| Popis: | The effects were investigated of physical training and exercise on lipids of the erythrocyte membrane of healthy students. Membrane cholesterol and phospholipids were analysed simultaneously by thin-layer chromatography with a flame ionization detector and the fatty acid composition was determined by gas chromatography. Physically trained students had similar physical characteristics to control students but a significantly higher aerobic capacity, estimated as the maximal oxygen uptake and anaerobic threshold. Of the phospholipids examined, only the content of membrane phosphatidylserine was significantly lower in the trained group. Fatty acid analysis showed that the amount of docosahexaenoic acid in membrane phosphatidylserine was lower in the trained group. There was no significant difference between the fatty acid compositions of membrane phosphatidylcholine in the two groups. Maximal exercise decreased membrane phosphatidylserine in the control group but not in the trained group. It also significantly decreased the relative amounts of unsaturated fatty acids in both phosphatidylcholine and phosphatidylserine in the untrained group. Maximal oxygen uptake was negatively correlated with the amount of erythrocyte membrane phosphatidylserine. These results would indicate that both physical training and acute exercise decrease phosphatidylserine and polyunsaturated fatty acids in erythrocyte membranes, possibly due to lipid peroxidation, suggesting limited enhancement of erythrocyte defense mechanisms in adaptation to chronic oxidative stress. |
| Databáze: | OpenAIRE |
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