[The acid-base status and blood indices in rats following hyperbaric oxygenation].

Acid-base equilibrium, glycolytic parameters, electrophoretic mobility and hemoglobin oxygen affinity in blood of rats exposed to hyperbaric oxygenation were measured. The animals were kept at 2026 kPa for 15, 30 or 60 min. It was found that the short-term oxygenation led to changes in acid-base equilibrium, then to biochemical changes in plasma and erythrocytes and, consequently, to a higher oxygen-binding ability of hemoglobin.

[Functional properties of hemoglobin during blood incubation in oxygen].

The affinity of hemoglobin for oxygen was studied during blood incubation in oxygen, air and argon. It was shown that the affinity of hemoglobin for oxygen increased during incubation of blood and hemoglobin in oxygen and air, and remained unchanged on incubation in argon. The concentration of 2,3-diphosphoglycerin acid and glucose in blood samples drastically fell in all the experiments.

[The oxygen affinity of hemoglobin in the reindeer Rangifer tarandus before and after labor].

It has been demonstrated that the affinity of hemoglobin to oxygen in the reindeer Rangifer tarandus decreases with ageing. The value of P50 for hemoglobin of 2-3 month foetuses is equal to 22.0 +/- 0.