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Evolution of the plasma proteome of divers before and after a single SCUBA dive

Abstract : Purpose: Decompression sickness (DCS) is a poorly understood and complex systemic disease caused by inadequate desaturation following a reduction of ambient pressure. A previous proteomic study of ours showed that DCS occurrence but not diving was associated with changes in the plasma proteome in rats, including a dramatic decrease of abundance of the tetrameric form of Transthyretin (TTR). The present study aims to assess the impact on the human blood proteome of a dive inducing significant decompression stress but without inducing DCS symptoms. Experimental design: Twelve healthy male divers were subjected to a single dive at a depth of 18 m of sea water (msw) with a 47-min bottom time followed by a direct ascent to the surface at a rate of 9 msw/min. Venous blood was collected before the dive as well as 30 min and 2 h following the dive. The plasma proteomes from four individuals were then analyzed by using a two-dimensional electrophoresis-based proteomic strategy. Results: No protein spot showed a significantly changed abundance (fdr<0.1) between the tested times. Conclusion: These results strengthen the hypothesis according to which significant changes of the plasma proteome measurable with two-dimensional electrophoresis may only occur along with DCS symptoms.
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https://hal.univ-brest.fr/hal-01723941
Contributor : François Guerrero Connect in order to contact the contributor
Submitted on : Monday, March 5, 2018 - 8:42:11 PM
Last modification on : Tuesday, May 10, 2022 - 3:25:41 PM

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Jacky Lautridou, Vianney Pichereau, Sébastien Artigaud, Benoit Bernay, Otto Barak, et al.. Evolution of the plasma proteome of divers before and after a single SCUBA dive. PROTEOMICS - Clinical Applications, Wiley-VCH Verlag, 2017, 11 (9-10), pp.1700016. ⟨10.1002/prca.201700016⟩. ⟨hal-01723941⟩

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