O. A. Valeeva

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The study was conducted during the experiment with a 105-day isolation in an experimental complex. Urine samples were collected from six healthy volunteers. The physical activity, diurnal rhythm, temperature parameters, and levels of oxygen and carbon dioxide were controlled during the experiment. According to the program, food intake (electrolysis, water,(More)
The protein composition (proteome) of the body fluids is rather flexible; it can change, responding to various factors of the external environment and changes in the internal environment. In order to study the variability of the proteome profile in healthy humans under the conditions of total control of vital rhythm, physical activity, and diet, urine(More)
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(More)
In this study we examined alterations in proteome of blood plasma of healthy persons induced by dry immersion. We studied blood plasma from 14 19- to 26-year-old healthy men sampled 7 and 2 days prior to the start, days 2, 3, and 5 of, and 1, 3, 7, and 15 days after the end of the experiment. Prior to direct MALDI-TOF spectrometric profiling, serum samples(More)
Renal function and body composition, including fluids, were studied during space flight conditions imitation with five-day dry immersion in 14 apparently healthy men. Noninvasive research of water spaces of the body was performed using methods of bioimpedance analysis (BIA). It was shown that renal excretion of fluids increased and negative aqueous balance(More)
Renal function and body composition, including liquids, were investigated in 14 essentially healthy male subjects during simulation of some spaceflight effects by 5-d dry immersion (DI). Noninvasive measurement of water spaces of organism was performed with the methods of bio-impedance analysis (BIA). Increase of renal excretion of liquids and appearance of(More)
Purpose of the investigation was to determine changes in blood plasma proteome in healthy human subjects (n = 14, 19 to 26 y.o.) in an experiment with dry immersion (DI). Plasma samples were drawn 7 and 2 days before the exposure, on DI days 2, 3 and 5, and on days 1, 3, 7 and 15 after the experiment. Previous to direct MALDI-TOF mass-spectrometric(More)
Changes in the proteome of urine and blood serum obtained from 14 healthy humans (aged 21–29 years), medically approved for the experiment with dry immersion, have been studied. Urine and serum samples were fractionated and concentrated using MB–WCX and MB–HIC magnetic particles, respectively. Direct mass spectrometry profiling by MSLDI–TOF was carried out(More)
Human proteome is very plastic, it changes under the influence of various biological factors. It is of big interest to find out how specific factors of an environment, including a long-term isolation affect on urine proteome. The study was conducted during the experiment with 105-day isolation. In the present investigation we collected urine samples from 6(More)
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