Publications by authors named "Rustamian L"

From the findings of biochemical blood analyses obtained during original examinations of 24 cosmonauts with a repeat blood sampling (2-5 times) of each test subject there calculated the mean values of norm and the interval limits of norm using 33 biochemical blood indices for a given group of test subjects. It is shown that in the absence of significant discrepancies from the generally used mean population standards for the cosmonauts it is typical of some specific differences from universally adopted standards of the parameters mainly related to energy metabolism.

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Exercise tests were carried out before as well as on days 128 and 248 of a 370-day head-down tilt study. The test subjects, who took part in the study, were divided into two groups that used different regimens of countermeasures (drugs and exercise). During exercise tests the following serum parameters were measured: lactate, pyruvate, glucose, triglycerides, nonesterified fatty acids, lactate dehydrogenase, alpha-hydroxybutyrate dehydrogenase, malate dehydrogenase, creatine phosphokinase.

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Wistar male rats weighing 250-270 g were exposed to hypokinesia for 7, 15, 35 or 60 days. Spongy bone of the metaphysis of long bones, vertebral body, breast bone and iliac bone were examined histomorphometrically. It was found that during hypokinesia osteoporosis developed in two stages: Stage 1 (from hypokinesia day 1 to day 15) was characterized by a drastic bone mass loss due to stress-effects (steroid osteopenia) and Stage 2 (from hypokinesia day 15 to the end) was characterized by adaptive changes which included steady-state development and transition to a lower functional level (immobilization osteoporosis).

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Two groups of 5 healthy volunteers each were exposed for 7 days to: 1) group 1 to horizontal bed rest and 2) group 2 to head-down tilt at -6 degrees. The purpose of the study was to determine the effect of body position on fluid-electrolyte metabolism and renal function. During the control period (14 days), bed rest and the recovery period the consumption of fluids and mineral substances and their renal excretion were measured.

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