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Biomedical subjects

G D Syrykh

Publications and source records attributed to G D Syrykh.

7 recordsLinked to original sources
PubMedDate not supplied

[Intestinal microflora makeup of astronauts before and after space flights].

The composition of the intestinal microflora of 12 cosmonauts was studied before and after space missions of varying duration. Changes in the intestinal microbial coenosis were found prelaunch. The pattern of changes did not vary with an increase in space flight duration. The use of special prophylactic measures exerted a positive effect on intestinal microecology. Bifidobacteria and lactobacilli showed the greatest changes inflight. Therefore, it seems important to arrange preflight sanation of the intestinal microflora as a prophylactic method.

Actinomycetaceae↗
PubMedDate not supplied

[Results of a study of vestibular function and space perception among members of the crew of the first and second "Sal'iut 6" space station expedition].

The results of studies of the vestibular function and spatial perception function in crewmembers of long-term (96- and 140-day) space missions aboard Salyut-6 are presented. Similar changes and individual variations are revealed. All the cosmonauts have shown the following changes: increased reactivity of the otolith organ, decreased sensitivity of the cupular system, asymmetry of most parameters studied, and illusory reactions inflight, individual reactions are as follows: level of changes, dynamics and time of recovery, development of vestibulo-vegetative symptomocomplex during early adaptation to zero-g, signs of decline in vestibulo-vegetative tolerance postflight, and changes in reciprocal relations between the otolith organ and semicircular canals.

Acoustic Maculae↗
PubMedDate not supplied

[Digestive system status after prolonged space flights].

In the crewmembers of four Salyut-6 long-term flights, enzyme excretory function of the gastro-intestinal tract was investigated. These studies included: gastric proenzyme, pepsinogen, and pancreatic enzymes, amylase and lipase, in blood and urine, trypsin in blood, intestinal enzymes, invertase and glycyl-L-leucine dipeptidase in feces, and lipids in feces. The results obtained demonstrated a correlation between changes in enzyme excretion and space flight duration and profile. After the 140- and 175-day flight the most marked changes in the digestive organs were seen; they manifested as a simultaneous increase in secretory function of the stomach and the pancreas. However, after the 185-day flight, in which advanced countermeasures were used, the above changes were less distinct.

Digestive System↗
PubMedDate not supplied

[Results of the clinical examination of the cosmonauts after a 63-day flight].

The cosmonauts P. I. Klimuk and V.I. Sevastyanov during their 63-day flight showed functional changes that were identical to those they demonstrated during their shorterterm flights. During the long-term mission they adapted to the weightless state better than previously. Post-flight medical examinations revealed no pathologies. The following functional changes were found: general asthenization and signs of vegetative-vascular intolerance, sensory-motor and stato-kinetic disorders, moderate muscular dystrophy of lower extremities, slight inhibition of erythropoiesis. P.I. Klimuk displayed vestibular disturbances postflight. Both cosmonauts recovered without any complications.

Adaptation, Physiological↗