Abstract

We analyzed protein profile of urine samples obtained from 7 Russian cosmonauts (age 35-51 years), participants of space flights on the International Space Station lasting for 169-199 days. Gradient chromatography with linear increase of eluent proportion was carried out in a system consisting of an Agilent 1100 chromatograph (Agilent Technologies Inc.) and a hybrid mass-spectrometer LTQ-FT Ultra (Thermo). The obtained results help to understand changes in the human body induced by space flight factors.

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