Abstract
The physiological response to the physical exercise involves a number of changes in the oxidative balance and in the metabolism of some important biological molecules, including nitric oxide (NO) and heat shock proteins (Hsp 70). With the aim to optimise previous laboratory diagnostic panels, we measured the plasma concentration of reactive oxygen metabolites (ROMs), total antioxidant status (TAS), glutathione reductase (GR) activity, and NO and Hsp 70 levels in 44 elite, antioxidant-supplemented and trained soccer players and in 15 sedentary controls. Although no statistically significant difference between athletes and controls was detected in the plasma level of ROMs and TAS, soccer players showed a significantly higher plasma GR activity, NO and Hst 70 levels than those of sedentary controls. These findings suggest that the measuring of relatively novel biomarkers in sport medicine, like GR, NO and Hsp 70, in addition to the well-known and reliable assays (d-ROMs test and TAS) may be useful to a clinician to better assess and evaluate the benefits of training and/or supplementation programs.
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Acknowledgements
This study was funded by grants awarded by FIRST-MIUR. We are grateful to Ms. J. D. Baggott for English editing, and to RANDOX Ltd Italia for TAS and GR assay kits.
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Banfi, G., Malavazos, A., Iorio, E. et al. Plasma oxidative stress biomarkers, nitric oxide and heat shock protein 70 in trained elite soccer players. Eur J Appl Physiol 96, 483–486 (2006). https://doi.org/10.1007/s00421-005-0104-6
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DOI: https://doi.org/10.1007/s00421-005-0104-6