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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Effect of acute exercise on low molecular weight thiols in plasma.

An important defence against free radicals is represented by plasma low molecular weight (LMW) thiols that compose a dynamic system of reduced and oxidized forms able to act as a buffer redox system. This study examined the effect of an acute graded exercise bout on LMW thiols in 16 young subjects (six sedentaries and 10 athletes). Blood analysis was performed before and immediately after the exercise and total and reduced thiols were measured in order to evaluate the thiol redox status. Findings suggested that the exercise test proposed was not enough to imbalance the redox status of all LMW thiols. However, when the redox status was evaluated for each thiol, it was evident that homocysteine (Hcy) redox status was significantly different after physical activity. In particular, we found a lower level of reduced Hcy after the exercise test both in sedentaries and in athletes. We concluded that duration and intensity of the proposed exercise were not enough to promote a reactive oxygen species production able to imbalance the redox thiols status and that the lowering of the reduced Hcy form may be due to the effect produced during the effort on the synthesis and/or removal processes of Hcy.[1]

References

  1. Effect of acute exercise on low molecular weight thiols in plasma. Zinellu, A., Sotgia, S., Caria, M.A., Tangianu, F., Casu, G., Deiana, L., Carru, C. Scand. J. Med. Sci. Sports (2007) [Pubmed]
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