The study was aimed at tracking the proteomic profile of urine in 8 normal volunteers to 5-day dry immersion (DI). The proteome composition was determined by chromatography-mass spectrometry on high-efficient on-line liquid nano chromatograph Agilent 1100; complementary information about the protein spectra was obtained by dint of mass-spectrometer MaXis Impact 4G and hybrid mass-spectrometer LTQ-FT. Functional associations between proteins and biological functions were analyzed using computer system ANDCell (Associative Networks Discovery in Cells). A total of 256 proteins were identified; for 43 proteins difference in the detection rate during the baseline data collection and on DI day 4 exceeded 20%.

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