Abstract：
:Electrolyte concentration in sweat depends on environmental context and physical condition but also on the pathophysiological status. Sweat analyzers may be therefore the future way for biological survey although how sweat electrolyte composition can reflect plasma composition remains unclear. We recruited 10 healthy subjects and 6 patients to have a broad range of plasma electrolyte concentrations (chloride, potassium and sodium) and pH. These variables were compared to those found in sweat produced following cycling exercise or pilocarpine iontophoresis, a condition compatible with operating a wearable device. We found no correlation between plasma and sweat parameters when exercise-induced sweat was analyzed, and we could identify a correlation only between plasma and sweat potassium concentration (R = 0.78, p < 0.01) when sweat was induced using pilocarpine iontophoresis. We tested measurement repeatability in sweat at 24hr-interval for 3 days in 4 subjects and found a great intra-individual variability regarding all parameters in exercise-induced sweat whereas similar electrolyte levels were measured in pilocarpine-induced sweat. Thus, electrolyte concentration in sweat sampled following physical activity does not reflect concentration in plasma while pilocarpine iontophoresis appears to be promising to reproducibly address sweat electrolytes, and to make an indirect evaluation of plasma potassium concentration in chronic kidney disease and arrhythmia.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Vairo D,Bruzzese L,Marlinge M,Fuster L,Adjriou N,Kipson N,Brunet P,Cautela J,Jammes Y,Mottola G,Burtey S,Ruf J,Guieu R,Fenouillet Edoi
10.1038/s41598-017-12211-ysubject
Has Abstractpub_date
2017-09-18 00:00:00pages
11801issue
1issn
2045-2322pii
10.1038/s41598-017-12211-yjournal_volume
7pub_type
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